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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2011 New Dream Network | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | * | |
13 | */ | |
14 | #include "include/int_types.h" | |
15 | ||
16 | #include <errno.h> | |
17 | ||
18 | #include "cls/rbd/cls_rbd_types.h" | |
19 | #include "common/dout.h" | |
20 | #include "common/errno.h" | |
21 | #include "common/TracepointProvider.h" | |
22 | #include "include/Context.h" | |
23 | ||
24 | #include "cls/rbd/cls_rbd_client.h" | |
25 | #include "cls/rbd/cls_rbd_types.h" | |
26 | #include "librbd/ImageCtx.h" | |
27 | #include "librbd/ImageState.h" | |
28 | #include "librbd/internal.h" | |
29 | #include "librbd/Operations.h" | |
30 | #include "librbd/api/DiffIterate.h" | |
31 | #include "librbd/api/Group.h" | |
32 | #include "librbd/api/Mirror.h" | |
33 | #include "librbd/io/AioCompletion.h" | |
34 | #include "librbd/io/ImageRequestWQ.h" | |
35 | #include "librbd/io/ReadResult.h" | |
36 | #include <algorithm> | |
37 | #include <string> | |
38 | #include <vector> | |
39 | ||
40 | #ifdef WITH_LTTNG | |
41 | #define TRACEPOINT_DEFINE | |
42 | #define TRACEPOINT_PROBE_DYNAMIC_LINKAGE | |
43 | #include "tracing/librbd.h" | |
44 | #undef TRACEPOINT_PROBE_DYNAMIC_LINKAGE | |
45 | #undef TRACEPOINT_DEFINE | |
46 | #else | |
47 | #define tracepoint(...) | |
48 | #endif | |
49 | ||
50 | #define dout_subsys ceph_subsys_rbd | |
51 | #undef dout_prefix | |
52 | #define dout_prefix *_dout << "librbd: " | |
53 | ||
54 | using std::string; | |
55 | using std::vector; | |
56 | ||
57 | using ceph::bufferlist; | |
58 | using librados::snap_t; | |
59 | using librados::IoCtx; | |
60 | ||
61 | namespace { | |
62 | ||
63 | TracepointProvider::Traits tracepoint_traits("librbd_tp.so", "rbd_tracing"); | |
64 | ||
65 | buffer::raw* create_write_raw(librbd::ImageCtx *ictx, const char *buf, | |
66 | size_t len) { | |
67 | // TODO: until librados can guarantee memory won't be referenced after | |
68 | // it ACKs a request, always make a copy of the user-provided memory | |
69 | return buffer::copy(buf, len); | |
70 | } | |
71 | ||
72 | CephContext* get_cct(IoCtx &io_ctx) { | |
73 | return reinterpret_cast<CephContext*>(io_ctx.cct()); | |
74 | } | |
75 | ||
76 | librbd::io::AioCompletion* get_aio_completion(librbd::RBD::AioCompletion *comp) { | |
77 | return reinterpret_cast<librbd::io::AioCompletion *>(comp->pc); | |
78 | } | |
79 | ||
80 | struct C_AioCompletion : public Context { | |
81 | CephContext *cct; | |
82 | librbd::io::aio_type_t aio_type; | |
83 | librbd::io::AioCompletion* aio_comp; | |
84 | ||
85 | C_AioCompletion(librbd::ImageCtx *ictx, librbd::io::aio_type_t aio_type, | |
86 | librbd::io::AioCompletion* aio_comp) | |
87 | : cct(ictx->cct), aio_type(aio_type), aio_comp(aio_comp) { | |
88 | aio_comp->init_time(ictx, aio_type); | |
89 | aio_comp->get(); | |
90 | } | |
91 | ||
92 | void finish(int r) override { | |
93 | ldout(cct, 20) << "C_AioComplete::finish: r=" << r << dendl; | |
94 | if (r < 0) { | |
95 | aio_comp->fail(r); | |
96 | } else { | |
97 | aio_comp->lock.Lock(); | |
98 | aio_comp->complete(); | |
99 | aio_comp->put_unlock(); | |
100 | } | |
101 | } | |
102 | }; | |
103 | ||
104 | struct C_OpenComplete : public C_AioCompletion { | |
105 | librbd::ImageCtx *ictx; | |
106 | void **ictxp; | |
107 | bool reopen; | |
108 | C_OpenComplete(librbd::ImageCtx *ictx, librbd::io::AioCompletion* comp, | |
109 | void **ictxp) | |
110 | : C_AioCompletion(ictx, librbd::io::AIO_TYPE_OPEN, comp), | |
111 | ictx(ictx), ictxp(ictxp) { | |
112 | } | |
113 | void finish(int r) override { | |
114 | ldout(ictx->cct, 20) << "C_OpenComplete::finish: r=" << r << dendl; | |
115 | if (r < 0) { | |
116 | *ictxp = nullptr; | |
117 | } else { | |
118 | *ictxp = ictx; | |
119 | } | |
120 | ||
121 | C_AioCompletion::finish(r); | |
122 | } | |
123 | }; | |
124 | ||
125 | struct C_OpenAfterCloseComplete : public Context { | |
126 | librbd::ImageCtx *ictx; | |
127 | librbd::io::AioCompletion* comp; | |
128 | void **ictxp; | |
129 | C_OpenAfterCloseComplete(librbd::ImageCtx *ictx, | |
130 | librbd::io::AioCompletion* comp, | |
131 | void **ictxp) | |
132 | : ictx(ictx), comp(comp), ictxp(ictxp) { | |
133 | } | |
134 | void finish(int r) override { | |
135 | ldout(ictx->cct, 20) << "C_OpenAfterCloseComplete::finish: r=" << r | |
136 | << dendl; | |
137 | delete reinterpret_cast<librbd::ImageCtx*>(*ictxp); | |
138 | *ictxp = nullptr; | |
139 | ||
140 | ictx->state->open(false, new C_OpenComplete(ictx, comp, ictxp)); | |
141 | } | |
142 | }; | |
143 | ||
144 | struct C_UpdateWatchCB : public librbd::UpdateWatchCtx { | |
145 | rbd_update_callback_t watch_cb; | |
146 | void *arg; | |
147 | uint64_t handle = 0; | |
148 | ||
149 | C_UpdateWatchCB(rbd_update_callback_t watch_cb, void *arg) : | |
150 | watch_cb(watch_cb), arg(arg) { | |
151 | } | |
152 | void handle_notify() override { | |
153 | watch_cb(arg); | |
154 | } | |
155 | }; | |
156 | ||
157 | void group_image_status_cpp_to_c(const librbd::group_image_status_t &cpp_status, | |
158 | rbd_group_image_status_t *c_status) { | |
159 | c_status->spec.name = strdup(cpp_status.name.c_str()); | |
160 | c_status->spec.pool = cpp_status.pool; | |
161 | c_status->state = cpp_status.state; | |
162 | } | |
163 | ||
164 | void group_spec_cpp_to_c(const librbd::group_spec_t &cpp_spec, | |
165 | rbd_group_spec_t *c_spec) { | |
166 | c_spec->name = strdup(cpp_spec.name.c_str()); | |
167 | c_spec->pool = cpp_spec.pool; | |
168 | } | |
169 | ||
170 | void mirror_image_info_cpp_to_c(const librbd::mirror_image_info_t &cpp_info, | |
171 | rbd_mirror_image_info_t *c_info) { | |
172 | c_info->global_id = strdup(cpp_info.global_id.c_str()); | |
173 | c_info->state = cpp_info.state; | |
174 | c_info->primary = cpp_info.primary; | |
175 | } | |
176 | ||
177 | void mirror_image_status_cpp_to_c(const librbd::mirror_image_status_t &cpp_status, | |
178 | rbd_mirror_image_status_t *c_status) { | |
179 | c_status->name = strdup(cpp_status.name.c_str()); | |
180 | mirror_image_info_cpp_to_c(cpp_status.info, &c_status->info); | |
181 | c_status->state = cpp_status.state; | |
182 | c_status->description = strdup(cpp_status.description.c_str()); | |
183 | c_status->last_update = cpp_status.last_update; | |
184 | c_status->up = cpp_status.up; | |
185 | } | |
186 | ||
187 | void trash_image_info_cpp_to_c(const librbd::trash_image_info_t &cpp_info, | |
188 | rbd_trash_image_info_t *c_info) { | |
189 | c_info->id = strdup(cpp_info.id.c_str()); | |
190 | c_info->name = strdup(cpp_info.name.c_str()); | |
191 | c_info->source = cpp_info.source; | |
192 | c_info->deletion_time = cpp_info.deletion_time; | |
193 | c_info->deferment_end_time = cpp_info.deferment_end_time; | |
194 | } | |
195 | ||
196 | struct C_MirrorImageGetInfo : public Context { | |
197 | rbd_mirror_image_info_t *mirror_image_info; | |
198 | Context *on_finish; | |
199 | ||
200 | librbd::mirror_image_info_t cpp_mirror_image_info; | |
201 | ||
202 | C_MirrorImageGetInfo(rbd_mirror_image_info_t *mirror_image_info, | |
203 | Context *on_finish) | |
204 | : mirror_image_info(mirror_image_info), on_finish(on_finish) { | |
205 | } | |
206 | ||
207 | void finish(int r) override { | |
208 | if (r < 0) { | |
209 | on_finish->complete(r); | |
210 | return; | |
211 | } | |
212 | ||
213 | mirror_image_info_cpp_to_c(cpp_mirror_image_info, mirror_image_info); | |
214 | on_finish->complete(0); | |
215 | } | |
216 | }; | |
217 | ||
218 | struct C_MirrorImageGetStatus : public Context { | |
219 | rbd_mirror_image_status_t *mirror_image_status; | |
220 | Context *on_finish; | |
221 | ||
222 | librbd::mirror_image_status_t cpp_mirror_image_status; | |
223 | ||
224 | C_MirrorImageGetStatus(rbd_mirror_image_status_t *mirror_image_status, | |
225 | Context *on_finish) | |
226 | : mirror_image_status(mirror_image_status), on_finish(on_finish) { | |
227 | } | |
228 | ||
229 | void finish(int r) override { | |
230 | if (r < 0) { | |
231 | on_finish->complete(r); | |
232 | return; | |
233 | } | |
234 | ||
235 | mirror_image_status_cpp_to_c(cpp_mirror_image_status, mirror_image_status); | |
236 | on_finish->complete(0); | |
237 | } | |
238 | }; | |
239 | ||
240 | } // anonymous namespace | |
241 | ||
242 | namespace librbd { | |
243 | ProgressContext::~ProgressContext() | |
244 | { | |
245 | } | |
246 | ||
247 | class CProgressContext : public ProgressContext | |
248 | { | |
249 | public: | |
250 | CProgressContext(librbd_progress_fn_t fn, void *data) | |
251 | : m_fn(fn), m_data(data) | |
252 | { | |
253 | } | |
254 | int update_progress(uint64_t offset, uint64_t src_size) override | |
255 | { | |
256 | return m_fn(offset, src_size, m_data); | |
257 | } | |
258 | private: | |
259 | librbd_progress_fn_t m_fn; | |
260 | void *m_data; | |
261 | }; | |
262 | ||
263 | /* | |
264 | RBD | |
265 | */ | |
266 | RBD::RBD() | |
267 | { | |
268 | } | |
269 | ||
270 | RBD::~RBD() | |
271 | { | |
272 | } | |
273 | ||
274 | void RBD::version(int *major, int *minor, int *extra) | |
275 | { | |
276 | rbd_version(major, minor, extra); | |
277 | } | |
278 | ||
279 | int RBD::open(IoCtx& io_ctx, Image& image, const char *name) | |
280 | { | |
281 | return open(io_ctx, image, name, NULL); | |
282 | } | |
283 | ||
284 | int RBD::open_by_id(IoCtx& io_ctx, Image& image, const char *id) | |
285 | { | |
286 | return open_by_id(io_ctx, image, id, nullptr); | |
287 | } | |
288 | ||
289 | int RBD::open(IoCtx& io_ctx, Image& image, const char *name, | |
290 | const char *snap_name) | |
291 | { | |
292 | ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, false); | |
293 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
294 | tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
295 | ||
296 | if (image.ctx != NULL) { | |
297 | reinterpret_cast<ImageCtx*>(image.ctx)->state->close(); | |
298 | image.ctx = NULL; | |
299 | } | |
300 | ||
301 | int r = ictx->state->open(false); | |
302 | if (r < 0) { | |
303 | tracepoint(librbd, open_image_exit, r); | |
304 | return r; | |
305 | } | |
306 | ||
307 | image.ctx = (image_ctx_t) ictx; | |
308 | tracepoint(librbd, open_image_exit, 0); | |
309 | return 0; | |
310 | } | |
311 | ||
312 | int RBD::open_by_id(IoCtx& io_ctx, Image& image, const char *id, | |
313 | const char *snap_name) | |
314 | { | |
315 | ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, false); | |
316 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
317 | tracepoint(librbd, open_image_by_id_enter, ictx, ictx->id.c_str(), | |
318 | ictx->snap_name.c_str(), ictx->read_only); | |
319 | ||
320 | if (image.ctx != nullptr) { | |
321 | reinterpret_cast<ImageCtx*>(image.ctx)->state->close(); | |
322 | image.ctx = nullptr; | |
323 | } | |
324 | ||
325 | int r = ictx->state->open(false); | |
326 | if (r < 0) { | |
327 | tracepoint(librbd, open_image_by_id_exit, r); | |
328 | return r; | |
329 | } | |
330 | ||
331 | image.ctx = (image_ctx_t) ictx; | |
332 | tracepoint(librbd, open_image_by_id_exit, 0); | |
333 | return 0; | |
334 | } | |
335 | ||
336 | int RBD::aio_open(IoCtx& io_ctx, Image& image, const char *name, | |
337 | const char *snap_name, RBD::AioCompletion *c) | |
338 | { | |
339 | ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, false); | |
340 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
341 | tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, c->pc); | |
342 | ||
343 | if (image.ctx != NULL) { | |
344 | reinterpret_cast<ImageCtx*>(image.ctx)->state->close( | |
345 | new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx)); | |
346 | } else { | |
347 | ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(c), | |
348 | &image.ctx)); | |
349 | } | |
350 | tracepoint(librbd, aio_open_image_exit, 0); | |
351 | return 0; | |
352 | } | |
353 | ||
354 | int RBD::aio_open_by_id(IoCtx& io_ctx, Image& image, const char *id, | |
355 | const char *snap_name, RBD::AioCompletion *c) | |
356 | { | |
357 | ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, false); | |
358 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
359 | tracepoint(librbd, aio_open_image_by_id_enter, ictx, ictx->id.c_str(), | |
360 | ictx->snap_name.c_str(), ictx->read_only, c->pc); | |
361 | ||
362 | if (image.ctx != nullptr) { | |
363 | reinterpret_cast<ImageCtx*>(image.ctx)->state->close( | |
364 | new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx)); | |
365 | } else { | |
366 | ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(c), | |
367 | &image.ctx)); | |
368 | } | |
369 | tracepoint(librbd, aio_open_image_by_id_exit, 0); | |
370 | return 0; | |
371 | } | |
372 | ||
373 | int RBD::open_read_only(IoCtx& io_ctx, Image& image, const char *name, | |
374 | const char *snap_name) | |
375 | { | |
376 | ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, true); | |
377 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
378 | tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
379 | ||
380 | if (image.ctx != NULL) { | |
381 | reinterpret_cast<ImageCtx*>(image.ctx)->state->close(); | |
382 | image.ctx = NULL; | |
383 | } | |
384 | ||
385 | int r = ictx->state->open(false); | |
386 | if (r < 0) { | |
387 | tracepoint(librbd, open_image_exit, r); | |
388 | return r; | |
389 | } | |
390 | ||
391 | image.ctx = (image_ctx_t) ictx; | |
392 | tracepoint(librbd, open_image_exit, 0); | |
393 | return 0; | |
394 | } | |
395 | ||
396 | int RBD::open_by_id_read_only(IoCtx& io_ctx, Image& image, const char *id, | |
397 | const char *snap_name) | |
398 | { | |
399 | ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, true); | |
400 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
401 | tracepoint(librbd, open_image_by_id_enter, ictx, ictx->id.c_str(), | |
402 | ictx->snap_name.c_str(), ictx->read_only); | |
403 | ||
404 | if (image.ctx != nullptr) { | |
405 | reinterpret_cast<ImageCtx*>(image.ctx)->state->close(); | |
406 | image.ctx = nullptr; | |
407 | } | |
408 | ||
409 | int r = ictx->state->open(false); | |
410 | if (r < 0) { | |
411 | tracepoint(librbd, open_image_by_id_exit, r); | |
412 | return r; | |
413 | } | |
414 | ||
415 | image.ctx = (image_ctx_t) ictx; | |
416 | tracepoint(librbd, open_image_by_id_exit, 0); | |
417 | return 0; | |
418 | } | |
419 | ||
420 | int RBD::aio_open_read_only(IoCtx& io_ctx, Image& image, const char *name, | |
421 | const char *snap_name, RBD::AioCompletion *c) | |
422 | { | |
423 | ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, true); | |
424 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
425 | tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, c->pc); | |
426 | ||
427 | if (image.ctx != NULL) { | |
428 | reinterpret_cast<ImageCtx*>(image.ctx)->state->close( | |
429 | new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx)); | |
430 | } else { | |
431 | ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(c), | |
432 | &image.ctx)); | |
433 | } | |
434 | tracepoint(librbd, aio_open_image_exit, 0); | |
435 | return 0; | |
436 | } | |
437 | ||
438 | int RBD::aio_open_by_id_read_only(IoCtx& io_ctx, Image& image, const char *id, | |
439 | const char *snap_name, RBD::AioCompletion *c) | |
440 | { | |
441 | ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, true); | |
442 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
443 | tracepoint(librbd, aio_open_image_by_id_enter, ictx, ictx->id.c_str(), | |
444 | ictx->snap_name.c_str(), ictx->read_only, c->pc); | |
445 | ||
446 | if (image.ctx != nullptr) { | |
447 | reinterpret_cast<ImageCtx*>(image.ctx)->state->close( | |
448 | new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx)); | |
449 | } else { | |
450 | ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(c), | |
451 | &image.ctx)); | |
452 | } | |
453 | tracepoint(librbd, aio_open_image_by_id_exit, 0); | |
454 | return 0; | |
455 | } | |
456 | ||
457 | int RBD::create(IoCtx& io_ctx, const char *name, uint64_t size, int *order) | |
458 | { | |
459 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
460 | tracepoint(librbd, create_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, *order); | |
461 | int r = librbd::create(io_ctx, name, size, order); | |
462 | tracepoint(librbd, create_exit, r, *order); | |
463 | return r; | |
464 | } | |
465 | ||
466 | int RBD::create2(IoCtx& io_ctx, const char *name, uint64_t size, | |
467 | uint64_t features, int *order) | |
468 | { | |
469 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
470 | tracepoint(librbd, create2_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order); | |
471 | int r = librbd::create(io_ctx, name, size, false, features, order, 0, 0); | |
472 | tracepoint(librbd, create2_exit, r, *order); | |
473 | return r; | |
474 | } | |
475 | ||
476 | int RBD::create3(IoCtx& io_ctx, const char *name, uint64_t size, | |
477 | uint64_t features, int *order, uint64_t stripe_unit, | |
478 | uint64_t stripe_count) | |
479 | { | |
480 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
481 | tracepoint(librbd, create3_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order, stripe_unit, stripe_count); | |
482 | int r = librbd::create(io_ctx, name, size, false, features, order, | |
483 | stripe_unit, stripe_count); | |
484 | tracepoint(librbd, create3_exit, r, *order); | |
485 | return r; | |
486 | } | |
487 | ||
488 | int RBD::create4(IoCtx& io_ctx, const char *name, uint64_t size, | |
489 | ImageOptions& opts) | |
490 | { | |
491 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
492 | tracepoint(librbd, create4_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, opts.opts); | |
493 | int r = librbd::create(io_ctx, name, "", size, opts, "", "", false); | |
494 | tracepoint(librbd, create4_exit, r); | |
495 | return r; | |
496 | } | |
497 | ||
498 | int RBD::clone(IoCtx& p_ioctx, const char *p_name, const char *p_snap_name, | |
499 | IoCtx& c_ioctx, const char *c_name, uint64_t features, | |
500 | int *c_order) | |
501 | { | |
502 | TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioctx)); | |
503 | tracepoint(librbd, clone_enter, p_ioctx.get_pool_name().c_str(), p_ioctx.get_id(), p_name, p_snap_name, c_ioctx.get_pool_name().c_str(), c_ioctx.get_id(), c_name, features); | |
504 | int r = librbd::clone(p_ioctx, p_name, p_snap_name, c_ioctx, c_name, | |
505 | features, c_order, 0, 0); | |
506 | tracepoint(librbd, clone_exit, r, *c_order); | |
507 | return r; | |
508 | } | |
509 | ||
510 | int RBD::clone2(IoCtx& p_ioctx, const char *p_name, const char *p_snap_name, | |
511 | IoCtx& c_ioctx, const char *c_name, uint64_t features, | |
512 | int *c_order, uint64_t stripe_unit, int stripe_count) | |
513 | { | |
514 | TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioctx)); | |
515 | tracepoint(librbd, clone2_enter, p_ioctx.get_pool_name().c_str(), p_ioctx.get_id(), p_name, p_snap_name, c_ioctx.get_pool_name().c_str(), c_ioctx.get_id(), c_name, features, stripe_unit, stripe_count); | |
516 | int r = librbd::clone(p_ioctx, p_name, p_snap_name, c_ioctx, c_name, | |
517 | features, c_order, stripe_unit, stripe_count); | |
518 | tracepoint(librbd, clone2_exit, r, *c_order); | |
519 | return r; | |
520 | } | |
521 | ||
522 | int RBD::clone3(IoCtx& p_ioctx, const char *p_name, const char *p_snap_name, | |
523 | IoCtx& c_ioctx, const char *c_name, ImageOptions& c_opts) | |
524 | { | |
525 | TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioctx)); | |
526 | tracepoint(librbd, clone3_enter, p_ioctx.get_pool_name().c_str(), p_ioctx.get_id(), p_name, p_snap_name, c_ioctx.get_pool_name().c_str(), c_ioctx.get_id(), c_name, c_opts.opts); | |
527 | int r = librbd::clone(p_ioctx, p_name, p_snap_name, c_ioctx, c_name, | |
528 | c_opts); | |
529 | tracepoint(librbd, clone3_exit, r); | |
530 | return r; | |
531 | } | |
532 | ||
533 | int RBD::remove(IoCtx& io_ctx, const char *name) | |
534 | { | |
535 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
536 | tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name); | |
537 | librbd::NoOpProgressContext prog_ctx; | |
538 | int r = librbd::remove(io_ctx, name, "", prog_ctx); | |
539 | tracepoint(librbd, remove_exit, r); | |
540 | return r; | |
541 | } | |
542 | ||
543 | int RBD::remove_with_progress(IoCtx& io_ctx, const char *name, | |
544 | ProgressContext& pctx) | |
545 | { | |
546 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
547 | tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name); | |
548 | int r = librbd::remove(io_ctx, name, "", pctx); | |
549 | tracepoint(librbd, remove_exit, r); | |
550 | return r; | |
551 | } | |
552 | ||
553 | int RBD::trash_move(IoCtx &io_ctx, const char *name, uint64_t delay) { | |
554 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
555 | tracepoint(librbd, trash_move_enter, io_ctx.get_pool_name().c_str(), | |
556 | io_ctx.get_id(), name); | |
557 | int r = librbd::trash_move(io_ctx, RBD_TRASH_IMAGE_SOURCE_USER, name, | |
558 | delay); | |
559 | tracepoint(librbd, trash_move_exit, r); | |
560 | return r; | |
561 | } | |
562 | ||
563 | int RBD::trash_get(IoCtx &io_ctx, const char *id, trash_image_info_t *info) { | |
564 | return librbd::trash_get(io_ctx, id, info); | |
565 | } | |
566 | ||
567 | int RBD::trash_list(IoCtx &io_ctx, vector<trash_image_info_t> &entries) { | |
568 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
569 | tracepoint(librbd, trash_list_enter, | |
570 | io_ctx.get_pool_name().c_str(), io_ctx.get_id()); | |
571 | int r = librbd::trash_list(io_ctx, entries); | |
572 | #ifdef WITH_LTTNG | |
573 | if (r >= 0) { | |
574 | for (const auto& entry : entries) { | |
575 | tracepoint(librbd, trash_list_entry, entry.id.c_str()); | |
576 | } | |
577 | } | |
578 | #endif | |
579 | tracepoint(librbd, trash_list_exit, r, r); | |
580 | return r; | |
581 | } | |
582 | ||
583 | int RBD::trash_remove(IoCtx &io_ctx, const char *image_id, bool force) { | |
584 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
585 | tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(), | |
586 | io_ctx.get_id(), image_id, force); | |
587 | librbd::NoOpProgressContext prog_ctx; | |
588 | int r = librbd::trash_remove(io_ctx, image_id, force, prog_ctx); | |
589 | tracepoint(librbd, trash_remove_exit, r); | |
590 | return r; | |
591 | } | |
592 | ||
593 | int RBD::trash_remove_with_progress(IoCtx &io_ctx, const char *image_id, | |
594 | bool force, ProgressContext &pctx) { | |
595 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
596 | tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(), | |
597 | io_ctx.get_id(), image_id, force); | |
598 | int r = librbd::trash_remove(io_ctx, image_id, force, pctx); | |
599 | tracepoint(librbd, trash_remove_exit, r); | |
600 | return r; | |
601 | } | |
602 | ||
603 | int RBD::trash_restore(IoCtx &io_ctx, const char *id, const char *name) { | |
604 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
605 | tracepoint(librbd, trash_undelete_enter, io_ctx.get_pool_name().c_str(), | |
606 | io_ctx.get_id(), id, name); | |
607 | int r = librbd::trash_restore(io_ctx, id, name); | |
608 | tracepoint(librbd, trash_undelete_exit, r); | |
609 | return r; | |
610 | } | |
611 | ||
612 | int RBD::list(IoCtx& io_ctx, vector<string>& names) | |
613 | { | |
614 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
615 | tracepoint(librbd, list_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id()); | |
616 | int r = librbd::list(io_ctx, names); | |
617 | if (r >= 0) { | |
618 | for (vector<string>::iterator itr = names.begin(), end = names.end(); itr != end; ++itr) { | |
619 | tracepoint(librbd, list_entry, itr->c_str()); | |
620 | } | |
621 | } | |
622 | tracepoint(librbd, list_exit, r, r); | |
623 | return r; | |
624 | } | |
625 | ||
626 | int RBD::rename(IoCtx& src_io_ctx, const char *srcname, const char *destname) | |
627 | { | |
628 | TracepointProvider::initialize<tracepoint_traits>(get_cct(src_io_ctx)); | |
629 | tracepoint(librbd, rename_enter, src_io_ctx.get_pool_name().c_str(), src_io_ctx.get_id(), srcname, destname); | |
630 | int r = librbd::rename(src_io_ctx, srcname, destname); | |
631 | tracepoint(librbd, rename_exit, r); | |
632 | return r; | |
633 | } | |
634 | ||
635 | int RBD::mirror_mode_get(IoCtx& io_ctx, rbd_mirror_mode_t *mirror_mode) { | |
636 | return librbd::api::Mirror<>::mode_get(io_ctx, mirror_mode); | |
637 | } | |
638 | ||
639 | int RBD::mirror_mode_set(IoCtx& io_ctx, rbd_mirror_mode_t mirror_mode) { | |
640 | return librbd::api::Mirror<>::mode_set(io_ctx, mirror_mode); | |
641 | } | |
642 | ||
643 | int RBD::mirror_peer_add(IoCtx& io_ctx, std::string *uuid, | |
644 | const std::string &cluster_name, | |
645 | const std::string &client_name) { | |
646 | return librbd::api::Mirror<>::peer_add(io_ctx, uuid, cluster_name, | |
647 | client_name); | |
648 | } | |
649 | ||
650 | int RBD::mirror_peer_remove(IoCtx& io_ctx, const std::string &uuid) { | |
651 | return librbd::api::Mirror<>::peer_remove(io_ctx, uuid); | |
652 | } | |
653 | ||
654 | int RBD::mirror_peer_list(IoCtx& io_ctx, std::vector<mirror_peer_t> *peers) { | |
655 | return librbd::api::Mirror<>::peer_list(io_ctx, peers); | |
656 | } | |
657 | ||
658 | int RBD::mirror_peer_set_client(IoCtx& io_ctx, const std::string &uuid, | |
659 | const std::string &client_name) { | |
660 | return librbd::api::Mirror<>::peer_set_client(io_ctx, uuid, client_name); | |
661 | } | |
662 | ||
663 | int RBD::mirror_peer_set_cluster(IoCtx& io_ctx, const std::string &uuid, | |
664 | const std::string &cluster_name) { | |
665 | return librbd::api::Mirror<>::peer_set_cluster(io_ctx, uuid, cluster_name); | |
666 | } | |
667 | ||
668 | int RBD::mirror_image_status_list(IoCtx& io_ctx, const std::string &start_id, | |
669 | size_t max, std::map<std::string, mirror_image_status_t> *images) { | |
670 | return librbd::api::Mirror<>::image_status_list(io_ctx, start_id, max, | |
671 | images); | |
672 | } | |
673 | ||
674 | int RBD::mirror_image_status_summary(IoCtx& io_ctx, | |
675 | std::map<mirror_image_status_state_t, int> *states) { | |
676 | return librbd::api::Mirror<>::image_status_summary(io_ctx, states); | |
677 | } | |
678 | ||
679 | int RBD::group_create(IoCtx& io_ctx, const char *group_name) | |
680 | { | |
681 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
682 | tracepoint(librbd, group_create_enter, io_ctx.get_pool_name().c_str(), | |
683 | io_ctx.get_id(), group_name); | |
684 | int r = librbd::api::Group<>::create(io_ctx, group_name); | |
685 | tracepoint(librbd, group_create_exit, r); | |
686 | return r; | |
687 | } | |
688 | ||
689 | int RBD::group_remove(IoCtx& io_ctx, const char *group_name) | |
690 | { | |
691 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
692 | tracepoint(librbd, group_remove_enter, io_ctx.get_pool_name().c_str(), | |
693 | io_ctx.get_id(), group_name); | |
694 | int r = librbd::api::Group<>::remove(io_ctx, group_name); | |
695 | tracepoint(librbd, group_remove_exit, r); | |
696 | return r; | |
697 | } | |
698 | ||
699 | int RBD::group_list(IoCtx& io_ctx, vector<string> *names) | |
700 | { | |
701 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
702 | tracepoint(librbd, group_list_enter, io_ctx.get_pool_name().c_str(), | |
703 | io_ctx.get_id()); | |
704 | ||
705 | int r = librbd::api::Group<>::list(io_ctx, names); | |
706 | if (r >= 0) { | |
707 | for (auto itr : *names) { | |
708 | tracepoint(librbd, group_list_entry, itr.c_str()); | |
709 | } | |
710 | } | |
711 | tracepoint(librbd, group_list_exit, r); | |
712 | return r; | |
713 | } | |
714 | ||
715 | int RBD::group_image_add(IoCtx& group_ioctx, const char *group_name, | |
716 | IoCtx& image_ioctx, const char *image_name) | |
717 | { | |
718 | TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); | |
719 | tracepoint(librbd, group_image_add_enter, group_ioctx.get_pool_name().c_str(), | |
720 | group_ioctx.get_id(), group_name, image_ioctx.get_pool_name().c_str(), | |
721 | image_ioctx.get_id(), image_name); | |
722 | int r = librbd::api::Group<>::image_add(group_ioctx, group_name, | |
723 | image_ioctx, image_name); | |
724 | tracepoint(librbd, group_image_add_exit, r); | |
725 | return r; | |
726 | } | |
727 | ||
728 | int RBD::group_image_remove(IoCtx& group_ioctx, const char *group_name, | |
729 | IoCtx& image_ioctx, const char *image_name) | |
730 | { | |
731 | TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); | |
732 | tracepoint(librbd, group_image_remove_enter, group_ioctx.get_pool_name().c_str(), | |
733 | group_ioctx.get_id(), group_name, image_ioctx.get_pool_name().c_str(), | |
734 | image_ioctx.get_id(), image_name); | |
735 | int r = librbd::api::Group<>::image_remove(group_ioctx, group_name, | |
736 | image_ioctx, image_name); | |
737 | tracepoint(librbd, group_image_remove_exit, r); | |
738 | return r; | |
739 | } | |
740 | ||
741 | int RBD::group_image_remove_by_id(IoCtx& group_ioctx, const char *group_name, | |
742 | IoCtx& image_ioctx, const char *image_id) | |
743 | { | |
744 | TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); | |
745 | tracepoint(librbd, group_image_remove_by_id_enter, | |
746 | group_ioctx.get_pool_name().c_str(), | |
747 | group_ioctx.get_id(), group_name, | |
748 | image_ioctx.get_pool_name().c_str(), | |
749 | image_ioctx.get_id(), image_id); | |
750 | int r = librbd::api::Group<>::image_remove_by_id(group_ioctx, group_name, | |
751 | image_ioctx, image_id); | |
752 | tracepoint(librbd, group_image_remove_by_id_exit, r); | |
753 | return r; | |
754 | } | |
755 | ||
756 | int RBD::group_image_list(IoCtx& group_ioctx, const char *group_name, | |
757 | std::vector<group_image_status_t> *images) | |
758 | { | |
759 | TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); | |
760 | tracepoint(librbd, group_image_list_enter, group_ioctx.get_pool_name().c_str(), | |
761 | group_ioctx.get_id(), group_name); | |
762 | int r = librbd::api::Group<>::image_list(group_ioctx, group_name, images); | |
763 | tracepoint(librbd, group_image_list_exit, r); | |
764 | return r; | |
765 | } | |
766 | ||
767 | ||
768 | RBD::AioCompletion::AioCompletion(void *cb_arg, callback_t complete_cb) | |
769 | { | |
770 | pc = reinterpret_cast<void*>(librbd::io::AioCompletion::create( | |
771 | cb_arg, complete_cb, this)); | |
772 | } | |
773 | ||
774 | bool RBD::AioCompletion::is_complete() | |
775 | { | |
776 | librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc; | |
777 | return c->is_complete(); | |
778 | } | |
779 | ||
780 | int RBD::AioCompletion::wait_for_complete() | |
781 | { | |
782 | librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc; | |
783 | return c->wait_for_complete(); | |
784 | } | |
785 | ||
786 | ssize_t RBD::AioCompletion::get_return_value() | |
787 | { | |
788 | librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc; | |
789 | return c->get_return_value(); | |
790 | } | |
791 | ||
792 | void *RBD::AioCompletion::get_arg() | |
793 | { | |
794 | librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc; | |
795 | return c->get_arg(); | |
796 | } | |
797 | ||
798 | void RBD::AioCompletion::release() | |
799 | { | |
800 | librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc; | |
801 | c->release(); | |
802 | delete this; | |
803 | } | |
804 | ||
805 | /* | |
806 | ImageOptions | |
807 | */ | |
808 | ||
809 | ImageOptions::ImageOptions() | |
810 | { | |
811 | librbd::image_options_create(&opts); | |
812 | } | |
813 | ||
814 | ImageOptions::ImageOptions(rbd_image_options_t opts_) | |
815 | { | |
816 | librbd::image_options_create_ref(&opts, opts_); | |
817 | } | |
818 | ||
819 | ImageOptions::ImageOptions(const ImageOptions &imgopts) | |
820 | { | |
821 | librbd::image_options_copy(&opts, imgopts); | |
822 | } | |
823 | ||
824 | ImageOptions::~ImageOptions() | |
825 | { | |
826 | librbd::image_options_destroy(opts); | |
827 | } | |
828 | ||
829 | int ImageOptions::set(int optname, const std::string& optval) | |
830 | { | |
831 | return librbd::image_options_set(opts, optname, optval); | |
832 | } | |
833 | ||
834 | int ImageOptions::set(int optname, uint64_t optval) | |
835 | { | |
836 | return librbd::image_options_set(opts, optname, optval); | |
837 | } | |
838 | ||
839 | int ImageOptions::get(int optname, std::string* optval) const | |
840 | { | |
841 | return librbd::image_options_get(opts, optname, optval); | |
842 | } | |
843 | ||
844 | int ImageOptions::get(int optname, uint64_t* optval) const | |
845 | { | |
846 | return librbd::image_options_get(opts, optname, optval); | |
847 | } | |
848 | ||
849 | int ImageOptions::is_set(int optname, bool* is_set) | |
850 | { | |
851 | return librbd::image_options_is_set(opts, optname, is_set); | |
852 | } | |
853 | ||
854 | int ImageOptions::unset(int optname) | |
855 | { | |
856 | return librbd::image_options_unset(opts, optname); | |
857 | } | |
858 | ||
859 | void ImageOptions::clear() | |
860 | { | |
861 | librbd::image_options_clear(opts); | |
862 | } | |
863 | ||
864 | bool ImageOptions::empty() const | |
865 | { | |
866 | return librbd::image_options_is_empty(opts); | |
867 | } | |
868 | ||
869 | /* | |
870 | Image | |
871 | */ | |
872 | ||
873 | Image::Image() : ctx(NULL) | |
874 | { | |
875 | } | |
876 | ||
877 | Image::~Image() | |
878 | { | |
879 | close(); | |
880 | } | |
881 | ||
882 | int Image::close() | |
883 | { | |
884 | int r = 0; | |
885 | if (ctx) { | |
886 | ImageCtx *ictx = (ImageCtx *)ctx; | |
887 | tracepoint(librbd, close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); | |
888 | ||
889 | r = ictx->state->close(); | |
890 | ctx = NULL; | |
891 | ||
892 | tracepoint(librbd, close_image_exit, r); | |
893 | } | |
894 | return r; | |
895 | } | |
896 | ||
897 | int Image::aio_close(RBD::AioCompletion *c) | |
898 | { | |
899 | if (!ctx) { | |
900 | return -EINVAL; | |
901 | } | |
902 | ||
903 | ImageCtx *ictx = (ImageCtx *)ctx; | |
904 | tracepoint(librbd, aio_close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), c->pc); | |
905 | ||
906 | ictx->state->close(new C_AioCompletion(ictx, librbd::io::AIO_TYPE_CLOSE, | |
907 | get_aio_completion(c))); | |
908 | ctx = NULL; | |
909 | ||
910 | tracepoint(librbd, aio_close_image_exit, 0); | |
911 | return 0; | |
912 | } | |
913 | ||
914 | int Image::resize(uint64_t size) | |
915 | { | |
916 | ImageCtx *ictx = (ImageCtx *)ctx; | |
917 | tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); | |
918 | librbd::NoOpProgressContext prog_ctx; | |
919 | int r = ictx->operations->resize(size, true, prog_ctx); | |
920 | tracepoint(librbd, resize_exit, r); | |
921 | return r; | |
922 | } | |
923 | ||
924 | int Image::resize2(uint64_t size, bool allow_shrink, librbd::ProgressContext& pctx) | |
925 | { | |
926 | ImageCtx *ictx = (ImageCtx *)ctx; | |
927 | tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); | |
928 | int r = ictx->operations->resize(size, allow_shrink, pctx); | |
929 | tracepoint(librbd, resize_exit, r); | |
930 | return r; | |
931 | } | |
932 | ||
933 | int Image::resize_with_progress(uint64_t size, librbd::ProgressContext& pctx) | |
934 | { | |
935 | ImageCtx *ictx = (ImageCtx *)ctx; | |
936 | tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); | |
937 | int r = ictx->operations->resize(size, true, pctx); | |
938 | tracepoint(librbd, resize_exit, r); | |
939 | return r; | |
940 | } | |
941 | ||
942 | int Image::stat(image_info_t& info, size_t infosize) | |
943 | { | |
944 | ImageCtx *ictx = (ImageCtx *)ctx; | |
945 | tracepoint(librbd, stat_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
946 | int r = librbd::info(ictx, info, infosize); | |
947 | tracepoint(librbd, stat_exit, r, &info); | |
948 | return r; | |
949 | } | |
950 | ||
951 | int Image::old_format(uint8_t *old) | |
952 | { | |
953 | ImageCtx *ictx = (ImageCtx *)ctx; | |
954 | tracepoint(librbd, get_old_format_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
955 | int r = librbd::get_old_format(ictx, old); | |
956 | tracepoint(librbd, get_old_format_exit, r, *old); | |
957 | return r; | |
958 | } | |
959 | ||
960 | int Image::size(uint64_t *size) | |
961 | { | |
962 | ImageCtx *ictx = (ImageCtx *)ctx; | |
963 | tracepoint(librbd, get_size_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
964 | int r = librbd::get_size(ictx, size); | |
965 | tracepoint(librbd, get_size_exit, r, *size); | |
966 | return r; | |
967 | } | |
968 | ||
969 | int Image::get_group(group_spec_t *group_spec) | |
970 | { | |
971 | ImageCtx *ictx = (ImageCtx *)ctx; | |
972 | tracepoint(librbd, image_get_group_enter, ictx->name.c_str()); | |
973 | int r = librbd::api::Group<>::image_get_group(ictx, group_spec); | |
974 | tracepoint(librbd, image_get_group_exit, r); | |
975 | return r; | |
976 | } | |
977 | ||
978 | int Image::features(uint64_t *features) | |
979 | { | |
980 | ImageCtx *ictx = (ImageCtx *)ctx; | |
981 | tracepoint(librbd, get_features_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
982 | int r = librbd::get_features(ictx, features); | |
983 | tracepoint(librbd, get_features_exit, r, *features); | |
984 | return r; | |
985 | } | |
986 | ||
987 | int Image::update_features(uint64_t features, bool enabled) | |
988 | { | |
989 | ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx); | |
990 | tracepoint(librbd, update_features_enter, ictx, features, enabled); | |
991 | int r = ictx->operations->update_features(features, enabled); | |
992 | tracepoint(librbd, update_features_exit, r); | |
993 | return r; | |
994 | } | |
995 | ||
996 | uint64_t Image::get_stripe_unit() const | |
997 | { | |
998 | ImageCtx *ictx = (ImageCtx *)ctx; | |
999 | tracepoint(librbd, get_stripe_unit_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
1000 | uint64_t stripe_unit = ictx->get_stripe_unit(); | |
1001 | tracepoint(librbd, get_stripe_unit_exit, 0, stripe_unit); | |
1002 | return stripe_unit; | |
1003 | } | |
1004 | ||
1005 | uint64_t Image::get_stripe_count() const | |
1006 | { | |
1007 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1008 | tracepoint(librbd, get_stripe_count_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
1009 | uint64_t stripe_count = ictx->get_stripe_count(); | |
1010 | tracepoint(librbd, get_stripe_count_exit, 0, stripe_count); | |
1011 | return stripe_count; | |
1012 | } | |
1013 | ||
1014 | int Image::overlap(uint64_t *overlap) | |
1015 | { | |
1016 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1017 | tracepoint(librbd, get_overlap_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
1018 | int r = librbd::get_overlap(ictx, overlap); | |
1019 | tracepoint(librbd, get_overlap_exit, r, *overlap); | |
1020 | return r; | |
1021 | } | |
1022 | ||
1023 | int Image::get_id(std::string *id) | |
1024 | { | |
1025 | ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx); | |
1026 | if (ictx->old_format) { | |
1027 | return -EINVAL; | |
1028 | } | |
1029 | *id = ictx->id; | |
1030 | return 0; | |
1031 | } | |
1032 | ||
1033 | std::string Image::get_block_name_prefix() | |
1034 | { | |
1035 | ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx); | |
1036 | return ictx->object_prefix; | |
1037 | } | |
1038 | ||
1039 | int64_t Image::get_data_pool_id() | |
1040 | { | |
1041 | ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx); | |
1042 | return ictx->data_ctx.get_id(); | |
1043 | } | |
1044 | ||
1045 | int Image::parent_info(string *parent_pool_name, string *parent_name, | |
1046 | string *parent_snap_name) | |
1047 | { | |
1048 | return parent_info2(parent_pool_name, parent_name, nullptr, | |
1049 | parent_snap_name); | |
1050 | } | |
1051 | ||
1052 | int Image::parent_info2(string *parent_pool_name, string *parent_name, | |
1053 | string *parent_id, string *parent_snap_name) | |
1054 | { | |
1055 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1056 | tracepoint(librbd, get_parent_info_enter, ictx, ictx->name.c_str(), | |
1057 | ictx->snap_name.c_str(), ictx->read_only); | |
1058 | int r = librbd::get_parent_info(ictx, parent_pool_name, parent_name, | |
1059 | parent_id, parent_snap_name); | |
1060 | tracepoint(librbd, get_parent_info_exit, r, | |
1061 | parent_pool_name ? parent_pool_name->c_str() : NULL, | |
1062 | parent_name ? parent_name->c_str() : NULL, | |
1063 | parent_id ? parent_id->c_str() : NULL, | |
1064 | parent_snap_name ? parent_snap_name->c_str() : NULL); | |
1065 | return r; | |
1066 | } | |
1067 | ||
1068 | int Image::get_flags(uint64_t *flags) | |
1069 | { | |
1070 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1071 | tracepoint(librbd, get_flags_enter, ictx); | |
1072 | int r = librbd::get_flags(ictx, flags); | |
1073 | tracepoint(librbd, get_flags_exit, ictx, r, *flags); | |
1074 | return r; | |
1075 | } | |
1076 | ||
1077 | int Image::set_image_notification(int fd, int type) | |
1078 | { | |
1079 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1080 | tracepoint(librbd, set_image_notification_enter, ictx, fd, type); | |
1081 | int r = librbd::set_image_notification(ictx, fd, type); | |
1082 | tracepoint(librbd, set_image_notification_exit, ictx, r); | |
1083 | return r; | |
1084 | } | |
1085 | ||
1086 | int Image::is_exclusive_lock_owner(bool *is_owner) | |
1087 | { | |
1088 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1089 | tracepoint(librbd, is_exclusive_lock_owner_enter, ictx); | |
1090 | int r = librbd::is_exclusive_lock_owner(ictx, is_owner); | |
1091 | tracepoint(librbd, is_exclusive_lock_owner_exit, ictx, r, *is_owner); | |
1092 | return r; | |
1093 | } | |
1094 | ||
1095 | int Image::lock_acquire(rbd_lock_mode_t lock_mode) | |
1096 | { | |
1097 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1098 | tracepoint(librbd, lock_acquire_enter, ictx, lock_mode); | |
1099 | int r = librbd::lock_acquire(ictx, lock_mode); | |
1100 | tracepoint(librbd, lock_acquire_exit, ictx, r); | |
1101 | return r; | |
1102 | } | |
1103 | ||
1104 | int Image::lock_release() | |
1105 | { | |
1106 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1107 | tracepoint(librbd, lock_release_enter, ictx); | |
1108 | int r = librbd::lock_release(ictx); | |
1109 | tracepoint(librbd, lock_release_exit, ictx, r); | |
1110 | return r; | |
1111 | } | |
1112 | ||
1113 | int Image::lock_get_owners(rbd_lock_mode_t *lock_mode, | |
1114 | std::list<std::string> *lock_owners) | |
1115 | { | |
1116 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1117 | tracepoint(librbd, lock_get_owners_enter, ictx); | |
1118 | int r = librbd::lock_get_owners(ictx, lock_mode, lock_owners); | |
1119 | tracepoint(librbd, lock_get_owners_exit, ictx, r); | |
1120 | return r; | |
1121 | } | |
1122 | ||
1123 | int Image::lock_break(rbd_lock_mode_t lock_mode, | |
1124 | const std::string &lock_owner) | |
1125 | { | |
1126 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1127 | tracepoint(librbd, lock_break_enter, ictx, lock_mode, lock_owner.c_str()); | |
1128 | int r = librbd::lock_break(ictx, lock_mode, lock_owner); | |
1129 | tracepoint(librbd, lock_break_exit, ictx, r); | |
1130 | return r; | |
1131 | } | |
1132 | ||
1133 | int Image::rebuild_object_map(ProgressContext &prog_ctx) | |
1134 | { | |
1135 | ImageCtx *ictx = reinterpret_cast<ImageCtx*>(ctx); | |
1136 | return ictx->operations->rebuild_object_map(prog_ctx); | |
1137 | } | |
1138 | ||
1139 | int Image::check_object_map(ProgressContext &prog_ctx) | |
1140 | { | |
1141 | ImageCtx *ictx = reinterpret_cast<ImageCtx*>(ctx); | |
1142 | return ictx->operations->check_object_map(prog_ctx); | |
1143 | } | |
1144 | ||
1145 | int Image::copy(IoCtx& dest_io_ctx, const char *destname) | |
1146 | { | |
1147 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1148 | tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname); | |
1149 | ImageOptions opts; | |
1150 | librbd::NoOpProgressContext prog_ctx; | |
1151 | int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0); | |
1152 | tracepoint(librbd, copy_exit, r); | |
1153 | return r; | |
1154 | } | |
1155 | ||
1156 | int Image::copy2(Image& dest) | |
1157 | { | |
1158 | ImageCtx *srcctx = (ImageCtx *)ctx; | |
1159 | ImageCtx *destctx = (ImageCtx *)dest.ctx; | |
1160 | tracepoint(librbd, copy2_enter, srcctx, srcctx->name.c_str(), srcctx->snap_name.c_str(), srcctx->read_only, destctx, destctx->name.c_str(), destctx->snap_name.c_str(), destctx->read_only); | |
1161 | librbd::NoOpProgressContext prog_ctx; | |
1162 | int r = librbd::copy(srcctx, destctx, prog_ctx, 0); | |
1163 | tracepoint(librbd, copy2_exit, r); | |
1164 | return r; | |
1165 | } | |
1166 | ||
1167 | int Image::copy3(IoCtx& dest_io_ctx, const char *destname, ImageOptions& opts) | |
1168 | { | |
1169 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1170 | tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts); | |
1171 | librbd::NoOpProgressContext prog_ctx; | |
1172 | int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0); | |
1173 | tracepoint(librbd, copy3_exit, r); | |
1174 | return r; | |
1175 | } | |
1176 | ||
1177 | int Image::copy4(IoCtx& dest_io_ctx, const char *destname, ImageOptions& opts, size_t sparse_size) | |
1178 | { | |
1179 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1180 | tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts, sparse_size); | |
1181 | librbd::NoOpProgressContext prog_ctx; | |
1182 | int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, sparse_size); | |
1183 | tracepoint(librbd, copy4_exit, r); | |
1184 | return r; | |
1185 | } | |
1186 | ||
1187 | int Image::copy_with_progress(IoCtx& dest_io_ctx, const char *destname, | |
1188 | librbd::ProgressContext &pctx) | |
1189 | { | |
1190 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1191 | tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname); | |
1192 | ImageOptions opts; | |
1193 | int r = librbd::copy(ictx, dest_io_ctx, destname, opts, pctx, 0); | |
1194 | tracepoint(librbd, copy_exit, r); | |
1195 | return r; | |
1196 | } | |
1197 | ||
1198 | int Image::copy_with_progress2(Image& dest, librbd::ProgressContext &pctx) | |
1199 | { | |
1200 | ImageCtx *srcctx = (ImageCtx *)ctx; | |
1201 | ImageCtx *destctx = (ImageCtx *)dest.ctx; | |
1202 | tracepoint(librbd, copy2_enter, srcctx, srcctx->name.c_str(), srcctx->snap_name.c_str(), srcctx->read_only, destctx, destctx->name.c_str(), destctx->snap_name.c_str(), destctx->read_only); | |
1203 | int r = librbd::copy(srcctx, destctx, pctx, 0); | |
1204 | tracepoint(librbd, copy2_exit, r); | |
1205 | return r; | |
1206 | } | |
1207 | ||
1208 | int Image::copy_with_progress3(IoCtx& dest_io_ctx, const char *destname, | |
1209 | ImageOptions& opts, | |
1210 | librbd::ProgressContext &pctx) | |
1211 | { | |
1212 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1213 | tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts); | |
1214 | int r = librbd::copy(ictx, dest_io_ctx, destname, opts, pctx, 0); | |
1215 | tracepoint(librbd, copy3_exit, r); | |
1216 | return r; | |
1217 | } | |
1218 | ||
1219 | int Image::copy_with_progress4(IoCtx& dest_io_ctx, const char *destname, | |
1220 | ImageOptions& opts, | |
1221 | librbd::ProgressContext &pctx, | |
1222 | size_t sparse_size) | |
1223 | { | |
1224 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1225 | tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts, sparse_size); | |
1226 | int r = librbd::copy(ictx, dest_io_ctx, destname, opts, pctx, sparse_size); | |
1227 | tracepoint(librbd, copy4_exit, r); | |
1228 | return r; | |
1229 | } | |
1230 | ||
1231 | int Image::flatten() | |
1232 | { | |
1233 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1234 | tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); | |
1235 | librbd::NoOpProgressContext prog_ctx; | |
1236 | int r = ictx->operations->flatten(prog_ctx); | |
1237 | tracepoint(librbd, flatten_exit, r); | |
1238 | return r; | |
1239 | } | |
1240 | ||
1241 | int Image::flatten_with_progress(librbd::ProgressContext& prog_ctx) | |
1242 | { | |
1243 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1244 | tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); | |
1245 | int r = ictx->operations->flatten(prog_ctx); | |
1246 | tracepoint(librbd, flatten_exit, r); | |
1247 | return r; | |
1248 | } | |
1249 | ||
1250 | int Image::list_children(set<pair<string, string> > *children) | |
1251 | { | |
1252 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1253 | tracepoint(librbd, list_children_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
1254 | int r = librbd::list_children(ictx, *children); | |
1255 | if (r >= 0) { | |
1256 | for (set<pair<string, string> >::const_iterator it = children->begin(); | |
1257 | it != children->end(); ++it) { | |
1258 | tracepoint(librbd, list_children_entry, it->first.c_str(), it->second.c_str()); | |
1259 | } | |
1260 | } | |
1261 | tracepoint(librbd, list_children_exit, r); | |
1262 | return r; | |
1263 | } | |
1264 | ||
1265 | int Image::list_lockers(std::list<librbd::locker_t> *lockers, | |
1266 | bool *exclusive, string *tag) | |
1267 | { | |
1268 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1269 | tracepoint(librbd, list_lockers_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
1270 | int r = librbd::list_lockers(ictx, lockers, exclusive, tag); | |
1271 | if (r >= 0) { | |
1272 | for (std::list<librbd::locker_t>::const_iterator it = lockers->begin(); | |
1273 | it != lockers->end(); ++it) { | |
1274 | tracepoint(librbd, list_lockers_entry, it->client.c_str(), it->cookie.c_str(), it->address.c_str()); | |
1275 | } | |
1276 | } | |
1277 | tracepoint(librbd, list_lockers_exit, r); | |
1278 | return r; | |
1279 | } | |
1280 | ||
1281 | int Image::lock_exclusive(const string& cookie) | |
1282 | { | |
1283 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1284 | tracepoint(librbd, lock_exclusive_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie.c_str()); | |
1285 | int r = librbd::lock(ictx, true, cookie, ""); | |
1286 | tracepoint(librbd, lock_exclusive_exit, r); | |
1287 | return r; | |
1288 | } | |
1289 | ||
1290 | int Image::lock_shared(const string& cookie, const std::string& tag) | |
1291 | { | |
1292 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1293 | tracepoint(librbd, lock_shared_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie.c_str(), tag.c_str()); | |
1294 | int r = librbd::lock(ictx, false, cookie, tag); | |
1295 | tracepoint(librbd, lock_shared_exit, r); | |
1296 | return r; | |
1297 | } | |
1298 | ||
1299 | int Image::unlock(const string& cookie) | |
1300 | { | |
1301 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1302 | tracepoint(librbd, unlock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie.c_str()); | |
1303 | int r = librbd::unlock(ictx, cookie); | |
1304 | tracepoint(librbd, unlock_exit, r); | |
1305 | return r; | |
1306 | } | |
1307 | ||
1308 | int Image::break_lock(const string& client, const string& cookie) | |
1309 | { | |
1310 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1311 | tracepoint(librbd, break_lock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, client.c_str(), cookie.c_str()); | |
1312 | int r = librbd::break_lock(ictx, client, cookie); | |
1313 | tracepoint(librbd, break_lock_exit, r); | |
1314 | return r; | |
1315 | } | |
1316 | ||
1317 | int Image::snap_create(const char *snap_name) | |
1318 | { | |
1319 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1320 | tracepoint(librbd, snap_create_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
1321 | int r = ictx->operations->snap_create(cls::rbd::UserSnapshotNamespace(), | |
1322 | snap_name); | |
1323 | tracepoint(librbd, snap_create_exit, r); | |
1324 | return r; | |
1325 | } | |
1326 | ||
1327 | int Image::snap_remove(const char *snap_name) | |
1328 | { | |
1329 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1330 | tracepoint(librbd, snap_remove_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
1331 | librbd::NoOpProgressContext prog_ctx; | |
1332 | int r = librbd::snap_remove(ictx, snap_name, 0, prog_ctx); | |
1333 | tracepoint(librbd, snap_remove_exit, r); | |
1334 | return r; | |
1335 | } | |
1336 | ||
1337 | int Image::snap_remove2(const char *snap_name, uint32_t flags, ProgressContext& pctx) | |
1338 | { | |
1339 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1340 | tracepoint(librbd, snap_remove2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name, flags); | |
1341 | int r = librbd::snap_remove(ictx, snap_name, flags, pctx); | |
1342 | tracepoint(librbd, snap_remove_exit, r); | |
1343 | return r; | |
1344 | } | |
1345 | ||
1346 | int Image::snap_rollback(const char *snap_name) | |
1347 | { | |
1348 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1349 | tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
1350 | librbd::NoOpProgressContext prog_ctx; | |
1351 | int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx); | |
1352 | tracepoint(librbd, snap_rollback_exit, r); | |
1353 | return r; | |
1354 | } | |
1355 | ||
1356 | int Image::snap_rename(const char *srcname, const char *dstname) | |
1357 | { | |
1358 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1359 | tracepoint(librbd, snap_rename_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, srcname, dstname); | |
1360 | int r = ictx->operations->snap_rename(srcname, dstname); | |
1361 | tracepoint(librbd, snap_rename_exit, r); | |
1362 | return r; | |
1363 | } | |
1364 | ||
1365 | int Image::snap_rollback_with_progress(const char *snap_name, | |
1366 | ProgressContext& prog_ctx) | |
1367 | { | |
1368 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1369 | tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
1370 | int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx); | |
1371 | tracepoint(librbd, snap_rollback_exit, r); | |
1372 | return r; | |
1373 | } | |
1374 | ||
1375 | int Image::snap_protect(const char *snap_name) | |
1376 | { | |
1377 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1378 | tracepoint(librbd, snap_protect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
1379 | int r = ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), snap_name); | |
1380 | tracepoint(librbd, snap_protect_exit, r); | |
1381 | return r; | |
1382 | } | |
1383 | ||
1384 | int Image::snap_unprotect(const char *snap_name) | |
1385 | { | |
1386 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1387 | tracepoint(librbd, snap_unprotect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
1388 | int r = ictx->operations->snap_unprotect(cls::rbd::UserSnapshotNamespace(), snap_name); | |
1389 | tracepoint(librbd, snap_unprotect_exit, r); | |
1390 | return r; | |
1391 | } | |
1392 | ||
1393 | int Image::snap_is_protected(const char *snap_name, bool *is_protected) | |
1394 | { | |
1395 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1396 | tracepoint(librbd, snap_is_protected_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
1397 | int r = librbd::snap_is_protected(ictx, snap_name, is_protected); | |
1398 | tracepoint(librbd, snap_is_protected_exit, r, *is_protected ? 1 : 0); | |
1399 | return r; | |
1400 | } | |
1401 | ||
1402 | int Image::snap_list(vector<librbd::snap_info_t>& snaps) | |
1403 | { | |
1404 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1405 | tracepoint(librbd, snap_list_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, &snaps); | |
1406 | int r = librbd::snap_list(ictx, snaps); | |
1407 | if (r >= 0) { | |
1408 | for (int i = 0, n = snaps.size(); i < n; i++) { | |
1409 | tracepoint(librbd, snap_list_entry, snaps[i].id, snaps[i].size, snaps[i].name.c_str()); | |
1410 | } | |
1411 | } | |
1412 | tracepoint(librbd, snap_list_exit, r, snaps.size()); | |
1413 | if (r >= 0) { | |
1414 | // A little ugly, but the C++ API doesn't need a Image::snap_list_end, | |
1415 | // and we want the tracepoints to mirror the C API | |
1416 | tracepoint(librbd, snap_list_end_enter, &snaps); | |
1417 | tracepoint(librbd, snap_list_end_exit); | |
1418 | } | |
1419 | return r; | |
1420 | } | |
1421 | ||
1422 | bool Image::snap_exists(const char *snap_name) | |
1423 | { | |
1424 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1425 | tracepoint(librbd, snap_exists_enter, ictx, ictx->name.c_str(), | |
1426 | ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
1427 | bool exists; | |
1428 | int r = librbd::snap_exists(ictx, cls::rbd::UserSnapshotNamespace(), snap_name, &exists); | |
1429 | tracepoint(librbd, snap_exists_exit, r, exists); | |
1430 | if (r < 0) { | |
1431 | // lie to caller since we don't know the real answer yet. | |
1432 | return false; | |
1433 | } | |
1434 | return exists; | |
1435 | } | |
1436 | ||
1437 | // A safer verion of snap_exists. | |
1438 | int Image::snap_exists2(const char *snap_name, bool *exists) | |
1439 | { | |
1440 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1441 | tracepoint(librbd, snap_exists_enter, ictx, ictx->name.c_str(), | |
1442 | ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
1443 | int r = librbd::snap_exists(ictx, cls::rbd::UserSnapshotNamespace(), snap_name, exists); | |
1444 | tracepoint(librbd, snap_exists_exit, r, *exists); | |
1445 | return r; | |
1446 | } | |
1447 | ||
1448 | int Image::snap_get_timestamp(uint64_t snap_id, struct timespec *timestamp) | |
1449 | { | |
1450 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1451 | tracepoint(librbd, snap_get_timestamp_enter, ictx, ictx->name.c_str()); | |
1452 | int r = librbd::snap_get_timestamp(ictx, snap_id, timestamp); | |
1453 | tracepoint(librbd, snap_get_timestamp_exit, r); | |
1454 | return r; | |
1455 | } | |
1456 | ||
1457 | int Image::snap_get_limit(uint64_t *limit) | |
1458 | { | |
1459 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1460 | tracepoint(librbd, snap_get_limit_enter, ictx, ictx->name.c_str()); | |
1461 | int r = librbd::snap_get_limit(ictx, limit); | |
1462 | tracepoint(librbd, snap_get_limit_exit, r, *limit); | |
1463 | return r; | |
1464 | } | |
1465 | ||
1466 | int Image::snap_set_limit(uint64_t limit) | |
1467 | { | |
1468 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1469 | ||
1470 | tracepoint(librbd, snap_set_limit_enter, ictx, ictx->name.c_str(), limit); | |
1471 | int r = ictx->operations->snap_set_limit(limit); | |
1472 | tracepoint(librbd, snap_set_limit_exit, r); | |
1473 | return r; | |
1474 | } | |
1475 | ||
1476 | int Image::snap_set(const char *snap_name) | |
1477 | { | |
1478 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1479 | tracepoint(librbd, snap_set_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
1480 | int r = librbd::snap_set(ictx, cls::rbd::UserSnapshotNamespace(), snap_name); | |
1481 | tracepoint(librbd, snap_set_exit, r); | |
1482 | return r; | |
1483 | } | |
1484 | ||
1485 | ssize_t Image::read(uint64_t ofs, size_t len, bufferlist& bl) | |
1486 | { | |
1487 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1488 | tracepoint(librbd, read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); | |
1489 | bufferptr ptr(len); | |
1490 | bl.push_back(std::move(ptr)); | |
1491 | int r = ictx->io_work_queue->read(ofs, len, io::ReadResult{&bl}, 0); | |
1492 | tracepoint(librbd, read_exit, r); | |
1493 | return r; | |
1494 | } | |
1495 | ||
1496 | ssize_t Image::read2(uint64_t ofs, size_t len, bufferlist& bl, int op_flags) | |
1497 | { | |
1498 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1499 | tracepoint(librbd, read2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), | |
1500 | ictx->read_only, ofs, len, op_flags); | |
1501 | bufferptr ptr(len); | |
1502 | bl.push_back(std::move(ptr)); | |
1503 | int r = ictx->io_work_queue->read(ofs, len, io::ReadResult{&bl}, op_flags); | |
1504 | tracepoint(librbd, read_exit, r); | |
1505 | return r; | |
1506 | } | |
1507 | ||
1508 | int64_t Image::read_iterate(uint64_t ofs, size_t len, | |
1509 | int (*cb)(uint64_t, size_t, const char *, void *), | |
1510 | void *arg) | |
1511 | { | |
1512 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1513 | tracepoint(librbd, read_iterate_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); | |
1514 | int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg); | |
1515 | tracepoint(librbd, read_iterate_exit, r); | |
1516 | return r; | |
1517 | } | |
1518 | ||
1519 | int Image::read_iterate2(uint64_t ofs, uint64_t len, | |
1520 | int (*cb)(uint64_t, size_t, const char *, void *), | |
1521 | void *arg) | |
1522 | { | |
1523 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1524 | tracepoint(librbd, read_iterate2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); | |
1525 | int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg); | |
1526 | if (r > 0) | |
1527 | r = 0; | |
1528 | tracepoint(librbd, read_iterate2_exit, r); | |
1529 | return (int)r; | |
1530 | } | |
1531 | ||
1532 | int Image::diff_iterate(const char *fromsnapname, | |
1533 | uint64_t ofs, uint64_t len, | |
1534 | int (*cb)(uint64_t, size_t, int, void *), | |
1535 | void *arg) | |
1536 | { | |
1537 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1538 | tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(), | |
1539 | ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len, | |
1540 | true, false); | |
1541 | int r = librbd::api::DiffIterate<>::diff_iterate(ictx, | |
1542 | cls::rbd::UserSnapshotNamespace(), | |
1543 | fromsnapname, ofs, | |
1544 | len, true, false, cb, arg); | |
1545 | tracepoint(librbd, diff_iterate_exit, r); | |
1546 | return r; | |
1547 | } | |
1548 | ||
1549 | int Image::diff_iterate2(const char *fromsnapname, uint64_t ofs, uint64_t len, | |
1550 | bool include_parent, bool whole_object, | |
1551 | int (*cb)(uint64_t, size_t, int, void *), void *arg) | |
1552 | { | |
1553 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1554 | tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(), | |
1555 | ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len, | |
1556 | include_parent, whole_object); | |
1557 | int r = librbd::api::DiffIterate<>::diff_iterate(ictx, | |
1558 | cls::rbd::UserSnapshotNamespace(), | |
1559 | fromsnapname, ofs, | |
1560 | len, include_parent, | |
1561 | whole_object, cb, arg); | |
1562 | tracepoint(librbd, diff_iterate_exit, r); | |
1563 | return r; | |
1564 | } | |
1565 | ||
1566 | ssize_t Image::write(uint64_t ofs, size_t len, bufferlist& bl) | |
1567 | { | |
1568 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1569 | tracepoint(librbd, write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len, bl.length() < len ? NULL : bl.c_str()); | |
1570 | if (bl.length() < len) { | |
1571 | tracepoint(librbd, write_exit, -EINVAL); | |
1572 | return -EINVAL; | |
1573 | } | |
1574 | int r = ictx->io_work_queue->write(ofs, len, bufferlist{bl}, 0); | |
1575 | tracepoint(librbd, write_exit, r); | |
1576 | return r; | |
1577 | } | |
1578 | ||
1579 | ssize_t Image::write2(uint64_t ofs, size_t len, bufferlist& bl, int op_flags) | |
1580 | { | |
1581 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1582 | tracepoint(librbd, write2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, | |
1583 | ofs, len, bl.length() < len ? NULL : bl.c_str(), op_flags); | |
1584 | if (bl.length() < len) { | |
1585 | tracepoint(librbd, write_exit, -EINVAL); | |
1586 | return -EINVAL; | |
1587 | } | |
1588 | int r = ictx->io_work_queue->write(ofs, len, bufferlist{bl}, op_flags); | |
1589 | tracepoint(librbd, write_exit, r); | |
1590 | return r; | |
1591 | } | |
1592 | ||
1593 | int Image::discard(uint64_t ofs, uint64_t len) | |
1594 | { | |
1595 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1596 | tracepoint(librbd, discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); | |
1597 | if (len > std::numeric_limits<int32_t>::max()) { | |
1598 | tracepoint(librbd, discard_exit, -EINVAL); | |
1599 | return -EINVAL; | |
1600 | } | |
1601 | int r = ictx->io_work_queue->discard(ofs, len, ictx->skip_partial_discard); | |
1602 | tracepoint(librbd, discard_exit, r); | |
1603 | return r; | |
1604 | } | |
1605 | ||
1606 | ssize_t Image::writesame(uint64_t ofs, size_t len, bufferlist& bl, int op_flags) | |
1607 | { | |
1608 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1609 | tracepoint(librbd, writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), | |
1610 | ictx->read_only, ofs, len, bl.length() <= 0 ? NULL : bl.c_str(), bl.length(), | |
1611 | op_flags); | |
1612 | if (bl.length() <= 0 || len % bl.length()) { | |
1613 | tracepoint(librbd, writesame_exit, -EINVAL); | |
1614 | return -EINVAL; | |
1615 | } | |
1616 | ||
1617 | if (mem_is_zero(bl.c_str(), bl.length())) { | |
1618 | int r = ictx->io_work_queue->discard(ofs, len, false); | |
1619 | tracepoint(librbd, writesame_exit, r); | |
1620 | return r; | |
1621 | } | |
1622 | ||
1623 | int r = ictx->io_work_queue->writesame(ofs, len, bufferlist{bl}, op_flags); | |
1624 | tracepoint(librbd, writesame_exit, r); | |
1625 | return r; | |
1626 | } | |
1627 | ||
1628 | int Image::aio_write(uint64_t off, size_t len, bufferlist& bl, | |
1629 | RBD::AioCompletion *c) | |
1630 | { | |
1631 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1632 | tracepoint(librbd, aio_write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, bl.length() < len ? NULL : bl.c_str(), c->pc); | |
1633 | if (bl.length() < len) { | |
1634 | tracepoint(librbd, aio_write_exit, -EINVAL); | |
1635 | return -EINVAL; | |
1636 | } | |
1637 | ictx->io_work_queue->aio_write(get_aio_completion(c), off, len, | |
1638 | bufferlist{bl}, 0); | |
1639 | tracepoint(librbd, aio_write_exit, 0); | |
1640 | return 0; | |
1641 | } | |
1642 | ||
1643 | int Image::aio_write2(uint64_t off, size_t len, bufferlist& bl, | |
1644 | RBD::AioCompletion *c, int op_flags) | |
1645 | { | |
1646 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1647 | tracepoint(librbd, aio_write2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), | |
1648 | ictx->read_only, off, len, bl.length() < len ? NULL : bl.c_str(), c->pc, op_flags); | |
1649 | if (bl.length() < len) { | |
1650 | tracepoint(librbd, aio_write_exit, -EINVAL); | |
1651 | return -EINVAL; | |
1652 | } | |
1653 | ictx->io_work_queue->aio_write(get_aio_completion(c), off, len, | |
1654 | bufferlist{bl}, op_flags); | |
1655 | tracepoint(librbd, aio_write_exit, 0); | |
1656 | return 0; | |
1657 | } | |
1658 | ||
1659 | int Image::aio_discard(uint64_t off, uint64_t len, RBD::AioCompletion *c) | |
1660 | { | |
1661 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1662 | tracepoint(librbd, aio_discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, c->pc); | |
1663 | ictx->io_work_queue->aio_discard(get_aio_completion(c), off, len, ictx->skip_partial_discard); | |
1664 | tracepoint(librbd, aio_discard_exit, 0); | |
1665 | return 0; | |
1666 | } | |
1667 | ||
1668 | int Image::aio_read(uint64_t off, size_t len, bufferlist& bl, | |
1669 | RBD::AioCompletion *c) | |
1670 | { | |
1671 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1672 | tracepoint(librbd, aio_read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, bl.c_str(), c->pc); | |
1673 | ldout(ictx->cct, 10) << "Image::aio_read() buf=" << (void *)bl.c_str() << "~" | |
1674 | << (void *)(bl.c_str() + len - 1) << dendl; | |
1675 | ictx->io_work_queue->aio_read(get_aio_completion(c), off, len, | |
1676 | io::ReadResult{&bl}, 0); | |
1677 | tracepoint(librbd, aio_read_exit, 0); | |
1678 | return 0; | |
1679 | } | |
1680 | ||
1681 | int Image::aio_read2(uint64_t off, size_t len, bufferlist& bl, | |
1682 | RBD::AioCompletion *c, int op_flags) | |
1683 | { | |
1684 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1685 | tracepoint(librbd, aio_read2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), | |
1686 | ictx->read_only, off, len, bl.c_str(), c->pc, op_flags); | |
1687 | ldout(ictx->cct, 10) << "Image::aio_read() buf=" << (void *)bl.c_str() << "~" | |
1688 | << (void *)(bl.c_str() + len - 1) << dendl; | |
1689 | ictx->io_work_queue->aio_read(get_aio_completion(c), off, len, | |
1690 | io::ReadResult{&bl}, op_flags); | |
1691 | tracepoint(librbd, aio_read_exit, 0); | |
1692 | return 0; | |
1693 | } | |
1694 | ||
1695 | int Image::flush() | |
1696 | { | |
1697 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1698 | tracepoint(librbd, flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
1699 | int r = librbd::flush(ictx); | |
1700 | tracepoint(librbd, flush_exit, r); | |
1701 | return r; | |
1702 | } | |
1703 | ||
1704 | int Image::aio_flush(RBD::AioCompletion *c) | |
1705 | { | |
1706 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1707 | tracepoint(librbd, aio_flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, c->pc); | |
1708 | ictx->io_work_queue->aio_flush(get_aio_completion(c)); | |
1709 | tracepoint(librbd, aio_flush_exit, 0); | |
1710 | return 0; | |
1711 | } | |
1712 | ||
1713 | int Image::aio_writesame(uint64_t off, size_t len, bufferlist& bl, | |
1714 | RBD::AioCompletion *c, int op_flags) | |
1715 | { | |
1716 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1717 | tracepoint(librbd, aio_writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), | |
1718 | ictx->read_only, off, len, bl.length() <= len ? NULL : bl.c_str(), bl.length(), | |
1719 | c->pc, op_flags); | |
1720 | if (bl.length() <= 0 || len % bl.length()) { | |
1721 | tracepoint(librbd, aio_writesame_exit, -EINVAL); | |
1722 | return -EINVAL; | |
1723 | } | |
1724 | ||
1725 | if (mem_is_zero(bl.c_str(), bl.length())) { | |
1726 | ictx->io_work_queue->aio_discard(get_aio_completion(c), off, len, false); | |
1727 | tracepoint(librbd, aio_writesame_exit, 0); | |
1728 | return 0; | |
1729 | } | |
1730 | ||
1731 | ictx->io_work_queue->aio_writesame(get_aio_completion(c), off, len, | |
1732 | bufferlist{bl}, op_flags); | |
1733 | tracepoint(librbd, aio_writesame_exit, 0); | |
1734 | return 0; | |
1735 | } | |
1736 | ||
1737 | ||
1738 | int Image::invalidate_cache() | |
1739 | { | |
1740 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1741 | tracepoint(librbd, invalidate_cache_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
1742 | int r = librbd::invalidate_cache(ictx); | |
1743 | tracepoint(librbd, invalidate_cache_exit, r); | |
1744 | return r; | |
1745 | } | |
1746 | ||
1747 | int Image::poll_io_events(RBD::AioCompletion **comps, int numcomp) | |
1748 | { | |
1749 | io::AioCompletion *cs[numcomp]; | |
1750 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1751 | tracepoint(librbd, poll_io_events_enter, ictx, numcomp); | |
1752 | int r = librbd::poll_io_events(ictx, cs, numcomp); | |
1753 | tracepoint(librbd, poll_io_events_exit, r); | |
1754 | if (r > 0) { | |
1755 | for (int i = 0; i < numcomp; ++i) | |
1756 | comps[i] = (RBD::AioCompletion *)cs[i]->rbd_comp; | |
1757 | } | |
1758 | return r; | |
1759 | } | |
1760 | ||
1761 | int Image::metadata_get(const std::string &key, std::string *value) | |
1762 | { | |
1763 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1764 | tracepoint(librbd, metadata_get_enter, ictx, key.c_str()); | |
1765 | int r = librbd::metadata_get(ictx, key, value); | |
1766 | if (r < 0) { | |
1767 | tracepoint(librbd, metadata_get_exit, r, key.c_str(), NULL); | |
1768 | } else { | |
1769 | tracepoint(librbd, metadata_get_exit, r, key.c_str(), value->c_str()); | |
1770 | } | |
1771 | return r; | |
1772 | } | |
1773 | ||
1774 | int Image::metadata_set(const std::string &key, const std::string &value) | |
1775 | { | |
1776 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1777 | tracepoint(librbd, metadata_set_enter, ictx, key.c_str(), value.c_str()); | |
1778 | int r = ictx->operations->metadata_set(key, value); | |
1779 | tracepoint(librbd, metadata_set_exit, r); | |
1780 | return r; | |
1781 | } | |
1782 | ||
1783 | int Image::metadata_remove(const std::string &key) | |
1784 | { | |
1785 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1786 | tracepoint(librbd, metadata_remove_enter, ictx, key.c_str()); | |
1787 | int r = ictx->operations->metadata_remove(key); | |
1788 | tracepoint(librbd, metadata_remove_exit, r); | |
1789 | return r; | |
1790 | } | |
1791 | ||
1792 | int Image::metadata_list(const std::string &start, uint64_t max, map<string, bufferlist> *pairs) | |
1793 | { | |
1794 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1795 | tracepoint(librbd, metadata_list_enter, ictx); | |
1796 | int r = librbd::metadata_list(ictx, start, max, pairs); | |
1797 | if (r >= 0) { | |
1798 | for (map<string, bufferlist>::iterator it = pairs->begin(); | |
1799 | it != pairs->end(); ++it) { | |
1800 | tracepoint(librbd, metadata_list_entry, it->first.c_str(), it->second.c_str()); | |
1801 | } | |
1802 | } | |
1803 | tracepoint(librbd, metadata_list_exit, r); | |
1804 | return r; | |
1805 | } | |
1806 | ||
1807 | int Image::mirror_image_enable() { | |
1808 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1809 | return librbd::api::Mirror<>::image_enable(ictx, false); | |
1810 | } | |
1811 | ||
1812 | int Image::mirror_image_disable(bool force) { | |
1813 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1814 | return librbd::api::Mirror<>::image_disable(ictx, force); | |
1815 | } | |
1816 | ||
1817 | int Image::mirror_image_promote(bool force) { | |
1818 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1819 | return librbd::api::Mirror<>::image_promote(ictx, force); | |
1820 | } | |
1821 | ||
1822 | int Image::mirror_image_demote() { | |
1823 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1824 | return librbd::api::Mirror<>::image_demote(ictx); | |
1825 | } | |
1826 | ||
1827 | int Image::mirror_image_resync() | |
1828 | { | |
1829 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1830 | return librbd::api::Mirror<>::image_resync(ictx); | |
1831 | } | |
1832 | ||
1833 | int Image::mirror_image_get_info(mirror_image_info_t *mirror_image_info, | |
1834 | size_t info_size) { | |
1835 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1836 | return librbd::api::Mirror<>::image_get_info(ictx, mirror_image_info, | |
1837 | info_size); | |
1838 | } | |
1839 | ||
1840 | int Image::mirror_image_get_status(mirror_image_status_t *mirror_image_status, | |
1841 | size_t status_size) { | |
1842 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1843 | return librbd::api::Mirror<>::image_get_status(ictx, mirror_image_status, | |
1844 | status_size); | |
1845 | } | |
1846 | ||
1847 | int Image::aio_mirror_image_promote(bool force, RBD::AioCompletion *c) { | |
1848 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1849 | librbd::api::Mirror<>::image_promote( | |
1850 | ictx, force, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, | |
1851 | get_aio_completion(c))); | |
1852 | return 0; | |
1853 | } | |
1854 | ||
1855 | int Image::aio_mirror_image_demote(RBD::AioCompletion *c) { | |
1856 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1857 | librbd::api::Mirror<>::image_demote( | |
1858 | ictx, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, | |
1859 | get_aio_completion(c))); | |
1860 | return 0; | |
1861 | } | |
1862 | ||
1863 | int Image::aio_mirror_image_get_info(mirror_image_info_t *mirror_image_info, | |
1864 | size_t info_size, | |
1865 | RBD::AioCompletion *c) { | |
1866 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1867 | librbd::api::Mirror<>::image_get_info( | |
1868 | ictx, mirror_image_info, info_size, | |
1869 | new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, | |
1870 | get_aio_completion(c))); | |
1871 | return 0; | |
1872 | } | |
1873 | ||
1874 | int Image::aio_mirror_image_get_status(mirror_image_status_t *status, | |
1875 | size_t status_size, | |
1876 | RBD::AioCompletion *c) { | |
1877 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1878 | librbd::api::Mirror<>::image_get_status( | |
1879 | ictx, status, status_size, | |
1880 | new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, | |
1881 | get_aio_completion(c))); | |
1882 | return 0; | |
1883 | } | |
1884 | ||
1885 | int Image::update_watch(UpdateWatchCtx *wctx, uint64_t *handle) { | |
1886 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1887 | tracepoint(librbd, update_watch_enter, ictx, wctx); | |
1888 | int r = ictx->state->register_update_watcher(wctx, handle); | |
1889 | tracepoint(librbd, update_watch_exit, r, *handle); | |
1890 | return r; | |
1891 | } | |
1892 | ||
1893 | int Image::update_unwatch(uint64_t handle) { | |
1894 | ImageCtx *ictx = (ImageCtx *)ctx; | |
1895 | tracepoint(librbd, update_unwatch_enter, ictx, handle); | |
1896 | int r = ictx->state->unregister_update_watcher(handle); | |
1897 | tracepoint(librbd, update_unwatch_exit, r); | |
1898 | return r; | |
1899 | } | |
1900 | ||
1901 | } // namespace librbd | |
1902 | ||
1903 | extern "C" void rbd_version(int *major, int *minor, int *extra) | |
1904 | { | |
1905 | if (major) | |
1906 | *major = LIBRBD_VER_MAJOR; | |
1907 | if (minor) | |
1908 | *minor = LIBRBD_VER_MINOR; | |
1909 | if (extra) | |
1910 | *extra = LIBRBD_VER_EXTRA; | |
1911 | } | |
1912 | ||
1913 | extern "C" void rbd_image_options_create(rbd_image_options_t* opts) | |
1914 | { | |
1915 | librbd::image_options_create(opts); | |
1916 | } | |
1917 | ||
1918 | extern "C" void rbd_image_options_destroy(rbd_image_options_t opts) | |
1919 | { | |
1920 | librbd::image_options_destroy(opts); | |
1921 | } | |
1922 | ||
1923 | extern "C" int rbd_image_options_set_string(rbd_image_options_t opts, int optname, | |
1924 | const char* optval) | |
1925 | { | |
1926 | return librbd::image_options_set(opts, optname, optval); | |
1927 | } | |
1928 | ||
1929 | extern "C" int rbd_image_options_set_uint64(rbd_image_options_t opts, int optname, | |
1930 | uint64_t optval) | |
1931 | { | |
1932 | return librbd::image_options_set(opts, optname, optval); | |
1933 | } | |
1934 | ||
1935 | extern "C" int rbd_image_options_get_string(rbd_image_options_t opts, int optname, | |
1936 | char* optval, size_t maxlen) | |
1937 | { | |
1938 | std::string optval_; | |
1939 | ||
1940 | int r = librbd::image_options_get(opts, optname, &optval_); | |
1941 | ||
1942 | if (r < 0) { | |
1943 | return r; | |
1944 | } | |
1945 | ||
1946 | if (optval_.size() >= maxlen) { | |
1947 | return -E2BIG; | |
1948 | } | |
1949 | ||
1950 | strncpy(optval, optval_.c_str(), maxlen); | |
1951 | ||
1952 | return 0; | |
1953 | } | |
1954 | ||
1955 | extern "C" int rbd_image_options_get_uint64(rbd_image_options_t opts, int optname, | |
1956 | uint64_t* optval) | |
1957 | { | |
1958 | return librbd::image_options_get(opts, optname, optval); | |
1959 | } | |
1960 | ||
1961 | extern "C" int rbd_image_options_is_set(rbd_image_options_t opts, int optname, | |
1962 | bool* is_set) | |
1963 | { | |
1964 | return librbd::image_options_is_set(opts, optname, is_set); | |
1965 | } | |
1966 | ||
1967 | extern "C" int rbd_image_options_unset(rbd_image_options_t opts, int optname) | |
1968 | { | |
1969 | return librbd::image_options_unset(opts, optname); | |
1970 | } | |
1971 | ||
1972 | extern "C" void rbd_image_options_clear(rbd_image_options_t opts) | |
1973 | { | |
1974 | librbd::image_options_clear(opts); | |
1975 | } | |
1976 | ||
1977 | extern "C" int rbd_image_options_is_empty(rbd_image_options_t opts) | |
1978 | { | |
1979 | return librbd::image_options_is_empty(opts); | |
1980 | } | |
1981 | ||
1982 | /* pool mirroring */ | |
1983 | extern "C" int rbd_mirror_mode_get(rados_ioctx_t p, | |
1984 | rbd_mirror_mode_t *mirror_mode) { | |
1985 | librados::IoCtx io_ctx; | |
1986 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
1987 | return librbd::api::Mirror<>::mode_get(io_ctx, mirror_mode); | |
1988 | } | |
1989 | ||
1990 | extern "C" int rbd_mirror_mode_set(rados_ioctx_t p, | |
1991 | rbd_mirror_mode_t mirror_mode) { | |
1992 | librados::IoCtx io_ctx; | |
1993 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
1994 | return librbd::api::Mirror<>::mode_set(io_ctx, mirror_mode); | |
1995 | } | |
1996 | ||
1997 | extern "C" int rbd_mirror_peer_add(rados_ioctx_t p, char *uuid, | |
1998 | size_t uuid_max_length, | |
1999 | const char *cluster_name, | |
2000 | const char *client_name) { | |
2001 | static const std::size_t UUID_LENGTH = 36; | |
2002 | ||
2003 | librados::IoCtx io_ctx; | |
2004 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2005 | ||
2006 | if (uuid_max_length < UUID_LENGTH + 1) { | |
2007 | return -E2BIG; | |
2008 | } | |
2009 | ||
2010 | std::string uuid_str; | |
2011 | int r = librbd::api::Mirror<>::peer_add(io_ctx, &uuid_str, cluster_name, | |
2012 | client_name); | |
2013 | if (r >= 0) { | |
2014 | strncpy(uuid, uuid_str.c_str(), uuid_max_length); | |
2015 | uuid[uuid_max_length - 1] = '\0'; | |
2016 | } | |
2017 | return r; | |
2018 | } | |
2019 | ||
2020 | extern "C" int rbd_mirror_peer_remove(rados_ioctx_t p, const char *uuid) { | |
2021 | librados::IoCtx io_ctx; | |
2022 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2023 | int r = librbd::api::Mirror<>::peer_remove(io_ctx, uuid); | |
2024 | return r; | |
2025 | } | |
2026 | ||
2027 | extern "C" int rbd_mirror_peer_list(rados_ioctx_t p, | |
2028 | rbd_mirror_peer_t *peers, int *max_peers) { | |
2029 | librados::IoCtx io_ctx; | |
2030 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2031 | ||
2032 | std::vector<librbd::mirror_peer_t> peer_vector; | |
2033 | int r = librbd::api::Mirror<>::peer_list(io_ctx, &peer_vector); | |
2034 | if (r < 0) { | |
2035 | return r; | |
2036 | } | |
2037 | ||
2038 | if (*max_peers < static_cast<int>(peer_vector.size())) { | |
2039 | *max_peers = static_cast<int>(peer_vector.size()); | |
2040 | return -ERANGE; | |
2041 | } | |
2042 | ||
2043 | for (int i = 0; i < static_cast<int>(peer_vector.size()); ++i) { | |
2044 | peers[i].uuid = strdup(peer_vector[i].uuid.c_str()); | |
2045 | peers[i].cluster_name = strdup(peer_vector[i].cluster_name.c_str()); | |
2046 | peers[i].client_name = strdup(peer_vector[i].client_name.c_str()); | |
2047 | } | |
2048 | *max_peers = static_cast<int>(peer_vector.size()); | |
2049 | return 0; | |
2050 | } | |
2051 | ||
2052 | extern "C" void rbd_mirror_peer_list_cleanup(rbd_mirror_peer_t *peers, | |
2053 | int max_peers) { | |
2054 | for (int i = 0; i < max_peers; ++i) { | |
2055 | free(peers[i].uuid); | |
2056 | free(peers[i].cluster_name); | |
2057 | free(peers[i].client_name); | |
2058 | } | |
2059 | } | |
2060 | ||
2061 | extern "C" int rbd_mirror_peer_set_client(rados_ioctx_t p, const char *uuid, | |
2062 | const char *client_name) { | |
2063 | librados::IoCtx io_ctx; | |
2064 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2065 | return librbd::api::Mirror<>::peer_set_client(io_ctx, uuid, client_name); | |
2066 | } | |
2067 | ||
2068 | extern "C" int rbd_mirror_peer_set_cluster(rados_ioctx_t p, const char *uuid, | |
2069 | const char *cluster_name) { | |
2070 | librados::IoCtx io_ctx; | |
2071 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2072 | return librbd::api::Mirror<>::peer_set_cluster(io_ctx, uuid, cluster_name); | |
2073 | } | |
2074 | ||
2075 | extern "C" int rbd_mirror_image_status_list(rados_ioctx_t p, | |
2076 | const char *start_id, size_t max, char **image_ids, | |
2077 | rbd_mirror_image_status_t *images, size_t *len) { | |
2078 | librados::IoCtx io_ctx; | |
2079 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2080 | std::map<std::string, librbd::mirror_image_status_t> cpp_images; | |
2081 | ||
2082 | int r = librbd::api::Mirror<>::image_status_list(io_ctx, start_id, max, | |
2083 | &cpp_images); | |
2084 | if (r < 0) { | |
2085 | return r; | |
2086 | } | |
2087 | ||
2088 | size_t i = 0; | |
2089 | for (auto &it : cpp_images) { | |
2090 | assert(i < max); | |
2091 | const std::string &image_id = it.first; | |
2092 | image_ids[i] = strdup(image_id.c_str()); | |
2093 | mirror_image_status_cpp_to_c(it.second, &images[i]); | |
2094 | i++; | |
2095 | } | |
2096 | *len = i; | |
2097 | return 0; | |
2098 | } | |
2099 | ||
2100 | extern "C" void rbd_mirror_image_status_list_cleanup(char **image_ids, | |
2101 | rbd_mirror_image_status_t *images, size_t len) { | |
2102 | for (size_t i = 0; i < len; i++) { | |
2103 | free(image_ids[i]); | |
2104 | free(images[i].name); | |
2105 | free(images[i].info.global_id); | |
2106 | free(images[i].description); | |
2107 | } | |
2108 | } | |
2109 | ||
2110 | extern "C" int rbd_mirror_image_status_summary(rados_ioctx_t p, | |
2111 | rbd_mirror_image_status_state_t *states, int *counts, size_t *maxlen) { | |
2112 | ||
2113 | librados::IoCtx io_ctx; | |
2114 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2115 | ||
2116 | std::map<librbd::mirror_image_status_state_t, int> states_; | |
2117 | int r = librbd::api::Mirror<>::image_status_summary(io_ctx, &states_); | |
2118 | if (r < 0) { | |
2119 | return r; | |
2120 | } | |
2121 | ||
2122 | size_t i = 0; | |
2123 | for (auto &it : states_) { | |
2124 | if (i == *maxlen) { | |
2125 | return -ERANGE; | |
2126 | } | |
2127 | states[i] = it.first; | |
2128 | counts[i] = it.second; | |
2129 | i++; | |
2130 | } | |
2131 | *maxlen = i; | |
2132 | return 0; | |
2133 | } | |
2134 | ||
2135 | /* images */ | |
2136 | extern "C" int rbd_list(rados_ioctx_t p, char *names, size_t *size) | |
2137 | { | |
2138 | librados::IoCtx io_ctx; | |
2139 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2140 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2141 | tracepoint(librbd, list_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id()); | |
2142 | vector<string> cpp_names; | |
2143 | int r = librbd::list(io_ctx, cpp_names); | |
2144 | if (r == -ENOENT) { | |
2145 | tracepoint(librbd, list_exit, 0, *size); | |
2146 | return 0; | |
2147 | } | |
2148 | ||
2149 | if (r < 0) { | |
2150 | tracepoint(librbd, list_exit, r, *size); | |
2151 | return r; | |
2152 | } | |
2153 | ||
2154 | size_t expected_size = 0; | |
2155 | ||
2156 | for (size_t i = 0; i < cpp_names.size(); i++) { | |
2157 | expected_size += cpp_names[i].size() + 1; | |
2158 | } | |
2159 | if (*size < expected_size) { | |
2160 | *size = expected_size; | |
2161 | tracepoint(librbd, list_exit, -ERANGE, *size); | |
2162 | return -ERANGE; | |
2163 | } | |
2164 | ||
2165 | if (!names) | |
2166 | return -EINVAL; | |
2167 | ||
2168 | for (int i = 0; i < (int)cpp_names.size(); i++) { | |
2169 | const char* name = cpp_names[i].c_str(); | |
2170 | tracepoint(librbd, list_entry, name); | |
2171 | strcpy(names, name); | |
2172 | names += strlen(names) + 1; | |
2173 | } | |
2174 | tracepoint(librbd, list_exit, (int)expected_size, *size); | |
2175 | return (int)expected_size; | |
2176 | } | |
2177 | ||
2178 | extern "C" int rbd_create(rados_ioctx_t p, const char *name, uint64_t size, int *order) | |
2179 | { | |
2180 | librados::IoCtx io_ctx; | |
2181 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2182 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2183 | tracepoint(librbd, create_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, *order); | |
2184 | int r = librbd::create(io_ctx, name, size, order); | |
2185 | tracepoint(librbd, create_exit, r, *order); | |
2186 | return r; | |
2187 | } | |
2188 | ||
2189 | extern "C" int rbd_create2(rados_ioctx_t p, const char *name, | |
2190 | uint64_t size, uint64_t features, | |
2191 | int *order) | |
2192 | { | |
2193 | librados::IoCtx io_ctx; | |
2194 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2195 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2196 | tracepoint(librbd, create2_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order); | |
2197 | int r = librbd::create(io_ctx, name, size, false, features, order, 0, 0); | |
2198 | tracepoint(librbd, create2_exit, r, *order); | |
2199 | return r; | |
2200 | } | |
2201 | ||
2202 | extern "C" int rbd_create3(rados_ioctx_t p, const char *name, | |
2203 | uint64_t size, uint64_t features, | |
2204 | int *order, | |
2205 | uint64_t stripe_unit, uint64_t stripe_count) | |
2206 | { | |
2207 | librados::IoCtx io_ctx; | |
2208 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2209 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2210 | tracepoint(librbd, create3_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order, stripe_unit, stripe_count); | |
2211 | int r = librbd::create(io_ctx, name, size, false, features, order, | |
2212 | stripe_unit, stripe_count); | |
2213 | tracepoint(librbd, create3_exit, r, *order); | |
2214 | return r; | |
2215 | } | |
2216 | ||
2217 | extern "C" int rbd_create4(rados_ioctx_t p, const char *name, | |
2218 | uint64_t size, rbd_image_options_t opts) | |
2219 | { | |
2220 | librados::IoCtx io_ctx; | |
2221 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2222 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2223 | tracepoint(librbd, create4_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, opts); | |
2224 | librbd::ImageOptions opts_(opts); | |
2225 | int r = librbd::create(io_ctx, name, "", size, opts_, "", "", false); | |
2226 | tracepoint(librbd, create4_exit, r); | |
2227 | return r; | |
2228 | } | |
2229 | ||
2230 | extern "C" int rbd_clone(rados_ioctx_t p_ioctx, const char *p_name, | |
2231 | const char *p_snap_name, rados_ioctx_t c_ioctx, | |
2232 | const char *c_name, uint64_t features, int *c_order) | |
2233 | { | |
2234 | librados::IoCtx p_ioc, c_ioc; | |
2235 | librados::IoCtx::from_rados_ioctx_t(p_ioctx, p_ioc); | |
2236 | librados::IoCtx::from_rados_ioctx_t(c_ioctx, c_ioc); | |
2237 | TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioc)); | |
2238 | tracepoint(librbd, clone_enter, p_ioc.get_pool_name().c_str(), p_ioc.get_id(), p_name, p_snap_name, c_ioc.get_pool_name().c_str(), c_ioc.get_id(), c_name, features); | |
2239 | int r = librbd::clone(p_ioc, p_name, p_snap_name, c_ioc, c_name, | |
2240 | features, c_order, 0, 0); | |
2241 | tracepoint(librbd, clone_exit, r, *c_order); | |
2242 | return r; | |
2243 | } | |
2244 | ||
2245 | extern "C" int rbd_clone2(rados_ioctx_t p_ioctx, const char *p_name, | |
2246 | const char *p_snap_name, rados_ioctx_t c_ioctx, | |
2247 | const char *c_name, uint64_t features, int *c_order, | |
2248 | uint64_t stripe_unit, int stripe_count) | |
2249 | { | |
2250 | librados::IoCtx p_ioc, c_ioc; | |
2251 | librados::IoCtx::from_rados_ioctx_t(p_ioctx, p_ioc); | |
2252 | librados::IoCtx::from_rados_ioctx_t(c_ioctx, c_ioc); | |
2253 | TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioc)); | |
2254 | tracepoint(librbd, clone2_enter, p_ioc.get_pool_name().c_str(), p_ioc.get_id(), p_name, p_snap_name, c_ioc.get_pool_name().c_str(), c_ioc.get_id(), c_name, features, stripe_unit, stripe_count); | |
2255 | int r = librbd::clone(p_ioc, p_name, p_snap_name, c_ioc, c_name, | |
2256 | features, c_order, stripe_unit, stripe_count); | |
2257 | tracepoint(librbd, clone2_exit, r, *c_order); | |
2258 | return r; | |
2259 | } | |
2260 | ||
2261 | extern "C" int rbd_clone3(rados_ioctx_t p_ioctx, const char *p_name, | |
2262 | const char *p_snap_name, rados_ioctx_t c_ioctx, | |
2263 | const char *c_name, rbd_image_options_t c_opts) | |
2264 | { | |
2265 | librados::IoCtx p_ioc, c_ioc; | |
2266 | librados::IoCtx::from_rados_ioctx_t(p_ioctx, p_ioc); | |
2267 | librados::IoCtx::from_rados_ioctx_t(c_ioctx, c_ioc); | |
2268 | TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioc)); | |
2269 | tracepoint(librbd, clone3_enter, p_ioc.get_pool_name().c_str(), p_ioc.get_id(), p_name, p_snap_name, c_ioc.get_pool_name().c_str(), c_ioc.get_id(), c_name, c_opts); | |
2270 | librbd::ImageOptions c_opts_(c_opts); | |
2271 | int r = librbd::clone(p_ioc, p_name, p_snap_name, c_ioc, c_name, c_opts_); | |
2272 | tracepoint(librbd, clone3_exit, r); | |
2273 | return r; | |
2274 | } | |
2275 | ||
2276 | extern "C" int rbd_remove(rados_ioctx_t p, const char *name) | |
2277 | { | |
2278 | librados::IoCtx io_ctx; | |
2279 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2280 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2281 | tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name); | |
2282 | librbd::NoOpProgressContext prog_ctx; | |
2283 | int r = librbd::remove(io_ctx, name, "", prog_ctx); | |
2284 | tracepoint(librbd, remove_exit, r); | |
2285 | return r; | |
2286 | } | |
2287 | ||
2288 | extern "C" int rbd_remove_with_progress(rados_ioctx_t p, const char *name, | |
2289 | librbd_progress_fn_t cb, void *cbdata) | |
2290 | { | |
2291 | librados::IoCtx io_ctx; | |
2292 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2293 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2294 | tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name); | |
2295 | librbd::CProgressContext prog_ctx(cb, cbdata); | |
2296 | int r = librbd::remove(io_ctx, name, "", prog_ctx); | |
2297 | tracepoint(librbd, remove_exit, r); | |
2298 | return r; | |
2299 | } | |
2300 | ||
2301 | extern "C" int rbd_trash_move(rados_ioctx_t p, const char *name, | |
2302 | uint64_t delay) { | |
2303 | librados::IoCtx io_ctx; | |
2304 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2305 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2306 | tracepoint(librbd, trash_move_enter, io_ctx.get_pool_name().c_str(), | |
2307 | io_ctx.get_id(), name); | |
2308 | int r = librbd::trash_move(io_ctx, RBD_TRASH_IMAGE_SOURCE_USER, name, delay); | |
2309 | tracepoint(librbd, trash_move_exit, r); | |
2310 | return r; | |
2311 | } | |
2312 | ||
2313 | extern "C" int rbd_trash_get(rados_ioctx_t io, const char *id, | |
2314 | rbd_trash_image_info_t *info) { | |
2315 | librados::IoCtx io_ctx; | |
2316 | librados::IoCtx::from_rados_ioctx_t(io, io_ctx); | |
2317 | ||
2318 | librbd::trash_image_info_t cpp_info; | |
2319 | int r = librbd::trash_get(io_ctx, id, &cpp_info); | |
2320 | if (r < 0) { | |
2321 | return r; | |
2322 | } | |
2323 | ||
2324 | trash_image_info_cpp_to_c(cpp_info, info); | |
2325 | return 0; | |
2326 | } | |
2327 | ||
2328 | extern "C" void rbd_trash_get_cleanup(rbd_trash_image_info_t *info) { | |
2329 | free(info->id); | |
2330 | free(info->name); | |
2331 | } | |
2332 | ||
2333 | extern "C" int rbd_trash_list(rados_ioctx_t p, rbd_trash_image_info_t *entries, | |
2334 | size_t *num_entries) { | |
2335 | librados::IoCtx io_ctx; | |
2336 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2337 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2338 | tracepoint(librbd, trash_list_enter, | |
2339 | io_ctx.get_pool_name().c_str(), io_ctx.get_id()); | |
2340 | ||
2341 | vector<librbd::trash_image_info_t> cpp_entries; | |
2342 | int r = librbd::trash_list(io_ctx, cpp_entries); | |
2343 | if (r < 0) { | |
2344 | tracepoint(librbd, trash_list_exit, r, *num_entries); | |
2345 | return r; | |
2346 | } | |
2347 | ||
2348 | if (*num_entries < cpp_entries.size()) { | |
2349 | *num_entries = cpp_entries.size(); | |
2350 | tracepoint(librbd, trash_list_exit, -ERANGE, *num_entries); | |
2351 | return -ERANGE; | |
2352 | } | |
2353 | ||
2354 | int i=0; | |
2355 | for (const auto &entry : cpp_entries) { | |
2356 | trash_image_info_cpp_to_c(entry, &entries[i++]); | |
2357 | } | |
2358 | *num_entries = cpp_entries.size(); | |
2359 | ||
2360 | return *num_entries; | |
2361 | } | |
2362 | ||
2363 | extern "C" void rbd_trash_list_cleanup(rbd_trash_image_info_t *entries, | |
2364 | size_t num_entries) { | |
2365 | for (size_t i=0; i < num_entries; i++) { | |
2366 | rbd_trash_get_cleanup(&entries[i]); | |
2367 | } | |
2368 | } | |
2369 | ||
2370 | extern "C" int rbd_trash_remove(rados_ioctx_t p, const char *image_id, | |
2371 | bool force) { | |
2372 | librados::IoCtx io_ctx; | |
2373 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2374 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2375 | tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(), | |
2376 | io_ctx.get_id(), image_id, force); | |
2377 | librbd::NoOpProgressContext prog_ctx; | |
2378 | int r = librbd::trash_remove(io_ctx, image_id, force, prog_ctx); | |
2379 | tracepoint(librbd, trash_remove_exit, r); | |
2380 | return r; | |
2381 | } | |
2382 | ||
2383 | extern "C" int rbd_trash_remove_with_progress(rados_ioctx_t p, | |
2384 | const char *image_id, | |
2385 | bool force, | |
2386 | librbd_progress_fn_t cb, | |
2387 | void *cbdata) { | |
2388 | librados::IoCtx io_ctx; | |
2389 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2390 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2391 | tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(), | |
2392 | io_ctx.get_id(), image_id, force); | |
2393 | librbd::CProgressContext prog_ctx(cb, cbdata); | |
2394 | int r = librbd::trash_remove(io_ctx, image_id, force, prog_ctx); | |
2395 | tracepoint(librbd, trash_remove_exit, r); | |
2396 | return r; | |
2397 | } | |
2398 | ||
2399 | extern "C" int rbd_trash_restore(rados_ioctx_t p, const char *id, | |
2400 | const char *name) { | |
2401 | librados::IoCtx io_ctx; | |
2402 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2403 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2404 | tracepoint(librbd, trash_undelete_enter, io_ctx.get_pool_name().c_str(), | |
2405 | io_ctx.get_id(), id, name); | |
2406 | int r = librbd::trash_restore(io_ctx, id, name); | |
2407 | tracepoint(librbd, trash_undelete_exit, r); | |
2408 | return r; | |
2409 | } | |
2410 | ||
2411 | extern "C" int rbd_copy(rbd_image_t image, rados_ioctx_t dest_p, | |
2412 | const char *destname) | |
2413 | { | |
2414 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2415 | librados::IoCtx dest_io_ctx; | |
2416 | librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); | |
2417 | tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname); | |
2418 | librbd::ImageOptions opts; | |
2419 | librbd::NoOpProgressContext prog_ctx; | |
2420 | int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0); | |
2421 | tracepoint(librbd, copy_exit, r); | |
2422 | return r; | |
2423 | } | |
2424 | ||
2425 | extern "C" int rbd_copy2(rbd_image_t srcp, rbd_image_t destp) | |
2426 | { | |
2427 | librbd::ImageCtx *src = (librbd::ImageCtx *)srcp; | |
2428 | librbd::ImageCtx *dest = (librbd::ImageCtx *)destp; | |
2429 | tracepoint(librbd, copy2_enter, src, src->name.c_str(), src->snap_name.c_str(), src->read_only, dest, dest->name.c_str(), dest->snap_name.c_str(), dest->read_only); | |
2430 | librbd::NoOpProgressContext prog_ctx; | |
2431 | int r = librbd::copy(src, dest, prog_ctx, 0); | |
2432 | tracepoint(librbd, copy2_exit, r); | |
2433 | return r; | |
2434 | } | |
2435 | ||
2436 | extern "C" int rbd_copy3(rbd_image_t image, rados_ioctx_t dest_p, | |
2437 | const char *destname, rbd_image_options_t c_opts) | |
2438 | { | |
2439 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2440 | librados::IoCtx dest_io_ctx; | |
2441 | librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); | |
2442 | tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, c_opts); | |
2443 | librbd::ImageOptions c_opts_(c_opts); | |
2444 | librbd::NoOpProgressContext prog_ctx; | |
2445 | int r = librbd::copy(ictx, dest_io_ctx, destname, c_opts_, prog_ctx, 0); | |
2446 | tracepoint(librbd, copy3_exit, r); | |
2447 | return r; | |
2448 | } | |
2449 | ||
2450 | extern "C" int rbd_copy4(rbd_image_t image, rados_ioctx_t dest_p, | |
2451 | const char *destname, rbd_image_options_t c_opts, size_t sparse_size) | |
2452 | { | |
2453 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2454 | librados::IoCtx dest_io_ctx; | |
2455 | librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); | |
2456 | tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, c_opts, sparse_size); | |
2457 | librbd::ImageOptions c_opts_(c_opts); | |
2458 | librbd::NoOpProgressContext prog_ctx; | |
2459 | int r = librbd::copy(ictx, dest_io_ctx, destname, c_opts_, prog_ctx, sparse_size); | |
2460 | tracepoint(librbd, copy4_exit, r); | |
2461 | return r; | |
2462 | } | |
2463 | ||
2464 | extern "C" int rbd_copy_with_progress(rbd_image_t image, rados_ioctx_t dest_p, | |
2465 | const char *destname, | |
2466 | librbd_progress_fn_t fn, void *data) | |
2467 | { | |
2468 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2469 | librados::IoCtx dest_io_ctx; | |
2470 | librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); | |
2471 | tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname); | |
2472 | librbd::ImageOptions opts; | |
2473 | librbd::CProgressContext prog_ctx(fn, data); | |
2474 | int ret = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0); | |
2475 | tracepoint(librbd, copy_exit, ret); | |
2476 | return ret; | |
2477 | } | |
2478 | ||
2479 | extern "C" int rbd_copy_with_progress2(rbd_image_t srcp, rbd_image_t destp, | |
2480 | librbd_progress_fn_t fn, void *data) | |
2481 | { | |
2482 | librbd::ImageCtx *src = (librbd::ImageCtx *)srcp; | |
2483 | librbd::ImageCtx *dest = (librbd::ImageCtx *)destp; | |
2484 | tracepoint(librbd, copy2_enter, src, src->name.c_str(), src->snap_name.c_str(), src->read_only, dest, dest->name.c_str(), dest->snap_name.c_str(), dest->read_only); | |
2485 | librbd::CProgressContext prog_ctx(fn, data); | |
2486 | int ret = librbd::copy(src, dest, prog_ctx, 0); | |
2487 | tracepoint(librbd, copy2_exit, ret); | |
2488 | return ret; | |
2489 | } | |
2490 | ||
2491 | extern "C" int rbd_copy_with_progress3(rbd_image_t image, rados_ioctx_t dest_p, | |
2492 | const char *destname, | |
2493 | rbd_image_options_t dest_opts, | |
2494 | librbd_progress_fn_t fn, void *data) | |
2495 | { | |
2496 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2497 | librados::IoCtx dest_io_ctx; | |
2498 | librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); | |
2499 | tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, dest_opts); | |
2500 | librbd::ImageOptions dest_opts_(dest_opts); | |
2501 | librbd::CProgressContext prog_ctx(fn, data); | |
2502 | int ret = librbd::copy(ictx, dest_io_ctx, destname, dest_opts_, prog_ctx, 0); | |
2503 | tracepoint(librbd, copy3_exit, ret); | |
2504 | return ret; | |
2505 | } | |
2506 | ||
2507 | extern "C" int rbd_copy_with_progress4(rbd_image_t image, rados_ioctx_t dest_p, | |
2508 | const char *destname, | |
2509 | rbd_image_options_t dest_opts, | |
2510 | librbd_progress_fn_t fn, void *data, size_t sparse_size) | |
2511 | { | |
2512 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2513 | librados::IoCtx dest_io_ctx; | |
2514 | librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); | |
2515 | tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, dest_opts, sparse_size); | |
2516 | librbd::ImageOptions dest_opts_(dest_opts); | |
2517 | librbd::CProgressContext prog_ctx(fn, data); | |
2518 | int ret = librbd::copy(ictx, dest_io_ctx, destname, dest_opts_, prog_ctx, sparse_size); | |
2519 | tracepoint(librbd, copy4_exit, ret); | |
2520 | return ret; | |
2521 | } | |
2522 | ||
2523 | ||
2524 | extern "C" int rbd_flatten(rbd_image_t image) | |
2525 | { | |
2526 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2527 | tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); | |
2528 | librbd::NoOpProgressContext prog_ctx; | |
2529 | int r = ictx->operations->flatten(prog_ctx); | |
2530 | tracepoint(librbd, flatten_exit, r); | |
2531 | return r; | |
2532 | } | |
2533 | ||
2534 | extern "C" int rbd_flatten_with_progress(rbd_image_t image, | |
2535 | librbd_progress_fn_t cb, void *cbdata) | |
2536 | { | |
2537 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2538 | tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); | |
2539 | librbd::CProgressContext prog_ctx(cb, cbdata); | |
2540 | int r = ictx->operations->flatten(prog_ctx); | |
2541 | tracepoint(librbd, flatten_exit, r); | |
2542 | return r; | |
2543 | } | |
2544 | ||
2545 | extern "C" int rbd_rename(rados_ioctx_t src_p, const char *srcname, | |
2546 | const char *destname) | |
2547 | { | |
2548 | librados::IoCtx src_io_ctx; | |
2549 | librados::IoCtx::from_rados_ioctx_t(src_p, src_io_ctx); | |
2550 | TracepointProvider::initialize<tracepoint_traits>(get_cct(src_io_ctx)); | |
2551 | tracepoint(librbd, rename_enter, src_io_ctx.get_pool_name().c_str(), src_io_ctx.get_id(), srcname, destname); | |
2552 | int r = librbd::rename(src_io_ctx, srcname, destname); | |
2553 | tracepoint(librbd, rename_exit, r); | |
2554 | return r; | |
2555 | } | |
2556 | ||
2557 | extern "C" int rbd_open(rados_ioctx_t p, const char *name, rbd_image_t *image, | |
2558 | const char *snap_name) | |
2559 | { | |
2560 | librados::IoCtx io_ctx; | |
2561 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2562 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2563 | librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx, | |
2564 | false); | |
2565 | tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2566 | ||
2567 | int r = ictx->state->open(false); | |
2568 | if (r >= 0) { | |
2569 | *image = (rbd_image_t)ictx; | |
2570 | } | |
2571 | tracepoint(librbd, open_image_exit, r); | |
2572 | return r; | |
2573 | } | |
2574 | ||
2575 | extern "C" int rbd_open_by_id(rados_ioctx_t p, const char *id, | |
2576 | rbd_image_t *image, const char *snap_name) | |
2577 | { | |
2578 | librados::IoCtx io_ctx; | |
2579 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2580 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2581 | librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx, | |
2582 | false); | |
2583 | tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), | |
2584 | ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2585 | ||
2586 | int r = ictx->state->open(false); | |
2587 | if (r < 0) { | |
2588 | delete ictx; | |
2589 | } else { | |
2590 | *image = (rbd_image_t)ictx; | |
2591 | } | |
2592 | tracepoint(librbd, open_image_exit, r); | |
2593 | return r; | |
2594 | } | |
2595 | ||
2596 | extern "C" int rbd_aio_open(rados_ioctx_t p, const char *name, | |
2597 | rbd_image_t *image, const char *snap_name, | |
2598 | rbd_completion_t c) | |
2599 | { | |
2600 | librados::IoCtx io_ctx; | |
2601 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2602 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2603 | librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx, | |
2604 | false); | |
2605 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
2606 | tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc); | |
2607 | ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(comp), image)); | |
2608 | tracepoint(librbd, aio_open_image_exit, 0); | |
2609 | return 0; | |
2610 | } | |
2611 | ||
2612 | extern "C" int rbd_aio_open_by_id(rados_ioctx_t p, const char *id, | |
2613 | rbd_image_t *image, const char *snap_name, | |
2614 | rbd_completion_t c) | |
2615 | { | |
2616 | librados::IoCtx io_ctx; | |
2617 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2618 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2619 | librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx, | |
2620 | false); | |
2621 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
2622 | tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), | |
2623 | ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, | |
2624 | comp->pc); | |
2625 | ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(comp), image)); | |
2626 | tracepoint(librbd, aio_open_image_exit, 0); | |
2627 | return 0; | |
2628 | } | |
2629 | ||
2630 | extern "C" int rbd_open_read_only(rados_ioctx_t p, const char *name, | |
2631 | rbd_image_t *image, const char *snap_name) | |
2632 | { | |
2633 | librados::IoCtx io_ctx; | |
2634 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2635 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2636 | librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx, | |
2637 | true); | |
2638 | tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2639 | ||
2640 | int r = ictx->state->open(false); | |
2641 | if (r >= 0) { | |
2642 | *image = (rbd_image_t)ictx; | |
2643 | } | |
2644 | tracepoint(librbd, open_image_exit, r); | |
2645 | return r; | |
2646 | } | |
2647 | ||
2648 | extern "C" int rbd_open_by_id_read_only(rados_ioctx_t p, const char *id, | |
2649 | rbd_image_t *image, const char *snap_name) | |
2650 | { | |
2651 | librados::IoCtx io_ctx; | |
2652 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2653 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2654 | librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx, | |
2655 | true); | |
2656 | tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), | |
2657 | ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2658 | ||
2659 | int r = ictx->state->open(false); | |
2660 | if (r < 0) { | |
2661 | delete ictx; | |
2662 | } else { | |
2663 | *image = (rbd_image_t)ictx; | |
2664 | } | |
2665 | tracepoint(librbd, open_image_exit, r); | |
2666 | return r; | |
2667 | } | |
2668 | ||
2669 | extern "C" int rbd_aio_open_read_only(rados_ioctx_t p, const char *name, | |
2670 | rbd_image_t *image, const char *snap_name, | |
2671 | rbd_completion_t c) | |
2672 | { | |
2673 | librados::IoCtx io_ctx; | |
2674 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2675 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2676 | librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx, | |
2677 | true); | |
2678 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
2679 | tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc); | |
2680 | ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(comp), | |
2681 | image)); | |
2682 | tracepoint(librbd, aio_open_image_exit, 0); | |
2683 | return 0; | |
2684 | } | |
2685 | ||
2686 | extern "C" int rbd_aio_open_by_id_read_only(rados_ioctx_t p, const char *id, | |
2687 | rbd_image_t *image, | |
2688 | const char *snap_name, | |
2689 | rbd_completion_t c) | |
2690 | { | |
2691 | librados::IoCtx io_ctx; | |
2692 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
2693 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
2694 | librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx, | |
2695 | true); | |
2696 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
2697 | tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), | |
2698 | ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc); | |
2699 | ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(comp), | |
2700 | image)); | |
2701 | tracepoint(librbd, aio_open_image_exit, 0); | |
2702 | return 0; | |
2703 | } | |
2704 | ||
2705 | extern "C" int rbd_close(rbd_image_t image) | |
2706 | { | |
2707 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2708 | tracepoint(librbd, close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); | |
2709 | ||
2710 | int r = ictx->state->close(); | |
2711 | ||
2712 | tracepoint(librbd, close_image_exit, r); | |
2713 | return r; | |
2714 | } | |
2715 | ||
2716 | extern "C" int rbd_aio_close(rbd_image_t image, rbd_completion_t c) | |
2717 | { | |
2718 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2719 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
2720 | tracepoint(librbd, aio_close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), comp->pc); | |
2721 | ictx->state->close(new C_AioCompletion(ictx, librbd::io::AIO_TYPE_CLOSE, | |
2722 | get_aio_completion(comp))); | |
2723 | tracepoint(librbd, aio_close_image_exit, 0); | |
2724 | return 0; | |
2725 | } | |
2726 | ||
2727 | extern "C" int rbd_resize(rbd_image_t image, uint64_t size) | |
2728 | { | |
2729 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2730 | tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); | |
2731 | librbd::NoOpProgressContext prog_ctx; | |
2732 | int r = ictx->operations->resize(size, true, prog_ctx); | |
2733 | tracepoint(librbd, resize_exit, r); | |
2734 | return r; | |
2735 | } | |
2736 | ||
2737 | extern "C" int rbd_resize2(rbd_image_t image, uint64_t size, bool allow_shrink, | |
2738 | librbd_progress_fn_t cb, void *cbdata) | |
2739 | { | |
2740 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2741 | tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); | |
2742 | librbd::CProgressContext prog_ctx(cb, cbdata); | |
2743 | int r = ictx->operations->resize(size, allow_shrink, prog_ctx); | |
2744 | tracepoint(librbd, resize_exit, r); | |
2745 | return r; | |
2746 | } | |
2747 | ||
2748 | extern "C" int rbd_resize_with_progress(rbd_image_t image, uint64_t size, | |
2749 | librbd_progress_fn_t cb, void *cbdata) | |
2750 | { | |
2751 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2752 | tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); | |
2753 | librbd::CProgressContext prog_ctx(cb, cbdata); | |
2754 | int r = ictx->operations->resize(size, true, prog_ctx); | |
2755 | tracepoint(librbd, resize_exit, r); | |
2756 | return r; | |
2757 | } | |
2758 | ||
2759 | extern "C" int rbd_stat(rbd_image_t image, rbd_image_info_t *info, | |
2760 | size_t infosize) | |
2761 | { | |
2762 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2763 | tracepoint(librbd, stat_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2764 | int r = librbd::info(ictx, *info, infosize); | |
2765 | tracepoint(librbd, stat_exit, r, info); | |
2766 | return r; | |
2767 | } | |
2768 | ||
2769 | extern "C" int rbd_get_old_format(rbd_image_t image, uint8_t *old) | |
2770 | { | |
2771 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2772 | tracepoint(librbd, get_old_format_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2773 | int r = librbd::get_old_format(ictx, old); | |
2774 | tracepoint(librbd, get_old_format_exit, r, *old); | |
2775 | return r; | |
2776 | } | |
2777 | ||
2778 | extern "C" int rbd_get_size(rbd_image_t image, uint64_t *size) | |
2779 | { | |
2780 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2781 | tracepoint(librbd, get_size_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2782 | int r = librbd::get_size(ictx, size); | |
2783 | tracepoint(librbd, get_size_exit, r, *size); | |
2784 | return r; | |
2785 | } | |
2786 | ||
2787 | extern "C" int rbd_get_features(rbd_image_t image, uint64_t *features) | |
2788 | { | |
2789 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2790 | tracepoint(librbd, get_features_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2791 | int r = librbd::get_features(ictx, features); | |
2792 | tracepoint(librbd, get_features_exit, r, *features); | |
2793 | return r; | |
2794 | } | |
2795 | ||
2796 | extern "C" int rbd_update_features(rbd_image_t image, uint64_t features, | |
2797 | uint8_t enabled) | |
2798 | { | |
2799 | librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image); | |
2800 | bool features_enabled = enabled != 0; | |
2801 | tracepoint(librbd, update_features_enter, ictx, features, features_enabled); | |
2802 | int r = ictx->operations->update_features(features, features_enabled); | |
2803 | tracepoint(librbd, update_features_exit, r); | |
2804 | return r; | |
2805 | } | |
2806 | ||
2807 | extern "C" int rbd_get_stripe_unit(rbd_image_t image, uint64_t *stripe_unit) | |
2808 | { | |
2809 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2810 | tracepoint(librbd, get_stripe_unit_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2811 | *stripe_unit = ictx->get_stripe_unit(); | |
2812 | tracepoint(librbd, get_stripe_unit_exit, 0, *stripe_unit); | |
2813 | return 0; | |
2814 | } | |
2815 | ||
2816 | extern "C" int rbd_get_stripe_count(rbd_image_t image, uint64_t *stripe_count) | |
2817 | { | |
2818 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2819 | tracepoint(librbd, get_stripe_count_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2820 | *stripe_count = ictx->get_stripe_count(); | |
2821 | tracepoint(librbd, get_stripe_count_exit, 0, *stripe_count); | |
2822 | return 0; | |
2823 | } | |
2824 | ||
2825 | extern "C" int rbd_get_overlap(rbd_image_t image, uint64_t *overlap) | |
2826 | { | |
2827 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2828 | tracepoint(librbd, get_overlap_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
2829 | int r = librbd::get_overlap(ictx, overlap); | |
2830 | tracepoint(librbd, get_overlap_exit, r, *overlap); | |
2831 | return r; | |
2832 | } | |
2833 | ||
2834 | extern "C" int rbd_get_id(rbd_image_t image, char *id, size_t id_len) | |
2835 | { | |
2836 | librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image); | |
2837 | if (ictx->old_format) { | |
2838 | return -EINVAL; | |
2839 | } | |
2840 | if (ictx->id.size() >= id_len) { | |
2841 | return -ERANGE; | |
2842 | } | |
2843 | ||
2844 | strncpy(id, ictx->id.c_str(), id_len - 1); | |
2845 | id[id_len - 1] = '\0'; | |
2846 | return 0; | |
2847 | } | |
2848 | ||
2849 | extern "C" int rbd_get_block_name_prefix(rbd_image_t image, char *prefix, | |
2850 | size_t prefix_len) | |
2851 | { | |
2852 | librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image); | |
2853 | if (ictx->object_prefix.size() >= prefix_len) { | |
2854 | return -ERANGE; | |
2855 | } | |
2856 | ||
2857 | strncpy(prefix, ictx->object_prefix.c_str(), prefix_len - 1); | |
2858 | prefix[prefix_len - 1] = '\0'; | |
2859 | return 0; | |
2860 | } | |
2861 | ||
2862 | extern "C" int64_t rbd_get_data_pool_id(rbd_image_t image) | |
2863 | { | |
2864 | librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image); | |
2865 | return ictx->data_ctx.get_id(); | |
2866 | } | |
2867 | ||
2868 | extern "C" int rbd_get_parent_info(rbd_image_t image, | |
2869 | char *parent_pool_name, size_t ppool_namelen, | |
2870 | char *parent_name, size_t pnamelen, | |
2871 | char *parent_snap_name, size_t psnap_namelen) | |
2872 | { | |
2873 | return rbd_get_parent_info2(image, parent_pool_name, ppool_namelen, | |
2874 | parent_name, pnamelen, nullptr, 0, | |
2875 | parent_snap_name, psnap_namelen); | |
2876 | } | |
2877 | ||
2878 | extern "C" int rbd_get_parent_info2(rbd_image_t image, | |
2879 | char *parent_pool_name, | |
2880 | size_t ppool_namelen, | |
2881 | char *parent_name, size_t pnamelen, | |
2882 | char *parent_id, size_t pidlen, | |
2883 | char *parent_snap_name, | |
2884 | size_t psnap_namelen) | |
2885 | { | |
2886 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2887 | tracepoint(librbd, get_parent_info_enter, ictx, ictx->name.c_str(), | |
2888 | ictx->snap_name.c_str(), ictx->read_only); | |
2889 | string p_pool_name, p_name, p_id, p_snap_name; | |
2890 | ||
2891 | int r = librbd::get_parent_info(ictx, &p_pool_name, &p_name, &p_id, | |
2892 | &p_snap_name); | |
2893 | if (r < 0) { | |
2894 | tracepoint(librbd, get_parent_info_exit, r, NULL, NULL, NULL, NULL); | |
2895 | return r; | |
2896 | } | |
2897 | ||
2898 | if (parent_pool_name) { | |
2899 | if (p_pool_name.length() + 1 > ppool_namelen) { | |
2900 | tracepoint(librbd, get_parent_info_exit, -ERANGE, NULL, NULL, NULL, NULL); | |
2901 | return -ERANGE; | |
2902 | } | |
2903 | ||
2904 | strcpy(parent_pool_name, p_pool_name.c_str()); | |
2905 | } | |
2906 | if (parent_name) { | |
2907 | if (p_name.length() + 1 > pnamelen) { | |
2908 | tracepoint(librbd, get_parent_info_exit, -ERANGE, NULL, NULL, NULL, NULL); | |
2909 | return -ERANGE; | |
2910 | } | |
2911 | ||
2912 | strcpy(parent_name, p_name.c_str()); | |
2913 | } | |
2914 | if (parent_id) { | |
2915 | if (p_id.length() + 1 > pidlen) { | |
2916 | tracepoint(librbd, get_parent_info_exit, -ERANGE, NULL, NULL, NULL, NULL); | |
2917 | return -ERANGE; | |
2918 | } | |
2919 | ||
2920 | strcpy(parent_id, p_id.c_str()); | |
2921 | } | |
2922 | if (parent_snap_name) { | |
2923 | if (p_snap_name.length() + 1 > psnap_namelen) { | |
2924 | tracepoint(librbd, get_parent_info_exit, -ERANGE, NULL, NULL, NULL, NULL); | |
2925 | return -ERANGE; | |
2926 | } | |
2927 | ||
2928 | strcpy(parent_snap_name, p_snap_name.c_str()); | |
2929 | } | |
2930 | ||
2931 | tracepoint(librbd, get_parent_info_exit, 0, parent_pool_name, parent_name, | |
2932 | parent_id, parent_snap_name); | |
2933 | return 0; | |
2934 | } | |
2935 | ||
2936 | extern "C" int rbd_get_flags(rbd_image_t image, uint64_t *flags) | |
2937 | { | |
2938 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2939 | tracepoint(librbd, get_flags_enter, ictx); | |
2940 | int r = librbd::get_flags(ictx, flags); | |
2941 | tracepoint(librbd, get_flags_exit, ictx, r, *flags); | |
2942 | return r; | |
2943 | } | |
2944 | ||
2945 | extern "C" int rbd_set_image_notification(rbd_image_t image, int fd, int type) | |
2946 | { | |
2947 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2948 | tracepoint(librbd, set_image_notification_enter, ictx, fd, type); | |
2949 | int r = librbd::set_image_notification(ictx, fd, type); | |
2950 | tracepoint(librbd, set_image_notification_exit, ictx, r); | |
2951 | return r; | |
2952 | } | |
2953 | ||
2954 | extern "C" int rbd_is_exclusive_lock_owner(rbd_image_t image, int *is_owner) | |
2955 | { | |
2956 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2957 | tracepoint(librbd, is_exclusive_lock_owner_enter, ictx); | |
2958 | bool owner; | |
2959 | int r = librbd::is_exclusive_lock_owner(ictx, &owner); | |
2960 | *is_owner = owner ? 1 : 0; | |
2961 | tracepoint(librbd, is_exclusive_lock_owner_exit, ictx, r, *is_owner); | |
2962 | return r; | |
2963 | } | |
2964 | ||
2965 | extern "C" int rbd_lock_acquire(rbd_image_t image, rbd_lock_mode_t lock_mode) | |
2966 | { | |
2967 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2968 | tracepoint(librbd, lock_acquire_enter, ictx, lock_mode); | |
2969 | int r = librbd::lock_acquire(ictx, lock_mode); | |
2970 | tracepoint(librbd, lock_acquire_exit, ictx, r); | |
2971 | return r; | |
2972 | } | |
2973 | ||
2974 | extern "C" int rbd_lock_release(rbd_image_t image) | |
2975 | { | |
2976 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
2977 | tracepoint(librbd, lock_release_enter, ictx); | |
2978 | int r = librbd::lock_release(ictx); | |
2979 | tracepoint(librbd, lock_release_exit, ictx, r); | |
2980 | return r; | |
2981 | } | |
2982 | ||
2983 | extern "C" int rbd_lock_get_owners(rbd_image_t image, | |
2984 | rbd_lock_mode_t *lock_mode, | |
2985 | char **lock_owners, | |
2986 | size_t *max_lock_owners) | |
2987 | { | |
2988 | librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx*>(image); | |
2989 | tracepoint(librbd, lock_get_owners_enter, ictx); | |
2990 | std::list<std::string> lock_owner_list; | |
2991 | int r = librbd::lock_get_owners(ictx, lock_mode, &lock_owner_list); | |
2992 | if (r >= 0) { | |
2993 | if (*max_lock_owners >= lock_owner_list.size()) { | |
2994 | *max_lock_owners = 0; | |
2995 | for (auto &lock_owner : lock_owner_list) { | |
2996 | lock_owners[(*max_lock_owners)++] = strdup(lock_owner.c_str()); | |
2997 | } | |
2998 | } else { | |
2999 | *max_lock_owners = lock_owner_list.size(); | |
3000 | r = -ERANGE; | |
3001 | } | |
3002 | } | |
3003 | tracepoint(librbd, lock_get_owners_exit, ictx, r); | |
3004 | return r; | |
3005 | } | |
3006 | ||
3007 | extern "C" void rbd_lock_get_owners_cleanup(char **lock_owners, | |
3008 | size_t lock_owner_count) | |
3009 | { | |
3010 | for (size_t i = 0; i < lock_owner_count; ++i) { | |
3011 | free(lock_owners[i]); | |
3012 | } | |
3013 | } | |
3014 | ||
3015 | extern "C" int rbd_lock_break(rbd_image_t image, rbd_lock_mode_t lock_mode, | |
3016 | const char *lock_owner) | |
3017 | { | |
3018 | librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx*>(image); | |
3019 | tracepoint(librbd, lock_break_enter, ictx, lock_mode, lock_owner); | |
3020 | int r = librbd::lock_break(ictx, lock_mode, lock_owner); | |
3021 | tracepoint(librbd, lock_break_exit, ictx, r); | |
3022 | return r; | |
3023 | } | |
3024 | ||
3025 | extern "C" int rbd_rebuild_object_map(rbd_image_t image, | |
3026 | librbd_progress_fn_t cb, void *cbdata) | |
3027 | { | |
3028 | librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx*>(image); | |
3029 | librbd::CProgressContext prog_ctx(cb, cbdata); | |
3030 | return ictx->operations->rebuild_object_map(prog_ctx); | |
3031 | } | |
3032 | ||
3033 | /* snapshots */ | |
3034 | extern "C" int rbd_snap_create(rbd_image_t image, const char *snap_name) | |
3035 | { | |
3036 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3037 | tracepoint(librbd, snap_create_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
3038 | int r = ictx->operations->snap_create(cls::rbd::UserSnapshotNamespace(), | |
3039 | snap_name); | |
3040 | tracepoint(librbd, snap_create_exit, r); | |
3041 | return r; | |
3042 | } | |
3043 | ||
3044 | extern "C" int rbd_snap_rename(rbd_image_t image, const char *srcname, const char *dstname) | |
3045 | { | |
3046 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3047 | tracepoint(librbd, snap_rename_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, srcname, dstname); | |
3048 | int r = ictx->operations->snap_rename(srcname, dstname); | |
3049 | tracepoint(librbd, snap_rename_exit, r); | |
3050 | return r; | |
3051 | } | |
3052 | ||
3053 | extern "C" int rbd_snap_remove(rbd_image_t image, const char *snap_name) | |
3054 | { | |
3055 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3056 | tracepoint(librbd, snap_remove_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
3057 | librbd::NoOpProgressContext prog_ctx; | |
3058 | int r = librbd::snap_remove(ictx, snap_name, 0, prog_ctx); | |
3059 | tracepoint(librbd, snap_remove_exit, r); | |
3060 | return r; | |
3061 | } | |
3062 | ||
3063 | extern "C" int rbd_snap_remove2(rbd_image_t image, const char *snap_name, uint32_t flags, | |
3064 | librbd_progress_fn_t cb, void *cbdata) | |
3065 | { | |
3066 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3067 | tracepoint(librbd, snap_remove2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name, flags); | |
3068 | librbd::CProgressContext prog_ctx(cb, cbdata); | |
3069 | int r = librbd::snap_remove(ictx, snap_name, flags, prog_ctx); | |
3070 | tracepoint(librbd, snap_remove_exit, r); | |
3071 | return r; | |
3072 | } | |
3073 | ||
3074 | extern "C" int rbd_snap_rollback(rbd_image_t image, const char *snap_name) | |
3075 | { | |
3076 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3077 | tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
3078 | librbd::NoOpProgressContext prog_ctx; | |
3079 | int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx); | |
3080 | tracepoint(librbd, snap_rollback_exit, r); | |
3081 | return r; | |
3082 | } | |
3083 | ||
3084 | extern "C" int rbd_snap_rollback_with_progress(rbd_image_t image, | |
3085 | const char *snap_name, | |
3086 | librbd_progress_fn_t cb, | |
3087 | void *cbdata) | |
3088 | { | |
3089 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3090 | tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
3091 | librbd::CProgressContext prog_ctx(cb, cbdata); | |
3092 | int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx); | |
3093 | tracepoint(librbd, snap_rollback_exit, r); | |
3094 | return r; | |
3095 | } | |
3096 | ||
3097 | extern "C" int rbd_snap_list(rbd_image_t image, rbd_snap_info_t *snaps, | |
3098 | int *max_snaps) | |
3099 | { | |
3100 | vector<librbd::snap_info_t> cpp_snaps; | |
3101 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3102 | tracepoint(librbd, snap_list_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snaps); | |
3103 | ||
3104 | if (!max_snaps) { | |
3105 | tracepoint(librbd, snap_list_exit, -EINVAL, 0); | |
3106 | return -EINVAL; | |
3107 | } | |
3108 | ||
3109 | int r = librbd::snap_list(ictx, cpp_snaps); | |
3110 | if (r == -ENOENT) { | |
3111 | tracepoint(librbd, snap_list_exit, 0, *max_snaps); | |
3112 | return 0; | |
3113 | } | |
3114 | if (r < 0) { | |
3115 | tracepoint(librbd, snap_list_exit, r, *max_snaps); | |
3116 | return r; | |
3117 | } | |
3118 | if (*max_snaps < (int)cpp_snaps.size() + 1) { | |
3119 | *max_snaps = (int)cpp_snaps.size() + 1; | |
3120 | tracepoint(librbd, snap_list_exit, -ERANGE, *max_snaps); | |
3121 | return -ERANGE; | |
3122 | } | |
3123 | ||
3124 | int i; | |
3125 | ||
3126 | for (i = 0; i < (int)cpp_snaps.size(); i++) { | |
3127 | snaps[i].id = cpp_snaps[i].id; | |
3128 | snaps[i].size = cpp_snaps[i].size; | |
3129 | snaps[i].name = strdup(cpp_snaps[i].name.c_str()); | |
3130 | if (!snaps[i].name) { | |
3131 | for (int j = 0; j < i; j++) | |
3132 | free((void *)snaps[j].name); | |
3133 | tracepoint(librbd, snap_list_exit, -ENOMEM, *max_snaps); | |
3134 | return -ENOMEM; | |
3135 | } | |
3136 | tracepoint(librbd, snap_list_entry, snaps[i].id, snaps[i].size, snaps[i].name); | |
3137 | } | |
3138 | snaps[i].id = 0; | |
3139 | snaps[i].size = 0; | |
3140 | snaps[i].name = NULL; | |
3141 | ||
3142 | r = (int)cpp_snaps.size(); | |
3143 | tracepoint(librbd, snap_list_exit, r, *max_snaps); | |
3144 | return r; | |
3145 | } | |
3146 | ||
3147 | extern "C" void rbd_snap_list_end(rbd_snap_info_t *snaps) | |
3148 | { | |
3149 | tracepoint(librbd, snap_list_end_enter, snaps); | |
3150 | while (snaps->name) { | |
3151 | free((void *)snaps->name); | |
3152 | snaps++; | |
3153 | } | |
3154 | tracepoint(librbd, snap_list_end_exit); | |
3155 | } | |
3156 | ||
3157 | extern "C" int rbd_snap_protect(rbd_image_t image, const char *snap_name) | |
3158 | { | |
3159 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3160 | tracepoint(librbd, snap_protect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
3161 | int r = ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), snap_name); | |
3162 | tracepoint(librbd, snap_protect_exit, r); | |
3163 | return r; | |
3164 | } | |
3165 | ||
3166 | extern "C" int rbd_snap_unprotect(rbd_image_t image, const char *snap_name) | |
3167 | { | |
3168 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3169 | tracepoint(librbd, snap_unprotect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
3170 | int r = ictx->operations->snap_unprotect(cls::rbd::UserSnapshotNamespace(), snap_name); | |
3171 | tracepoint(librbd, snap_unprotect_exit, r); | |
3172 | return r; | |
3173 | } | |
3174 | ||
3175 | extern "C" int rbd_snap_is_protected(rbd_image_t image, const char *snap_name, | |
3176 | int *is_protected) | |
3177 | { | |
3178 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3179 | tracepoint(librbd, snap_is_protected_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
3180 | bool protected_snap; | |
3181 | int r = librbd::snap_is_protected(ictx, snap_name, &protected_snap); | |
3182 | if (r < 0) { | |
3183 | tracepoint(librbd, snap_is_protected_exit, r, *is_protected ? 1 : 0); | |
3184 | return r; | |
3185 | } | |
3186 | *is_protected = protected_snap ? 1 : 0; | |
3187 | tracepoint(librbd, snap_is_protected_exit, 0, *is_protected ? 1 : 0); | |
3188 | return 0; | |
3189 | } | |
3190 | ||
3191 | extern "C" int rbd_snap_get_limit(rbd_image_t image, uint64_t *limit) | |
3192 | { | |
3193 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3194 | tracepoint(librbd, snap_get_limit_enter, ictx, ictx->name.c_str()); | |
3195 | int r = librbd::snap_get_limit(ictx, limit); | |
3196 | tracepoint(librbd, snap_get_limit_exit, r, *limit); | |
3197 | return r; | |
3198 | } | |
3199 | ||
3200 | extern "C" int rbd_snap_get_timestamp(rbd_image_t image, uint64_t snap_id, struct timespec *timestamp) | |
3201 | { | |
3202 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3203 | tracepoint(librbd, snap_get_timestamp_enter, ictx, ictx->name.c_str()); | |
3204 | int r = librbd::snap_get_timestamp(ictx, snap_id, timestamp); | |
3205 | tracepoint(librbd, snap_get_timestamp_exit, r); | |
3206 | return r; | |
3207 | } | |
3208 | ||
3209 | extern "C" int rbd_snap_set_limit(rbd_image_t image, uint64_t limit) | |
3210 | { | |
3211 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3212 | tracepoint(librbd, snap_set_limit_enter, ictx, ictx->name.c_str(), limit); | |
3213 | int r = librbd::snap_set_limit(ictx, limit); | |
3214 | tracepoint(librbd, snap_set_limit_exit, r); | |
3215 | return r; | |
3216 | } | |
3217 | ||
3218 | extern "C" int rbd_snap_set(rbd_image_t image, const char *snap_name) | |
3219 | { | |
3220 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3221 | tracepoint(librbd, snap_set_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); | |
3222 | int r = librbd::snap_set(ictx, cls::rbd::UserSnapshotNamespace(), snap_name); | |
3223 | tracepoint(librbd, snap_set_exit, r); | |
3224 | return r; | |
3225 | } | |
3226 | ||
3227 | extern "C" ssize_t rbd_list_children(rbd_image_t image, char *pools, | |
3228 | size_t *pools_len, char *images, | |
3229 | size_t *images_len) | |
3230 | { | |
3231 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3232 | tracepoint(librbd, list_children_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
3233 | set<pair<string, string> > image_set; | |
3234 | ||
3235 | int r = librbd::list_children(ictx, image_set); | |
3236 | if (r < 0) { | |
3237 | tracepoint(librbd, list_children_exit, r); | |
3238 | return r; | |
3239 | } | |
3240 | ||
3241 | size_t pools_total = 0; | |
3242 | size_t images_total = 0; | |
3243 | for (set<pair<string, string> >::const_iterator it = image_set.begin(); | |
3244 | it != image_set.end(); ++it) { | |
3245 | pools_total += it->first.length() + 1; | |
3246 | images_total += it->second.length() + 1; | |
3247 | } | |
3248 | ||
3249 | bool too_short = false; | |
3250 | if (pools_total > *pools_len) | |
3251 | too_short = true; | |
3252 | if (images_total > *images_len) | |
3253 | too_short = true; | |
3254 | *pools_len = pools_total; | |
3255 | *images_len = images_total; | |
3256 | if (too_short) { | |
3257 | tracepoint(librbd, list_children_exit, -ERANGE); | |
3258 | return -ERANGE; | |
3259 | } | |
3260 | ||
3261 | char *pools_p = pools; | |
3262 | char *images_p = images; | |
3263 | for (set<pair<string, string> >::const_iterator it = image_set.begin(); | |
3264 | it != image_set.end(); ++it) { | |
3265 | const char* pool = it->first.c_str(); | |
3266 | strcpy(pools_p, pool); | |
3267 | pools_p += it->first.length() + 1; | |
3268 | const char* image = it->second.c_str(); | |
3269 | strcpy(images_p, image); | |
3270 | images_p += it->second.length() + 1; | |
3271 | tracepoint(librbd, list_children_entry, pool, image); | |
3272 | } | |
3273 | ||
3274 | ssize_t ret = image_set.size(); | |
3275 | tracepoint(librbd, list_children_exit, ret); | |
3276 | return ret; | |
3277 | } | |
3278 | ||
3279 | extern "C" ssize_t rbd_list_lockers(rbd_image_t image, int *exclusive, | |
3280 | char *tag, size_t *tag_len, | |
3281 | char *clients, size_t *clients_len, | |
3282 | char *cookies, size_t *cookies_len, | |
3283 | char *addrs, size_t *addrs_len) | |
3284 | { | |
3285 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3286 | tracepoint(librbd, list_lockers_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
3287 | std::list<librbd::locker_t> lockers; | |
3288 | bool exclusive_bool; | |
3289 | string tag_str; | |
3290 | ||
3291 | int r = list_lockers(ictx, &lockers, &exclusive_bool, &tag_str); | |
3292 | if (r < 0) { | |
3293 | tracepoint(librbd, list_lockers_exit, r); | |
3294 | return r; | |
3295 | } | |
3296 | ||
3297 | ldout(ictx->cct, 20) << "list_lockers r = " << r << " lockers.size() = " << lockers.size() << dendl; | |
3298 | ||
3299 | *exclusive = (int)exclusive_bool; | |
3300 | size_t clients_total = 0; | |
3301 | size_t cookies_total = 0; | |
3302 | size_t addrs_total = 0; | |
3303 | for (list<librbd::locker_t>::const_iterator it = lockers.begin(); | |
3304 | it != lockers.end(); ++it) { | |
3305 | clients_total += it->client.length() + 1; | |
3306 | cookies_total += it->cookie.length() + 1; | |
3307 | addrs_total += it->address.length() + 1; | |
3308 | } | |
3309 | ||
3310 | bool too_short = ((clients_total > *clients_len) || | |
3311 | (cookies_total > *cookies_len) || | |
3312 | (addrs_total > *addrs_len) || | |
3313 | (tag_str.length() + 1 > *tag_len)); | |
3314 | *clients_len = clients_total; | |
3315 | *cookies_len = cookies_total; | |
3316 | *addrs_len = addrs_total; | |
3317 | *tag_len = tag_str.length() + 1; | |
3318 | if (too_short) { | |
3319 | tracepoint(librbd, list_lockers_exit, -ERANGE); | |
3320 | return -ERANGE; | |
3321 | } | |
3322 | ||
3323 | strcpy(tag, tag_str.c_str()); | |
3324 | char *clients_p = clients; | |
3325 | char *cookies_p = cookies; | |
3326 | char *addrs_p = addrs; | |
3327 | for (list<librbd::locker_t>::const_iterator it = lockers.begin(); | |
3328 | it != lockers.end(); ++it) { | |
3329 | const char* client = it->client.c_str(); | |
3330 | strcpy(clients_p, client); | |
3331 | clients_p += it->client.length() + 1; | |
3332 | const char* cookie = it->cookie.c_str(); | |
3333 | strcpy(cookies_p, cookie); | |
3334 | cookies_p += it->cookie.length() + 1; | |
3335 | const char* address = it->address.c_str(); | |
3336 | strcpy(addrs_p, address); | |
3337 | addrs_p += it->address.length() + 1; | |
3338 | tracepoint(librbd, list_lockers_entry, client, cookie, address); | |
3339 | } | |
3340 | ||
3341 | ssize_t ret = lockers.size(); | |
3342 | tracepoint(librbd, list_lockers_exit, ret); | |
3343 | return ret; | |
3344 | } | |
3345 | ||
3346 | extern "C" int rbd_lock_exclusive(rbd_image_t image, const char *cookie) | |
3347 | { | |
3348 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3349 | tracepoint(librbd, lock_exclusive_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie); | |
3350 | int r = librbd::lock(ictx, true, cookie ? cookie : "", ""); | |
3351 | tracepoint(librbd, lock_exclusive_exit, r); | |
3352 | return r; | |
3353 | } | |
3354 | ||
3355 | extern "C" int rbd_lock_shared(rbd_image_t image, const char *cookie, | |
3356 | const char *tag) | |
3357 | { | |
3358 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3359 | tracepoint(librbd, lock_shared_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie, tag); | |
3360 | int r = librbd::lock(ictx, false, cookie ? cookie : "", tag ? tag : ""); | |
3361 | tracepoint(librbd, lock_shared_exit, r); | |
3362 | return r; | |
3363 | } | |
3364 | ||
3365 | extern "C" int rbd_unlock(rbd_image_t image, const char *cookie) | |
3366 | { | |
3367 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3368 | tracepoint(librbd, unlock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie); | |
3369 | int r = librbd::unlock(ictx, cookie ? cookie : ""); | |
3370 | tracepoint(librbd, unlock_exit, r); | |
3371 | return r; | |
3372 | } | |
3373 | ||
3374 | extern "C" int rbd_break_lock(rbd_image_t image, const char *client, | |
3375 | const char *cookie) | |
3376 | { | |
3377 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3378 | tracepoint(librbd, break_lock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, client, cookie); | |
3379 | int r = librbd::break_lock(ictx, client, cookie ? cookie : ""); | |
3380 | tracepoint(librbd, break_lock_exit, r); | |
3381 | return r; | |
3382 | } | |
3383 | ||
3384 | /* I/O */ | |
3385 | extern "C" ssize_t rbd_read(rbd_image_t image, uint64_t ofs, size_t len, | |
3386 | char *buf) | |
3387 | { | |
3388 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3389 | tracepoint(librbd, read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); | |
3390 | int r = ictx->io_work_queue->read(ofs, len, librbd::io::ReadResult{buf, len}, | |
3391 | 0); | |
3392 | tracepoint(librbd, read_exit, r); | |
3393 | return r; | |
3394 | } | |
3395 | ||
3396 | extern "C" ssize_t rbd_read2(rbd_image_t image, uint64_t ofs, size_t len, | |
3397 | char *buf, int op_flags) | |
3398 | { | |
3399 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3400 | tracepoint(librbd, read2_enter, ictx, ictx->name.c_str(), | |
3401 | ictx->snap_name.c_str(), ictx->read_only, ofs, len, op_flags); | |
3402 | int r = ictx->io_work_queue->read(ofs, len, librbd::io::ReadResult{buf, len}, | |
3403 | op_flags); | |
3404 | tracepoint(librbd, read_exit, r); | |
3405 | return r; | |
3406 | } | |
3407 | ||
3408 | ||
3409 | extern "C" int64_t rbd_read_iterate(rbd_image_t image, uint64_t ofs, size_t len, | |
3410 | int (*cb)(uint64_t, size_t, const char *, void *), | |
3411 | void *arg) | |
3412 | { | |
3413 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3414 | tracepoint(librbd, read_iterate_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); | |
3415 | int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg); | |
3416 | tracepoint(librbd, read_iterate_exit, r); | |
3417 | return r; | |
3418 | } | |
3419 | ||
3420 | extern "C" int rbd_read_iterate2(rbd_image_t image, uint64_t ofs, uint64_t len, | |
3421 | int (*cb)(uint64_t, size_t, const char *, void *), | |
3422 | void *arg) | |
3423 | { | |
3424 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3425 | tracepoint(librbd, read_iterate2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); | |
3426 | int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg); | |
3427 | if (r > 0) | |
3428 | r = 0; | |
3429 | tracepoint(librbd, read_iterate2_exit, r); | |
3430 | return (int)r; | |
3431 | } | |
3432 | ||
3433 | extern "C" int rbd_diff_iterate(rbd_image_t image, | |
3434 | const char *fromsnapname, | |
3435 | uint64_t ofs, uint64_t len, | |
3436 | int (*cb)(uint64_t, size_t, int, void *), | |
3437 | void *arg) | |
3438 | { | |
3439 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3440 | tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(), | |
3441 | ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len, | |
3442 | true, false); | |
3443 | int r = librbd::api::DiffIterate<>::diff_iterate(ictx, | |
3444 | cls::rbd::UserSnapshotNamespace(), | |
3445 | fromsnapname, ofs, len, | |
3446 | true, false, cb, arg); | |
3447 | tracepoint(librbd, diff_iterate_exit, r); | |
3448 | return r; | |
3449 | } | |
3450 | ||
3451 | extern "C" int rbd_diff_iterate2(rbd_image_t image, const char *fromsnapname, | |
3452 | uint64_t ofs, uint64_t len, | |
3453 | uint8_t include_parent, uint8_t whole_object, | |
3454 | int (*cb)(uint64_t, size_t, int, void *), | |
3455 | void *arg) | |
3456 | { | |
3457 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3458 | tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(), | |
3459 | ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len, | |
3460 | include_parent != 0, whole_object != 0); | |
3461 | int r = librbd::api::DiffIterate<>::diff_iterate(ictx, | |
3462 | cls::rbd::UserSnapshotNamespace(), | |
3463 | fromsnapname, ofs, len, | |
3464 | include_parent, whole_object, | |
3465 | cb, arg); | |
3466 | tracepoint(librbd, diff_iterate_exit, r); | |
3467 | return r; | |
3468 | } | |
3469 | ||
3470 | extern "C" ssize_t rbd_write(rbd_image_t image, uint64_t ofs, size_t len, | |
3471 | const char *buf) | |
3472 | { | |
3473 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3474 | tracepoint(librbd, write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len, buf); | |
3475 | ||
3476 | bufferlist bl; | |
3477 | bl.push_back(create_write_raw(ictx, buf, len)); | |
3478 | int r = ictx->io_work_queue->write(ofs, len, std::move(bl), 0); | |
3479 | tracepoint(librbd, write_exit, r); | |
3480 | return r; | |
3481 | } | |
3482 | ||
3483 | extern "C" ssize_t rbd_write2(rbd_image_t image, uint64_t ofs, size_t len, | |
3484 | const char *buf, int op_flags) | |
3485 | { | |
3486 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3487 | tracepoint(librbd, write2_enter, ictx, ictx->name.c_str(), | |
3488 | ictx->snap_name.c_str(), ictx->read_only, ofs, len, buf, op_flags); | |
3489 | ||
3490 | bufferlist bl; | |
3491 | bl.push_back(create_write_raw(ictx, buf, len)); | |
3492 | int r = ictx->io_work_queue->write(ofs, len, std::move(bl), op_flags); | |
3493 | tracepoint(librbd, write_exit, r); | |
3494 | return r; | |
3495 | } | |
3496 | ||
3497 | ||
3498 | extern "C" int rbd_discard(rbd_image_t image, uint64_t ofs, uint64_t len) | |
3499 | { | |
3500 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3501 | tracepoint(librbd, discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); | |
3502 | int r = ictx->io_work_queue->discard(ofs, len, ictx->skip_partial_discard); | |
3503 | tracepoint(librbd, discard_exit, r); | |
3504 | return r; | |
3505 | } | |
3506 | ||
3507 | extern "C" ssize_t rbd_writesame(rbd_image_t image, uint64_t ofs, size_t len, | |
3508 | const char *buf, size_t data_len, int op_flags) | |
3509 | { | |
3510 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3511 | tracepoint(librbd, writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), | |
3512 | ictx->read_only, ofs, len, data_len <= 0 ? NULL : buf, data_len, op_flags); | |
3513 | ||
3514 | if (data_len <= 0 || len % data_len) { | |
3515 | tracepoint(librbd, writesame_exit, -EINVAL); | |
3516 | return -EINVAL; | |
3517 | } | |
3518 | ||
3519 | if (mem_is_zero(buf, data_len)) { | |
3520 | int r = ictx->io_work_queue->discard(ofs, len, false); | |
3521 | tracepoint(librbd, writesame_exit, r); | |
3522 | return r; | |
3523 | } | |
3524 | ||
3525 | bufferlist bl; | |
3526 | bl.push_back(create_write_raw(ictx, buf, data_len)); | |
3527 | int r = ictx->io_work_queue->writesame(ofs, len, std::move(bl), op_flags); | |
3528 | tracepoint(librbd, writesame_exit, r); | |
3529 | return r; | |
3530 | } | |
3531 | ||
3532 | extern "C" int rbd_aio_create_completion(void *cb_arg, | |
3533 | rbd_callback_t complete_cb, | |
3534 | rbd_completion_t *c) | |
3535 | { | |
3536 | librbd::RBD::AioCompletion *rbd_comp = | |
3537 | new librbd::RBD::AioCompletion(cb_arg, complete_cb); | |
3538 | *c = (rbd_completion_t) rbd_comp; | |
3539 | return 0; | |
3540 | } | |
3541 | ||
3542 | extern "C" int rbd_aio_write(rbd_image_t image, uint64_t off, size_t len, | |
3543 | const char *buf, rbd_completion_t c) | |
3544 | { | |
3545 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3546 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3547 | tracepoint(librbd, aio_write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, buf, comp->pc); | |
3548 | ||
3549 | bufferlist bl; | |
3550 | bl.push_back(create_write_raw(ictx, buf, len)); | |
3551 | ictx->io_work_queue->aio_write(get_aio_completion(comp), off, len, | |
3552 | std::move(bl), 0); | |
3553 | tracepoint(librbd, aio_write_exit, 0); | |
3554 | return 0; | |
3555 | } | |
3556 | ||
3557 | extern "C" int rbd_aio_write2(rbd_image_t image, uint64_t off, size_t len, | |
3558 | const char *buf, rbd_completion_t c, int op_flags) | |
3559 | { | |
3560 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3561 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3562 | tracepoint(librbd, aio_write2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), | |
3563 | ictx->read_only, off, len, buf, comp->pc, op_flags); | |
3564 | ||
3565 | bufferlist bl; | |
3566 | bl.push_back(create_write_raw(ictx, buf, len)); | |
3567 | ictx->io_work_queue->aio_write(get_aio_completion(comp), off, len, | |
3568 | std::move(bl), op_flags); | |
3569 | tracepoint(librbd, aio_write_exit, 0); | |
3570 | return 0; | |
3571 | } | |
3572 | ||
3573 | extern "C" int rbd_aio_writev(rbd_image_t image, const struct iovec *iov, | |
3574 | int iovcnt, uint64_t off, rbd_completion_t c) | |
3575 | { | |
3576 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3577 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3578 | ||
3579 | // convert the scatter list into a bufferlist | |
3580 | ssize_t len = 0; | |
3581 | bufferlist bl; | |
3582 | for (int i = 0; i < iovcnt; ++i) { | |
3583 | const struct iovec &io = iov[i]; | |
3584 | len += io.iov_len; | |
3585 | if (len < 0) { | |
3586 | break; | |
3587 | } | |
3588 | ||
3589 | bl.push_back(create_write_raw(ictx, static_cast<char*>(io.iov_base), | |
3590 | io.iov_len)); | |
3591 | } | |
3592 | ||
3593 | int r = 0; | |
3594 | if (iovcnt <= 0 || len < 0) { | |
3595 | r = -EINVAL; | |
3596 | } | |
3597 | ||
3598 | tracepoint(librbd, aio_write_enter, ictx, ictx->name.c_str(), | |
3599 | ictx->snap_name.c_str(), ictx->read_only, off, len, NULL, | |
3600 | comp->pc); | |
3601 | if (r == 0) { | |
3602 | ictx->io_work_queue->aio_write(get_aio_completion(comp), off, len, | |
3603 | std::move(bl), 0); | |
3604 | } | |
3605 | tracepoint(librbd, aio_write_exit, r); | |
3606 | return r; | |
3607 | } | |
3608 | ||
3609 | extern "C" int rbd_aio_discard(rbd_image_t image, uint64_t off, uint64_t len, | |
3610 | rbd_completion_t c) | |
3611 | { | |
3612 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3613 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3614 | tracepoint(librbd, aio_discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, comp->pc); | |
3615 | ictx->io_work_queue->aio_discard(get_aio_completion(comp), off, len, ictx->skip_partial_discard); | |
3616 | tracepoint(librbd, aio_discard_exit, 0); | |
3617 | return 0; | |
3618 | } | |
3619 | ||
3620 | extern "C" int rbd_aio_read(rbd_image_t image, uint64_t off, size_t len, | |
3621 | char *buf, rbd_completion_t c) | |
3622 | { | |
3623 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3624 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3625 | tracepoint(librbd, aio_read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, buf, comp->pc); | |
3626 | ictx->io_work_queue->aio_read(get_aio_completion(comp), off, len, | |
3627 | librbd::io::ReadResult{buf, len}, 0); | |
3628 | tracepoint(librbd, aio_read_exit, 0); | |
3629 | return 0; | |
3630 | } | |
3631 | ||
3632 | extern "C" int rbd_aio_read2(rbd_image_t image, uint64_t off, size_t len, | |
3633 | char *buf, rbd_completion_t c, int op_flags) | |
3634 | { | |
3635 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3636 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3637 | tracepoint(librbd, aio_read2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), | |
3638 | ictx->read_only, off, len, buf, comp->pc, op_flags); | |
3639 | ictx->io_work_queue->aio_read(get_aio_completion(comp), off, len, | |
3640 | librbd::io::ReadResult{buf, len},op_flags); | |
3641 | tracepoint(librbd, aio_read_exit, 0); | |
3642 | return 0; | |
3643 | } | |
3644 | ||
3645 | extern "C" int rbd_aio_readv(rbd_image_t image, const struct iovec *iov, | |
3646 | int iovcnt, uint64_t off, rbd_completion_t c) | |
3647 | { | |
3648 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3649 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3650 | ||
3651 | ssize_t len = 0; | |
3652 | for (int i = 0; i < iovcnt; ++i) { | |
3653 | len += iov[i].iov_len; | |
3654 | if (len < 0) { | |
3655 | break; | |
3656 | } | |
3657 | } | |
3658 | ||
3659 | int r = 0; | |
3660 | if (iovcnt == 0 || len < 0) { | |
3661 | r = -EINVAL; | |
3662 | } | |
3663 | ||
3664 | tracepoint(librbd, aio_read_enter, ictx, ictx->name.c_str(), | |
3665 | ictx->snap_name.c_str(), ictx->read_only, off, len, NULL, | |
3666 | comp->pc); | |
3667 | if (r == 0) { | |
3668 | librbd::io::ReadResult read_result; | |
3669 | if (iovcnt == 1) { | |
3670 | read_result = librbd::io::ReadResult( | |
3671 | static_cast<char *>(iov[0].iov_base), iov[0].iov_len); | |
3672 | } else { | |
3673 | read_result = librbd::io::ReadResult(iov, iovcnt); | |
3674 | } | |
3675 | ictx->io_work_queue->aio_read(get_aio_completion(comp), off, len, | |
3676 | std::move(read_result), 0); | |
3677 | } | |
3678 | tracepoint(librbd, aio_read_exit, r); | |
3679 | return r; | |
3680 | } | |
3681 | ||
3682 | extern "C" int rbd_flush(rbd_image_t image) | |
3683 | { | |
3684 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3685 | tracepoint(librbd, flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
3686 | int r = librbd::flush(ictx); | |
3687 | tracepoint(librbd, flush_exit, r); | |
3688 | return r; | |
3689 | } | |
3690 | ||
3691 | extern "C" int rbd_aio_flush(rbd_image_t image, rbd_completion_t c) | |
3692 | { | |
3693 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3694 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3695 | tracepoint(librbd, aio_flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc); | |
3696 | ictx->io_work_queue->aio_flush(get_aio_completion(comp)); | |
3697 | tracepoint(librbd, aio_flush_exit, 0); | |
3698 | return 0; | |
3699 | } | |
3700 | ||
3701 | extern "C" int rbd_aio_writesame(rbd_image_t image, uint64_t off, size_t len, | |
3702 | const char *buf, size_t data_len, rbd_completion_t c, | |
3703 | int op_flags) | |
3704 | { | |
3705 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3706 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3707 | tracepoint(librbd, aio_writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), | |
3708 | ictx->read_only, off, len, data_len <= 0 ? NULL : buf, data_len, comp->pc, | |
3709 | op_flags); | |
3710 | ||
3711 | if (data_len <= 0 || len % data_len) { | |
3712 | tracepoint(librbd, aio_writesame_exit, -EINVAL); | |
3713 | return -EINVAL; | |
3714 | } | |
3715 | ||
3716 | if (mem_is_zero(buf, data_len)) { | |
3717 | ictx->io_work_queue->aio_discard(get_aio_completion(comp), off, len, false); | |
3718 | tracepoint(librbd, aio_writesame_exit, 0); | |
3719 | return 0; | |
3720 | } | |
3721 | ||
3722 | bufferlist bl; | |
3723 | bl.push_back(create_write_raw(ictx, buf, data_len)); | |
3724 | ictx->io_work_queue->aio_writesame(get_aio_completion(comp), off, len, | |
3725 | std::move(bl), op_flags); | |
3726 | tracepoint(librbd, aio_writesame_exit, 0); | |
3727 | return 0; | |
3728 | } | |
3729 | ||
3730 | extern "C" int rbd_invalidate_cache(rbd_image_t image) | |
3731 | { | |
3732 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3733 | tracepoint(librbd, invalidate_cache_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); | |
3734 | int r = librbd::invalidate_cache(ictx); | |
3735 | tracepoint(librbd, invalidate_cache_exit, r); | |
3736 | return r; | |
3737 | } | |
3738 | ||
3739 | extern "C" int rbd_poll_io_events(rbd_image_t image, rbd_completion_t *comps, int numcomp) | |
3740 | { | |
3741 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3742 | librbd::io::AioCompletion *cs[numcomp]; | |
3743 | tracepoint(librbd, poll_io_events_enter, ictx, numcomp); | |
3744 | int r = librbd::poll_io_events(ictx, cs, numcomp); | |
3745 | tracepoint(librbd, poll_io_events_exit, r); | |
3746 | if (r > 0) { | |
3747 | for (int i = 0; i < r; ++i) | |
3748 | comps[i] = cs[i]->rbd_comp; | |
3749 | } | |
3750 | return r; | |
3751 | } | |
3752 | ||
3753 | extern "C" int rbd_metadata_get(rbd_image_t image, const char *key, char *value, size_t *vallen) | |
3754 | { | |
3755 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3756 | string val_s; | |
3757 | tracepoint(librbd, metadata_get_enter, ictx, key); | |
3758 | int r = librbd::metadata_get(ictx, key, &val_s); | |
3759 | if (r < 0) { | |
3760 | tracepoint(librbd, metadata_get_exit, r, key, NULL); | |
3761 | return r; | |
3762 | } | |
3763 | if (*vallen < val_s.size() + 1) { | |
3764 | r = -ERANGE; | |
3765 | *vallen = val_s.size() + 1; | |
3766 | tracepoint(librbd, metadata_get_exit, r, key, NULL); | |
3767 | } else { | |
3768 | strncpy(value, val_s.c_str(), val_s.size() + 1); | |
3769 | tracepoint(librbd, metadata_get_exit, r, key, value); | |
3770 | } | |
3771 | return r; | |
3772 | } | |
3773 | ||
3774 | extern "C" int rbd_metadata_set(rbd_image_t image, const char *key, const char *value) | |
3775 | { | |
3776 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3777 | tracepoint(librbd, metadata_set_enter, ictx, key, value); | |
3778 | int r = ictx->operations->metadata_set(key, value); | |
3779 | tracepoint(librbd, metadata_set_exit, r); | |
3780 | return r; | |
3781 | } | |
3782 | ||
3783 | extern "C" int rbd_metadata_remove(rbd_image_t image, const char *key) | |
3784 | { | |
3785 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3786 | tracepoint(librbd, metadata_remove_enter, ictx, key); | |
3787 | int r = ictx->operations->metadata_remove(key); | |
3788 | tracepoint(librbd, metadata_remove_exit, r); | |
3789 | return r; | |
3790 | } | |
3791 | ||
3792 | extern "C" int rbd_metadata_list(rbd_image_t image, const char *start, uint64_t max, | |
3793 | char *key, size_t *key_len, char *value, size_t *val_len) | |
3794 | { | |
3795 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3796 | tracepoint(librbd, metadata_list_enter, ictx); | |
3797 | map<string, bufferlist> pairs; | |
3798 | int r = librbd::metadata_list(ictx, start, max, &pairs); | |
3799 | size_t key_total_len = 0, val_total_len = 0; | |
3800 | bool too_short = false; | |
3801 | for (map<string, bufferlist>::iterator it = pairs.begin(); | |
3802 | it != pairs.end(); ++it) { | |
3803 | key_total_len += it->first.size() + 1; | |
3804 | val_total_len += it->second.length() + 1; | |
3805 | } | |
3806 | if (*key_len < key_total_len || *val_len < val_total_len) | |
3807 | too_short = true; | |
3808 | *key_len = key_total_len; | |
3809 | *val_len = val_total_len; | |
3810 | if (too_short) { | |
3811 | tracepoint(librbd, metadata_list_exit, -ERANGE); | |
3812 | return -ERANGE; | |
3813 | } | |
3814 | ||
3815 | char *key_p = key, *value_p = value; | |
3816 | ||
3817 | for (map<string, bufferlist>::iterator it = pairs.begin(); | |
3818 | it != pairs.end(); ++it) { | |
3819 | strncpy(key_p, it->first.c_str(), it->first.size() + 1); | |
3820 | key_p += it->first.size() + 1; | |
3821 | strncpy(value_p, it->second.c_str(), it->second.length()); | |
3822 | value_p += it->second.length(); | |
3823 | *value_p = '\0'; | |
3824 | value_p++; | |
3825 | tracepoint(librbd, metadata_list_entry, it->first.c_str(), it->second.c_str()); | |
3826 | } | |
3827 | tracepoint(librbd, metadata_list_exit, r); | |
3828 | return r; | |
3829 | } | |
3830 | ||
3831 | extern "C" int rbd_mirror_image_enable(rbd_image_t image) | |
3832 | { | |
3833 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3834 | return librbd::api::Mirror<>::image_enable(ictx, false); | |
3835 | } | |
3836 | ||
3837 | extern "C" int rbd_mirror_image_disable(rbd_image_t image, bool force) | |
3838 | { | |
3839 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3840 | return librbd::api::Mirror<>::image_disable(ictx, force); | |
3841 | } | |
3842 | ||
3843 | extern "C" int rbd_mirror_image_promote(rbd_image_t image, bool force) | |
3844 | { | |
3845 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3846 | return librbd::api::Mirror<>::image_promote(ictx, force); | |
3847 | } | |
3848 | ||
3849 | extern "C" int rbd_mirror_image_demote(rbd_image_t image) | |
3850 | { | |
3851 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3852 | return librbd::api::Mirror<>::image_demote(ictx); | |
3853 | } | |
3854 | ||
3855 | extern "C" int rbd_mirror_image_resync(rbd_image_t image) | |
3856 | { | |
3857 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3858 | return librbd::api::Mirror<>::image_resync(ictx); | |
3859 | } | |
3860 | ||
3861 | extern "C" int rbd_mirror_image_get_info(rbd_image_t image, | |
3862 | rbd_mirror_image_info_t *mirror_image_info, | |
3863 | size_t info_size) | |
3864 | { | |
3865 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3866 | ||
3867 | librbd::mirror_image_info_t cpp_mirror_image; | |
3868 | int r = librbd::api::Mirror<>::image_get_info(ictx, &cpp_mirror_image, | |
3869 | sizeof(cpp_mirror_image)); | |
3870 | if (r < 0) { | |
3871 | return r; | |
3872 | } | |
3873 | ||
3874 | mirror_image_info_cpp_to_c(cpp_mirror_image, mirror_image_info); | |
3875 | return 0; | |
3876 | } | |
3877 | ||
3878 | extern "C" int rbd_mirror_image_get_status(rbd_image_t image, | |
3879 | rbd_mirror_image_status_t *status, | |
3880 | size_t status_size) | |
3881 | { | |
3882 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3883 | ||
3884 | librbd::mirror_image_status_t cpp_status; | |
3885 | int r = librbd::api::Mirror<>::image_get_status(ictx, &cpp_status, | |
3886 | sizeof(cpp_status)); | |
3887 | if (r < 0) { | |
3888 | return r; | |
3889 | } | |
3890 | ||
3891 | mirror_image_status_cpp_to_c(cpp_status, status); | |
3892 | return 0; | |
3893 | } | |
3894 | ||
3895 | extern "C" int rbd_aio_mirror_image_promote(rbd_image_t image, bool force, | |
3896 | rbd_completion_t c) { | |
3897 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3898 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3899 | librbd::api::Mirror<>::image_promote( | |
3900 | ictx, force, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, | |
3901 | get_aio_completion(comp))); | |
3902 | return 0; | |
3903 | } | |
3904 | ||
3905 | extern "C" int rbd_aio_mirror_image_demote(rbd_image_t image, | |
3906 | rbd_completion_t c) { | |
3907 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3908 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3909 | librbd::api::Mirror<>::image_demote( | |
3910 | ictx, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, | |
3911 | get_aio_completion(comp))); | |
3912 | return 0; | |
3913 | } | |
3914 | ||
3915 | extern "C" int rbd_aio_mirror_image_get_info(rbd_image_t image, | |
3916 | rbd_mirror_image_info_t *info, | |
3917 | size_t info_size, | |
3918 | rbd_completion_t c) { | |
3919 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3920 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3921 | ||
3922 | if (sizeof(rbd_mirror_image_info_t) > info_size) { | |
3923 | return -ERANGE; | |
3924 | } | |
3925 | ||
3926 | auto ctx = new C_MirrorImageGetInfo( | |
3927 | info, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, | |
3928 | get_aio_completion(comp))); | |
3929 | librbd::api::Mirror<>::image_get_info( | |
3930 | ictx, &ctx->cpp_mirror_image_info, sizeof(ctx->cpp_mirror_image_info), ctx); | |
3931 | return 0; | |
3932 | } | |
3933 | ||
3934 | extern "C" int rbd_aio_mirror_image_get_status(rbd_image_t image, | |
3935 | rbd_mirror_image_status_t *status, | |
3936 | size_t status_size, | |
3937 | rbd_completion_t c) { | |
3938 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3939 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3940 | ||
3941 | if (sizeof(rbd_mirror_image_status_t) > status_size) { | |
3942 | return -ERANGE; | |
3943 | } | |
3944 | ||
3945 | auto ctx = new C_MirrorImageGetStatus( | |
3946 | status, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, | |
3947 | get_aio_completion(comp))); | |
3948 | librbd::api::Mirror<>::image_get_status( | |
3949 | ictx, &ctx->cpp_mirror_image_status, sizeof(ctx->cpp_mirror_image_status), | |
3950 | ctx); | |
3951 | return 0; | |
3952 | } | |
3953 | ||
3954 | extern "C" int rbd_update_watch(rbd_image_t image, uint64_t *handle, | |
3955 | rbd_update_callback_t watch_cb, void *arg) | |
3956 | { | |
3957 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3958 | C_UpdateWatchCB *wctx = new C_UpdateWatchCB(watch_cb, arg); | |
3959 | tracepoint(librbd, update_watch_enter, ictx, wctx); | |
3960 | int r = ictx->state->register_update_watcher(wctx, &wctx->handle); | |
3961 | tracepoint(librbd, update_watch_exit, r, wctx->handle); | |
3962 | *handle = reinterpret_cast<uint64_t>(wctx); | |
3963 | return r; | |
3964 | } | |
3965 | ||
3966 | extern "C" int rbd_update_unwatch(rbd_image_t image, uint64_t handle) | |
3967 | { | |
3968 | librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; | |
3969 | C_UpdateWatchCB *wctx = reinterpret_cast<C_UpdateWatchCB *>(handle); | |
3970 | tracepoint(librbd, update_unwatch_enter, ictx, wctx->handle); | |
3971 | int r = ictx->state->unregister_update_watcher(wctx->handle); | |
3972 | delete wctx; | |
3973 | tracepoint(librbd, update_unwatch_exit, r); | |
3974 | return r; | |
3975 | } | |
3976 | ||
3977 | extern "C" int rbd_aio_is_complete(rbd_completion_t c) | |
3978 | { | |
3979 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3980 | return comp->is_complete(); | |
3981 | } | |
3982 | ||
3983 | extern "C" int rbd_aio_wait_for_complete(rbd_completion_t c) | |
3984 | { | |
3985 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3986 | return comp->wait_for_complete(); | |
3987 | } | |
3988 | ||
3989 | extern "C" ssize_t rbd_aio_get_return_value(rbd_completion_t c) | |
3990 | { | |
3991 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3992 | return comp->get_return_value(); | |
3993 | } | |
3994 | ||
3995 | extern "C" void *rbd_aio_get_arg(rbd_completion_t c) | |
3996 | { | |
3997 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
3998 | return comp->get_arg(); | |
3999 | } | |
4000 | ||
4001 | extern "C" void rbd_aio_release(rbd_completion_t c) | |
4002 | { | |
4003 | librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; | |
4004 | comp->release(); | |
4005 | } | |
4006 | ||
4007 | extern "C" int rbd_group_create(rados_ioctx_t p, const char *name) | |
4008 | { | |
4009 | librados::IoCtx io_ctx; | |
4010 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
4011 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
4012 | tracepoint(librbd, group_create_enter, io_ctx.get_pool_name().c_str(), | |
4013 | io_ctx.get_id(), name); | |
4014 | int r = librbd::api::Group<>::create(io_ctx, name); | |
4015 | tracepoint(librbd, group_create_exit, r); | |
4016 | return r; | |
4017 | } | |
4018 | ||
4019 | extern "C" int rbd_group_remove(rados_ioctx_t p, const char *name) | |
4020 | { | |
4021 | librados::IoCtx io_ctx; | |
4022 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
4023 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
4024 | tracepoint(librbd, group_remove_enter, io_ctx.get_pool_name().c_str(), | |
4025 | io_ctx.get_id(), name); | |
4026 | int r = librbd::api::Group<>::remove(io_ctx, name); | |
4027 | tracepoint(librbd, group_remove_exit, r); | |
4028 | return r; | |
4029 | } | |
4030 | ||
4031 | extern "C" int rbd_group_list(rados_ioctx_t p, char *names, size_t *size) | |
4032 | { | |
4033 | librados::IoCtx io_ctx; | |
4034 | librados::IoCtx::from_rados_ioctx_t(p, io_ctx); | |
4035 | TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); | |
4036 | tracepoint(librbd, group_list_enter, io_ctx.get_pool_name().c_str(), | |
4037 | io_ctx.get_id()); | |
4038 | ||
4039 | vector<string> cpp_names; | |
4040 | int r = librbd::list(io_ctx, cpp_names); | |
4041 | ||
4042 | if (r == -ENOENT) { | |
4043 | *size = 0; | |
4044 | *names = '\0'; | |
4045 | tracepoint(librbd, group_list_exit, 0); | |
4046 | return 0; | |
4047 | } | |
4048 | ||
4049 | if (r < 0) { | |
4050 | tracepoint(librbd, group_list_exit, r); | |
4051 | return r; | |
4052 | } | |
4053 | ||
4054 | size_t expected_size = 0; | |
4055 | ||
4056 | for (size_t i = 0; i < cpp_names.size(); i++) { | |
4057 | expected_size += cpp_names[i].size() + 1; | |
4058 | } | |
4059 | if (*size < expected_size) { | |
4060 | *size = expected_size; | |
4061 | tracepoint(librbd, group_list_exit, -ERANGE); | |
4062 | return -ERANGE; | |
4063 | } | |
4064 | ||
4065 | if (!names) | |
4066 | return -EINVAL; | |
4067 | ||
4068 | names[expected_size] = '\0'; | |
4069 | for (int i = 0; i < (int)cpp_names.size(); i++) { | |
4070 | const char* name = cpp_names[i].c_str(); | |
4071 | tracepoint(librbd, group_list_entry, name); | |
4072 | strcpy(names, name); | |
4073 | names += strlen(names) + 1; | |
4074 | } | |
4075 | tracepoint(librbd, group_list_exit, (int)expected_size); | |
4076 | return (int)expected_size; | |
4077 | } | |
4078 | ||
4079 | extern "C" int rbd_group_image_add( | |
4080 | rados_ioctx_t group_p, const char *group_name, | |
4081 | rados_ioctx_t image_p, const char *image_name) | |
4082 | { | |
4083 | librados::IoCtx group_ioctx; | |
4084 | librados::IoCtx image_ioctx; | |
4085 | ||
4086 | librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); | |
4087 | librados::IoCtx::from_rados_ioctx_t(image_p, image_ioctx); | |
4088 | ||
4089 | TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); | |
4090 | tracepoint(librbd, group_image_add_enter, group_ioctx.get_pool_name().c_str(), | |
4091 | group_ioctx.get_id(), group_name, image_ioctx.get_pool_name().c_str(), | |
4092 | image_ioctx.get_id(), image_name); | |
4093 | ||
4094 | int r = librbd::api::Group<>::image_add(group_ioctx, group_name, image_ioctx, | |
4095 | image_name); | |
4096 | ||
4097 | tracepoint(librbd, group_image_add_exit, r); | |
4098 | return r; | |
4099 | } | |
4100 | ||
4101 | extern "C" int rbd_group_image_remove( | |
4102 | rados_ioctx_t group_p, const char *group_name, | |
4103 | rados_ioctx_t image_p, const char *image_name) | |
4104 | { | |
4105 | librados::IoCtx group_ioctx; | |
4106 | librados::IoCtx image_ioctx; | |
4107 | ||
4108 | librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); | |
4109 | librados::IoCtx::from_rados_ioctx_t(image_p, image_ioctx); | |
4110 | ||
4111 | TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); | |
4112 | tracepoint(librbd, group_image_remove_enter, group_ioctx.get_pool_name().c_str(), | |
4113 | group_ioctx.get_id(), group_name, image_ioctx.get_pool_name().c_str(), | |
4114 | image_ioctx.get_id(), image_name); | |
4115 | ||
4116 | int r = librbd::api::Group<>::image_remove(group_ioctx, group_name, | |
4117 | image_ioctx, image_name); | |
4118 | ||
4119 | tracepoint(librbd, group_image_remove_exit, r); | |
4120 | return r; | |
4121 | } | |
4122 | ||
4123 | extern "C" int rbd_group_image_remove_by_id(rados_ioctx_t group_p, | |
4124 | const char *group_name, | |
4125 | rados_ioctx_t image_p, | |
4126 | const char *image_id) | |
4127 | { | |
4128 | librados::IoCtx group_ioctx; | |
4129 | librados::IoCtx image_ioctx; | |
4130 | ||
4131 | librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); | |
4132 | librados::IoCtx::from_rados_ioctx_t(image_p, image_ioctx); | |
4133 | ||
4134 | TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); | |
4135 | tracepoint(librbd, group_image_remove_by_id_enter, | |
4136 | group_ioctx.get_pool_name().c_str(), | |
4137 | group_ioctx.get_id(), group_name, | |
4138 | image_ioctx.get_pool_name().c_str(), | |
4139 | image_ioctx.get_id(), image_id); | |
4140 | ||
4141 | int r = librbd::api::Group<>::image_remove_by_id(group_ioctx, group_name, | |
4142 | image_ioctx, image_id); | |
4143 | ||
4144 | tracepoint(librbd, group_image_remove_by_id_exit, r); | |
4145 | return r; | |
4146 | } | |
4147 | ||
4148 | extern "C" int rbd_group_image_list(rados_ioctx_t group_p, | |
4149 | const char *group_name, | |
4150 | rbd_group_image_status_t *images, | |
4151 | size_t *image_size) | |
4152 | { | |
4153 | librados::IoCtx group_ioctx; | |
4154 | librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); | |
4155 | ||
4156 | TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); | |
4157 | tracepoint(librbd, group_image_list_enter, group_ioctx.get_pool_name().c_str(), | |
4158 | group_ioctx.get_id(), group_name); | |
4159 | ||
4160 | std::vector<librbd::group_image_status_t> cpp_images; | |
4161 | int r = librbd::api::Group<>::image_list(group_ioctx, group_name, | |
4162 | &cpp_images); | |
4163 | ||
4164 | if (r == -ENOENT) { | |
4165 | tracepoint(librbd, group_image_list_exit, 0); | |
4166 | return 0; | |
4167 | } | |
4168 | ||
4169 | if (r < 0) { | |
4170 | tracepoint(librbd, group_image_list_exit, r); | |
4171 | return r; | |
4172 | } | |
4173 | ||
4174 | if (*image_size < cpp_images.size()) { | |
4175 | tracepoint(librbd, group_image_list_exit, -ERANGE); | |
4176 | return -ERANGE; | |
4177 | } | |
4178 | ||
4179 | for (size_t i = 0; i < cpp_images.size(); ++i) { | |
4180 | group_image_status_cpp_to_c(cpp_images[i], &images[i]); | |
4181 | } | |
4182 | ||
4183 | tracepoint(librbd, group_image_list_exit, r); | |
4184 | return r; | |
4185 | } | |
4186 | ||
4187 | extern "C" int rbd_image_get_group(rados_ioctx_t image_p, | |
4188 | const char *image_name, | |
4189 | rbd_group_spec_t *c_group_spec) | |
4190 | { | |
4191 | librados::IoCtx io_ctx; | |
4192 | librados::IoCtx::from_rados_ioctx_t(image_p, io_ctx); | |
4193 | ||
4194 | librbd::ImageCtx *ictx = new librbd::ImageCtx(image_name, "", "", io_ctx, false); | |
4195 | int r = ictx->state->open(false); | |
4196 | if (r < 0) { | |
4197 | tracepoint(librbd, open_image_exit, r); | |
4198 | return r; | |
4199 | } | |
4200 | ||
4201 | tracepoint(librbd, image_get_group_enter, ictx->name.c_str()); | |
4202 | librbd::group_spec_t group_spec; | |
4203 | r = librbd::api::Group<>::image_get_group(ictx, &group_spec); | |
4204 | group_spec_cpp_to_c(group_spec, c_group_spec); | |
4205 | tracepoint(librbd, image_get_group_exit, r); | |
4206 | ictx->state->close(); | |
4207 | return r; | |
4208 | } | |
4209 | ||
4210 | extern "C" void rbd_group_spec_cleanup(rbd_group_spec_t *group_spec) { | |
4211 | free(group_spec->name); | |
4212 | } | |
4213 | ||
4214 | extern "C" void rbd_group_image_status_cleanup( | |
4215 | rbd_group_image_status_t *image) { | |
4216 | free(image->spec.name); | |
4217 | } | |
4218 | ||
4219 | extern "C" void rbd_group_image_status_list_cleanup( | |
4220 | rbd_group_image_status_t *images, | |
4221 | size_t len) { | |
4222 | for (size_t i = 0; i < len; ++i) { | |
4223 | rbd_group_image_status_cleanup(&images[i]); | |
4224 | } | |
4225 | } |