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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 | #ifndef CEPH_RGWCACHE_H | |
5 | #define CEPH_RGWCACHE_H | |
6 | ||
7 | #include "rgw_rados.h" | |
8 | #include <string> | |
9 | #include <map> | |
10 | #include "include/types.h" | |
11 | #include "include/utime.h" | |
12 | #include "include/assert.h" | |
13 | #include "common/RWLock.h" | |
14 | ||
15 | enum { | |
16 | UPDATE_OBJ, | |
17 | REMOVE_OBJ, | |
18 | }; | |
19 | ||
20 | #define CACHE_FLAG_DATA 0x01 | |
21 | #define CACHE_FLAG_XATTRS 0x02 | |
22 | #define CACHE_FLAG_META 0x04 | |
23 | #define CACHE_FLAG_MODIFY_XATTRS 0x08 | |
24 | #define CACHE_FLAG_OBJV 0x10 | |
25 | ||
26 | #define mydout(v) lsubdout(T::cct, rgw, v) | |
27 | ||
28 | struct ObjectMetaInfo { | |
29 | uint64_t size; | |
30 | real_time mtime; | |
31 | ||
32 | ObjectMetaInfo() : size(0) {} | |
33 | ||
34 | void encode(bufferlist& bl) const { | |
35 | ENCODE_START(2, 2, bl); | |
36 | ::encode(size, bl); | |
37 | ::encode(mtime, bl); | |
38 | ENCODE_FINISH(bl); | |
39 | } | |
40 | void decode(bufferlist::iterator& bl) { | |
41 | DECODE_START_LEGACY_COMPAT_LEN(2, 2, 2, bl); | |
42 | ::decode(size, bl); | |
43 | ::decode(mtime, bl); | |
44 | DECODE_FINISH(bl); | |
45 | } | |
46 | void dump(Formatter *f) const; | |
47 | static void generate_test_instances(list<ObjectMetaInfo*>& o); | |
48 | }; | |
49 | WRITE_CLASS_ENCODER(ObjectMetaInfo) | |
50 | ||
51 | struct ObjectCacheInfo { | |
b32b8144 FG |
52 | int status = 0; |
53 | uint32_t flags = 0; | |
54 | uint64_t epoch = 0; | |
7c673cae FG |
55 | bufferlist data; |
56 | map<string, bufferlist> xattrs; | |
57 | map<string, bufferlist> rm_xattrs; | |
58 | ObjectMetaInfo meta; | |
b32b8144 | 59 | obj_version version = {}; |
28e407b8 | 60 | ceph::coarse_mono_time time_added; |
7c673cae | 61 | |
b32b8144 | 62 | ObjectCacheInfo() = default; |
7c673cae FG |
63 | |
64 | void encode(bufferlist& bl) const { | |
65 | ENCODE_START(5, 3, bl); | |
66 | ::encode(status, bl); | |
67 | ::encode(flags, bl); | |
68 | ::encode(data, bl); | |
69 | ::encode(xattrs, bl); | |
70 | ::encode(meta, bl); | |
71 | ::encode(rm_xattrs, bl); | |
72 | ::encode(epoch, bl); | |
73 | ::encode(version, bl); | |
74 | ENCODE_FINISH(bl); | |
75 | } | |
76 | void decode(bufferlist::iterator& bl) { | |
77 | DECODE_START_LEGACY_COMPAT_LEN(5, 3, 3, bl); | |
78 | ::decode(status, bl); | |
79 | ::decode(flags, bl); | |
80 | ::decode(data, bl); | |
81 | ::decode(xattrs, bl); | |
82 | ::decode(meta, bl); | |
83 | if (struct_v >= 2) | |
84 | ::decode(rm_xattrs, bl); | |
85 | if (struct_v >= 4) | |
86 | ::decode(epoch, bl); | |
87 | if (struct_v >= 5) | |
88 | ::decode(version, bl); | |
89 | DECODE_FINISH(bl); | |
90 | } | |
91 | void dump(Formatter *f) const; | |
92 | static void generate_test_instances(list<ObjectCacheInfo*>& o); | |
93 | }; | |
94 | WRITE_CLASS_ENCODER(ObjectCacheInfo) | |
95 | ||
96 | struct RGWCacheNotifyInfo { | |
97 | uint32_t op; | |
98 | rgw_raw_obj obj; | |
99 | ObjectCacheInfo obj_info; | |
100 | off_t ofs; | |
101 | string ns; | |
102 | ||
103 | RGWCacheNotifyInfo() : op(0), ofs(0) {} | |
104 | ||
105 | void encode(bufferlist& obl) const { | |
106 | ENCODE_START(2, 2, obl); | |
107 | ::encode(op, obl); | |
108 | ::encode(obj, obl); | |
109 | ::encode(obj_info, obl); | |
110 | ::encode(ofs, obl); | |
111 | ::encode(ns, obl); | |
112 | ENCODE_FINISH(obl); | |
113 | } | |
114 | void decode(bufferlist::iterator& ibl) { | |
115 | DECODE_START_LEGACY_COMPAT_LEN(2, 2, 2, ibl); | |
116 | ::decode(op, ibl); | |
117 | ::decode(obj, ibl); | |
118 | ::decode(obj_info, ibl); | |
119 | ::decode(ofs, ibl); | |
120 | ::decode(ns, ibl); | |
121 | DECODE_FINISH(ibl); | |
122 | } | |
123 | void dump(Formatter *f) const; | |
124 | static void generate_test_instances(list<RGWCacheNotifyInfo*>& o); | |
125 | }; | |
126 | WRITE_CLASS_ENCODER(RGWCacheNotifyInfo) | |
127 | ||
128 | struct ObjectCacheEntry { | |
129 | ObjectCacheInfo info; | |
130 | std::list<string>::iterator lru_iter; | |
131 | uint64_t lru_promotion_ts; | |
132 | uint64_t gen; | |
133 | std::list<pair<RGWChainedCache *, string> > chained_entries; | |
134 | ||
135 | ObjectCacheEntry() : lru_promotion_ts(0), gen(0) {} | |
136 | }; | |
137 | ||
138 | class ObjectCache { | |
139 | std::map<string, ObjectCacheEntry> cache_map; | |
140 | std::list<string> lru; | |
141 | unsigned long lru_size; | |
142 | unsigned long lru_counter; | |
143 | unsigned long lru_window; | |
144 | RWLock lock; | |
145 | CephContext *cct; | |
146 | ||
147 | list<RGWChainedCache *> chained_cache; | |
148 | ||
149 | bool enabled; | |
b32b8144 | 150 | ceph::timespan expiry; |
7c673cae | 151 | |
3a9019d9 FG |
152 | void touch_lru(const string& name, ObjectCacheEntry& entry, std::list<string>::iterator& lru_iter); |
153 | void remove_lru(const string& name, std::list<string>::iterator& lru_iter); | |
b32b8144 | 154 | void invalidate_lru(ObjectCacheEntry& entry); |
7c673cae FG |
155 | |
156 | void do_invalidate_all(); | |
157 | public: | |
158 | ObjectCache() : lru_size(0), lru_counter(0), lru_window(0), lock("ObjectCache"), cct(NULL), enabled(false) { } | |
3a9019d9 FG |
159 | int get(const std::string& name, ObjectCacheInfo& bl, uint32_t mask, rgw_cache_entry_info *cache_info); |
160 | boost::optional<ObjectCacheInfo> get(const std::string& name) { | |
161 | boost::optional<ObjectCacheInfo> info{boost::in_place_init}; | |
162 | auto r = get(name, *info, 0, nullptr); | |
163 | return r < 0 ? boost::none : info; | |
164 | } | |
165 | ||
166 | template<typename F> | |
167 | void for_each(const F& f) { | |
168 | RWLock::RLocker l(lock); | |
169 | if (enabled) { | |
170 | auto now = ceph::coarse_mono_clock::now(); | |
171 | for (const auto& kv : cache_map) { | |
172 | if (expiry.count() && ((now - kv.second.info.time_added) < expiry)) { | |
173 | f(kv.first, kv.second); | |
174 | } | |
175 | } | |
176 | } | |
177 | } | |
178 | ||
179 | void put(const std::string& name, ObjectCacheInfo& bl, rgw_cache_entry_info *cache_info); | |
180 | bool remove(const std::string& name); | |
7c673cae FG |
181 | void set_ctx(CephContext *_cct) { |
182 | cct = _cct; | |
183 | lru_window = cct->_conf->rgw_cache_lru_size / 2; | |
b32b8144 FG |
184 | expiry = std::chrono::seconds(cct->_conf->get_val<uint64_t>( |
185 | "rgw_cache_expiry_interval")); | |
7c673cae FG |
186 | } |
187 | bool chain_cache_entry(list<rgw_cache_entry_info *>& cache_info_entries, RGWChainedCache::Entry *chained_entry); | |
188 | ||
189 | void set_enabled(bool status); | |
190 | ||
191 | void chain_cache(RGWChainedCache *cache); | |
192 | void invalidate_all(); | |
193 | }; | |
194 | ||
195 | template <class T> | |
196 | class RGWCache : public T | |
197 | { | |
198 | ObjectCache cache; | |
199 | ||
200 | int list_objects_raw_init(rgw_pool& pool, RGWAccessHandle *handle) { | |
201 | return T::list_objects_raw_init(pool, handle); | |
202 | } | |
203 | int list_objects_raw_next(rgw_bucket_dir_entry& obj, RGWAccessHandle *handle) { | |
204 | return T::list_objects_raw_next(obj, handle); | |
205 | } | |
206 | ||
207 | string normal_name(rgw_pool& pool, const std::string& oid) { | |
208 | std::string buf; | |
209 | buf.reserve(pool.name.size() + pool.ns.size() + oid.size() + 2); | |
210 | buf.append(pool.name).append("+").append(pool.ns).append("+").append(oid); | |
211 | return buf; | |
212 | } | |
213 | ||
214 | void normalize_pool_and_obj(rgw_pool& src_pool, const string& src_obj, rgw_pool& dst_pool, string& dst_obj); | |
215 | string normal_name(rgw_raw_obj& obj) { | |
216 | return normal_name(obj.pool, obj.oid); | |
217 | } | |
218 | ||
219 | int init_rados() override { | |
220 | int ret; | |
221 | cache.set_ctx(T::cct); | |
222 | ret = T::init_rados(); | |
223 | if (ret < 0) | |
224 | return ret; | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
229 | bool need_watch_notify() override { | |
230 | return true; | |
231 | } | |
232 | ||
233 | int distribute_cache(const string& normal_name, rgw_raw_obj& obj, ObjectCacheInfo& obj_info, int op); | |
234 | int watch_cb(uint64_t notify_id, | |
235 | uint64_t cookie, | |
236 | uint64_t notifier_id, | |
237 | bufferlist& bl) override; | |
238 | ||
239 | void set_cache_enabled(bool state) override { | |
240 | cache.set_enabled(state); | |
241 | } | |
242 | public: | |
243 | RGWCache() {} | |
244 | ||
245 | void register_chained_cache(RGWChainedCache *cc) override { | |
246 | cache.chain_cache(cc); | |
247 | } | |
248 | ||
249 | int system_obj_set_attrs(void *ctx, rgw_raw_obj& obj, | |
250 | map<string, bufferlist>& attrs, | |
251 | map<string, bufferlist>* rmattrs, | |
252 | RGWObjVersionTracker *objv_tracker); | |
253 | int put_system_obj_impl(rgw_raw_obj& obj, uint64_t size, real_time *mtime, | |
254 | map<std::string, bufferlist>& attrs, int flags, | |
255 | bufferlist& data, | |
256 | RGWObjVersionTracker *objv_tracker, | |
257 | real_time set_mtime) override; | |
258 | int put_system_obj_data(void *ctx, rgw_raw_obj& obj, bufferlist& bl, off_t ofs, bool exclusive, | |
259 | RGWObjVersionTracker *objv_tracker = nullptr) override; | |
260 | ||
261 | int get_system_obj(RGWObjectCtx& obj_ctx, RGWRados::SystemObject::Read::GetObjState& read_state, | |
262 | RGWObjVersionTracker *objv_tracker, rgw_raw_obj& obj, | |
263 | bufferlist& bl, off_t ofs, off_t end, | |
264 | map<string, bufferlist> *attrs, | |
b32b8144 FG |
265 | rgw_cache_entry_info *cache_info, |
266 | boost::optional<obj_version> refresh_version = boost::none) override; | |
7c673cae FG |
267 | |
268 | int raw_obj_stat(rgw_raw_obj& obj, uint64_t *psize, real_time *pmtime, uint64_t *epoch, map<string, bufferlist> *attrs, | |
269 | bufferlist *first_chunk, RGWObjVersionTracker *objv_tracker) override; | |
270 | ||
271 | int delete_system_obj(rgw_raw_obj& obj, RGWObjVersionTracker *objv_tracker) override; | |
272 | ||
273 | bool chain_cache_entry(list<rgw_cache_entry_info *>& cache_info_entries, RGWChainedCache::Entry *chained_entry) override { | |
274 | return cache.chain_cache_entry(cache_info_entries, chained_entry); | |
275 | } | |
3a9019d9 FG |
276 | void call_list(const boost::optional<std::string>& filter, |
277 | Formatter* format) override; | |
278 | bool call_inspect(const std::string& target, Formatter* format) override; | |
279 | bool call_erase(const std::string& target) override; | |
280 | void call_zap() override; | |
7c673cae FG |
281 | }; |
282 | ||
283 | template <class T> | |
284 | void RGWCache<T>::normalize_pool_and_obj(rgw_pool& src_pool, const string& src_obj, rgw_pool& dst_pool, string& dst_obj) | |
285 | { | |
286 | if (src_obj.size()) { | |
287 | dst_pool = src_pool; | |
288 | dst_obj = src_obj; | |
289 | } else { | |
290 | dst_pool = T::get_zone_params().domain_root; | |
291 | dst_obj = src_pool.name; | |
292 | } | |
293 | } | |
294 | ||
295 | template <class T> | |
296 | int RGWCache<T>::delete_system_obj(rgw_raw_obj& obj, RGWObjVersionTracker *objv_tracker) | |
297 | { | |
298 | rgw_pool pool; | |
299 | string oid; | |
300 | normalize_pool_and_obj(obj.pool, obj.oid, pool, oid); | |
301 | ||
302 | string name = normal_name(obj); | |
303 | cache.remove(name); | |
304 | ||
305 | ObjectCacheInfo info; | |
306 | distribute_cache(name, obj, info, REMOVE_OBJ); | |
307 | ||
308 | return T::delete_system_obj(obj, objv_tracker); | |
309 | } | |
310 | ||
311 | template <class T> | |
312 | int RGWCache<T>::get_system_obj(RGWObjectCtx& obj_ctx, RGWRados::SystemObject::Read::GetObjState& read_state, | |
313 | RGWObjVersionTracker *objv_tracker, rgw_raw_obj& obj, | |
314 | bufferlist& obl, off_t ofs, off_t end, | |
315 | map<string, bufferlist> *attrs, | |
b32b8144 FG |
316 | rgw_cache_entry_info *cache_info, |
317 | boost::optional<obj_version> refresh_version) | |
7c673cae FG |
318 | { |
319 | rgw_pool pool; | |
320 | string oid; | |
321 | normalize_pool_and_obj(obj.pool, obj.oid, pool, oid); | |
322 | if (ofs != 0) | |
323 | return T::get_system_obj(obj_ctx, read_state, objv_tracker, obj, obl, ofs, end, attrs, cache_info); | |
324 | ||
325 | string name = normal_name(obj.pool, oid); | |
326 | ||
327 | ObjectCacheInfo info; | |
328 | ||
329 | uint32_t flags = CACHE_FLAG_DATA; | |
330 | if (objv_tracker) | |
331 | flags |= CACHE_FLAG_OBJV; | |
332 | if (attrs) | |
333 | flags |= CACHE_FLAG_XATTRS; | |
b32b8144 FG |
334 | |
335 | if ((cache.get(name, info, flags, cache_info) == 0) && | |
336 | (!refresh_version || !info.version.compare(&(*refresh_version)))) { | |
7c673cae FG |
337 | if (info.status < 0) |
338 | return info.status; | |
339 | ||
340 | bufferlist& bl = info.data; | |
341 | ||
342 | bufferlist::iterator i = bl.begin(); | |
343 | ||
344 | obl.clear(); | |
345 | ||
346 | i.copy_all(obl); | |
347 | if (objv_tracker) | |
348 | objv_tracker->read_version = info.version; | |
349 | if (attrs) | |
350 | *attrs = info.xattrs; | |
351 | return bl.length(); | |
352 | } | |
353 | int r = T::get_system_obj(obj_ctx, read_state, objv_tracker, obj, obl, ofs, end, attrs, cache_info); | |
354 | if (r < 0) { | |
355 | if (r == -ENOENT) { // only update ENOENT, we'd rather retry other errors | |
356 | info.status = r; | |
357 | cache.put(name, info, cache_info); | |
358 | } | |
359 | return r; | |
360 | } | |
361 | ||
362 | if (obl.length() == end + 1) { | |
363 | /* in this case, most likely object contains more data, we can't cache it */ | |
364 | return r; | |
365 | } | |
366 | ||
367 | bufferptr p(r); | |
368 | bufferlist& bl = info.data; | |
369 | bl.clear(); | |
370 | bufferlist::iterator o = obl.begin(); | |
371 | o.copy_all(bl); | |
372 | info.status = 0; | |
373 | info.flags = flags; | |
374 | if (objv_tracker) { | |
375 | info.version = objv_tracker->read_version; | |
376 | } | |
377 | if (attrs) { | |
378 | info.xattrs = *attrs; | |
379 | } | |
380 | cache.put(name, info, cache_info); | |
381 | return r; | |
382 | } | |
383 | ||
384 | template <class T> | |
385 | int RGWCache<T>::system_obj_set_attrs(void *ctx, rgw_raw_obj& obj, | |
386 | map<string, bufferlist>& attrs, | |
387 | map<string, bufferlist>* rmattrs, | |
388 | RGWObjVersionTracker *objv_tracker) | |
389 | { | |
390 | rgw_pool pool; | |
391 | string oid; | |
392 | normalize_pool_and_obj(obj.pool, obj.oid, pool, oid); | |
393 | ObjectCacheInfo info; | |
394 | info.xattrs = attrs; | |
395 | if (rmattrs) | |
396 | info.rm_xattrs = *rmattrs; | |
397 | info.status = 0; | |
398 | info.flags = CACHE_FLAG_MODIFY_XATTRS; | |
399 | if (objv_tracker) { | |
400 | info.version = objv_tracker->write_version; | |
401 | info.flags |= CACHE_FLAG_OBJV; | |
402 | } | |
403 | int ret = T::system_obj_set_attrs(ctx, obj, attrs, rmattrs, objv_tracker); | |
404 | string name = normal_name(pool, oid); | |
405 | if (ret >= 0) { | |
406 | cache.put(name, info, NULL); | |
407 | int r = distribute_cache(name, obj, info, UPDATE_OBJ); | |
408 | if (r < 0) | |
409 | mydout(0) << "ERROR: failed to distribute cache for " << obj << dendl; | |
410 | } else { | |
411 | cache.remove(name); | |
412 | } | |
413 | ||
414 | return ret; | |
415 | } | |
416 | ||
417 | template <class T> | |
418 | int RGWCache<T>::put_system_obj_impl(rgw_raw_obj& obj, uint64_t size, real_time *mtime, | |
419 | map<std::string, bufferlist>& attrs, int flags, | |
420 | bufferlist& data, | |
421 | RGWObjVersionTracker *objv_tracker, | |
422 | real_time set_mtime) | |
423 | { | |
424 | rgw_pool pool; | |
425 | string oid; | |
426 | normalize_pool_and_obj(obj.pool, obj.oid, pool, oid); | |
427 | ObjectCacheInfo info; | |
428 | info.xattrs = attrs; | |
429 | info.status = 0; | |
430 | info.data = data; | |
431 | info.flags = CACHE_FLAG_XATTRS | CACHE_FLAG_DATA | CACHE_FLAG_META; | |
432 | if (objv_tracker) { | |
433 | info.version = objv_tracker->write_version; | |
434 | info.flags |= CACHE_FLAG_OBJV; | |
435 | } | |
436 | ceph::real_time result_mtime; | |
437 | int ret = T::put_system_obj_impl(obj, size, &result_mtime, attrs, flags, data, | |
438 | objv_tracker, set_mtime); | |
439 | if (mtime) { | |
440 | *mtime = result_mtime; | |
441 | } | |
442 | info.meta.mtime = result_mtime; | |
443 | info.meta.size = size; | |
444 | string name = normal_name(pool, oid); | |
445 | if (ret >= 0) { | |
446 | cache.put(name, info, NULL); | |
b32b8144 FG |
447 | // Only distribute the cache information if we did not just create |
448 | // the object with the exclusive flag. Note: PUT_OBJ_EXCL implies | |
449 | // PUT_OBJ_CREATE. Generally speaking, when successfully creating | |
450 | // a system object with the exclusive flag it is not necessary to | |
451 | // call distribute_cache, as a) it's unclear whether other RGWs | |
452 | // will need that system object in the near-term and b) it | |
453 | // generates additional network traffic. | |
454 | if (!(flags & PUT_OBJ_EXCL)) { | |
455 | int r = distribute_cache(name, obj, info, UPDATE_OBJ); | |
456 | if (r < 0) | |
457 | mydout(0) << "ERROR: failed to distribute cache for " << obj << dendl; | |
458 | } | |
7c673cae FG |
459 | } else { |
460 | cache.remove(name); | |
461 | } | |
462 | ||
463 | return ret; | |
464 | } | |
465 | ||
466 | template <class T> | |
467 | int RGWCache<T>::put_system_obj_data(void *ctx, rgw_raw_obj& obj, bufferlist& data, off_t ofs, bool exclusive, | |
468 | RGWObjVersionTracker *objv_tracker) | |
469 | { | |
470 | rgw_pool pool; | |
471 | string oid; | |
472 | normalize_pool_and_obj(obj.pool, obj.oid, pool, oid); | |
473 | ObjectCacheInfo info; | |
474 | bool cacheable = false; | |
475 | if ((ofs == 0) || (ofs == -1)) { | |
476 | cacheable = true; | |
477 | info.data = data; | |
478 | info.meta.size = data.length(); | |
479 | info.status = 0; | |
480 | info.flags = CACHE_FLAG_DATA; | |
481 | } | |
482 | if (objv_tracker) { | |
483 | info.version = objv_tracker->write_version; | |
484 | info.flags |= CACHE_FLAG_OBJV; | |
485 | } | |
486 | int ret = T::put_system_obj_data(ctx, obj, data, ofs, exclusive, objv_tracker); | |
487 | if (cacheable) { | |
488 | string name = normal_name(pool, oid); | |
489 | if (ret >= 0) { | |
490 | cache.put(name, info, NULL); | |
491 | int r = distribute_cache(name, obj, info, UPDATE_OBJ); | |
492 | if (r < 0) | |
493 | mydout(0) << "ERROR: failed to distribute cache for " << obj << dendl; | |
494 | } else { | |
495 | cache.remove(name); | |
496 | } | |
497 | } | |
498 | ||
499 | return ret; | |
500 | } | |
501 | ||
502 | template <class T> | |
503 | int RGWCache<T>::raw_obj_stat(rgw_raw_obj& obj, uint64_t *psize, real_time *pmtime, | |
504 | uint64_t *pepoch, map<string, bufferlist> *attrs, | |
505 | bufferlist *first_chunk, RGWObjVersionTracker *objv_tracker) | |
506 | { | |
507 | rgw_pool pool; | |
508 | string oid; | |
509 | normalize_pool_and_obj(obj.pool, obj.oid, pool, oid); | |
510 | ||
511 | string name = normal_name(pool, oid); | |
512 | ||
513 | uint64_t size; | |
514 | real_time mtime; | |
515 | uint64_t epoch; | |
516 | ||
517 | ObjectCacheInfo info; | |
518 | uint32_t flags = CACHE_FLAG_META | CACHE_FLAG_XATTRS; | |
519 | if (objv_tracker) | |
520 | flags |= CACHE_FLAG_OBJV; | |
521 | int r = cache.get(name, info, flags, NULL); | |
522 | if (r == 0) { | |
523 | if (info.status < 0) | |
524 | return info.status; | |
525 | ||
526 | size = info.meta.size; | |
527 | mtime = info.meta.mtime; | |
528 | epoch = info.epoch; | |
529 | if (objv_tracker) | |
530 | objv_tracker->read_version = info.version; | |
531 | goto done; | |
532 | } | |
533 | r = T::raw_obj_stat(obj, &size, &mtime, &epoch, &info.xattrs, first_chunk, objv_tracker); | |
534 | if (r < 0) { | |
535 | if (r == -ENOENT) { | |
536 | info.status = r; | |
537 | cache.put(name, info, NULL); | |
538 | } | |
539 | return r; | |
540 | } | |
541 | info.status = 0; | |
542 | info.epoch = epoch; | |
543 | info.meta.mtime = mtime; | |
544 | info.meta.size = size; | |
545 | info.flags = CACHE_FLAG_META | CACHE_FLAG_XATTRS; | |
546 | if (objv_tracker) { | |
547 | info.flags |= CACHE_FLAG_OBJV; | |
548 | info.version = objv_tracker->read_version; | |
549 | } | |
550 | cache.put(name, info, NULL); | |
551 | done: | |
552 | if (psize) | |
553 | *psize = size; | |
554 | if (pmtime) | |
555 | *pmtime = mtime; | |
556 | if (pepoch) | |
557 | *pepoch = epoch; | |
558 | if (attrs) | |
559 | *attrs = info.xattrs; | |
560 | return 0; | |
561 | } | |
562 | ||
563 | template <class T> | |
564 | int RGWCache<T>::distribute_cache(const string& normal_name, rgw_raw_obj& obj, ObjectCacheInfo& obj_info, int op) | |
565 | { | |
566 | RGWCacheNotifyInfo info; | |
567 | ||
568 | info.op = op; | |
569 | ||
570 | info.obj_info = obj_info; | |
571 | info.obj = obj; | |
572 | bufferlist bl; | |
573 | ::encode(info, bl); | |
574 | return T::distribute(normal_name, bl); | |
575 | } | |
576 | ||
577 | template <class T> | |
578 | int RGWCache<T>::watch_cb(uint64_t notify_id, | |
579 | uint64_t cookie, | |
580 | uint64_t notifier_id, | |
581 | bufferlist& bl) | |
582 | { | |
583 | RGWCacheNotifyInfo info; | |
584 | ||
585 | try { | |
586 | bufferlist::iterator iter = bl.begin(); | |
587 | ::decode(info, iter); | |
588 | } catch (buffer::end_of_buffer& err) { | |
589 | mydout(0) << "ERROR: got bad notification" << dendl; | |
590 | return -EIO; | |
591 | } catch (buffer::error& err) { | |
592 | mydout(0) << "ERROR: buffer::error" << dendl; | |
593 | return -EIO; | |
594 | } | |
595 | ||
596 | rgw_pool pool; | |
597 | string oid; | |
598 | normalize_pool_and_obj(info.obj.pool, info.obj.oid, pool, oid); | |
599 | string name = normal_name(pool, oid); | |
600 | ||
601 | switch (info.op) { | |
602 | case UPDATE_OBJ: | |
603 | cache.put(name, info.obj_info, NULL); | |
604 | break; | |
605 | case REMOVE_OBJ: | |
606 | cache.remove(name); | |
607 | break; | |
608 | default: | |
609 | mydout(0) << "WARNING: got unknown notification op: " << info.op << dendl; | |
610 | return -EINVAL; | |
611 | } | |
612 | ||
613 | return 0; | |
614 | } | |
615 | ||
3a9019d9 FG |
616 | template<typename T> |
617 | void RGWCache<T>::call_list(const boost::optional<std::string>& filter, | |
618 | Formatter* f) | |
619 | { | |
620 | cache.for_each( | |
621 | [this, &filter, f] (const string& name, const ObjectCacheEntry& entry) { | |
622 | if (!filter || name.find(*filter) != name.npos) { | |
623 | T::cache_list_dump_helper(f, name, entry.info.meta.mtime, | |
624 | entry.info.meta.size); | |
625 | } | |
626 | }); | |
627 | } | |
628 | ||
629 | template<typename T> | |
630 | bool RGWCache<T>::call_inspect(const std::string& target, Formatter* f) | |
631 | { | |
632 | if (const auto entry = cache.get(target)) { | |
633 | f->open_object_section("cache_entry"); | |
634 | f->dump_string("name", target.c_str()); | |
635 | entry->dump(f); | |
636 | f->close_section(); | |
637 | return true; | |
638 | } else { | |
639 | return false; | |
640 | } | |
641 | } | |
642 | ||
643 | template<typename T> | |
644 | bool RGWCache<T>::call_erase(const std::string& target) | |
645 | { | |
646 | return cache.remove(target); | |
647 | } | |
648 | ||
649 | template<typename T> | |
650 | void RGWCache<T>::call_zap() | |
651 | { | |
652 | cache.invalidate_all(); | |
653 | } | |
7c673cae | 654 | #endif |