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Commit | Line | Data |
---|---|---|
797ac58c KW |
1 | /* |
2 | * Command line utility to exercise the QEMU I/O path. | |
3 | * | |
4 | * Copyright (C) 2009 Red Hat, Inc. | |
5 | * Copyright (c) 2003-2005 Silicon Graphics, Inc. | |
6 | * | |
7 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
8 | * See the COPYING file in the top-level directory. | |
9 | */ | |
10 | ||
80c71a24 | 11 | #include "qemu/osdep.h" |
da34e65c | 12 | #include "qapi/error.h" |
3d21994f | 13 | #include "qemu-io.h" |
4c7b7e9b HR |
14 | #include "sysemu/block-backend.h" |
15 | #include "block/block.h" | |
16 | #include "block/block_int.h" /* for info_f() */ | |
a8d8ecb7 | 17 | #include "block/qapi.h" |
d49b6836 | 18 | #include "qemu/error-report.h" |
6a1751b7 | 19 | #include "qemu/main-loop.h" |
cd33d02a | 20 | #include "qemu/timer.h" |
a91f9584 | 21 | #include "sysemu/block-backend.h" |
f348b6d1 | 22 | #include "qemu/cutils.h" |
797ac58c KW |
23 | |
24 | #define CMD_NOFILE_OK 0x01 | |
25 | ||
f9883880 | 26 | bool qemuio_misalign; |
797ac58c | 27 | |
c2cdf5c5 KW |
28 | static cmdinfo_t *cmdtab; |
29 | static int ncmds; | |
30 | ||
31 | static int compare_cmdname(const void *a, const void *b) | |
32 | { | |
33 | return strcmp(((const cmdinfo_t *)a)->name, | |
34 | ((const cmdinfo_t *)b)->name); | |
35 | } | |
36 | ||
37 | void qemuio_add_command(const cmdinfo_t *ci) | |
38 | { | |
02c4f26b | 39 | cmdtab = g_renew(cmdinfo_t, cmdtab, ++ncmds); |
c2cdf5c5 KW |
40 | cmdtab[ncmds - 1] = *ci; |
41 | qsort(cmdtab, ncmds, sizeof(*cmdtab), compare_cmdname); | |
42 | } | |
43 | ||
44 | int qemuio_command_usage(const cmdinfo_t *ci) | |
45 | { | |
46 | printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline); | |
47 | return 0; | |
48 | } | |
49 | ||
4c7b7e9b | 50 | static int init_check_command(BlockBackend *blk, const cmdinfo_t *ct) |
c2cdf5c5 KW |
51 | { |
52 | if (ct->flags & CMD_FLAG_GLOBAL) { | |
53 | return 1; | |
54 | } | |
4c7b7e9b | 55 | if (!(ct->flags & CMD_NOFILE_OK) && !blk) { |
c2cdf5c5 KW |
56 | fprintf(stderr, "no file open, try 'help open'\n"); |
57 | return 0; | |
58 | } | |
59 | return 1; | |
60 | } | |
61 | ||
4c7b7e9b | 62 | static int command(BlockBackend *blk, const cmdinfo_t *ct, int argc, |
3d21994f | 63 | char **argv) |
c2cdf5c5 KW |
64 | { |
65 | char *cmd = argv[0]; | |
66 | ||
4c7b7e9b | 67 | if (!init_check_command(blk, ct)) { |
c2cdf5c5 KW |
68 | return 0; |
69 | } | |
70 | ||
71 | if (argc - 1 < ct->argmin || (ct->argmax != -1 && argc - 1 > ct->argmax)) { | |
72 | if (ct->argmax == -1) { | |
73 | fprintf(stderr, | |
74 | "bad argument count %d to %s, expected at least %d arguments\n", | |
75 | argc-1, cmd, ct->argmin); | |
76 | } else if (ct->argmin == ct->argmax) { | |
77 | fprintf(stderr, | |
78 | "bad argument count %d to %s, expected %d arguments\n", | |
79 | argc-1, cmd, ct->argmin); | |
80 | } else { | |
81 | fprintf(stderr, | |
82 | "bad argument count %d to %s, expected between %d and %d arguments\n", | |
83 | argc-1, cmd, ct->argmin, ct->argmax); | |
84 | } | |
85 | return 0; | |
86 | } | |
87 | optind = 0; | |
4c7b7e9b | 88 | return ct->cfunc(blk, argc, argv); |
c2cdf5c5 KW |
89 | } |
90 | ||
91 | static const cmdinfo_t *find_command(const char *cmd) | |
92 | { | |
93 | cmdinfo_t *ct; | |
94 | ||
95 | for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { | |
96 | if (strcmp(ct->name, cmd) == 0 || | |
97 | (ct->altname && strcmp(ct->altname, cmd) == 0)) | |
98 | { | |
99 | return (const cmdinfo_t *)ct; | |
100 | } | |
101 | } | |
102 | return NULL; | |
103 | } | |
104 | ||
4694020d SH |
105 | /* Invoke fn() for commands with a matching prefix */ |
106 | void qemuio_complete_command(const char *input, | |
107 | void (*fn)(const char *cmd, void *opaque), | |
108 | void *opaque) | |
109 | { | |
110 | cmdinfo_t *ct; | |
111 | size_t input_len = strlen(input); | |
112 | ||
113 | for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { | |
114 | if (strncmp(input, ct->name, input_len) == 0) { | |
115 | fn(ct->name, opaque); | |
116 | } | |
117 | } | |
118 | } | |
119 | ||
c2cdf5c5 KW |
120 | static char **breakline(char *input, int *count) |
121 | { | |
122 | int c = 0; | |
123 | char *p; | |
5839e53b | 124 | char **rval = g_new0(char *, 1); |
c2cdf5c5 KW |
125 | |
126 | while (rval && (p = qemu_strsep(&input, " ")) != NULL) { | |
127 | if (!*p) { | |
128 | continue; | |
129 | } | |
130 | c++; | |
08193dd5 | 131 | rval = g_renew(char *, rval, (c + 1)); |
c2cdf5c5 KW |
132 | rval[c - 1] = p; |
133 | rval[c] = NULL; | |
134 | } | |
135 | *count = c; | |
136 | return rval; | |
137 | } | |
138 | ||
797ac58c KW |
139 | static int64_t cvtnum(const char *s) |
140 | { | |
141 | char *end; | |
ef5a7885 JS |
142 | int64_t ret; |
143 | ||
144 | ret = qemu_strtosz_suffix(s, &end, QEMU_STRTOSZ_DEFSUFFIX_B); | |
145 | if (*end != '\0') { | |
146 | /* Detritus at the end of the string */ | |
147 | return -EINVAL; | |
148 | } | |
149 | return ret; | |
797ac58c KW |
150 | } |
151 | ||
a9ecfa00 JS |
152 | static void print_cvtnum_err(int64_t rc, const char *arg) |
153 | { | |
154 | switch (rc) { | |
155 | case -EINVAL: | |
156 | printf("Parsing error: non-numeric argument," | |
157 | " or extraneous/unrecognized suffix -- %s\n", arg); | |
158 | break; | |
159 | case -ERANGE: | |
160 | printf("Parsing error: argument too large -- %s\n", arg); | |
161 | break; | |
162 | default: | |
163 | printf("Parsing error: %s\n", arg); | |
164 | } | |
165 | } | |
166 | ||
0b613881 KW |
167 | #define EXABYTES(x) ((long long)(x) << 60) |
168 | #define PETABYTES(x) ((long long)(x) << 50) | |
169 | #define TERABYTES(x) ((long long)(x) << 40) | |
170 | #define GIGABYTES(x) ((long long)(x) << 30) | |
171 | #define MEGABYTES(x) ((long long)(x) << 20) | |
172 | #define KILOBYTES(x) ((long long)(x) << 10) | |
173 | ||
174 | #define TO_EXABYTES(x) ((x) / EXABYTES(1)) | |
175 | #define TO_PETABYTES(x) ((x) / PETABYTES(1)) | |
176 | #define TO_TERABYTES(x) ((x) / TERABYTES(1)) | |
177 | #define TO_GIGABYTES(x) ((x) / GIGABYTES(1)) | |
178 | #define TO_MEGABYTES(x) ((x) / MEGABYTES(1)) | |
179 | #define TO_KILOBYTES(x) ((x) / KILOBYTES(1)) | |
180 | ||
181 | static void cvtstr(double value, char *str, size_t size) | |
182 | { | |
183 | char *trim; | |
184 | const char *suffix; | |
185 | ||
186 | if (value >= EXABYTES(1)) { | |
187 | suffix = " EiB"; | |
188 | snprintf(str, size - 4, "%.3f", TO_EXABYTES(value)); | |
189 | } else if (value >= PETABYTES(1)) { | |
190 | suffix = " PiB"; | |
191 | snprintf(str, size - 4, "%.3f", TO_PETABYTES(value)); | |
192 | } else if (value >= TERABYTES(1)) { | |
193 | suffix = " TiB"; | |
194 | snprintf(str, size - 4, "%.3f", TO_TERABYTES(value)); | |
195 | } else if (value >= GIGABYTES(1)) { | |
196 | suffix = " GiB"; | |
197 | snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value)); | |
198 | } else if (value >= MEGABYTES(1)) { | |
199 | suffix = " MiB"; | |
200 | snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value)); | |
201 | } else if (value >= KILOBYTES(1)) { | |
202 | suffix = " KiB"; | |
203 | snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value)); | |
204 | } else { | |
205 | suffix = " bytes"; | |
206 | snprintf(str, size - 6, "%f", value); | |
207 | } | |
208 | ||
209 | trim = strstr(str, ".000"); | |
210 | if (trim) { | |
211 | strcpy(trim, suffix); | |
212 | } else { | |
213 | strcat(str, suffix); | |
214 | } | |
215 | } | |
216 | ||
217 | ||
218 | ||
219 | static struct timeval tsub(struct timeval t1, struct timeval t2) | |
220 | { | |
221 | t1.tv_usec -= t2.tv_usec; | |
222 | if (t1.tv_usec < 0) { | |
223 | t1.tv_usec += 1000000; | |
224 | t1.tv_sec--; | |
225 | } | |
226 | t1.tv_sec -= t2.tv_sec; | |
227 | return t1; | |
228 | } | |
229 | ||
230 | static double tdiv(double value, struct timeval tv) | |
231 | { | |
232 | return value / ((double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0)); | |
233 | } | |
234 | ||
235 | #define HOURS(sec) ((sec) / (60 * 60)) | |
236 | #define MINUTES(sec) (((sec) % (60 * 60)) / 60) | |
237 | #define SECONDS(sec) ((sec) % 60) | |
238 | ||
239 | enum { | |
240 | DEFAULT_TIME = 0x0, | |
241 | TERSE_FIXED_TIME = 0x1, | |
242 | VERBOSE_FIXED_TIME = 0x2, | |
243 | }; | |
244 | ||
245 | static void timestr(struct timeval *tv, char *ts, size_t size, int format) | |
246 | { | |
247 | double usec = (double)tv->tv_usec / 1000000.0; | |
248 | ||
249 | if (format & TERSE_FIXED_TIME) { | |
250 | if (!HOURS(tv->tv_sec)) { | |
251 | snprintf(ts, size, "%u:%02u.%02u", | |
252 | (unsigned int) MINUTES(tv->tv_sec), | |
253 | (unsigned int) SECONDS(tv->tv_sec), | |
254 | (unsigned int) (usec * 100)); | |
255 | return; | |
256 | } | |
257 | format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */ | |
258 | } | |
259 | ||
260 | if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) { | |
261 | snprintf(ts, size, "%u:%02u:%02u.%02u", | |
262 | (unsigned int) HOURS(tv->tv_sec), | |
263 | (unsigned int) MINUTES(tv->tv_sec), | |
264 | (unsigned int) SECONDS(tv->tv_sec), | |
265 | (unsigned int) (usec * 100)); | |
266 | } else { | |
267 | snprintf(ts, size, "0.%04u sec", (unsigned int) (usec * 10000)); | |
268 | } | |
269 | } | |
270 | ||
797ac58c KW |
271 | /* |
272 | * Parse the pattern argument to various sub-commands. | |
273 | * | |
274 | * Because the pattern is used as an argument to memset it must evaluate | |
275 | * to an unsigned integer that fits into a single byte. | |
276 | */ | |
277 | static int parse_pattern(const char *arg) | |
278 | { | |
279 | char *endptr = NULL; | |
280 | long pattern; | |
281 | ||
282 | pattern = strtol(arg, &endptr, 0); | |
283 | if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { | |
284 | printf("%s is not a valid pattern byte\n", arg); | |
285 | return -1; | |
286 | } | |
287 | ||
288 | return pattern; | |
289 | } | |
290 | ||
291 | /* | |
292 | * Memory allocation helpers. | |
293 | * | |
294 | * Make sure memory is aligned by default, or purposefully misaligned if | |
295 | * that is specified on the command line. | |
296 | */ | |
297 | ||
298 | #define MISALIGN_OFFSET 16 | |
4c7b7e9b | 299 | static void *qemu_io_alloc(BlockBackend *blk, size_t len, int pattern) |
797ac58c KW |
300 | { |
301 | void *buf; | |
302 | ||
303 | if (qemuio_misalign) { | |
304 | len += MISALIGN_OFFSET; | |
305 | } | |
4c7b7e9b | 306 | buf = blk_blockalign(blk, len); |
797ac58c KW |
307 | memset(buf, pattern, len); |
308 | if (qemuio_misalign) { | |
309 | buf += MISALIGN_OFFSET; | |
310 | } | |
311 | return buf; | |
312 | } | |
313 | ||
314 | static void qemu_io_free(void *p) | |
315 | { | |
316 | if (qemuio_misalign) { | |
317 | p -= MISALIGN_OFFSET; | |
318 | } | |
319 | qemu_vfree(p); | |
320 | } | |
321 | ||
9b0beaf3 | 322 | static void dump_buffer(const void *buffer, int64_t offset, int64_t len) |
797ac58c | 323 | { |
9b0beaf3 JS |
324 | uint64_t i; |
325 | int j; | |
797ac58c KW |
326 | const uint8_t *p; |
327 | ||
328 | for (i = 0, p = buffer; i < len; i += 16) { | |
329 | const uint8_t *s = p; | |
330 | ||
331 | printf("%08" PRIx64 ": ", offset + i); | |
332 | for (j = 0; j < 16 && i + j < len; j++, p++) { | |
333 | printf("%02x ", *p); | |
334 | } | |
335 | printf(" "); | |
336 | for (j = 0; j < 16 && i + j < len; j++, s++) { | |
337 | if (isalnum(*s)) { | |
338 | printf("%c", *s); | |
339 | } else { | |
340 | printf("."); | |
341 | } | |
342 | } | |
343 | printf("\n"); | |
344 | } | |
345 | } | |
346 | ||
347 | static void print_report(const char *op, struct timeval *t, int64_t offset, | |
9b0beaf3 | 348 | int64_t count, int64_t total, int cnt, int Cflag) |
797ac58c KW |
349 | { |
350 | char s1[64], s2[64], ts[64]; | |
351 | ||
352 | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); | |
353 | if (!Cflag) { | |
354 | cvtstr((double)total, s1, sizeof(s1)); | |
355 | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); | |
9b0beaf3 | 356 | printf("%s %"PRId64"/%"PRId64" bytes at offset %" PRId64 "\n", |
797ac58c KW |
357 | op, total, count, offset); |
358 | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", | |
359 | s1, cnt, ts, s2, tdiv((double)cnt, *t)); | |
360 | } else {/* bytes,ops,time,bytes/sec,ops/sec */ | |
9b0beaf3 | 361 | printf("%"PRId64",%d,%s,%.3f,%.3f\n", |
797ac58c KW |
362 | total, cnt, ts, |
363 | tdiv((double)total, *t), | |
364 | tdiv((double)cnt, *t)); | |
365 | } | |
366 | } | |
367 | ||
368 | /* | |
369 | * Parse multiple length statements for vectored I/O, and construct an I/O | |
370 | * vector matching it. | |
371 | */ | |
372 | static void * | |
4c7b7e9b | 373 | create_iovec(BlockBackend *blk, QEMUIOVector *qiov, char **argv, int nr_iov, |
797ac58c KW |
374 | int pattern) |
375 | { | |
376 | size_t *sizes = g_new0(size_t, nr_iov); | |
377 | size_t count = 0; | |
378 | void *buf = NULL; | |
379 | void *p; | |
380 | int i; | |
381 | ||
382 | for (i = 0; i < nr_iov; i++) { | |
383 | char *arg = argv[i]; | |
384 | int64_t len; | |
385 | ||
386 | len = cvtnum(arg); | |
387 | if (len < 0) { | |
a9ecfa00 | 388 | print_cvtnum_err(len, arg); |
797ac58c KW |
389 | goto fail; |
390 | } | |
391 | ||
392 | /* should be SIZE_T_MAX, but that doesn't exist */ | |
393 | if (len > INT_MAX) { | |
a9ecfa00 | 394 | printf("Argument '%s' exceeds maximum size %d\n", arg, INT_MAX); |
797ac58c KW |
395 | goto fail; |
396 | } | |
397 | ||
398 | if (len & 0x1ff) { | |
399 | printf("length argument %" PRId64 | |
400 | " is not sector aligned\n", len); | |
401 | goto fail; | |
402 | } | |
403 | ||
404 | sizes[i] = len; | |
405 | count += len; | |
406 | } | |
407 | ||
408 | qemu_iovec_init(qiov, nr_iov); | |
409 | ||
4c7b7e9b | 410 | buf = p = qemu_io_alloc(blk, count, pattern); |
797ac58c KW |
411 | |
412 | for (i = 0; i < nr_iov; i++) { | |
413 | qemu_iovec_add(qiov, p, sizes[i]); | |
414 | p += sizes[i]; | |
415 | } | |
416 | ||
417 | fail: | |
418 | g_free(sizes); | |
419 | return buf; | |
420 | } | |
421 | ||
9b0beaf3 JS |
422 | static int do_pread(BlockBackend *blk, char *buf, int64_t offset, |
423 | int64_t count, int64_t *total) | |
797ac58c | 424 | { |
9b0beaf3 JS |
425 | if (count > INT_MAX) { |
426 | return -ERANGE; | |
427 | } | |
428 | ||
4c7b7e9b | 429 | *total = blk_pread(blk, offset, (uint8_t *)buf, count); |
797ac58c KW |
430 | if (*total < 0) { |
431 | return *total; | |
432 | } | |
433 | return 1; | |
434 | } | |
435 | ||
9b0beaf3 JS |
436 | static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset, |
437 | int64_t count, int64_t *total) | |
797ac58c | 438 | { |
9b0beaf3 JS |
439 | if (count > INT_MAX) { |
440 | return -ERANGE; | |
441 | } | |
442 | ||
8341f00d | 443 | *total = blk_pwrite(blk, offset, (uint8_t *)buf, count, 0); |
797ac58c KW |
444 | if (*total < 0) { |
445 | return *total; | |
446 | } | |
447 | return 1; | |
448 | } | |
449 | ||
450 | typedef struct { | |
4c7b7e9b | 451 | BlockBackend *blk; |
797ac58c | 452 | int64_t offset; |
9b0beaf3 JS |
453 | int64_t count; |
454 | int64_t *total; | |
797ac58c KW |
455 | int ret; |
456 | bool done; | |
457 | } CoWriteZeroes; | |
458 | ||
459 | static void coroutine_fn co_write_zeroes_entry(void *opaque) | |
460 | { | |
461 | CoWriteZeroes *data = opaque; | |
462 | ||
983a1600 | 463 | data->ret = blk_co_write_zeroes(data->blk, data->offset, data->count, 0); |
797ac58c KW |
464 | data->done = true; |
465 | if (data->ret < 0) { | |
466 | *data->total = data->ret; | |
467 | return; | |
468 | } | |
469 | ||
470 | *data->total = data->count; | |
471 | } | |
472 | ||
9b0beaf3 JS |
473 | static int do_co_write_zeroes(BlockBackend *blk, int64_t offset, int64_t count, |
474 | int64_t *total) | |
797ac58c KW |
475 | { |
476 | Coroutine *co; | |
477 | CoWriteZeroes data = { | |
4c7b7e9b | 478 | .blk = blk, |
797ac58c KW |
479 | .offset = offset, |
480 | .count = count, | |
481 | .total = total, | |
482 | .done = false, | |
483 | }; | |
484 | ||
9b0beaf3 JS |
485 | if (count >> BDRV_SECTOR_BITS > INT_MAX) { |
486 | return -ERANGE; | |
487 | } | |
488 | ||
797ac58c KW |
489 | co = qemu_coroutine_create(co_write_zeroes_entry); |
490 | qemu_coroutine_enter(co, &data); | |
491 | while (!data.done) { | |
4c7b7e9b | 492 | aio_poll(blk_get_aio_context(blk), true); |
797ac58c KW |
493 | } |
494 | if (data.ret < 0) { | |
495 | return data.ret; | |
496 | } else { | |
497 | return 1; | |
498 | } | |
499 | } | |
500 | ||
4c7b7e9b | 501 | static int do_write_compressed(BlockBackend *blk, char *buf, int64_t offset, |
9b0beaf3 | 502 | int64_t count, int64_t *total) |
797ac58c KW |
503 | { |
504 | int ret; | |
505 | ||
9b0beaf3 JS |
506 | if (count >> 9 > INT_MAX) { |
507 | return -ERANGE; | |
508 | } | |
509 | ||
4c7b7e9b | 510 | ret = blk_write_compressed(blk, offset >> 9, (uint8_t *)buf, count >> 9); |
797ac58c KW |
511 | if (ret < 0) { |
512 | return ret; | |
513 | } | |
514 | *total = count; | |
515 | return 1; | |
516 | } | |
517 | ||
4c7b7e9b | 518 | static int do_load_vmstate(BlockBackend *blk, char *buf, int64_t offset, |
9b0beaf3 | 519 | int64_t count, int64_t *total) |
797ac58c | 520 | { |
9b0beaf3 JS |
521 | if (count > INT_MAX) { |
522 | return -ERANGE; | |
523 | } | |
524 | ||
4c7b7e9b | 525 | *total = blk_load_vmstate(blk, (uint8_t *)buf, offset, count); |
797ac58c KW |
526 | if (*total < 0) { |
527 | return *total; | |
528 | } | |
529 | return 1; | |
530 | } | |
531 | ||
4c7b7e9b | 532 | static int do_save_vmstate(BlockBackend *blk, char *buf, int64_t offset, |
9b0beaf3 | 533 | int64_t count, int64_t *total) |
797ac58c | 534 | { |
9b0beaf3 JS |
535 | if (count > INT_MAX) { |
536 | return -ERANGE; | |
537 | } | |
538 | ||
4c7b7e9b | 539 | *total = blk_save_vmstate(blk, (uint8_t *)buf, offset, count); |
797ac58c KW |
540 | if (*total < 0) { |
541 | return *total; | |
542 | } | |
543 | return 1; | |
544 | } | |
545 | ||
546 | #define NOT_DONE 0x7fffffff | |
547 | static void aio_rw_done(void *opaque, int ret) | |
548 | { | |
549 | *(int *)opaque = ret; | |
550 | } | |
551 | ||
4c7b7e9b | 552 | static int do_aio_readv(BlockBackend *blk, QEMUIOVector *qiov, |
797ac58c KW |
553 | int64_t offset, int *total) |
554 | { | |
555 | int async_ret = NOT_DONE; | |
556 | ||
7b3f9712 | 557 | blk_aio_preadv(blk, offset, qiov, 0, aio_rw_done, &async_ret); |
797ac58c KW |
558 | while (async_ret == NOT_DONE) { |
559 | main_loop_wait(false); | |
560 | } | |
561 | ||
562 | *total = qiov->size; | |
563 | return async_ret < 0 ? async_ret : 1; | |
564 | } | |
565 | ||
4c7b7e9b | 566 | static int do_aio_writev(BlockBackend *blk, QEMUIOVector *qiov, |
797ac58c KW |
567 | int64_t offset, int *total) |
568 | { | |
569 | int async_ret = NOT_DONE; | |
570 | ||
7b3f9712 | 571 | blk_aio_pwritev(blk, offset, qiov, 0, aio_rw_done, &async_ret); |
797ac58c KW |
572 | while (async_ret == NOT_DONE) { |
573 | main_loop_wait(false); | |
574 | } | |
575 | ||
576 | *total = qiov->size; | |
577 | return async_ret < 0 ? async_ret : 1; | |
578 | } | |
579 | ||
580 | struct multiwrite_async_ret { | |
581 | int num_done; | |
582 | int error; | |
583 | }; | |
584 | ||
585 | static void multiwrite_cb(void *opaque, int ret) | |
586 | { | |
587 | struct multiwrite_async_ret *async_ret = opaque; | |
588 | ||
589 | async_ret->num_done++; | |
590 | if (ret < 0) { | |
591 | async_ret->error = ret; | |
592 | } | |
593 | } | |
594 | ||
4c7b7e9b | 595 | static int do_aio_multiwrite(BlockBackend *blk, BlockRequest* reqs, |
797ac58c KW |
596 | int num_reqs, int *total) |
597 | { | |
598 | int i, ret; | |
599 | struct multiwrite_async_ret async_ret = { | |
600 | .num_done = 0, | |
601 | .error = 0, | |
602 | }; | |
603 | ||
604 | *total = 0; | |
605 | for (i = 0; i < num_reqs; i++) { | |
606 | reqs[i].cb = multiwrite_cb; | |
607 | reqs[i].opaque = &async_ret; | |
608 | *total += reqs[i].qiov->size; | |
609 | } | |
610 | ||
4c7b7e9b | 611 | ret = blk_aio_multiwrite(blk, reqs, num_reqs); |
797ac58c KW |
612 | if (ret < 0) { |
613 | return ret; | |
614 | } | |
615 | ||
616 | while (async_ret.num_done < num_reqs) { | |
617 | main_loop_wait(false); | |
618 | } | |
619 | ||
620 | return async_ret.error < 0 ? async_ret.error : 1; | |
621 | } | |
622 | ||
623 | static void read_help(void) | |
624 | { | |
625 | printf( | |
626 | "\n" | |
627 | " reads a range of bytes from the given offset\n" | |
628 | "\n" | |
629 | " Example:\n" | |
630 | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" | |
631 | "\n" | |
632 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
633 | " standard output stream (with -v option) for subsequent inspection.\n" | |
634 | " -b, -- read from the VM state rather than the virtual disk\n" | |
635 | " -C, -- report statistics in a machine parsable format\n" | |
636 | " -l, -- length for pattern verification (only with -P)\n" | |
7b3f9712 | 637 | " -p, -- allow unaligned access\n" |
797ac58c KW |
638 | " -P, -- use a pattern to verify read data\n" |
639 | " -q, -- quiet mode, do not show I/O statistics\n" | |
640 | " -s, -- start offset for pattern verification (only with -P)\n" | |
641 | " -v, -- dump buffer to standard output\n" | |
642 | "\n"); | |
643 | } | |
644 | ||
4c7b7e9b | 645 | static int read_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
646 | |
647 | static const cmdinfo_t read_cmd = { | |
648 | .name = "read", | |
649 | .altname = "r", | |
650 | .cfunc = read_f, | |
651 | .argmin = 2, | |
652 | .argmax = -1, | |
653 | .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len", | |
654 | .oneline = "reads a number of bytes at a specified offset", | |
655 | .help = read_help, | |
656 | }; | |
657 | ||
4c7b7e9b | 658 | static int read_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
659 | { |
660 | struct timeval t1, t2; | |
661 | int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; | |
662 | int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; | |
663 | int c, cnt; | |
664 | char *buf; | |
665 | int64_t offset; | |
9b0beaf3 | 666 | int64_t count; |
797ac58c | 667 | /* Some compilers get confused and warn if this is not initialized. */ |
9b0beaf3 JS |
668 | int64_t total = 0; |
669 | int pattern = 0; | |
670 | int64_t pattern_offset = 0, pattern_count = 0; | |
797ac58c | 671 | |
b062ad86 | 672 | while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != -1) { |
797ac58c KW |
673 | switch (c) { |
674 | case 'b': | |
675 | bflag = 1; | |
676 | break; | |
677 | case 'C': | |
678 | Cflag = 1; | |
679 | break; | |
680 | case 'l': | |
681 | lflag = 1; | |
682 | pattern_count = cvtnum(optarg); | |
683 | if (pattern_count < 0) { | |
a9ecfa00 | 684 | print_cvtnum_err(pattern_count, optarg); |
797ac58c KW |
685 | return 0; |
686 | } | |
687 | break; | |
688 | case 'p': | |
689 | pflag = 1; | |
690 | break; | |
691 | case 'P': | |
692 | Pflag = 1; | |
693 | pattern = parse_pattern(optarg); | |
694 | if (pattern < 0) { | |
695 | return 0; | |
696 | } | |
697 | break; | |
698 | case 'q': | |
699 | qflag = 1; | |
700 | break; | |
701 | case 's': | |
702 | sflag = 1; | |
703 | pattern_offset = cvtnum(optarg); | |
704 | if (pattern_offset < 0) { | |
a9ecfa00 | 705 | print_cvtnum_err(pattern_offset, optarg); |
797ac58c KW |
706 | return 0; |
707 | } | |
708 | break; | |
709 | case 'v': | |
710 | vflag = 1; | |
711 | break; | |
712 | default: | |
c2cdf5c5 | 713 | return qemuio_command_usage(&read_cmd); |
797ac58c KW |
714 | } |
715 | } | |
716 | ||
717 | if (optind != argc - 2) { | |
c2cdf5c5 | 718 | return qemuio_command_usage(&read_cmd); |
797ac58c KW |
719 | } |
720 | ||
721 | if (bflag && pflag) { | |
722 | printf("-b and -p cannot be specified at the same time\n"); | |
723 | return 0; | |
724 | } | |
725 | ||
726 | offset = cvtnum(argv[optind]); | |
727 | if (offset < 0) { | |
a9ecfa00 | 728 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
729 | return 0; |
730 | } | |
731 | ||
732 | optind++; | |
733 | count = cvtnum(argv[optind]); | |
734 | if (count < 0) { | |
a9ecfa00 | 735 | print_cvtnum_err(count, argv[optind]); |
797ac58c | 736 | return 0; |
9b0beaf3 JS |
737 | } else if (count > SIZE_MAX) { |
738 | printf("length cannot exceed %" PRIu64 ", given %s\n", | |
739 | (uint64_t) SIZE_MAX, argv[optind]); | |
740 | return 0; | |
797ac58c KW |
741 | } |
742 | ||
743 | if (!Pflag && (lflag || sflag)) { | |
c2cdf5c5 | 744 | return qemuio_command_usage(&read_cmd); |
797ac58c KW |
745 | } |
746 | ||
747 | if (!lflag) { | |
748 | pattern_count = count - pattern_offset; | |
749 | } | |
750 | ||
751 | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { | |
752 | printf("pattern verification range exceeds end of read data\n"); | |
753 | return 0; | |
754 | } | |
755 | ||
756 | if (!pflag) { | |
757 | if (offset & 0x1ff) { | |
758 | printf("offset %" PRId64 " is not sector aligned\n", | |
759 | offset); | |
760 | return 0; | |
761 | } | |
762 | if (count & 0x1ff) { | |
9b0beaf3 | 763 | printf("count %"PRId64" is not sector aligned\n", |
797ac58c KW |
764 | count); |
765 | return 0; | |
766 | } | |
767 | } | |
768 | ||
4c7b7e9b | 769 | buf = qemu_io_alloc(blk, count, 0xab); |
797ac58c KW |
770 | |
771 | gettimeofday(&t1, NULL); | |
7b3f9712 | 772 | if (bflag) { |
4c7b7e9b | 773 | cnt = do_load_vmstate(blk, buf, offset, count, &total); |
797ac58c | 774 | } else { |
7b3f9712 | 775 | cnt = do_pread(blk, buf, offset, count, &total); |
797ac58c KW |
776 | } |
777 | gettimeofday(&t2, NULL); | |
778 | ||
779 | if (cnt < 0) { | |
780 | printf("read failed: %s\n", strerror(-cnt)); | |
781 | goto out; | |
782 | } | |
783 | ||
784 | if (Pflag) { | |
785 | void *cmp_buf = g_malloc(pattern_count); | |
786 | memset(cmp_buf, pattern, pattern_count); | |
787 | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { | |
788 | printf("Pattern verification failed at offset %" | |
9b0beaf3 | 789 | PRId64 ", %"PRId64" bytes\n", |
797ac58c KW |
790 | offset + pattern_offset, pattern_count); |
791 | } | |
792 | g_free(cmp_buf); | |
793 | } | |
794 | ||
795 | if (qflag) { | |
796 | goto out; | |
797 | } | |
798 | ||
799 | if (vflag) { | |
800 | dump_buffer(buf, offset, count); | |
801 | } | |
802 | ||
803 | /* Finally, report back -- -C gives a parsable format */ | |
804 | t2 = tsub(t2, t1); | |
805 | print_report("read", &t2, offset, count, total, cnt, Cflag); | |
806 | ||
807 | out: | |
808 | qemu_io_free(buf); | |
809 | ||
810 | return 0; | |
811 | } | |
812 | ||
813 | static void readv_help(void) | |
814 | { | |
815 | printf( | |
816 | "\n" | |
817 | " reads a range of bytes from the given offset into multiple buffers\n" | |
818 | "\n" | |
819 | " Example:\n" | |
820 | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
821 | "\n" | |
822 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
823 | " standard output stream (with -v option) for subsequent inspection.\n" | |
824 | " Uses multiple iovec buffers if more than one byte range is specified.\n" | |
825 | " -C, -- report statistics in a machine parsable format\n" | |
826 | " -P, -- use a pattern to verify read data\n" | |
827 | " -v, -- dump buffer to standard output\n" | |
828 | " -q, -- quiet mode, do not show I/O statistics\n" | |
829 | "\n"); | |
830 | } | |
831 | ||
4c7b7e9b | 832 | static int readv_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
833 | |
834 | static const cmdinfo_t readv_cmd = { | |
835 | .name = "readv", | |
836 | .cfunc = readv_f, | |
837 | .argmin = 2, | |
838 | .argmax = -1, | |
839 | .args = "[-Cqv] [-P pattern ] off len [len..]", | |
840 | .oneline = "reads a number of bytes at a specified offset", | |
841 | .help = readv_help, | |
842 | }; | |
843 | ||
4c7b7e9b | 844 | static int readv_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
845 | { |
846 | struct timeval t1, t2; | |
847 | int Cflag = 0, qflag = 0, vflag = 0; | |
848 | int c, cnt; | |
849 | char *buf; | |
850 | int64_t offset; | |
851 | /* Some compilers get confused and warn if this is not initialized. */ | |
852 | int total = 0; | |
853 | int nr_iov; | |
854 | QEMUIOVector qiov; | |
855 | int pattern = 0; | |
856 | int Pflag = 0; | |
857 | ||
b062ad86 | 858 | while ((c = getopt(argc, argv, "CP:qv")) != -1) { |
797ac58c KW |
859 | switch (c) { |
860 | case 'C': | |
861 | Cflag = 1; | |
862 | break; | |
863 | case 'P': | |
864 | Pflag = 1; | |
865 | pattern = parse_pattern(optarg); | |
866 | if (pattern < 0) { | |
867 | return 0; | |
868 | } | |
869 | break; | |
870 | case 'q': | |
871 | qflag = 1; | |
872 | break; | |
873 | case 'v': | |
874 | vflag = 1; | |
875 | break; | |
876 | default: | |
c2cdf5c5 | 877 | return qemuio_command_usage(&readv_cmd); |
797ac58c KW |
878 | } |
879 | } | |
880 | ||
881 | if (optind > argc - 2) { | |
c2cdf5c5 | 882 | return qemuio_command_usage(&readv_cmd); |
797ac58c KW |
883 | } |
884 | ||
885 | ||
886 | offset = cvtnum(argv[optind]); | |
887 | if (offset < 0) { | |
a9ecfa00 | 888 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
889 | return 0; |
890 | } | |
891 | optind++; | |
892 | ||
893 | if (offset & 0x1ff) { | |
894 | printf("offset %" PRId64 " is not sector aligned\n", | |
895 | offset); | |
896 | return 0; | |
897 | } | |
898 | ||
899 | nr_iov = argc - optind; | |
4c7b7e9b | 900 | buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, 0xab); |
797ac58c KW |
901 | if (buf == NULL) { |
902 | return 0; | |
903 | } | |
904 | ||
905 | gettimeofday(&t1, NULL); | |
4c7b7e9b | 906 | cnt = do_aio_readv(blk, &qiov, offset, &total); |
797ac58c KW |
907 | gettimeofday(&t2, NULL); |
908 | ||
909 | if (cnt < 0) { | |
910 | printf("readv failed: %s\n", strerror(-cnt)); | |
911 | goto out; | |
912 | } | |
913 | ||
914 | if (Pflag) { | |
915 | void *cmp_buf = g_malloc(qiov.size); | |
916 | memset(cmp_buf, pattern, qiov.size); | |
917 | if (memcmp(buf, cmp_buf, qiov.size)) { | |
918 | printf("Pattern verification failed at offset %" | |
919 | PRId64 ", %zd bytes\n", offset, qiov.size); | |
920 | } | |
921 | g_free(cmp_buf); | |
922 | } | |
923 | ||
924 | if (qflag) { | |
925 | goto out; | |
926 | } | |
927 | ||
928 | if (vflag) { | |
929 | dump_buffer(buf, offset, qiov.size); | |
930 | } | |
931 | ||
932 | /* Finally, report back -- -C gives a parsable format */ | |
933 | t2 = tsub(t2, t1); | |
934 | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); | |
935 | ||
936 | out: | |
937 | qemu_iovec_destroy(&qiov); | |
938 | qemu_io_free(buf); | |
939 | return 0; | |
940 | } | |
941 | ||
942 | static void write_help(void) | |
943 | { | |
944 | printf( | |
945 | "\n" | |
946 | " writes a range of bytes from the given offset\n" | |
947 | "\n" | |
948 | " Example:\n" | |
949 | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" | |
950 | "\n" | |
951 | " Writes into a segment of the currently open file, using a buffer\n" | |
952 | " filled with a set pattern (0xcdcdcdcd).\n" | |
953 | " -b, -- write to the VM state rather than the virtual disk\n" | |
4c7b7e9b | 954 | " -c, -- write compressed data with blk_write_compressed\n" |
7b3f9712 | 955 | " -p, -- allow unaligned access\n" |
797ac58c KW |
956 | " -P, -- use different pattern to fill file\n" |
957 | " -C, -- report statistics in a machine parsable format\n" | |
958 | " -q, -- quiet mode, do not show I/O statistics\n" | |
4c7b7e9b | 959 | " -z, -- write zeroes using blk_co_write_zeroes\n" |
797ac58c KW |
960 | "\n"); |
961 | } | |
962 | ||
4c7b7e9b | 963 | static int write_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
964 | |
965 | static const cmdinfo_t write_cmd = { | |
966 | .name = "write", | |
967 | .altname = "w", | |
968 | .cfunc = write_f, | |
969 | .argmin = 2, | |
970 | .argmax = -1, | |
971 | .args = "[-bcCpqz] [-P pattern ] off len", | |
972 | .oneline = "writes a number of bytes at a specified offset", | |
973 | .help = write_help, | |
974 | }; | |
975 | ||
4c7b7e9b | 976 | static int write_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
977 | { |
978 | struct timeval t1, t2; | |
979 | int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0; | |
980 | int cflag = 0; | |
981 | int c, cnt; | |
982 | char *buf = NULL; | |
983 | int64_t offset; | |
9b0beaf3 | 984 | int64_t count; |
797ac58c | 985 | /* Some compilers get confused and warn if this is not initialized. */ |
9b0beaf3 | 986 | int64_t total = 0; |
797ac58c KW |
987 | int pattern = 0xcd; |
988 | ||
b062ad86 | 989 | while ((c = getopt(argc, argv, "bcCpP:qz")) != -1) { |
797ac58c KW |
990 | switch (c) { |
991 | case 'b': | |
992 | bflag = 1; | |
993 | break; | |
994 | case 'c': | |
995 | cflag = 1; | |
996 | break; | |
997 | case 'C': | |
998 | Cflag = 1; | |
999 | break; | |
1000 | case 'p': | |
1001 | pflag = 1; | |
1002 | break; | |
1003 | case 'P': | |
1004 | Pflag = 1; | |
1005 | pattern = parse_pattern(optarg); | |
1006 | if (pattern < 0) { | |
1007 | return 0; | |
1008 | } | |
1009 | break; | |
1010 | case 'q': | |
1011 | qflag = 1; | |
1012 | break; | |
1013 | case 'z': | |
1014 | zflag = 1; | |
1015 | break; | |
1016 | default: | |
c2cdf5c5 | 1017 | return qemuio_command_usage(&write_cmd); |
797ac58c KW |
1018 | } |
1019 | } | |
1020 | ||
1021 | if (optind != argc - 2) { | |
c2cdf5c5 | 1022 | return qemuio_command_usage(&write_cmd); |
797ac58c KW |
1023 | } |
1024 | ||
1025 | if (bflag + pflag + zflag > 1) { | |
1026 | printf("-b, -p, or -z cannot be specified at the same time\n"); | |
1027 | return 0; | |
1028 | } | |
1029 | ||
1030 | if (zflag && Pflag) { | |
1031 | printf("-z and -P cannot be specified at the same time\n"); | |
1032 | return 0; | |
1033 | } | |
1034 | ||
1035 | offset = cvtnum(argv[optind]); | |
1036 | if (offset < 0) { | |
a9ecfa00 | 1037 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
1038 | return 0; |
1039 | } | |
1040 | ||
1041 | optind++; | |
1042 | count = cvtnum(argv[optind]); | |
1043 | if (count < 0) { | |
a9ecfa00 | 1044 | print_cvtnum_err(count, argv[optind]); |
797ac58c | 1045 | return 0; |
9b0beaf3 JS |
1046 | } else if (count > SIZE_MAX) { |
1047 | printf("length cannot exceed %" PRIu64 ", given %s\n", | |
1048 | (uint64_t) SIZE_MAX, argv[optind]); | |
1049 | return 0; | |
797ac58c KW |
1050 | } |
1051 | ||
1052 | if (!pflag) { | |
1053 | if (offset & 0x1ff) { | |
1054 | printf("offset %" PRId64 " is not sector aligned\n", | |
1055 | offset); | |
1056 | return 0; | |
1057 | } | |
1058 | ||
1059 | if (count & 0x1ff) { | |
9b0beaf3 | 1060 | printf("count %"PRId64" is not sector aligned\n", |
797ac58c KW |
1061 | count); |
1062 | return 0; | |
1063 | } | |
1064 | } | |
1065 | ||
1066 | if (!zflag) { | |
4c7b7e9b | 1067 | buf = qemu_io_alloc(blk, count, pattern); |
797ac58c KW |
1068 | } |
1069 | ||
1070 | gettimeofday(&t1, NULL); | |
7b3f9712 | 1071 | if (bflag) { |
4c7b7e9b | 1072 | cnt = do_save_vmstate(blk, buf, offset, count, &total); |
797ac58c | 1073 | } else if (zflag) { |
4c7b7e9b | 1074 | cnt = do_co_write_zeroes(blk, offset, count, &total); |
797ac58c | 1075 | } else if (cflag) { |
4c7b7e9b | 1076 | cnt = do_write_compressed(blk, buf, offset, count, &total); |
797ac58c | 1077 | } else { |
7b3f9712 | 1078 | cnt = do_pwrite(blk, buf, offset, count, &total); |
797ac58c KW |
1079 | } |
1080 | gettimeofday(&t2, NULL); | |
1081 | ||
1082 | if (cnt < 0) { | |
1083 | printf("write failed: %s\n", strerror(-cnt)); | |
1084 | goto out; | |
1085 | } | |
1086 | ||
1087 | if (qflag) { | |
1088 | goto out; | |
1089 | } | |
1090 | ||
1091 | /* Finally, report back -- -C gives a parsable format */ | |
1092 | t2 = tsub(t2, t1); | |
1093 | print_report("wrote", &t2, offset, count, total, cnt, Cflag); | |
1094 | ||
1095 | out: | |
1096 | if (!zflag) { | |
1097 | qemu_io_free(buf); | |
1098 | } | |
1099 | ||
1100 | return 0; | |
1101 | } | |
1102 | ||
1103 | static void | |
1104 | writev_help(void) | |
1105 | { | |
1106 | printf( | |
1107 | "\n" | |
1108 | " writes a range of bytes from the given offset source from multiple buffers\n" | |
1109 | "\n" | |
1110 | " Example:\n" | |
6e6507c0 | 1111 | " 'writev 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" |
797ac58c KW |
1112 | "\n" |
1113 | " Writes into a segment of the currently open file, using a buffer\n" | |
1114 | " filled with a set pattern (0xcdcdcdcd).\n" | |
1115 | " -P, -- use different pattern to fill file\n" | |
1116 | " -C, -- report statistics in a machine parsable format\n" | |
1117 | " -q, -- quiet mode, do not show I/O statistics\n" | |
1118 | "\n"); | |
1119 | } | |
1120 | ||
4c7b7e9b | 1121 | static int writev_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1122 | |
1123 | static const cmdinfo_t writev_cmd = { | |
1124 | .name = "writev", | |
1125 | .cfunc = writev_f, | |
1126 | .argmin = 2, | |
1127 | .argmax = -1, | |
1128 | .args = "[-Cq] [-P pattern ] off len [len..]", | |
1129 | .oneline = "writes a number of bytes at a specified offset", | |
1130 | .help = writev_help, | |
1131 | }; | |
1132 | ||
4c7b7e9b | 1133 | static int writev_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1134 | { |
1135 | struct timeval t1, t2; | |
1136 | int Cflag = 0, qflag = 0; | |
1137 | int c, cnt; | |
1138 | char *buf; | |
1139 | int64_t offset; | |
1140 | /* Some compilers get confused and warn if this is not initialized. */ | |
1141 | int total = 0; | |
1142 | int nr_iov; | |
1143 | int pattern = 0xcd; | |
1144 | QEMUIOVector qiov; | |
1145 | ||
b062ad86 | 1146 | while ((c = getopt(argc, argv, "CqP:")) != -1) { |
797ac58c KW |
1147 | switch (c) { |
1148 | case 'C': | |
1149 | Cflag = 1; | |
1150 | break; | |
1151 | case 'q': | |
1152 | qflag = 1; | |
1153 | break; | |
1154 | case 'P': | |
1155 | pattern = parse_pattern(optarg); | |
1156 | if (pattern < 0) { | |
1157 | return 0; | |
1158 | } | |
1159 | break; | |
1160 | default: | |
c2cdf5c5 | 1161 | return qemuio_command_usage(&writev_cmd); |
797ac58c KW |
1162 | } |
1163 | } | |
1164 | ||
1165 | if (optind > argc - 2) { | |
c2cdf5c5 | 1166 | return qemuio_command_usage(&writev_cmd); |
797ac58c KW |
1167 | } |
1168 | ||
1169 | offset = cvtnum(argv[optind]); | |
1170 | if (offset < 0) { | |
a9ecfa00 | 1171 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
1172 | return 0; |
1173 | } | |
1174 | optind++; | |
1175 | ||
1176 | if (offset & 0x1ff) { | |
1177 | printf("offset %" PRId64 " is not sector aligned\n", | |
1178 | offset); | |
1179 | return 0; | |
1180 | } | |
1181 | ||
1182 | nr_iov = argc - optind; | |
4c7b7e9b | 1183 | buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern); |
797ac58c KW |
1184 | if (buf == NULL) { |
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | gettimeofday(&t1, NULL); | |
4c7b7e9b | 1189 | cnt = do_aio_writev(blk, &qiov, offset, &total); |
797ac58c KW |
1190 | gettimeofday(&t2, NULL); |
1191 | ||
1192 | if (cnt < 0) { | |
1193 | printf("writev failed: %s\n", strerror(-cnt)); | |
1194 | goto out; | |
1195 | } | |
1196 | ||
1197 | if (qflag) { | |
1198 | goto out; | |
1199 | } | |
1200 | ||
1201 | /* Finally, report back -- -C gives a parsable format */ | |
1202 | t2 = tsub(t2, t1); | |
1203 | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); | |
1204 | out: | |
1205 | qemu_iovec_destroy(&qiov); | |
1206 | qemu_io_free(buf); | |
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | static void multiwrite_help(void) | |
1211 | { | |
1212 | printf( | |
1213 | "\n" | |
1214 | " writes a range of bytes from the given offset source from multiple buffers,\n" | |
1215 | " in a batch of requests that may be merged by qemu\n" | |
1216 | "\n" | |
1217 | " Example:\n" | |
1218 | " 'multiwrite 512 1k 1k ; 4k 1k'\n" | |
1219 | " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n" | |
1220 | "\n" | |
1221 | " Writes into a segment of the currently open file, using a buffer\n" | |
1222 | " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n" | |
1223 | " by one for each request contained in the multiwrite command.\n" | |
1224 | " -P, -- use different pattern to fill file\n" | |
1225 | " -C, -- report statistics in a machine parsable format\n" | |
1226 | " -q, -- quiet mode, do not show I/O statistics\n" | |
1227 | "\n"); | |
1228 | } | |
1229 | ||
4c7b7e9b | 1230 | static int multiwrite_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1231 | |
1232 | static const cmdinfo_t multiwrite_cmd = { | |
1233 | .name = "multiwrite", | |
1234 | .cfunc = multiwrite_f, | |
1235 | .argmin = 2, | |
1236 | .argmax = -1, | |
1237 | .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]", | |
1238 | .oneline = "issues multiple write requests at once", | |
1239 | .help = multiwrite_help, | |
1240 | }; | |
1241 | ||
4c7b7e9b | 1242 | static int multiwrite_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1243 | { |
1244 | struct timeval t1, t2; | |
1245 | int Cflag = 0, qflag = 0; | |
1246 | int c, cnt; | |
1247 | char **buf; | |
1248 | int64_t offset, first_offset = 0; | |
1249 | /* Some compilers get confused and warn if this is not initialized. */ | |
1250 | int total = 0; | |
1251 | int nr_iov; | |
1252 | int nr_reqs; | |
1253 | int pattern = 0xcd; | |
1254 | QEMUIOVector *qiovs; | |
1255 | int i; | |
1256 | BlockRequest *reqs; | |
1257 | ||
b062ad86 | 1258 | while ((c = getopt(argc, argv, "CqP:")) != -1) { |
797ac58c KW |
1259 | switch (c) { |
1260 | case 'C': | |
1261 | Cflag = 1; | |
1262 | break; | |
1263 | case 'q': | |
1264 | qflag = 1; | |
1265 | break; | |
1266 | case 'P': | |
1267 | pattern = parse_pattern(optarg); | |
1268 | if (pattern < 0) { | |
1269 | return 0; | |
1270 | } | |
1271 | break; | |
1272 | default: | |
c2cdf5c5 | 1273 | return qemuio_command_usage(&writev_cmd); |
797ac58c KW |
1274 | } |
1275 | } | |
1276 | ||
1277 | if (optind > argc - 2) { | |
c2cdf5c5 | 1278 | return qemuio_command_usage(&writev_cmd); |
797ac58c KW |
1279 | } |
1280 | ||
1281 | nr_reqs = 1; | |
1282 | for (i = optind; i < argc; i++) { | |
1283 | if (!strcmp(argv[i], ";")) { | |
1284 | nr_reqs++; | |
1285 | } | |
1286 | } | |
1287 | ||
02c4f26b MA |
1288 | reqs = g_new0(BlockRequest, nr_reqs); |
1289 | buf = g_new0(char *, nr_reqs); | |
1290 | qiovs = g_new(QEMUIOVector, nr_reqs); | |
797ac58c KW |
1291 | |
1292 | for (i = 0; i < nr_reqs && optind < argc; i++) { | |
1293 | int j; | |
1294 | ||
1295 | /* Read the offset of the request */ | |
1296 | offset = cvtnum(argv[optind]); | |
1297 | if (offset < 0) { | |
a9ecfa00 | 1298 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
1299 | goto out; |
1300 | } | |
1301 | optind++; | |
1302 | ||
1303 | if (offset & 0x1ff) { | |
1304 | printf("offset %lld is not sector aligned\n", | |
1305 | (long long)offset); | |
1306 | goto out; | |
1307 | } | |
1308 | ||
1309 | if (i == 0) { | |
1310 | first_offset = offset; | |
1311 | } | |
1312 | ||
1313 | /* Read lengths for qiov entries */ | |
1314 | for (j = optind; j < argc; j++) { | |
1315 | if (!strcmp(argv[j], ";")) { | |
1316 | break; | |
1317 | } | |
1318 | } | |
1319 | ||
1320 | nr_iov = j - optind; | |
1321 | ||
1322 | /* Build request */ | |
4c7b7e9b | 1323 | buf[i] = create_iovec(blk, &qiovs[i], &argv[optind], nr_iov, pattern); |
797ac58c KW |
1324 | if (buf[i] == NULL) { |
1325 | goto out; | |
1326 | } | |
1327 | ||
1328 | reqs[i].qiov = &qiovs[i]; | |
1329 | reqs[i].sector = offset >> 9; | |
1330 | reqs[i].nb_sectors = reqs[i].qiov->size >> 9; | |
1331 | ||
1332 | optind = j + 1; | |
1333 | ||
1334 | pattern++; | |
1335 | } | |
1336 | ||
1337 | /* If there were empty requests at the end, ignore them */ | |
1338 | nr_reqs = i; | |
1339 | ||
1340 | gettimeofday(&t1, NULL); | |
4c7b7e9b | 1341 | cnt = do_aio_multiwrite(blk, reqs, nr_reqs, &total); |
797ac58c KW |
1342 | gettimeofday(&t2, NULL); |
1343 | ||
1344 | if (cnt < 0) { | |
1345 | printf("aio_multiwrite failed: %s\n", strerror(-cnt)); | |
1346 | goto out; | |
1347 | } | |
1348 | ||
1349 | if (qflag) { | |
1350 | goto out; | |
1351 | } | |
1352 | ||
1353 | /* Finally, report back -- -C gives a parsable format */ | |
1354 | t2 = tsub(t2, t1); | |
1355 | print_report("wrote", &t2, first_offset, total, total, cnt, Cflag); | |
1356 | out: | |
1357 | for (i = 0; i < nr_reqs; i++) { | |
1358 | qemu_io_free(buf[i]); | |
1359 | if (reqs[i].qiov != NULL) { | |
1360 | qemu_iovec_destroy(&qiovs[i]); | |
1361 | } | |
1362 | } | |
1363 | g_free(buf); | |
1364 | g_free(reqs); | |
1365 | g_free(qiovs); | |
1366 | return 0; | |
1367 | } | |
1368 | ||
1369 | struct aio_ctx { | |
4c7b7e9b | 1370 | BlockBackend *blk; |
797ac58c KW |
1371 | QEMUIOVector qiov; |
1372 | int64_t offset; | |
1373 | char *buf; | |
1374 | int qflag; | |
1375 | int vflag; | |
1376 | int Cflag; | |
1377 | int Pflag; | |
5ceb7765 | 1378 | int zflag; |
a91f9584 | 1379 | BlockAcctCookie acct; |
797ac58c KW |
1380 | int pattern; |
1381 | struct timeval t1; | |
1382 | }; | |
1383 | ||
1384 | static void aio_write_done(void *opaque, int ret) | |
1385 | { | |
1386 | struct aio_ctx *ctx = opaque; | |
1387 | struct timeval t2; | |
1388 | ||
1389 | gettimeofday(&t2, NULL); | |
1390 | ||
1391 | ||
1392 | if (ret < 0) { | |
1393 | printf("aio_write failed: %s\n", strerror(-ret)); | |
556c2b60 | 1394 | block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); |
797ac58c KW |
1395 | goto out; |
1396 | } | |
1397 | ||
4c7b7e9b | 1398 | block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); |
a91f9584 | 1399 | |
797ac58c KW |
1400 | if (ctx->qflag) { |
1401 | goto out; | |
1402 | } | |
1403 | ||
1404 | /* Finally, report back -- -C gives a parsable format */ | |
1405 | t2 = tsub(t2, ctx->t1); | |
1406 | print_report("wrote", &t2, ctx->offset, ctx->qiov.size, | |
1407 | ctx->qiov.size, 1, ctx->Cflag); | |
1408 | out: | |
5ceb7765 KW |
1409 | if (!ctx->zflag) { |
1410 | qemu_io_free(ctx->buf); | |
1411 | qemu_iovec_destroy(&ctx->qiov); | |
1412 | } | |
797ac58c KW |
1413 | g_free(ctx); |
1414 | } | |
1415 | ||
1416 | static void aio_read_done(void *opaque, int ret) | |
1417 | { | |
1418 | struct aio_ctx *ctx = opaque; | |
1419 | struct timeval t2; | |
1420 | ||
1421 | gettimeofday(&t2, NULL); | |
1422 | ||
1423 | if (ret < 0) { | |
1424 | printf("readv failed: %s\n", strerror(-ret)); | |
556c2b60 | 1425 | block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); |
797ac58c KW |
1426 | goto out; |
1427 | } | |
1428 | ||
1429 | if (ctx->Pflag) { | |
1430 | void *cmp_buf = g_malloc(ctx->qiov.size); | |
1431 | ||
1432 | memset(cmp_buf, ctx->pattern, ctx->qiov.size); | |
1433 | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { | |
1434 | printf("Pattern verification failed at offset %" | |
1435 | PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size); | |
1436 | } | |
1437 | g_free(cmp_buf); | |
1438 | } | |
1439 | ||
4c7b7e9b | 1440 | block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); |
a91f9584 | 1441 | |
797ac58c KW |
1442 | if (ctx->qflag) { |
1443 | goto out; | |
1444 | } | |
1445 | ||
1446 | if (ctx->vflag) { | |
1447 | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); | |
1448 | } | |
1449 | ||
1450 | /* Finally, report back -- -C gives a parsable format */ | |
1451 | t2 = tsub(t2, ctx->t1); | |
1452 | print_report("read", &t2, ctx->offset, ctx->qiov.size, | |
1453 | ctx->qiov.size, 1, ctx->Cflag); | |
1454 | out: | |
1455 | qemu_io_free(ctx->buf); | |
1456 | qemu_iovec_destroy(&ctx->qiov); | |
1457 | g_free(ctx); | |
1458 | } | |
1459 | ||
1460 | static void aio_read_help(void) | |
1461 | { | |
1462 | printf( | |
1463 | "\n" | |
1464 | " asynchronously reads a range of bytes from the given offset\n" | |
1465 | "\n" | |
1466 | " Example:\n" | |
1467 | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
1468 | "\n" | |
1469 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
1470 | " standard output stream (with -v option) for subsequent inspection.\n" | |
1471 | " The read is performed asynchronously and the aio_flush command must be\n" | |
1472 | " used to ensure all outstanding aio requests have been completed.\n" | |
1473 | " -C, -- report statistics in a machine parsable format\n" | |
1474 | " -P, -- use a pattern to verify read data\n" | |
1475 | " -v, -- dump buffer to standard output\n" | |
1476 | " -q, -- quiet mode, do not show I/O statistics\n" | |
1477 | "\n"); | |
1478 | } | |
1479 | ||
4c7b7e9b | 1480 | static int aio_read_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1481 | |
1482 | static const cmdinfo_t aio_read_cmd = { | |
1483 | .name = "aio_read", | |
1484 | .cfunc = aio_read_f, | |
1485 | .argmin = 2, | |
1486 | .argmax = -1, | |
1487 | .args = "[-Cqv] [-P pattern ] off len [len..]", | |
1488 | .oneline = "asynchronously reads a number of bytes", | |
1489 | .help = aio_read_help, | |
1490 | }; | |
1491 | ||
4c7b7e9b | 1492 | static int aio_read_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1493 | { |
1494 | int nr_iov, c; | |
1495 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); | |
1496 | ||
4c7b7e9b | 1497 | ctx->blk = blk; |
b062ad86 | 1498 | while ((c = getopt(argc, argv, "CP:qv")) != -1) { |
797ac58c KW |
1499 | switch (c) { |
1500 | case 'C': | |
1501 | ctx->Cflag = 1; | |
1502 | break; | |
1503 | case 'P': | |
1504 | ctx->Pflag = 1; | |
1505 | ctx->pattern = parse_pattern(optarg); | |
1506 | if (ctx->pattern < 0) { | |
1507 | g_free(ctx); | |
1508 | return 0; | |
1509 | } | |
1510 | break; | |
1511 | case 'q': | |
1512 | ctx->qflag = 1; | |
1513 | break; | |
1514 | case 'v': | |
1515 | ctx->vflag = 1; | |
1516 | break; | |
1517 | default: | |
1518 | g_free(ctx); | |
c2cdf5c5 | 1519 | return qemuio_command_usage(&aio_read_cmd); |
797ac58c KW |
1520 | } |
1521 | } | |
1522 | ||
1523 | if (optind > argc - 2) { | |
1524 | g_free(ctx); | |
c2cdf5c5 | 1525 | return qemuio_command_usage(&aio_read_cmd); |
797ac58c KW |
1526 | } |
1527 | ||
1528 | ctx->offset = cvtnum(argv[optind]); | |
1529 | if (ctx->offset < 0) { | |
a9ecfa00 | 1530 | print_cvtnum_err(ctx->offset, argv[optind]); |
797ac58c KW |
1531 | g_free(ctx); |
1532 | return 0; | |
1533 | } | |
1534 | optind++; | |
1535 | ||
1536 | if (ctx->offset & 0x1ff) { | |
1537 | printf("offset %" PRId64 " is not sector aligned\n", | |
1538 | ctx->offset); | |
556c2b60 | 1539 | block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); |
797ac58c KW |
1540 | g_free(ctx); |
1541 | return 0; | |
1542 | } | |
1543 | ||
1544 | nr_iov = argc - optind; | |
4c7b7e9b | 1545 | ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, 0xab); |
797ac58c | 1546 | if (ctx->buf == NULL) { |
556c2b60 | 1547 | block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); |
797ac58c KW |
1548 | g_free(ctx); |
1549 | return 0; | |
1550 | } | |
1551 | ||
1552 | gettimeofday(&ctx->t1, NULL); | |
4c7b7e9b HR |
1553 | block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, |
1554 | BLOCK_ACCT_READ); | |
7b3f9712 | 1555 | blk_aio_preadv(blk, ctx->offset, &ctx->qiov, 0, aio_read_done, ctx); |
797ac58c KW |
1556 | return 0; |
1557 | } | |
1558 | ||
1559 | static void aio_write_help(void) | |
1560 | { | |
1561 | printf( | |
1562 | "\n" | |
1563 | " asynchronously writes a range of bytes from the given offset source\n" | |
1564 | " from multiple buffers\n" | |
1565 | "\n" | |
1566 | " Example:\n" | |
1567 | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" | |
1568 | "\n" | |
1569 | " Writes into a segment of the currently open file, using a buffer\n" | |
1570 | " filled with a set pattern (0xcdcdcdcd).\n" | |
1571 | " The write is performed asynchronously and the aio_flush command must be\n" | |
1572 | " used to ensure all outstanding aio requests have been completed.\n" | |
1573 | " -P, -- use different pattern to fill file\n" | |
1574 | " -C, -- report statistics in a machine parsable format\n" | |
1575 | " -q, -- quiet mode, do not show I/O statistics\n" | |
5ceb7765 | 1576 | " -z, -- write zeroes using blk_aio_write_zeroes\n" |
797ac58c KW |
1577 | "\n"); |
1578 | } | |
1579 | ||
4c7b7e9b | 1580 | static int aio_write_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1581 | |
1582 | static const cmdinfo_t aio_write_cmd = { | |
1583 | .name = "aio_write", | |
1584 | .cfunc = aio_write_f, | |
1585 | .argmin = 2, | |
1586 | .argmax = -1, | |
5ceb7765 | 1587 | .args = "[-Cqz] [-P pattern ] off len [len..]", |
797ac58c KW |
1588 | .oneline = "asynchronously writes a number of bytes", |
1589 | .help = aio_write_help, | |
1590 | }; | |
1591 | ||
4c7b7e9b | 1592 | static int aio_write_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1593 | { |
1594 | int nr_iov, c; | |
1595 | int pattern = 0xcd; | |
1596 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); | |
1597 | ||
4c7b7e9b | 1598 | ctx->blk = blk; |
5ceb7765 | 1599 | while ((c = getopt(argc, argv, "CqP:z")) != -1) { |
797ac58c KW |
1600 | switch (c) { |
1601 | case 'C': | |
1602 | ctx->Cflag = 1; | |
1603 | break; | |
1604 | case 'q': | |
1605 | ctx->qflag = 1; | |
1606 | break; | |
1607 | case 'P': | |
1608 | pattern = parse_pattern(optarg); | |
1609 | if (pattern < 0) { | |
1610 | g_free(ctx); | |
1611 | return 0; | |
1612 | } | |
1613 | break; | |
5ceb7765 KW |
1614 | case 'z': |
1615 | ctx->zflag = 1; | |
1616 | break; | |
797ac58c KW |
1617 | default: |
1618 | g_free(ctx); | |
c2cdf5c5 | 1619 | return qemuio_command_usage(&aio_write_cmd); |
797ac58c KW |
1620 | } |
1621 | } | |
1622 | ||
1623 | if (optind > argc - 2) { | |
1624 | g_free(ctx); | |
c2cdf5c5 | 1625 | return qemuio_command_usage(&aio_write_cmd); |
797ac58c KW |
1626 | } |
1627 | ||
5ceb7765 KW |
1628 | if (ctx->zflag && optind != argc - 2) { |
1629 | printf("-z supports only a single length parameter\n"); | |
1630 | g_free(ctx); | |
1631 | return 0; | |
1632 | } | |
1633 | ||
1634 | if (ctx->zflag && ctx->Pflag) { | |
1635 | printf("-z and -P cannot be specified at the same time\n"); | |
1636 | g_free(ctx); | |
1637 | return 0; | |
1638 | } | |
1639 | ||
797ac58c KW |
1640 | ctx->offset = cvtnum(argv[optind]); |
1641 | if (ctx->offset < 0) { | |
a9ecfa00 | 1642 | print_cvtnum_err(ctx->offset, argv[optind]); |
797ac58c KW |
1643 | g_free(ctx); |
1644 | return 0; | |
1645 | } | |
1646 | optind++; | |
1647 | ||
1648 | if (ctx->offset & 0x1ff) { | |
1649 | printf("offset %" PRId64 " is not sector aligned\n", | |
1650 | ctx->offset); | |
556c2b60 | 1651 | block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); |
797ac58c KW |
1652 | g_free(ctx); |
1653 | return 0; | |
1654 | } | |
1655 | ||
5ceb7765 KW |
1656 | if (ctx->zflag) { |
1657 | int64_t count = cvtnum(argv[optind]); | |
1658 | if (count < 0) { | |
1659 | print_cvtnum_err(count, argv[optind]); | |
0e01b76e | 1660 | g_free(ctx); |
5ceb7765 KW |
1661 | return 0; |
1662 | } | |
797ac58c | 1663 | |
5ceb7765 | 1664 | ctx->qiov.size = count; |
983a1600 | 1665 | blk_aio_write_zeroes(blk, ctx->offset, count, 0, aio_write_done, ctx); |
5ceb7765 KW |
1666 | } else { |
1667 | nr_iov = argc - optind; | |
1668 | ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, | |
1669 | pattern); | |
1670 | if (ctx->buf == NULL) { | |
1671 | block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); | |
1672 | g_free(ctx); | |
1673 | return 0; | |
1674 | } | |
1675 | ||
1676 | gettimeofday(&ctx->t1, NULL); | |
1677 | block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, | |
1678 | BLOCK_ACCT_WRITE); | |
1679 | ||
7b3f9712 | 1680 | blk_aio_pwritev(blk, ctx->offset, &ctx->qiov, 0, aio_write_done, ctx); |
5ceb7765 | 1681 | } |
797ac58c KW |
1682 | return 0; |
1683 | } | |
1684 | ||
4c7b7e9b | 1685 | static int aio_flush_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1686 | { |
556c2b60 AG |
1687 | BlockAcctCookie cookie; |
1688 | block_acct_start(blk_get_stats(blk), &cookie, 0, BLOCK_ACCT_FLUSH); | |
4c7b7e9b | 1689 | blk_drain_all(); |
556c2b60 | 1690 | block_acct_done(blk_get_stats(blk), &cookie); |
797ac58c KW |
1691 | return 0; |
1692 | } | |
1693 | ||
1694 | static const cmdinfo_t aio_flush_cmd = { | |
1695 | .name = "aio_flush", | |
1696 | .cfunc = aio_flush_f, | |
1697 | .oneline = "completes all outstanding aio requests" | |
1698 | }; | |
1699 | ||
4c7b7e9b | 1700 | static int flush_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1701 | { |
4c7b7e9b | 1702 | blk_flush(blk); |
797ac58c KW |
1703 | return 0; |
1704 | } | |
1705 | ||
1706 | static const cmdinfo_t flush_cmd = { | |
1707 | .name = "flush", | |
1708 | .altname = "f", | |
1709 | .cfunc = flush_f, | |
1710 | .oneline = "flush all in-core file state to disk", | |
1711 | }; | |
1712 | ||
4c7b7e9b | 1713 | static int truncate_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1714 | { |
1715 | int64_t offset; | |
1716 | int ret; | |
1717 | ||
1718 | offset = cvtnum(argv[1]); | |
1719 | if (offset < 0) { | |
a9ecfa00 | 1720 | print_cvtnum_err(offset, argv[1]); |
797ac58c KW |
1721 | return 0; |
1722 | } | |
1723 | ||
4c7b7e9b | 1724 | ret = blk_truncate(blk, offset); |
797ac58c KW |
1725 | if (ret < 0) { |
1726 | printf("truncate: %s\n", strerror(-ret)); | |
1727 | return 0; | |
1728 | } | |
1729 | ||
1730 | return 0; | |
1731 | } | |
1732 | ||
1733 | static const cmdinfo_t truncate_cmd = { | |
1734 | .name = "truncate", | |
1735 | .altname = "t", | |
1736 | .cfunc = truncate_f, | |
1737 | .argmin = 1, | |
1738 | .argmax = 1, | |
1739 | .args = "off", | |
1740 | .oneline = "truncates the current file at the given offset", | |
1741 | }; | |
1742 | ||
4c7b7e9b | 1743 | static int length_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1744 | { |
1745 | int64_t size; | |
1746 | char s1[64]; | |
1747 | ||
4c7b7e9b | 1748 | size = blk_getlength(blk); |
797ac58c KW |
1749 | if (size < 0) { |
1750 | printf("getlength: %s\n", strerror(-size)); | |
1751 | return 0; | |
1752 | } | |
1753 | ||
1754 | cvtstr(size, s1, sizeof(s1)); | |
1755 | printf("%s\n", s1); | |
1756 | return 0; | |
1757 | } | |
1758 | ||
1759 | ||
1760 | static const cmdinfo_t length_cmd = { | |
1761 | .name = "length", | |
1762 | .altname = "l", | |
1763 | .cfunc = length_f, | |
1764 | .oneline = "gets the length of the current file", | |
1765 | }; | |
1766 | ||
1767 | ||
4c7b7e9b | 1768 | static int info_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1769 | { |
4c7b7e9b | 1770 | BlockDriverState *bs = blk_bs(blk); |
797ac58c | 1771 | BlockDriverInfo bdi; |
a8d8ecb7 | 1772 | ImageInfoSpecific *spec_info; |
797ac58c KW |
1773 | char s1[64], s2[64]; |
1774 | int ret; | |
1775 | ||
1776 | if (bs->drv && bs->drv->format_name) { | |
1777 | printf("format name: %s\n", bs->drv->format_name); | |
1778 | } | |
1779 | if (bs->drv && bs->drv->protocol_name) { | |
1780 | printf("format name: %s\n", bs->drv->protocol_name); | |
1781 | } | |
1782 | ||
1783 | ret = bdrv_get_info(bs, &bdi); | |
1784 | if (ret) { | |
1785 | return 0; | |
1786 | } | |
1787 | ||
1788 | cvtstr(bdi.cluster_size, s1, sizeof(s1)); | |
1789 | cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); | |
1790 | ||
1791 | printf("cluster size: %s\n", s1); | |
1792 | printf("vm state offset: %s\n", s2); | |
1793 | ||
a8d8ecb7 HR |
1794 | spec_info = bdrv_get_specific_info(bs); |
1795 | if (spec_info) { | |
1796 | printf("Format specific information:\n"); | |
1797 | bdrv_image_info_specific_dump(fprintf, stdout, spec_info); | |
1798 | qapi_free_ImageInfoSpecific(spec_info); | |
1799 | } | |
1800 | ||
797ac58c KW |
1801 | return 0; |
1802 | } | |
1803 | ||
1804 | ||
1805 | ||
1806 | static const cmdinfo_t info_cmd = { | |
1807 | .name = "info", | |
1808 | .altname = "i", | |
1809 | .cfunc = info_f, | |
1810 | .oneline = "prints information about the current file", | |
1811 | }; | |
1812 | ||
1813 | static void discard_help(void) | |
1814 | { | |
1815 | printf( | |
1816 | "\n" | |
1817 | " discards a range of bytes from the given offset\n" | |
1818 | "\n" | |
1819 | " Example:\n" | |
1820 | " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" | |
1821 | "\n" | |
1822 | " Discards a segment of the currently open file.\n" | |
1823 | " -C, -- report statistics in a machine parsable format\n" | |
1824 | " -q, -- quiet mode, do not show I/O statistics\n" | |
1825 | "\n"); | |
1826 | } | |
1827 | ||
4c7b7e9b | 1828 | static int discard_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1829 | |
1830 | static const cmdinfo_t discard_cmd = { | |
1831 | .name = "discard", | |
1832 | .altname = "d", | |
1833 | .cfunc = discard_f, | |
1834 | .argmin = 2, | |
1835 | .argmax = -1, | |
1836 | .args = "[-Cq] off len", | |
1837 | .oneline = "discards a number of bytes at a specified offset", | |
1838 | .help = discard_help, | |
1839 | }; | |
1840 | ||
4c7b7e9b | 1841 | static int discard_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1842 | { |
1843 | struct timeval t1, t2; | |
1844 | int Cflag = 0, qflag = 0; | |
1845 | int c, ret; | |
9b0beaf3 | 1846 | int64_t offset, count; |
797ac58c | 1847 | |
b062ad86 | 1848 | while ((c = getopt(argc, argv, "Cq")) != -1) { |
797ac58c KW |
1849 | switch (c) { |
1850 | case 'C': | |
1851 | Cflag = 1; | |
1852 | break; | |
1853 | case 'q': | |
1854 | qflag = 1; | |
1855 | break; | |
1856 | default: | |
c2cdf5c5 | 1857 | return qemuio_command_usage(&discard_cmd); |
797ac58c KW |
1858 | } |
1859 | } | |
1860 | ||
1861 | if (optind != argc - 2) { | |
c2cdf5c5 | 1862 | return qemuio_command_usage(&discard_cmd); |
797ac58c KW |
1863 | } |
1864 | ||
1865 | offset = cvtnum(argv[optind]); | |
1866 | if (offset < 0) { | |
a9ecfa00 | 1867 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
1868 | return 0; |
1869 | } | |
1870 | ||
1871 | optind++; | |
1872 | count = cvtnum(argv[optind]); | |
1873 | if (count < 0) { | |
a9ecfa00 | 1874 | print_cvtnum_err(count, argv[optind]); |
797ac58c | 1875 | return 0; |
9b0beaf3 JS |
1876 | } else if (count >> BDRV_SECTOR_BITS > INT_MAX) { |
1877 | printf("length cannot exceed %"PRIu64", given %s\n", | |
1878 | (uint64_t)INT_MAX << BDRV_SECTOR_BITS, | |
1879 | argv[optind]); | |
1880 | return 0; | |
797ac58c KW |
1881 | } |
1882 | ||
1883 | gettimeofday(&t1, NULL); | |
4c7b7e9b HR |
1884 | ret = blk_discard(blk, offset >> BDRV_SECTOR_BITS, |
1885 | count >> BDRV_SECTOR_BITS); | |
797ac58c KW |
1886 | gettimeofday(&t2, NULL); |
1887 | ||
1888 | if (ret < 0) { | |
1889 | printf("discard failed: %s\n", strerror(-ret)); | |
1890 | goto out; | |
1891 | } | |
1892 | ||
1893 | /* Finally, report back -- -C gives a parsable format */ | |
1894 | if (!qflag) { | |
1895 | t2 = tsub(t2, t1); | |
1896 | print_report("discard", &t2, offset, count, count, 1, Cflag); | |
1897 | } | |
1898 | ||
1899 | out: | |
1900 | return 0; | |
1901 | } | |
1902 | ||
4c7b7e9b | 1903 | static int alloc_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1904 | { |
4c7b7e9b | 1905 | BlockDriverState *bs = blk_bs(blk); |
9b0beaf3 | 1906 | int64_t offset, sector_num, nb_sectors, remaining; |
797ac58c | 1907 | char s1[64]; |
9b0beaf3 JS |
1908 | int num, ret; |
1909 | int64_t sum_alloc; | |
797ac58c KW |
1910 | |
1911 | offset = cvtnum(argv[1]); | |
1912 | if (offset < 0) { | |
a9ecfa00 | 1913 | print_cvtnum_err(offset, argv[1]); |
797ac58c KW |
1914 | return 0; |
1915 | } else if (offset & 0x1ff) { | |
1916 | printf("offset %" PRId64 " is not sector aligned\n", | |
1917 | offset); | |
1918 | return 0; | |
1919 | } | |
1920 | ||
1921 | if (argc == 3) { | |
1922 | nb_sectors = cvtnum(argv[2]); | |
1923 | if (nb_sectors < 0) { | |
a9ecfa00 | 1924 | print_cvtnum_err(nb_sectors, argv[2]); |
797ac58c | 1925 | return 0; |
9b0beaf3 JS |
1926 | } else if (nb_sectors > INT_MAX) { |
1927 | printf("length argument cannot exceed %d, given %s\n", | |
1928 | INT_MAX, argv[2]); | |
1929 | return 0; | |
797ac58c KW |
1930 | } |
1931 | } else { | |
1932 | nb_sectors = 1; | |
1933 | } | |
1934 | ||
1935 | remaining = nb_sectors; | |
1936 | sum_alloc = 0; | |
1937 | sector_num = offset >> 9; | |
1938 | while (remaining) { | |
1939 | ret = bdrv_is_allocated(bs, sector_num, remaining, &num); | |
d663640c PB |
1940 | if (ret < 0) { |
1941 | printf("is_allocated failed: %s\n", strerror(-ret)); | |
1942 | return 0; | |
1943 | } | |
797ac58c KW |
1944 | sector_num += num; |
1945 | remaining -= num; | |
1946 | if (ret) { | |
1947 | sum_alloc += num; | |
1948 | } | |
1949 | if (num == 0) { | |
1950 | nb_sectors -= remaining; | |
1951 | remaining = 0; | |
1952 | } | |
1953 | } | |
1954 | ||
1955 | cvtstr(offset, s1, sizeof(s1)); | |
1956 | ||
9b0beaf3 | 1957 | printf("%"PRId64"/%"PRId64" sectors allocated at offset %s\n", |
797ac58c KW |
1958 | sum_alloc, nb_sectors, s1); |
1959 | return 0; | |
1960 | } | |
1961 | ||
1962 | static const cmdinfo_t alloc_cmd = { | |
1963 | .name = "alloc", | |
1964 | .altname = "a", | |
1965 | .argmin = 1, | |
1966 | .argmax = 2, | |
1967 | .cfunc = alloc_f, | |
1968 | .args = "off [sectors]", | |
1969 | .oneline = "checks if a sector is present in the file", | |
1970 | }; | |
1971 | ||
1972 | ||
1973 | static int map_is_allocated(BlockDriverState *bs, int64_t sector_num, | |
1974 | int64_t nb_sectors, int64_t *pnum) | |
1975 | { | |
1976 | int num, num_checked; | |
1977 | int ret, firstret; | |
1978 | ||
1979 | num_checked = MIN(nb_sectors, INT_MAX); | |
1980 | ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); | |
1981 | if (ret < 0) { | |
1982 | return ret; | |
1983 | } | |
1984 | ||
1985 | firstret = ret; | |
1986 | *pnum = num; | |
1987 | ||
1988 | while (nb_sectors > 0 && ret == firstret) { | |
1989 | sector_num += num; | |
1990 | nb_sectors -= num; | |
1991 | ||
1992 | num_checked = MIN(nb_sectors, INT_MAX); | |
1993 | ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); | |
4b25bbc4 | 1994 | if (ret == firstret && num) { |
797ac58c KW |
1995 | *pnum += num; |
1996 | } else { | |
1997 | break; | |
1998 | } | |
1999 | } | |
2000 | ||
2001 | return firstret; | |
2002 | } | |
2003 | ||
4c7b7e9b | 2004 | static int map_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2005 | { |
2006 | int64_t offset; | |
4c7b7e9b | 2007 | int64_t nb_sectors, total_sectors; |
797ac58c KW |
2008 | char s1[64]; |
2009 | int64_t num; | |
2010 | int ret; | |
2011 | const char *retstr; | |
2012 | ||
2013 | offset = 0; | |
4c7b7e9b HR |
2014 | total_sectors = blk_nb_sectors(blk); |
2015 | if (total_sectors < 0) { | |
2016 | error_report("Failed to query image length: %s", | |
2017 | strerror(-total_sectors)); | |
2018 | return 0; | |
2019 | } | |
2020 | ||
2021 | nb_sectors = total_sectors; | |
797ac58c KW |
2022 | |
2023 | do { | |
4c7b7e9b | 2024 | ret = map_is_allocated(blk_bs(blk), offset, nb_sectors, &num); |
797ac58c KW |
2025 | if (ret < 0) { |
2026 | error_report("Failed to get allocation status: %s", strerror(-ret)); | |
2027 | return 0; | |
4b25bbc4 HR |
2028 | } else if (!num) { |
2029 | error_report("Unexpected end of image"); | |
2030 | return 0; | |
797ac58c KW |
2031 | } |
2032 | ||
2033 | retstr = ret ? " allocated" : "not allocated"; | |
2034 | cvtstr(offset << 9ULL, s1, sizeof(s1)); | |
2035 | printf("[% 24" PRId64 "] % 8" PRId64 "/% 8" PRId64 " sectors %s " | |
2036 | "at offset %s (%d)\n", | |
2037 | offset << 9ULL, num, nb_sectors, retstr, s1, ret); | |
2038 | ||
2039 | offset += num; | |
2040 | nb_sectors -= num; | |
4c7b7e9b | 2041 | } while (offset < total_sectors); |
797ac58c KW |
2042 | |
2043 | return 0; | |
2044 | } | |
2045 | ||
2046 | static const cmdinfo_t map_cmd = { | |
2047 | .name = "map", | |
2048 | .argmin = 0, | |
2049 | .argmax = 0, | |
2050 | .cfunc = map_f, | |
2051 | .args = "", | |
2052 | .oneline = "prints the allocated areas of a file", | |
2053 | }; | |
2054 | ||
5bbd2e59 KW |
2055 | static void reopen_help(void) |
2056 | { | |
2057 | printf( | |
2058 | "\n" | |
2059 | " Changes the open options of an already opened image\n" | |
2060 | "\n" | |
2061 | " Example:\n" | |
2062 | " 'reopen -o lazy-refcounts=on' - activates lazy refcount writeback on a qcow2 image\n" | |
2063 | "\n" | |
2064 | " -r, -- Reopen the image read-only\n" | |
2065 | " -c, -- Change the cache mode to the given value\n" | |
2066 | " -o, -- Changes block driver options (cf. 'open' command)\n" | |
2067 | "\n"); | |
2068 | } | |
2069 | ||
2070 | static int reopen_f(BlockBackend *blk, int argc, char **argv); | |
2071 | ||
2072 | static QemuOptsList reopen_opts = { | |
2073 | .name = "reopen", | |
2074 | .merge_lists = true, | |
2075 | .head = QTAILQ_HEAD_INITIALIZER(reopen_opts.head), | |
2076 | .desc = { | |
2077 | /* no elements => accept any params */ | |
2078 | { /* end of list */ } | |
2079 | }, | |
2080 | }; | |
2081 | ||
2082 | static const cmdinfo_t reopen_cmd = { | |
2083 | .name = "reopen", | |
2084 | .argmin = 0, | |
2085 | .argmax = -1, | |
2086 | .cfunc = reopen_f, | |
2087 | .args = "[-r] [-c cache] [-o options]", | |
2088 | .oneline = "reopens an image with new options", | |
2089 | .help = reopen_help, | |
2090 | }; | |
2091 | ||
2092 | static int reopen_f(BlockBackend *blk, int argc, char **argv) | |
2093 | { | |
2094 | BlockDriverState *bs = blk_bs(blk); | |
2095 | QemuOpts *qopts; | |
2096 | QDict *opts; | |
2097 | int c; | |
2098 | int flags = bs->open_flags; | |
19dbecdc | 2099 | bool writethrough = !blk_enable_write_cache(blk); |
5bbd2e59 KW |
2100 | |
2101 | BlockReopenQueue *brq; | |
2102 | Error *local_err = NULL; | |
2103 | ||
2104 | while ((c = getopt(argc, argv, "c:o:r")) != -1) { | |
2105 | switch (c) { | |
2106 | case 'c': | |
19dbecdc | 2107 | if (bdrv_parse_cache_mode(optarg, &flags, &writethrough) < 0) { |
5bbd2e59 KW |
2108 | error_report("Invalid cache option: %s", optarg); |
2109 | return 0; | |
2110 | } | |
2111 | break; | |
2112 | case 'o': | |
2113 | if (!qemu_opts_parse_noisily(&reopen_opts, optarg, 0)) { | |
2114 | qemu_opts_reset(&reopen_opts); | |
2115 | return 0; | |
2116 | } | |
2117 | break; | |
2118 | case 'r': | |
2119 | flags &= ~BDRV_O_RDWR; | |
2120 | break; | |
2121 | default: | |
2122 | qemu_opts_reset(&reopen_opts); | |
2123 | return qemuio_command_usage(&reopen_cmd); | |
2124 | } | |
2125 | } | |
2126 | ||
2127 | if (optind != argc) { | |
2128 | qemu_opts_reset(&reopen_opts); | |
2129 | return qemuio_command_usage(&reopen_cmd); | |
2130 | } | |
2131 | ||
19dbecdc KW |
2132 | if (writethrough != blk_enable_write_cache(blk) && |
2133 | blk_get_attached_dev(blk)) | |
2134 | { | |
2135 | error_report("Cannot change cache.writeback: Device attached"); | |
2136 | qemu_opts_reset(&reopen_opts); | |
2137 | return 0; | |
2138 | } | |
2139 | ||
5bbd2e59 KW |
2140 | qopts = qemu_opts_find(&reopen_opts, NULL); |
2141 | opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : NULL; | |
2142 | qemu_opts_reset(&reopen_opts); | |
2143 | ||
2144 | brq = bdrv_reopen_queue(NULL, bs, opts, flags); | |
2145 | bdrv_reopen_multiple(brq, &local_err); | |
2146 | if (local_err) { | |
2147 | error_report_err(local_err); | |
19dbecdc KW |
2148 | } else { |
2149 | blk_set_enable_write_cache(blk, !writethrough); | |
5bbd2e59 KW |
2150 | } |
2151 | ||
2152 | return 0; | |
2153 | } | |
2154 | ||
4c7b7e9b | 2155 | static int break_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2156 | { |
2157 | int ret; | |
2158 | ||
4c7b7e9b | 2159 | ret = bdrv_debug_breakpoint(blk_bs(blk), argv[1], argv[2]); |
797ac58c KW |
2160 | if (ret < 0) { |
2161 | printf("Could not set breakpoint: %s\n", strerror(-ret)); | |
2162 | } | |
2163 | ||
2164 | return 0; | |
2165 | } | |
2166 | ||
4c7b7e9b | 2167 | static int remove_break_f(BlockBackend *blk, int argc, char **argv) |
4cc70e93 FZ |
2168 | { |
2169 | int ret; | |
2170 | ||
4c7b7e9b | 2171 | ret = bdrv_debug_remove_breakpoint(blk_bs(blk), argv[1]); |
4cc70e93 FZ |
2172 | if (ret < 0) { |
2173 | printf("Could not remove breakpoint %s: %s\n", argv[1], strerror(-ret)); | |
2174 | } | |
2175 | ||
2176 | return 0; | |
2177 | } | |
2178 | ||
797ac58c KW |
2179 | static const cmdinfo_t break_cmd = { |
2180 | .name = "break", | |
2181 | .argmin = 2, | |
2182 | .argmax = 2, | |
2183 | .cfunc = break_f, | |
2184 | .args = "event tag", | |
2185 | .oneline = "sets a breakpoint on event and tags the stopped " | |
2186 | "request as tag", | |
2187 | }; | |
2188 | ||
4cc70e93 FZ |
2189 | static const cmdinfo_t remove_break_cmd = { |
2190 | .name = "remove_break", | |
2191 | .argmin = 1, | |
2192 | .argmax = 1, | |
2193 | .cfunc = remove_break_f, | |
2194 | .args = "tag", | |
2195 | .oneline = "remove a breakpoint by tag", | |
2196 | }; | |
2197 | ||
4c7b7e9b | 2198 | static int resume_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2199 | { |
2200 | int ret; | |
2201 | ||
4c7b7e9b | 2202 | ret = bdrv_debug_resume(blk_bs(blk), argv[1]); |
797ac58c KW |
2203 | if (ret < 0) { |
2204 | printf("Could not resume request: %s\n", strerror(-ret)); | |
2205 | } | |
2206 | ||
2207 | return 0; | |
2208 | } | |
2209 | ||
2210 | static const cmdinfo_t resume_cmd = { | |
2211 | .name = "resume", | |
2212 | .argmin = 1, | |
2213 | .argmax = 1, | |
2214 | .cfunc = resume_f, | |
2215 | .args = "tag", | |
2216 | .oneline = "resumes the request tagged as tag", | |
2217 | }; | |
2218 | ||
4c7b7e9b | 2219 | static int wait_break_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 2220 | { |
4c7b7e9b HR |
2221 | while (!bdrv_debug_is_suspended(blk_bs(blk), argv[1])) { |
2222 | aio_poll(blk_get_aio_context(blk), true); | |
797ac58c KW |
2223 | } |
2224 | ||
2225 | return 0; | |
2226 | } | |
2227 | ||
2228 | static const cmdinfo_t wait_break_cmd = { | |
2229 | .name = "wait_break", | |
2230 | .argmin = 1, | |
2231 | .argmax = 1, | |
2232 | .cfunc = wait_break_f, | |
2233 | .args = "tag", | |
2234 | .oneline = "waits for the suspension of a request", | |
2235 | }; | |
2236 | ||
4c7b7e9b | 2237 | static int abort_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2238 | { |
2239 | abort(); | |
2240 | } | |
2241 | ||
2242 | static const cmdinfo_t abort_cmd = { | |
2243 | .name = "abort", | |
2244 | .cfunc = abort_f, | |
2245 | .flags = CMD_NOFILE_OK, | |
2246 | .oneline = "simulate a program crash using abort(3)", | |
2247 | }; | |
2248 | ||
0e82dc7b HR |
2249 | static void sigraise_help(void) |
2250 | { | |
2251 | printf( | |
2252 | "\n" | |
2253 | " raises the given signal\n" | |
2254 | "\n" | |
2255 | " Example:\n" | |
2256 | " 'sigraise %i' - raises SIGTERM\n" | |
2257 | "\n" | |
2258 | " Invokes raise(signal), where \"signal\" is the mandatory integer argument\n" | |
2259 | " given to sigraise.\n" | |
2260 | "\n", SIGTERM); | |
2261 | } | |
2262 | ||
4c7b7e9b | 2263 | static int sigraise_f(BlockBackend *blk, int argc, char **argv); |
0e82dc7b HR |
2264 | |
2265 | static const cmdinfo_t sigraise_cmd = { | |
2266 | .name = "sigraise", | |
2267 | .cfunc = sigraise_f, | |
2268 | .argmin = 1, | |
2269 | .argmax = 1, | |
2270 | .flags = CMD_NOFILE_OK, | |
2271 | .args = "signal", | |
2272 | .oneline = "raises a signal", | |
2273 | .help = sigraise_help, | |
2274 | }; | |
2275 | ||
4c7b7e9b | 2276 | static int sigraise_f(BlockBackend *blk, int argc, char **argv) |
0e82dc7b | 2277 | { |
9b0beaf3 | 2278 | int64_t sig = cvtnum(argv[1]); |
0e82dc7b | 2279 | if (sig < 0) { |
a9ecfa00 | 2280 | print_cvtnum_err(sig, argv[1]); |
0e82dc7b | 2281 | return 0; |
9b0beaf3 JS |
2282 | } else if (sig > NSIG) { |
2283 | printf("signal argument '%s' is too large to be a valid signal\n", | |
2284 | argv[1]); | |
2285 | return 0; | |
0e82dc7b HR |
2286 | } |
2287 | ||
2288 | /* Using raise() to kill this process does not necessarily flush all open | |
2289 | * streams. At least stdout and stderr (although the latter should be | |
2290 | * non-buffered anyway) should be flushed, though. */ | |
2291 | fflush(stdout); | |
2292 | fflush(stderr); | |
2293 | ||
2294 | raise(sig); | |
2295 | return 0; | |
2296 | } | |
2297 | ||
cd33d02a KW |
2298 | static void sleep_cb(void *opaque) |
2299 | { | |
2300 | bool *expired = opaque; | |
2301 | *expired = true; | |
2302 | } | |
2303 | ||
4c7b7e9b | 2304 | static int sleep_f(BlockBackend *blk, int argc, char **argv) |
cd33d02a KW |
2305 | { |
2306 | char *endptr; | |
2307 | long ms; | |
2308 | struct QEMUTimer *timer; | |
2309 | bool expired = false; | |
2310 | ||
2311 | ms = strtol(argv[1], &endptr, 0); | |
2312 | if (ms < 0 || *endptr != '\0') { | |
2313 | printf("%s is not a valid number\n", argv[1]); | |
2314 | return 0; | |
2315 | } | |
2316 | ||
2317 | timer = timer_new_ns(QEMU_CLOCK_HOST, sleep_cb, &expired); | |
2318 | timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_HOST) + SCALE_MS * ms); | |
2319 | ||
2320 | while (!expired) { | |
2321 | main_loop_wait(false); | |
2322 | } | |
2323 | ||
2324 | timer_free(timer); | |
2325 | ||
2326 | return 0; | |
2327 | } | |
2328 | ||
2329 | static const cmdinfo_t sleep_cmd = { | |
2330 | .name = "sleep", | |
2331 | .argmin = 1, | |
2332 | .argmax = 1, | |
2333 | .cfunc = sleep_f, | |
2334 | .flags = CMD_NOFILE_OK, | |
2335 | .oneline = "waits for the given value in milliseconds", | |
2336 | }; | |
2337 | ||
f18a834a KW |
2338 | static void help_oneline(const char *cmd, const cmdinfo_t *ct) |
2339 | { | |
2340 | if (cmd) { | |
2341 | printf("%s ", cmd); | |
2342 | } else { | |
2343 | printf("%s ", ct->name); | |
2344 | if (ct->altname) { | |
2345 | printf("(or %s) ", ct->altname); | |
2346 | } | |
2347 | } | |
2348 | ||
2349 | if (ct->args) { | |
2350 | printf("%s ", ct->args); | |
2351 | } | |
2352 | printf("-- %s\n", ct->oneline); | |
2353 | } | |
2354 | ||
2355 | static void help_onecmd(const char *cmd, const cmdinfo_t *ct) | |
2356 | { | |
2357 | help_oneline(cmd, ct); | |
2358 | if (ct->help) { | |
2359 | ct->help(); | |
2360 | } | |
2361 | } | |
2362 | ||
2363 | static void help_all(void) | |
2364 | { | |
2365 | const cmdinfo_t *ct; | |
2366 | ||
2367 | for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { | |
2368 | help_oneline(ct->name, ct); | |
2369 | } | |
2370 | printf("\nUse 'help commandname' for extended help.\n"); | |
2371 | } | |
2372 | ||
4c7b7e9b | 2373 | static int help_f(BlockBackend *blk, int argc, char **argv) |
f18a834a KW |
2374 | { |
2375 | const cmdinfo_t *ct; | |
2376 | ||
2377 | if (argc == 1) { | |
2378 | help_all(); | |
2379 | return 0; | |
2380 | } | |
2381 | ||
2382 | ct = find_command(argv[1]); | |
2383 | if (ct == NULL) { | |
2384 | printf("command %s not found\n", argv[1]); | |
2385 | return 0; | |
2386 | } | |
2387 | ||
2388 | help_onecmd(argv[1], ct); | |
2389 | return 0; | |
2390 | } | |
2391 | ||
2392 | static const cmdinfo_t help_cmd = { | |
2393 | .name = "help", | |
2394 | .altname = "?", | |
2395 | .cfunc = help_f, | |
2396 | .argmin = 0, | |
2397 | .argmax = 1, | |
2398 | .flags = CMD_FLAG_GLOBAL, | |
2399 | .args = "[command]", | |
2400 | .oneline = "help for one or all commands", | |
2401 | }; | |
2402 | ||
4c7b7e9b | 2403 | bool qemuio_command(BlockBackend *blk, const char *cmd) |
dd583296 KW |
2404 | { |
2405 | char *input; | |
2406 | const cmdinfo_t *ct; | |
2407 | char **v; | |
2408 | int c; | |
2409 | bool done = false; | |
2410 | ||
2411 | input = g_strdup(cmd); | |
2412 | v = breakline(input, &c); | |
2413 | if (c) { | |
2414 | ct = find_command(v[0]); | |
2415 | if (ct) { | |
4c7b7e9b | 2416 | done = command(blk, ct, c, v); |
dd583296 KW |
2417 | } else { |
2418 | fprintf(stderr, "command \"%s\" not found\n", v[0]); | |
2419 | } | |
2420 | } | |
2421 | g_free(input); | |
2422 | g_free(v); | |
2423 | ||
2424 | return done; | |
2425 | } | |
2426 | ||
797ac58c KW |
2427 | static void __attribute((constructor)) init_qemuio_commands(void) |
2428 | { | |
2429 | /* initialize commands */ | |
c2cdf5c5 KW |
2430 | qemuio_add_command(&help_cmd); |
2431 | qemuio_add_command(&read_cmd); | |
2432 | qemuio_add_command(&readv_cmd); | |
2433 | qemuio_add_command(&write_cmd); | |
2434 | qemuio_add_command(&writev_cmd); | |
2435 | qemuio_add_command(&multiwrite_cmd); | |
2436 | qemuio_add_command(&aio_read_cmd); | |
2437 | qemuio_add_command(&aio_write_cmd); | |
2438 | qemuio_add_command(&aio_flush_cmd); | |
2439 | qemuio_add_command(&flush_cmd); | |
2440 | qemuio_add_command(&truncate_cmd); | |
2441 | qemuio_add_command(&length_cmd); | |
2442 | qemuio_add_command(&info_cmd); | |
2443 | qemuio_add_command(&discard_cmd); | |
2444 | qemuio_add_command(&alloc_cmd); | |
2445 | qemuio_add_command(&map_cmd); | |
5bbd2e59 | 2446 | qemuio_add_command(&reopen_cmd); |
c2cdf5c5 | 2447 | qemuio_add_command(&break_cmd); |
4cc70e93 | 2448 | qemuio_add_command(&remove_break_cmd); |
c2cdf5c5 KW |
2449 | qemuio_add_command(&resume_cmd); |
2450 | qemuio_add_command(&wait_break_cmd); | |
2451 | qemuio_add_command(&abort_cmd); | |
cd33d02a | 2452 | qemuio_add_command(&sleep_cmd); |
0e82dc7b | 2453 | qemuio_add_command(&sigraise_cmd); |
797ac58c | 2454 | } |