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Commit | Line | Data |
---|---|---|
797ac58c KW |
1 | /* |
2 | * Command line utility to exercise the QEMU I/O path. | |
3 | * | |
093ea232 | 4 | * Copyright (C) 2009-2016 Red Hat, Inc. |
797ac58c KW |
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, | |
dc38852a | 348 | int64_t count, int64_t total, int cnt, bool 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 | ||
797ac58c KW |
398 | sizes[i] = len; |
399 | count += len; | |
400 | } | |
401 | ||
402 | qemu_iovec_init(qiov, nr_iov); | |
403 | ||
4c7b7e9b | 404 | buf = p = qemu_io_alloc(blk, count, pattern); |
797ac58c KW |
405 | |
406 | for (i = 0; i < nr_iov; i++) { | |
407 | qemu_iovec_add(qiov, p, sizes[i]); | |
408 | p += sizes[i]; | |
409 | } | |
410 | ||
411 | fail: | |
412 | g_free(sizes); | |
413 | return buf; | |
414 | } | |
415 | ||
9b0beaf3 JS |
416 | static int do_pread(BlockBackend *blk, char *buf, int64_t offset, |
417 | int64_t count, int64_t *total) | |
797ac58c | 418 | { |
9b0beaf3 JS |
419 | if (count > INT_MAX) { |
420 | return -ERANGE; | |
421 | } | |
422 | ||
4c7b7e9b | 423 | *total = blk_pread(blk, offset, (uint8_t *)buf, count); |
797ac58c KW |
424 | if (*total < 0) { |
425 | return *total; | |
426 | } | |
427 | return 1; | |
428 | } | |
429 | ||
9b0beaf3 | 430 | static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset, |
770e0e0e | 431 | int64_t count, int flags, int64_t *total) |
797ac58c | 432 | { |
9b0beaf3 JS |
433 | if (count > INT_MAX) { |
434 | return -ERANGE; | |
435 | } | |
436 | ||
770e0e0e | 437 | *total = blk_pwrite(blk, offset, (uint8_t *)buf, count, flags); |
797ac58c KW |
438 | if (*total < 0) { |
439 | return *total; | |
440 | } | |
441 | return 1; | |
442 | } | |
443 | ||
444 | typedef struct { | |
4c7b7e9b | 445 | BlockBackend *blk; |
797ac58c | 446 | int64_t offset; |
9b0beaf3 JS |
447 | int64_t count; |
448 | int64_t *total; | |
770e0e0e | 449 | int flags; |
797ac58c KW |
450 | int ret; |
451 | bool done; | |
452 | } CoWriteZeroes; | |
453 | ||
454 | static void coroutine_fn co_write_zeroes_entry(void *opaque) | |
455 | { | |
456 | CoWriteZeroes *data = opaque; | |
457 | ||
770e0e0e EB |
458 | data->ret = blk_co_write_zeroes(data->blk, data->offset, data->count, |
459 | data->flags); | |
797ac58c KW |
460 | data->done = true; |
461 | if (data->ret < 0) { | |
462 | *data->total = data->ret; | |
463 | return; | |
464 | } | |
465 | ||
466 | *data->total = data->count; | |
467 | } | |
468 | ||
9b0beaf3 | 469 | static int do_co_write_zeroes(BlockBackend *blk, int64_t offset, int64_t count, |
770e0e0e | 470 | int flags, int64_t *total) |
797ac58c KW |
471 | { |
472 | Coroutine *co; | |
473 | CoWriteZeroes data = { | |
4c7b7e9b | 474 | .blk = blk, |
797ac58c KW |
475 | .offset = offset, |
476 | .count = count, | |
477 | .total = total, | |
770e0e0e | 478 | .flags = flags, |
797ac58c KW |
479 | .done = false, |
480 | }; | |
481 | ||
9b0beaf3 JS |
482 | if (count >> BDRV_SECTOR_BITS > INT_MAX) { |
483 | return -ERANGE; | |
484 | } | |
485 | ||
797ac58c KW |
486 | co = qemu_coroutine_create(co_write_zeroes_entry); |
487 | qemu_coroutine_enter(co, &data); | |
488 | while (!data.done) { | |
4c7b7e9b | 489 | aio_poll(blk_get_aio_context(blk), true); |
797ac58c KW |
490 | } |
491 | if (data.ret < 0) { | |
492 | return data.ret; | |
493 | } else { | |
494 | return 1; | |
495 | } | |
496 | } | |
497 | ||
4c7b7e9b | 498 | static int do_write_compressed(BlockBackend *blk, char *buf, int64_t offset, |
9b0beaf3 | 499 | int64_t count, int64_t *total) |
797ac58c KW |
500 | { |
501 | int ret; | |
502 | ||
9b0beaf3 JS |
503 | if (count >> 9 > INT_MAX) { |
504 | return -ERANGE; | |
505 | } | |
506 | ||
4c7b7e9b | 507 | ret = blk_write_compressed(blk, offset >> 9, (uint8_t *)buf, count >> 9); |
797ac58c KW |
508 | if (ret < 0) { |
509 | return ret; | |
510 | } | |
511 | *total = count; | |
512 | return 1; | |
513 | } | |
514 | ||
4c7b7e9b | 515 | static int do_load_vmstate(BlockBackend *blk, char *buf, int64_t offset, |
9b0beaf3 | 516 | int64_t count, int64_t *total) |
797ac58c | 517 | { |
9b0beaf3 JS |
518 | if (count > INT_MAX) { |
519 | return -ERANGE; | |
520 | } | |
521 | ||
4c7b7e9b | 522 | *total = blk_load_vmstate(blk, (uint8_t *)buf, offset, count); |
797ac58c KW |
523 | if (*total < 0) { |
524 | return *total; | |
525 | } | |
526 | return 1; | |
527 | } | |
528 | ||
4c7b7e9b | 529 | static int do_save_vmstate(BlockBackend *blk, char *buf, int64_t offset, |
9b0beaf3 | 530 | int64_t count, int64_t *total) |
797ac58c | 531 | { |
9b0beaf3 JS |
532 | if (count > INT_MAX) { |
533 | return -ERANGE; | |
534 | } | |
535 | ||
4c7b7e9b | 536 | *total = blk_save_vmstate(blk, (uint8_t *)buf, offset, count); |
797ac58c KW |
537 | if (*total < 0) { |
538 | return *total; | |
539 | } | |
540 | return 1; | |
541 | } | |
542 | ||
543 | #define NOT_DONE 0x7fffffff | |
544 | static void aio_rw_done(void *opaque, int ret) | |
545 | { | |
546 | *(int *)opaque = ret; | |
547 | } | |
548 | ||
4c7b7e9b | 549 | static int do_aio_readv(BlockBackend *blk, QEMUIOVector *qiov, |
797ac58c KW |
550 | int64_t offset, int *total) |
551 | { | |
552 | int async_ret = NOT_DONE; | |
553 | ||
7b3f9712 | 554 | blk_aio_preadv(blk, offset, qiov, 0, aio_rw_done, &async_ret); |
797ac58c KW |
555 | while (async_ret == NOT_DONE) { |
556 | main_loop_wait(false); | |
557 | } | |
558 | ||
559 | *total = qiov->size; | |
560 | return async_ret < 0 ? async_ret : 1; | |
561 | } | |
562 | ||
4c7b7e9b | 563 | static int do_aio_writev(BlockBackend *blk, QEMUIOVector *qiov, |
770e0e0e | 564 | int64_t offset, int flags, int *total) |
797ac58c KW |
565 | { |
566 | int async_ret = NOT_DONE; | |
567 | ||
770e0e0e | 568 | blk_aio_pwritev(blk, offset, qiov, flags, aio_rw_done, &async_ret); |
797ac58c KW |
569 | while (async_ret == NOT_DONE) { |
570 | main_loop_wait(false); | |
571 | } | |
572 | ||
573 | *total = qiov->size; | |
574 | return async_ret < 0 ? async_ret : 1; | |
575 | } | |
576 | ||
577 | struct multiwrite_async_ret { | |
578 | int num_done; | |
579 | int error; | |
580 | }; | |
581 | ||
582 | static void multiwrite_cb(void *opaque, int ret) | |
583 | { | |
584 | struct multiwrite_async_ret *async_ret = opaque; | |
585 | ||
586 | async_ret->num_done++; | |
587 | if (ret < 0) { | |
588 | async_ret->error = ret; | |
589 | } | |
590 | } | |
591 | ||
4c7b7e9b | 592 | static int do_aio_multiwrite(BlockBackend *blk, BlockRequest* reqs, |
797ac58c KW |
593 | int num_reqs, int *total) |
594 | { | |
595 | int i, ret; | |
596 | struct multiwrite_async_ret async_ret = { | |
597 | .num_done = 0, | |
598 | .error = 0, | |
599 | }; | |
600 | ||
601 | *total = 0; | |
602 | for (i = 0; i < num_reqs; i++) { | |
603 | reqs[i].cb = multiwrite_cb; | |
604 | reqs[i].opaque = &async_ret; | |
605 | *total += reqs[i].qiov->size; | |
606 | } | |
607 | ||
4c7b7e9b | 608 | ret = blk_aio_multiwrite(blk, reqs, num_reqs); |
797ac58c KW |
609 | if (ret < 0) { |
610 | return ret; | |
611 | } | |
612 | ||
613 | while (async_ret.num_done < num_reqs) { | |
614 | main_loop_wait(false); | |
615 | } | |
616 | ||
617 | return async_ret.error < 0 ? async_ret.error : 1; | |
618 | } | |
619 | ||
620 | static void read_help(void) | |
621 | { | |
622 | printf( | |
623 | "\n" | |
624 | " reads a range of bytes from the given offset\n" | |
625 | "\n" | |
626 | " Example:\n" | |
627 | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" | |
628 | "\n" | |
629 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
630 | " standard output stream (with -v option) for subsequent inspection.\n" | |
631 | " -b, -- read from the VM state rather than the virtual disk\n" | |
632 | " -C, -- report statistics in a machine parsable format\n" | |
633 | " -l, -- length for pattern verification (only with -P)\n" | |
093ea232 | 634 | " -p, -- ignored for backwards compatibility\n" |
797ac58c KW |
635 | " -P, -- use a pattern to verify read data\n" |
636 | " -q, -- quiet mode, do not show I/O statistics\n" | |
637 | " -s, -- start offset for pattern verification (only with -P)\n" | |
638 | " -v, -- dump buffer to standard output\n" | |
639 | "\n"); | |
640 | } | |
641 | ||
4c7b7e9b | 642 | static int read_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
643 | |
644 | static const cmdinfo_t read_cmd = { | |
645 | .name = "read", | |
646 | .altname = "r", | |
647 | .cfunc = read_f, | |
648 | .argmin = 2, | |
649 | .argmax = -1, | |
093ea232 | 650 | .args = "[-abCqv] [-P pattern [-s off] [-l len]] off len", |
797ac58c KW |
651 | .oneline = "reads a number of bytes at a specified offset", |
652 | .help = read_help, | |
653 | }; | |
654 | ||
4c7b7e9b | 655 | static int read_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
656 | { |
657 | struct timeval t1, t2; | |
093ea232 | 658 | bool Cflag = false, qflag = false, vflag = false; |
dc38852a | 659 | bool Pflag = false, sflag = false, lflag = false, bflag = false; |
797ac58c KW |
660 | int c, cnt; |
661 | char *buf; | |
662 | int64_t offset; | |
9b0beaf3 | 663 | int64_t count; |
797ac58c | 664 | /* Some compilers get confused and warn if this is not initialized. */ |
9b0beaf3 JS |
665 | int64_t total = 0; |
666 | int pattern = 0; | |
667 | int64_t pattern_offset = 0, pattern_count = 0; | |
797ac58c | 668 | |
b062ad86 | 669 | while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != -1) { |
797ac58c KW |
670 | switch (c) { |
671 | case 'b': | |
dc38852a | 672 | bflag = true; |
797ac58c KW |
673 | break; |
674 | case 'C': | |
dc38852a | 675 | Cflag = true; |
797ac58c KW |
676 | break; |
677 | case 'l': | |
dc38852a | 678 | lflag = true; |
797ac58c KW |
679 | pattern_count = cvtnum(optarg); |
680 | if (pattern_count < 0) { | |
a9ecfa00 | 681 | print_cvtnum_err(pattern_count, optarg); |
797ac58c KW |
682 | return 0; |
683 | } | |
684 | break; | |
685 | case 'p': | |
093ea232 | 686 | /* Ignored for backwards compatibility */ |
797ac58c KW |
687 | break; |
688 | case 'P': | |
dc38852a | 689 | Pflag = true; |
797ac58c KW |
690 | pattern = parse_pattern(optarg); |
691 | if (pattern < 0) { | |
692 | return 0; | |
693 | } | |
694 | break; | |
695 | case 'q': | |
dc38852a | 696 | qflag = true; |
797ac58c KW |
697 | break; |
698 | case 's': | |
dc38852a | 699 | sflag = true; |
797ac58c KW |
700 | pattern_offset = cvtnum(optarg); |
701 | if (pattern_offset < 0) { | |
a9ecfa00 | 702 | print_cvtnum_err(pattern_offset, optarg); |
797ac58c KW |
703 | return 0; |
704 | } | |
705 | break; | |
706 | case 'v': | |
dc38852a | 707 | vflag = true; |
797ac58c KW |
708 | break; |
709 | default: | |
c2cdf5c5 | 710 | return qemuio_command_usage(&read_cmd); |
797ac58c KW |
711 | } |
712 | } | |
713 | ||
714 | if (optind != argc - 2) { | |
c2cdf5c5 | 715 | return qemuio_command_usage(&read_cmd); |
797ac58c KW |
716 | } |
717 | ||
797ac58c KW |
718 | offset = cvtnum(argv[optind]); |
719 | if (offset < 0) { | |
a9ecfa00 | 720 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
721 | return 0; |
722 | } | |
723 | ||
724 | optind++; | |
725 | count = cvtnum(argv[optind]); | |
726 | if (count < 0) { | |
a9ecfa00 | 727 | print_cvtnum_err(count, argv[optind]); |
797ac58c | 728 | return 0; |
9b0beaf3 JS |
729 | } else if (count > SIZE_MAX) { |
730 | printf("length cannot exceed %" PRIu64 ", given %s\n", | |
731 | (uint64_t) SIZE_MAX, argv[optind]); | |
732 | return 0; | |
797ac58c KW |
733 | } |
734 | ||
735 | if (!Pflag && (lflag || sflag)) { | |
c2cdf5c5 | 736 | return qemuio_command_usage(&read_cmd); |
797ac58c KW |
737 | } |
738 | ||
739 | if (!lflag) { | |
740 | pattern_count = count - pattern_offset; | |
741 | } | |
742 | ||
743 | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { | |
744 | printf("pattern verification range exceeds end of read data\n"); | |
745 | return 0; | |
746 | } | |
747 | ||
093ea232 | 748 | if (bflag) { |
797ac58c KW |
749 | if (offset & 0x1ff) { |
750 | printf("offset %" PRId64 " is not sector aligned\n", | |
751 | offset); | |
752 | return 0; | |
753 | } | |
754 | if (count & 0x1ff) { | |
9b0beaf3 | 755 | printf("count %"PRId64" is not sector aligned\n", |
797ac58c KW |
756 | count); |
757 | return 0; | |
758 | } | |
759 | } | |
760 | ||
4c7b7e9b | 761 | buf = qemu_io_alloc(blk, count, 0xab); |
797ac58c KW |
762 | |
763 | gettimeofday(&t1, NULL); | |
7b3f9712 | 764 | if (bflag) { |
4c7b7e9b | 765 | cnt = do_load_vmstate(blk, buf, offset, count, &total); |
797ac58c | 766 | } else { |
7b3f9712 | 767 | cnt = do_pread(blk, buf, offset, count, &total); |
797ac58c KW |
768 | } |
769 | gettimeofday(&t2, NULL); | |
770 | ||
771 | if (cnt < 0) { | |
772 | printf("read failed: %s\n", strerror(-cnt)); | |
773 | goto out; | |
774 | } | |
775 | ||
776 | if (Pflag) { | |
777 | void *cmp_buf = g_malloc(pattern_count); | |
778 | memset(cmp_buf, pattern, pattern_count); | |
779 | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { | |
780 | printf("Pattern verification failed at offset %" | |
9b0beaf3 | 781 | PRId64 ", %"PRId64" bytes\n", |
797ac58c KW |
782 | offset + pattern_offset, pattern_count); |
783 | } | |
784 | g_free(cmp_buf); | |
785 | } | |
786 | ||
787 | if (qflag) { | |
788 | goto out; | |
789 | } | |
790 | ||
791 | if (vflag) { | |
792 | dump_buffer(buf, offset, count); | |
793 | } | |
794 | ||
795 | /* Finally, report back -- -C gives a parsable format */ | |
796 | t2 = tsub(t2, t1); | |
797 | print_report("read", &t2, offset, count, total, cnt, Cflag); | |
798 | ||
799 | out: | |
800 | qemu_io_free(buf); | |
801 | ||
802 | return 0; | |
803 | } | |
804 | ||
805 | static void readv_help(void) | |
806 | { | |
807 | printf( | |
808 | "\n" | |
809 | " reads a range of bytes from the given offset into multiple buffers\n" | |
810 | "\n" | |
811 | " Example:\n" | |
812 | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
813 | "\n" | |
814 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
815 | " standard output stream (with -v option) for subsequent inspection.\n" | |
816 | " Uses multiple iovec buffers if more than one byte range is specified.\n" | |
817 | " -C, -- report statistics in a machine parsable format\n" | |
818 | " -P, -- use a pattern to verify read data\n" | |
819 | " -v, -- dump buffer to standard output\n" | |
820 | " -q, -- quiet mode, do not show I/O statistics\n" | |
821 | "\n"); | |
822 | } | |
823 | ||
4c7b7e9b | 824 | static int readv_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
825 | |
826 | static const cmdinfo_t readv_cmd = { | |
827 | .name = "readv", | |
828 | .cfunc = readv_f, | |
829 | .argmin = 2, | |
830 | .argmax = -1, | |
093ea232 | 831 | .args = "[-Cqv] [-P pattern] off len [len..]", |
797ac58c KW |
832 | .oneline = "reads a number of bytes at a specified offset", |
833 | .help = readv_help, | |
834 | }; | |
835 | ||
4c7b7e9b | 836 | static int readv_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
837 | { |
838 | struct timeval t1, t2; | |
dc38852a | 839 | bool Cflag = false, qflag = false, vflag = false; |
797ac58c KW |
840 | int c, cnt; |
841 | char *buf; | |
842 | int64_t offset; | |
843 | /* Some compilers get confused and warn if this is not initialized. */ | |
844 | int total = 0; | |
845 | int nr_iov; | |
846 | QEMUIOVector qiov; | |
847 | int pattern = 0; | |
dc38852a | 848 | bool Pflag = false; |
797ac58c | 849 | |
b062ad86 | 850 | while ((c = getopt(argc, argv, "CP:qv")) != -1) { |
797ac58c KW |
851 | switch (c) { |
852 | case 'C': | |
dc38852a | 853 | Cflag = true; |
797ac58c KW |
854 | break; |
855 | case 'P': | |
dc38852a | 856 | Pflag = true; |
797ac58c KW |
857 | pattern = parse_pattern(optarg); |
858 | if (pattern < 0) { | |
859 | return 0; | |
860 | } | |
861 | break; | |
862 | case 'q': | |
dc38852a | 863 | qflag = true; |
797ac58c KW |
864 | break; |
865 | case 'v': | |
dc38852a | 866 | vflag = true; |
797ac58c KW |
867 | break; |
868 | default: | |
c2cdf5c5 | 869 | return qemuio_command_usage(&readv_cmd); |
797ac58c KW |
870 | } |
871 | } | |
872 | ||
873 | if (optind > argc - 2) { | |
c2cdf5c5 | 874 | return qemuio_command_usage(&readv_cmd); |
797ac58c KW |
875 | } |
876 | ||
877 | ||
878 | offset = cvtnum(argv[optind]); | |
879 | if (offset < 0) { | |
a9ecfa00 | 880 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
881 | return 0; |
882 | } | |
883 | optind++; | |
884 | ||
797ac58c | 885 | nr_iov = argc - optind; |
4c7b7e9b | 886 | buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, 0xab); |
797ac58c KW |
887 | if (buf == NULL) { |
888 | return 0; | |
889 | } | |
890 | ||
891 | gettimeofday(&t1, NULL); | |
4c7b7e9b | 892 | cnt = do_aio_readv(blk, &qiov, offset, &total); |
797ac58c KW |
893 | gettimeofday(&t2, NULL); |
894 | ||
895 | if (cnt < 0) { | |
896 | printf("readv failed: %s\n", strerror(-cnt)); | |
897 | goto out; | |
898 | } | |
899 | ||
900 | if (Pflag) { | |
901 | void *cmp_buf = g_malloc(qiov.size); | |
902 | memset(cmp_buf, pattern, qiov.size); | |
903 | if (memcmp(buf, cmp_buf, qiov.size)) { | |
904 | printf("Pattern verification failed at offset %" | |
905 | PRId64 ", %zd bytes\n", offset, qiov.size); | |
906 | } | |
907 | g_free(cmp_buf); | |
908 | } | |
909 | ||
910 | if (qflag) { | |
911 | goto out; | |
912 | } | |
913 | ||
914 | if (vflag) { | |
915 | dump_buffer(buf, offset, qiov.size); | |
916 | } | |
917 | ||
918 | /* Finally, report back -- -C gives a parsable format */ | |
919 | t2 = tsub(t2, t1); | |
920 | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); | |
921 | ||
922 | out: | |
923 | qemu_iovec_destroy(&qiov); | |
924 | qemu_io_free(buf); | |
925 | return 0; | |
926 | } | |
927 | ||
928 | static void write_help(void) | |
929 | { | |
930 | printf( | |
931 | "\n" | |
932 | " writes a range of bytes from the given offset\n" | |
933 | "\n" | |
934 | " Example:\n" | |
935 | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" | |
936 | "\n" | |
937 | " Writes into a segment of the currently open file, using a buffer\n" | |
938 | " filled with a set pattern (0xcdcdcdcd).\n" | |
939 | " -b, -- write to the VM state rather than the virtual disk\n" | |
4c7b7e9b | 940 | " -c, -- write compressed data with blk_write_compressed\n" |
770e0e0e | 941 | " -f, -- use Force Unit Access semantics\n" |
093ea232 | 942 | " -p, -- ignored for backwards compatibility\n" |
797ac58c KW |
943 | " -P, -- use different pattern to fill file\n" |
944 | " -C, -- report statistics in a machine parsable format\n" | |
945 | " -q, -- quiet mode, do not show I/O statistics\n" | |
4c7b7e9b | 946 | " -z, -- write zeroes using blk_co_write_zeroes\n" |
797ac58c KW |
947 | "\n"); |
948 | } | |
949 | ||
4c7b7e9b | 950 | static int write_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
951 | |
952 | static const cmdinfo_t write_cmd = { | |
953 | .name = "write", | |
954 | .altname = "w", | |
955 | .cfunc = write_f, | |
956 | .argmin = 2, | |
957 | .argmax = -1, | |
770e0e0e | 958 | .args = "[-bcCfqz] [-P pattern] off len", |
797ac58c KW |
959 | .oneline = "writes a number of bytes at a specified offset", |
960 | .help = write_help, | |
961 | }; | |
962 | ||
4c7b7e9b | 963 | static int write_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
964 | { |
965 | struct timeval t1, t2; | |
093ea232 | 966 | bool Cflag = false, qflag = false, bflag = false; |
dc38852a | 967 | bool Pflag = false, zflag = false, cflag = false; |
770e0e0e | 968 | int flags = 0; |
797ac58c KW |
969 | int c, cnt; |
970 | char *buf = NULL; | |
971 | int64_t offset; | |
9b0beaf3 | 972 | int64_t count; |
797ac58c | 973 | /* Some compilers get confused and warn if this is not initialized. */ |
9b0beaf3 | 974 | int64_t total = 0; |
797ac58c KW |
975 | int pattern = 0xcd; |
976 | ||
770e0e0e | 977 | while ((c = getopt(argc, argv, "bcCfpP:qz")) != -1) { |
797ac58c KW |
978 | switch (c) { |
979 | case 'b': | |
dc38852a | 980 | bflag = true; |
797ac58c KW |
981 | break; |
982 | case 'c': | |
dc38852a | 983 | cflag = true; |
797ac58c KW |
984 | break; |
985 | case 'C': | |
dc38852a | 986 | Cflag = true; |
797ac58c | 987 | break; |
770e0e0e EB |
988 | case 'f': |
989 | flags |= BDRV_REQ_FUA; | |
990 | break; | |
797ac58c | 991 | case 'p': |
093ea232 | 992 | /* Ignored for backwards compatibility */ |
797ac58c KW |
993 | break; |
994 | case 'P': | |
dc38852a | 995 | Pflag = true; |
797ac58c KW |
996 | pattern = parse_pattern(optarg); |
997 | if (pattern < 0) { | |
998 | return 0; | |
999 | } | |
1000 | break; | |
1001 | case 'q': | |
dc38852a | 1002 | qflag = true; |
797ac58c KW |
1003 | break; |
1004 | case 'z': | |
dc38852a | 1005 | zflag = true; |
797ac58c KW |
1006 | break; |
1007 | default: | |
c2cdf5c5 | 1008 | return qemuio_command_usage(&write_cmd); |
797ac58c KW |
1009 | } |
1010 | } | |
1011 | ||
1012 | if (optind != argc - 2) { | |
c2cdf5c5 | 1013 | return qemuio_command_usage(&write_cmd); |
797ac58c KW |
1014 | } |
1015 | ||
093ea232 EB |
1016 | if (bflag && zflag) { |
1017 | printf("-b and -z cannot be specified at the same time\n"); | |
797ac58c KW |
1018 | return 0; |
1019 | } | |
1020 | ||
770e0e0e EB |
1021 | if ((flags & BDRV_REQ_FUA) && (bflag || cflag)) { |
1022 | printf("-f and -b or -c cannot be specified at the same time\n"); | |
1023 | return 0; | |
1024 | } | |
1025 | ||
797ac58c KW |
1026 | if (zflag && Pflag) { |
1027 | printf("-z and -P cannot be specified at the same time\n"); | |
1028 | return 0; | |
1029 | } | |
1030 | ||
1031 | offset = cvtnum(argv[optind]); | |
1032 | if (offset < 0) { | |
a9ecfa00 | 1033 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
1034 | return 0; |
1035 | } | |
1036 | ||
1037 | optind++; | |
1038 | count = cvtnum(argv[optind]); | |
1039 | if (count < 0) { | |
a9ecfa00 | 1040 | print_cvtnum_err(count, argv[optind]); |
797ac58c | 1041 | return 0; |
9b0beaf3 JS |
1042 | } else if (count > SIZE_MAX) { |
1043 | printf("length cannot exceed %" PRIu64 ", given %s\n", | |
1044 | (uint64_t) SIZE_MAX, argv[optind]); | |
1045 | return 0; | |
797ac58c KW |
1046 | } |
1047 | ||
093ea232 | 1048 | if (bflag || cflag) { |
797ac58c KW |
1049 | if (offset & 0x1ff) { |
1050 | printf("offset %" PRId64 " is not sector aligned\n", | |
1051 | offset); | |
1052 | return 0; | |
1053 | } | |
1054 | ||
1055 | if (count & 0x1ff) { | |
9b0beaf3 | 1056 | printf("count %"PRId64" is not sector aligned\n", |
797ac58c KW |
1057 | count); |
1058 | return 0; | |
1059 | } | |
1060 | } | |
1061 | ||
1062 | if (!zflag) { | |
4c7b7e9b | 1063 | buf = qemu_io_alloc(blk, count, pattern); |
797ac58c KW |
1064 | } |
1065 | ||
1066 | gettimeofday(&t1, NULL); | |
7b3f9712 | 1067 | if (bflag) { |
4c7b7e9b | 1068 | cnt = do_save_vmstate(blk, buf, offset, count, &total); |
797ac58c | 1069 | } else if (zflag) { |
770e0e0e | 1070 | cnt = do_co_write_zeroes(blk, offset, count, flags, &total); |
797ac58c | 1071 | } else if (cflag) { |
4c7b7e9b | 1072 | cnt = do_write_compressed(blk, buf, offset, count, &total); |
797ac58c | 1073 | } else { |
770e0e0e | 1074 | cnt = do_pwrite(blk, buf, offset, count, flags, &total); |
797ac58c KW |
1075 | } |
1076 | gettimeofday(&t2, NULL); | |
1077 | ||
1078 | if (cnt < 0) { | |
1079 | printf("write failed: %s\n", strerror(-cnt)); | |
1080 | goto out; | |
1081 | } | |
1082 | ||
1083 | if (qflag) { | |
1084 | goto out; | |
1085 | } | |
1086 | ||
1087 | /* Finally, report back -- -C gives a parsable format */ | |
1088 | t2 = tsub(t2, t1); | |
1089 | print_report("wrote", &t2, offset, count, total, cnt, Cflag); | |
1090 | ||
1091 | out: | |
1092 | if (!zflag) { | |
1093 | qemu_io_free(buf); | |
1094 | } | |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | ||
1099 | static void | |
1100 | writev_help(void) | |
1101 | { | |
1102 | printf( | |
1103 | "\n" | |
1104 | " writes a range of bytes from the given offset source from multiple buffers\n" | |
1105 | "\n" | |
1106 | " Example:\n" | |
6e6507c0 | 1107 | " 'writev 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" |
797ac58c KW |
1108 | "\n" |
1109 | " Writes into a segment of the currently open file, using a buffer\n" | |
1110 | " filled with a set pattern (0xcdcdcdcd).\n" | |
1111 | " -P, -- use different pattern to fill file\n" | |
1112 | " -C, -- report statistics in a machine parsable format\n" | |
770e0e0e | 1113 | " -f, -- use Force Unit Access semantics\n" |
797ac58c KW |
1114 | " -q, -- quiet mode, do not show I/O statistics\n" |
1115 | "\n"); | |
1116 | } | |
1117 | ||
4c7b7e9b | 1118 | static int writev_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1119 | |
1120 | static const cmdinfo_t writev_cmd = { | |
1121 | .name = "writev", | |
1122 | .cfunc = writev_f, | |
1123 | .argmin = 2, | |
1124 | .argmax = -1, | |
770e0e0e | 1125 | .args = "[-Cfq] [-P pattern] off len [len..]", |
797ac58c KW |
1126 | .oneline = "writes a number of bytes at a specified offset", |
1127 | .help = writev_help, | |
1128 | }; | |
1129 | ||
4c7b7e9b | 1130 | static int writev_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1131 | { |
1132 | struct timeval t1, t2; | |
dc38852a | 1133 | bool Cflag = false, qflag = false; |
770e0e0e | 1134 | int flags = 0; |
797ac58c KW |
1135 | int c, cnt; |
1136 | char *buf; | |
1137 | int64_t offset; | |
1138 | /* Some compilers get confused and warn if this is not initialized. */ | |
1139 | int total = 0; | |
1140 | int nr_iov; | |
1141 | int pattern = 0xcd; | |
1142 | QEMUIOVector qiov; | |
1143 | ||
b062ad86 | 1144 | while ((c = getopt(argc, argv, "CqP:")) != -1) { |
797ac58c KW |
1145 | switch (c) { |
1146 | case 'C': | |
dc38852a | 1147 | Cflag = true; |
797ac58c | 1148 | break; |
770e0e0e EB |
1149 | case 'f': |
1150 | flags |= BDRV_REQ_FUA; | |
1151 | break; | |
797ac58c | 1152 | case 'q': |
dc38852a | 1153 | qflag = true; |
797ac58c KW |
1154 | break; |
1155 | case 'P': | |
1156 | pattern = parse_pattern(optarg); | |
1157 | if (pattern < 0) { | |
1158 | return 0; | |
1159 | } | |
1160 | break; | |
1161 | default: | |
c2cdf5c5 | 1162 | return qemuio_command_usage(&writev_cmd); |
797ac58c KW |
1163 | } |
1164 | } | |
1165 | ||
1166 | if (optind > argc - 2) { | |
c2cdf5c5 | 1167 | return qemuio_command_usage(&writev_cmd); |
797ac58c KW |
1168 | } |
1169 | ||
1170 | offset = cvtnum(argv[optind]); | |
1171 | if (offset < 0) { | |
a9ecfa00 | 1172 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
1173 | return 0; |
1174 | } | |
1175 | optind++; | |
1176 | ||
797ac58c | 1177 | nr_iov = argc - optind; |
4c7b7e9b | 1178 | buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern); |
797ac58c KW |
1179 | if (buf == NULL) { |
1180 | return 0; | |
1181 | } | |
1182 | ||
1183 | gettimeofday(&t1, NULL); | |
770e0e0e | 1184 | cnt = do_aio_writev(blk, &qiov, offset, flags, &total); |
797ac58c KW |
1185 | gettimeofday(&t2, NULL); |
1186 | ||
1187 | if (cnt < 0) { | |
1188 | printf("writev failed: %s\n", strerror(-cnt)); | |
1189 | goto out; | |
1190 | } | |
1191 | ||
1192 | if (qflag) { | |
1193 | goto out; | |
1194 | } | |
1195 | ||
1196 | /* Finally, report back -- -C gives a parsable format */ | |
1197 | t2 = tsub(t2, t1); | |
1198 | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); | |
1199 | out: | |
1200 | qemu_iovec_destroy(&qiov); | |
1201 | qemu_io_free(buf); | |
1202 | return 0; | |
1203 | } | |
1204 | ||
1205 | static void multiwrite_help(void) | |
1206 | { | |
1207 | printf( | |
1208 | "\n" | |
1209 | " writes a range of bytes from the given offset source from multiple buffers,\n" | |
1210 | " in a batch of requests that may be merged by qemu\n" | |
1211 | "\n" | |
1212 | " Example:\n" | |
1213 | " 'multiwrite 512 1k 1k ; 4k 1k'\n" | |
1214 | " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n" | |
1215 | "\n" | |
1216 | " Writes into a segment of the currently open file, using a buffer\n" | |
1217 | " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n" | |
1218 | " by one for each request contained in the multiwrite command.\n" | |
1219 | " -P, -- use different pattern to fill file\n" | |
1220 | " -C, -- report statistics in a machine parsable format\n" | |
1221 | " -q, -- quiet mode, do not show I/O statistics\n" | |
1222 | "\n"); | |
1223 | } | |
1224 | ||
4c7b7e9b | 1225 | static int multiwrite_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1226 | |
1227 | static const cmdinfo_t multiwrite_cmd = { | |
1228 | .name = "multiwrite", | |
1229 | .cfunc = multiwrite_f, | |
1230 | .argmin = 2, | |
1231 | .argmax = -1, | |
1232 | .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]", | |
1233 | .oneline = "issues multiple write requests at once", | |
1234 | .help = multiwrite_help, | |
1235 | }; | |
1236 | ||
4c7b7e9b | 1237 | static int multiwrite_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1238 | { |
1239 | struct timeval t1, t2; | |
dc38852a | 1240 | bool Cflag = false, qflag = false; |
797ac58c KW |
1241 | int c, cnt; |
1242 | char **buf; | |
1243 | int64_t offset, first_offset = 0; | |
1244 | /* Some compilers get confused and warn if this is not initialized. */ | |
1245 | int total = 0; | |
1246 | int nr_iov; | |
1247 | int nr_reqs; | |
1248 | int pattern = 0xcd; | |
1249 | QEMUIOVector *qiovs; | |
1250 | int i; | |
1251 | BlockRequest *reqs; | |
1252 | ||
b062ad86 | 1253 | while ((c = getopt(argc, argv, "CqP:")) != -1) { |
797ac58c KW |
1254 | switch (c) { |
1255 | case 'C': | |
dc38852a | 1256 | Cflag = true; |
797ac58c KW |
1257 | break; |
1258 | case 'q': | |
dc38852a | 1259 | qflag = true; |
797ac58c KW |
1260 | break; |
1261 | case 'P': | |
1262 | pattern = parse_pattern(optarg); | |
1263 | if (pattern < 0) { | |
1264 | return 0; | |
1265 | } | |
1266 | break; | |
1267 | default: | |
c2cdf5c5 | 1268 | return qemuio_command_usage(&writev_cmd); |
797ac58c KW |
1269 | } |
1270 | } | |
1271 | ||
1272 | if (optind > argc - 2) { | |
c2cdf5c5 | 1273 | return qemuio_command_usage(&writev_cmd); |
797ac58c KW |
1274 | } |
1275 | ||
1276 | nr_reqs = 1; | |
1277 | for (i = optind; i < argc; i++) { | |
1278 | if (!strcmp(argv[i], ";")) { | |
1279 | nr_reqs++; | |
1280 | } | |
1281 | } | |
1282 | ||
02c4f26b MA |
1283 | reqs = g_new0(BlockRequest, nr_reqs); |
1284 | buf = g_new0(char *, nr_reqs); | |
1285 | qiovs = g_new(QEMUIOVector, nr_reqs); | |
797ac58c KW |
1286 | |
1287 | for (i = 0; i < nr_reqs && optind < argc; i++) { | |
1288 | int j; | |
1289 | ||
1290 | /* Read the offset of the request */ | |
1291 | offset = cvtnum(argv[optind]); | |
1292 | if (offset < 0) { | |
a9ecfa00 | 1293 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
1294 | goto out; |
1295 | } | |
1296 | optind++; | |
1297 | ||
1298 | if (offset & 0x1ff) { | |
1299 | printf("offset %lld is not sector aligned\n", | |
1300 | (long long)offset); | |
1301 | goto out; | |
1302 | } | |
1303 | ||
1304 | if (i == 0) { | |
1305 | first_offset = offset; | |
1306 | } | |
1307 | ||
1308 | /* Read lengths for qiov entries */ | |
1309 | for (j = optind; j < argc; j++) { | |
1310 | if (!strcmp(argv[j], ";")) { | |
1311 | break; | |
1312 | } | |
1313 | } | |
1314 | ||
1315 | nr_iov = j - optind; | |
1316 | ||
1317 | /* Build request */ | |
4c7b7e9b | 1318 | buf[i] = create_iovec(blk, &qiovs[i], &argv[optind], nr_iov, pattern); |
797ac58c KW |
1319 | if (buf[i] == NULL) { |
1320 | goto out; | |
1321 | } | |
1322 | ||
1323 | reqs[i].qiov = &qiovs[i]; | |
1324 | reqs[i].sector = offset >> 9; | |
1325 | reqs[i].nb_sectors = reqs[i].qiov->size >> 9; | |
1326 | ||
1327 | optind = j + 1; | |
1328 | ||
1329 | pattern++; | |
1330 | } | |
1331 | ||
1332 | /* If there were empty requests at the end, ignore them */ | |
1333 | nr_reqs = i; | |
1334 | ||
1335 | gettimeofday(&t1, NULL); | |
4c7b7e9b | 1336 | cnt = do_aio_multiwrite(blk, reqs, nr_reqs, &total); |
797ac58c KW |
1337 | gettimeofday(&t2, NULL); |
1338 | ||
1339 | if (cnt < 0) { | |
1340 | printf("aio_multiwrite failed: %s\n", strerror(-cnt)); | |
1341 | goto out; | |
1342 | } | |
1343 | ||
1344 | if (qflag) { | |
1345 | goto out; | |
1346 | } | |
1347 | ||
1348 | /* Finally, report back -- -C gives a parsable format */ | |
1349 | t2 = tsub(t2, t1); | |
1350 | print_report("wrote", &t2, first_offset, total, total, cnt, Cflag); | |
1351 | out: | |
1352 | for (i = 0; i < nr_reqs; i++) { | |
1353 | qemu_io_free(buf[i]); | |
1354 | if (reqs[i].qiov != NULL) { | |
1355 | qemu_iovec_destroy(&qiovs[i]); | |
1356 | } | |
1357 | } | |
1358 | g_free(buf); | |
1359 | g_free(reqs); | |
1360 | g_free(qiovs); | |
1361 | return 0; | |
1362 | } | |
1363 | ||
1364 | struct aio_ctx { | |
4c7b7e9b | 1365 | BlockBackend *blk; |
797ac58c KW |
1366 | QEMUIOVector qiov; |
1367 | int64_t offset; | |
1368 | char *buf; | |
dc38852a EB |
1369 | bool qflag; |
1370 | bool vflag; | |
1371 | bool Cflag; | |
1372 | bool Pflag; | |
1373 | bool zflag; | |
a91f9584 | 1374 | BlockAcctCookie acct; |
797ac58c KW |
1375 | int pattern; |
1376 | struct timeval t1; | |
1377 | }; | |
1378 | ||
1379 | static void aio_write_done(void *opaque, int ret) | |
1380 | { | |
1381 | struct aio_ctx *ctx = opaque; | |
1382 | struct timeval t2; | |
1383 | ||
1384 | gettimeofday(&t2, NULL); | |
1385 | ||
1386 | ||
1387 | if (ret < 0) { | |
1388 | printf("aio_write failed: %s\n", strerror(-ret)); | |
556c2b60 | 1389 | block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); |
797ac58c KW |
1390 | goto out; |
1391 | } | |
1392 | ||
4c7b7e9b | 1393 | block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); |
a91f9584 | 1394 | |
797ac58c KW |
1395 | if (ctx->qflag) { |
1396 | goto out; | |
1397 | } | |
1398 | ||
1399 | /* Finally, report back -- -C gives a parsable format */ | |
1400 | t2 = tsub(t2, ctx->t1); | |
1401 | print_report("wrote", &t2, ctx->offset, ctx->qiov.size, | |
1402 | ctx->qiov.size, 1, ctx->Cflag); | |
1403 | out: | |
5ceb7765 KW |
1404 | if (!ctx->zflag) { |
1405 | qemu_io_free(ctx->buf); | |
1406 | qemu_iovec_destroy(&ctx->qiov); | |
1407 | } | |
797ac58c KW |
1408 | g_free(ctx); |
1409 | } | |
1410 | ||
1411 | static void aio_read_done(void *opaque, int ret) | |
1412 | { | |
1413 | struct aio_ctx *ctx = opaque; | |
1414 | struct timeval t2; | |
1415 | ||
1416 | gettimeofday(&t2, NULL); | |
1417 | ||
1418 | if (ret < 0) { | |
1419 | printf("readv failed: %s\n", strerror(-ret)); | |
556c2b60 | 1420 | block_acct_failed(blk_get_stats(ctx->blk), &ctx->acct); |
797ac58c KW |
1421 | goto out; |
1422 | } | |
1423 | ||
1424 | if (ctx->Pflag) { | |
1425 | void *cmp_buf = g_malloc(ctx->qiov.size); | |
1426 | ||
1427 | memset(cmp_buf, ctx->pattern, ctx->qiov.size); | |
1428 | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { | |
1429 | printf("Pattern verification failed at offset %" | |
1430 | PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size); | |
1431 | } | |
1432 | g_free(cmp_buf); | |
1433 | } | |
1434 | ||
4c7b7e9b | 1435 | block_acct_done(blk_get_stats(ctx->blk), &ctx->acct); |
a91f9584 | 1436 | |
797ac58c KW |
1437 | if (ctx->qflag) { |
1438 | goto out; | |
1439 | } | |
1440 | ||
1441 | if (ctx->vflag) { | |
1442 | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); | |
1443 | } | |
1444 | ||
1445 | /* Finally, report back -- -C gives a parsable format */ | |
1446 | t2 = tsub(t2, ctx->t1); | |
1447 | print_report("read", &t2, ctx->offset, ctx->qiov.size, | |
1448 | ctx->qiov.size, 1, ctx->Cflag); | |
1449 | out: | |
1450 | qemu_io_free(ctx->buf); | |
1451 | qemu_iovec_destroy(&ctx->qiov); | |
1452 | g_free(ctx); | |
1453 | } | |
1454 | ||
1455 | static void aio_read_help(void) | |
1456 | { | |
1457 | printf( | |
1458 | "\n" | |
1459 | " asynchronously reads a range of bytes from the given offset\n" | |
1460 | "\n" | |
1461 | " Example:\n" | |
1462 | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
1463 | "\n" | |
1464 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
1465 | " standard output stream (with -v option) for subsequent inspection.\n" | |
1466 | " The read is performed asynchronously and the aio_flush command must be\n" | |
1467 | " used to ensure all outstanding aio requests have been completed.\n" | |
1468 | " -C, -- report statistics in a machine parsable format\n" | |
1469 | " -P, -- use a pattern to verify read data\n" | |
1470 | " -v, -- dump buffer to standard output\n" | |
1471 | " -q, -- quiet mode, do not show I/O statistics\n" | |
1472 | "\n"); | |
1473 | } | |
1474 | ||
4c7b7e9b | 1475 | static int aio_read_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1476 | |
1477 | static const cmdinfo_t aio_read_cmd = { | |
1478 | .name = "aio_read", | |
1479 | .cfunc = aio_read_f, | |
1480 | .argmin = 2, | |
1481 | .argmax = -1, | |
093ea232 | 1482 | .args = "[-Cqv] [-P pattern] off len [len..]", |
797ac58c KW |
1483 | .oneline = "asynchronously reads a number of bytes", |
1484 | .help = aio_read_help, | |
1485 | }; | |
1486 | ||
4c7b7e9b | 1487 | static int aio_read_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1488 | { |
1489 | int nr_iov, c; | |
1490 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); | |
1491 | ||
4c7b7e9b | 1492 | ctx->blk = blk; |
b062ad86 | 1493 | while ((c = getopt(argc, argv, "CP:qv")) != -1) { |
797ac58c KW |
1494 | switch (c) { |
1495 | case 'C': | |
dc38852a | 1496 | ctx->Cflag = true; |
797ac58c KW |
1497 | break; |
1498 | case 'P': | |
dc38852a | 1499 | ctx->Pflag = true; |
797ac58c KW |
1500 | ctx->pattern = parse_pattern(optarg); |
1501 | if (ctx->pattern < 0) { | |
1502 | g_free(ctx); | |
1503 | return 0; | |
1504 | } | |
1505 | break; | |
1506 | case 'q': | |
dc38852a | 1507 | ctx->qflag = true; |
797ac58c KW |
1508 | break; |
1509 | case 'v': | |
dc38852a | 1510 | ctx->vflag = true; |
797ac58c KW |
1511 | break; |
1512 | default: | |
1513 | g_free(ctx); | |
c2cdf5c5 | 1514 | return qemuio_command_usage(&aio_read_cmd); |
797ac58c KW |
1515 | } |
1516 | } | |
1517 | ||
1518 | if (optind > argc - 2) { | |
1519 | g_free(ctx); | |
c2cdf5c5 | 1520 | return qemuio_command_usage(&aio_read_cmd); |
797ac58c KW |
1521 | } |
1522 | ||
1523 | ctx->offset = cvtnum(argv[optind]); | |
1524 | if (ctx->offset < 0) { | |
a9ecfa00 | 1525 | print_cvtnum_err(ctx->offset, argv[optind]); |
797ac58c KW |
1526 | g_free(ctx); |
1527 | return 0; | |
1528 | } | |
1529 | optind++; | |
1530 | ||
797ac58c | 1531 | nr_iov = argc - optind; |
4c7b7e9b | 1532 | ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, 0xab); |
797ac58c | 1533 | if (ctx->buf == NULL) { |
556c2b60 | 1534 | block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ); |
797ac58c KW |
1535 | g_free(ctx); |
1536 | return 0; | |
1537 | } | |
1538 | ||
1539 | gettimeofday(&ctx->t1, NULL); | |
4c7b7e9b HR |
1540 | block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, |
1541 | BLOCK_ACCT_READ); | |
7b3f9712 | 1542 | blk_aio_preadv(blk, ctx->offset, &ctx->qiov, 0, aio_read_done, ctx); |
797ac58c KW |
1543 | return 0; |
1544 | } | |
1545 | ||
1546 | static void aio_write_help(void) | |
1547 | { | |
1548 | printf( | |
1549 | "\n" | |
1550 | " asynchronously writes a range of bytes from the given offset source\n" | |
1551 | " from multiple buffers\n" | |
1552 | "\n" | |
1553 | " Example:\n" | |
1554 | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" | |
1555 | "\n" | |
1556 | " Writes into a segment of the currently open file, using a buffer\n" | |
1557 | " filled with a set pattern (0xcdcdcdcd).\n" | |
1558 | " The write is performed asynchronously and the aio_flush command must be\n" | |
1559 | " used to ensure all outstanding aio requests have been completed.\n" | |
1560 | " -P, -- use different pattern to fill file\n" | |
1561 | " -C, -- report statistics in a machine parsable format\n" | |
770e0e0e | 1562 | " -f, -- use Force Unit Access semantics\n" |
797ac58c | 1563 | " -q, -- quiet mode, do not show I/O statistics\n" |
5ceb7765 | 1564 | " -z, -- write zeroes using blk_aio_write_zeroes\n" |
797ac58c KW |
1565 | "\n"); |
1566 | } | |
1567 | ||
4c7b7e9b | 1568 | static int aio_write_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1569 | |
1570 | static const cmdinfo_t aio_write_cmd = { | |
1571 | .name = "aio_write", | |
1572 | .cfunc = aio_write_f, | |
1573 | .argmin = 2, | |
1574 | .argmax = -1, | |
770e0e0e | 1575 | .args = "[-Cfqz] [-P pattern] off len [len..]", |
797ac58c KW |
1576 | .oneline = "asynchronously writes a number of bytes", |
1577 | .help = aio_write_help, | |
1578 | }; | |
1579 | ||
4c7b7e9b | 1580 | static int aio_write_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1581 | { |
1582 | int nr_iov, c; | |
1583 | int pattern = 0xcd; | |
1584 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); | |
770e0e0e | 1585 | int flags = 0; |
797ac58c | 1586 | |
4c7b7e9b | 1587 | ctx->blk = blk; |
770e0e0e | 1588 | while ((c = getopt(argc, argv, "CfqP:z")) != -1) { |
797ac58c KW |
1589 | switch (c) { |
1590 | case 'C': | |
dc38852a | 1591 | ctx->Cflag = true; |
797ac58c | 1592 | break; |
770e0e0e EB |
1593 | case 'f': |
1594 | flags |= BDRV_REQ_FUA; | |
1595 | break; | |
797ac58c | 1596 | case 'q': |
dc38852a | 1597 | ctx->qflag = true; |
797ac58c KW |
1598 | break; |
1599 | case 'P': | |
1600 | pattern = parse_pattern(optarg); | |
1601 | if (pattern < 0) { | |
1602 | g_free(ctx); | |
1603 | return 0; | |
1604 | } | |
1605 | break; | |
5ceb7765 | 1606 | case 'z': |
dc38852a | 1607 | ctx->zflag = true; |
5ceb7765 | 1608 | break; |
797ac58c KW |
1609 | default: |
1610 | g_free(ctx); | |
c2cdf5c5 | 1611 | return qemuio_command_usage(&aio_write_cmd); |
797ac58c KW |
1612 | } |
1613 | } | |
1614 | ||
1615 | if (optind > argc - 2) { | |
1616 | g_free(ctx); | |
c2cdf5c5 | 1617 | return qemuio_command_usage(&aio_write_cmd); |
797ac58c KW |
1618 | } |
1619 | ||
5ceb7765 KW |
1620 | if (ctx->zflag && optind != argc - 2) { |
1621 | printf("-z supports only a single length parameter\n"); | |
1622 | g_free(ctx); | |
1623 | return 0; | |
1624 | } | |
1625 | ||
1626 | if (ctx->zflag && ctx->Pflag) { | |
1627 | printf("-z and -P cannot be specified at the same time\n"); | |
1628 | g_free(ctx); | |
1629 | return 0; | |
1630 | } | |
1631 | ||
797ac58c KW |
1632 | ctx->offset = cvtnum(argv[optind]); |
1633 | if (ctx->offset < 0) { | |
a9ecfa00 | 1634 | print_cvtnum_err(ctx->offset, argv[optind]); |
797ac58c KW |
1635 | g_free(ctx); |
1636 | return 0; | |
1637 | } | |
1638 | optind++; | |
1639 | ||
5ceb7765 KW |
1640 | if (ctx->zflag) { |
1641 | int64_t count = cvtnum(argv[optind]); | |
1642 | if (count < 0) { | |
1643 | print_cvtnum_err(count, argv[optind]); | |
0e01b76e | 1644 | g_free(ctx); |
5ceb7765 KW |
1645 | return 0; |
1646 | } | |
797ac58c | 1647 | |
5ceb7765 | 1648 | ctx->qiov.size = count; |
770e0e0e EB |
1649 | blk_aio_write_zeroes(blk, ctx->offset, count, flags, aio_write_done, |
1650 | ctx); | |
5ceb7765 KW |
1651 | } else { |
1652 | nr_iov = argc - optind; | |
1653 | ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, | |
1654 | pattern); | |
1655 | if (ctx->buf == NULL) { | |
1656 | block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE); | |
1657 | g_free(ctx); | |
1658 | return 0; | |
1659 | } | |
1660 | ||
1661 | gettimeofday(&ctx->t1, NULL); | |
1662 | block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size, | |
1663 | BLOCK_ACCT_WRITE); | |
1664 | ||
770e0e0e EB |
1665 | blk_aio_pwritev(blk, ctx->offset, &ctx->qiov, flags, aio_write_done, |
1666 | ctx); | |
5ceb7765 | 1667 | } |
797ac58c KW |
1668 | return 0; |
1669 | } | |
1670 | ||
4c7b7e9b | 1671 | static int aio_flush_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1672 | { |
556c2b60 AG |
1673 | BlockAcctCookie cookie; |
1674 | block_acct_start(blk_get_stats(blk), &cookie, 0, BLOCK_ACCT_FLUSH); | |
4c7b7e9b | 1675 | blk_drain_all(); |
556c2b60 | 1676 | block_acct_done(blk_get_stats(blk), &cookie); |
797ac58c KW |
1677 | return 0; |
1678 | } | |
1679 | ||
1680 | static const cmdinfo_t aio_flush_cmd = { | |
1681 | .name = "aio_flush", | |
1682 | .cfunc = aio_flush_f, | |
1683 | .oneline = "completes all outstanding aio requests" | |
1684 | }; | |
1685 | ||
4c7b7e9b | 1686 | static int flush_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1687 | { |
4c7b7e9b | 1688 | blk_flush(blk); |
797ac58c KW |
1689 | return 0; |
1690 | } | |
1691 | ||
1692 | static const cmdinfo_t flush_cmd = { | |
1693 | .name = "flush", | |
1694 | .altname = "f", | |
1695 | .cfunc = flush_f, | |
1696 | .oneline = "flush all in-core file state to disk", | |
1697 | }; | |
1698 | ||
4c7b7e9b | 1699 | static int truncate_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1700 | { |
1701 | int64_t offset; | |
1702 | int ret; | |
1703 | ||
1704 | offset = cvtnum(argv[1]); | |
1705 | if (offset < 0) { | |
a9ecfa00 | 1706 | print_cvtnum_err(offset, argv[1]); |
797ac58c KW |
1707 | return 0; |
1708 | } | |
1709 | ||
4c7b7e9b | 1710 | ret = blk_truncate(blk, offset); |
797ac58c KW |
1711 | if (ret < 0) { |
1712 | printf("truncate: %s\n", strerror(-ret)); | |
1713 | return 0; | |
1714 | } | |
1715 | ||
1716 | return 0; | |
1717 | } | |
1718 | ||
1719 | static const cmdinfo_t truncate_cmd = { | |
1720 | .name = "truncate", | |
1721 | .altname = "t", | |
1722 | .cfunc = truncate_f, | |
1723 | .argmin = 1, | |
1724 | .argmax = 1, | |
1725 | .args = "off", | |
1726 | .oneline = "truncates the current file at the given offset", | |
1727 | }; | |
1728 | ||
4c7b7e9b | 1729 | static int length_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1730 | { |
1731 | int64_t size; | |
1732 | char s1[64]; | |
1733 | ||
4c7b7e9b | 1734 | size = blk_getlength(blk); |
797ac58c KW |
1735 | if (size < 0) { |
1736 | printf("getlength: %s\n", strerror(-size)); | |
1737 | return 0; | |
1738 | } | |
1739 | ||
1740 | cvtstr(size, s1, sizeof(s1)); | |
1741 | printf("%s\n", s1); | |
1742 | return 0; | |
1743 | } | |
1744 | ||
1745 | ||
1746 | static const cmdinfo_t length_cmd = { | |
1747 | .name = "length", | |
1748 | .altname = "l", | |
1749 | .cfunc = length_f, | |
1750 | .oneline = "gets the length of the current file", | |
1751 | }; | |
1752 | ||
1753 | ||
4c7b7e9b | 1754 | static int info_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1755 | { |
4c7b7e9b | 1756 | BlockDriverState *bs = blk_bs(blk); |
797ac58c | 1757 | BlockDriverInfo bdi; |
a8d8ecb7 | 1758 | ImageInfoSpecific *spec_info; |
797ac58c KW |
1759 | char s1[64], s2[64]; |
1760 | int ret; | |
1761 | ||
1762 | if (bs->drv && bs->drv->format_name) { | |
1763 | printf("format name: %s\n", bs->drv->format_name); | |
1764 | } | |
1765 | if (bs->drv && bs->drv->protocol_name) { | |
1766 | printf("format name: %s\n", bs->drv->protocol_name); | |
1767 | } | |
1768 | ||
1769 | ret = bdrv_get_info(bs, &bdi); | |
1770 | if (ret) { | |
1771 | return 0; | |
1772 | } | |
1773 | ||
1774 | cvtstr(bdi.cluster_size, s1, sizeof(s1)); | |
1775 | cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); | |
1776 | ||
1777 | printf("cluster size: %s\n", s1); | |
1778 | printf("vm state offset: %s\n", s2); | |
1779 | ||
a8d8ecb7 HR |
1780 | spec_info = bdrv_get_specific_info(bs); |
1781 | if (spec_info) { | |
1782 | printf("Format specific information:\n"); | |
1783 | bdrv_image_info_specific_dump(fprintf, stdout, spec_info); | |
1784 | qapi_free_ImageInfoSpecific(spec_info); | |
1785 | } | |
1786 | ||
797ac58c KW |
1787 | return 0; |
1788 | } | |
1789 | ||
1790 | ||
1791 | ||
1792 | static const cmdinfo_t info_cmd = { | |
1793 | .name = "info", | |
1794 | .altname = "i", | |
1795 | .cfunc = info_f, | |
1796 | .oneline = "prints information about the current file", | |
1797 | }; | |
1798 | ||
1799 | static void discard_help(void) | |
1800 | { | |
1801 | printf( | |
1802 | "\n" | |
1803 | " discards a range of bytes from the given offset\n" | |
1804 | "\n" | |
1805 | " Example:\n" | |
1806 | " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" | |
1807 | "\n" | |
1808 | " Discards a segment of the currently open file.\n" | |
1809 | " -C, -- report statistics in a machine parsable format\n" | |
1810 | " -q, -- quiet mode, do not show I/O statistics\n" | |
1811 | "\n"); | |
1812 | } | |
1813 | ||
4c7b7e9b | 1814 | static int discard_f(BlockBackend *blk, int argc, char **argv); |
797ac58c KW |
1815 | |
1816 | static const cmdinfo_t discard_cmd = { | |
1817 | .name = "discard", | |
1818 | .altname = "d", | |
1819 | .cfunc = discard_f, | |
1820 | .argmin = 2, | |
1821 | .argmax = -1, | |
1822 | .args = "[-Cq] off len", | |
1823 | .oneline = "discards a number of bytes at a specified offset", | |
1824 | .help = discard_help, | |
1825 | }; | |
1826 | ||
4c7b7e9b | 1827 | static int discard_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1828 | { |
1829 | struct timeval t1, t2; | |
dc38852a | 1830 | bool Cflag = false, qflag = false; |
797ac58c | 1831 | int c, ret; |
9b0beaf3 | 1832 | int64_t offset, count; |
797ac58c | 1833 | |
b062ad86 | 1834 | while ((c = getopt(argc, argv, "Cq")) != -1) { |
797ac58c KW |
1835 | switch (c) { |
1836 | case 'C': | |
dc38852a | 1837 | Cflag = true; |
797ac58c KW |
1838 | break; |
1839 | case 'q': | |
dc38852a | 1840 | qflag = true; |
797ac58c KW |
1841 | break; |
1842 | default: | |
c2cdf5c5 | 1843 | return qemuio_command_usage(&discard_cmd); |
797ac58c KW |
1844 | } |
1845 | } | |
1846 | ||
1847 | if (optind != argc - 2) { | |
c2cdf5c5 | 1848 | return qemuio_command_usage(&discard_cmd); |
797ac58c KW |
1849 | } |
1850 | ||
1851 | offset = cvtnum(argv[optind]); | |
1852 | if (offset < 0) { | |
a9ecfa00 | 1853 | print_cvtnum_err(offset, argv[optind]); |
797ac58c KW |
1854 | return 0; |
1855 | } | |
1856 | ||
1857 | optind++; | |
1858 | count = cvtnum(argv[optind]); | |
1859 | if (count < 0) { | |
a9ecfa00 | 1860 | print_cvtnum_err(count, argv[optind]); |
797ac58c | 1861 | return 0; |
9b0beaf3 JS |
1862 | } else if (count >> BDRV_SECTOR_BITS > INT_MAX) { |
1863 | printf("length cannot exceed %"PRIu64", given %s\n", | |
1864 | (uint64_t)INT_MAX << BDRV_SECTOR_BITS, | |
1865 | argv[optind]); | |
1866 | return 0; | |
797ac58c KW |
1867 | } |
1868 | ||
1869 | gettimeofday(&t1, NULL); | |
4c7b7e9b HR |
1870 | ret = blk_discard(blk, offset >> BDRV_SECTOR_BITS, |
1871 | count >> BDRV_SECTOR_BITS); | |
797ac58c KW |
1872 | gettimeofday(&t2, NULL); |
1873 | ||
1874 | if (ret < 0) { | |
1875 | printf("discard failed: %s\n", strerror(-ret)); | |
1876 | goto out; | |
1877 | } | |
1878 | ||
1879 | /* Finally, report back -- -C gives a parsable format */ | |
1880 | if (!qflag) { | |
1881 | t2 = tsub(t2, t1); | |
1882 | print_report("discard", &t2, offset, count, count, 1, Cflag); | |
1883 | } | |
1884 | ||
1885 | out: | |
1886 | return 0; | |
1887 | } | |
1888 | ||
4c7b7e9b | 1889 | static int alloc_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 1890 | { |
4c7b7e9b | 1891 | BlockDriverState *bs = blk_bs(blk); |
9b0beaf3 | 1892 | int64_t offset, sector_num, nb_sectors, remaining; |
797ac58c | 1893 | char s1[64]; |
9b0beaf3 JS |
1894 | int num, ret; |
1895 | int64_t sum_alloc; | |
797ac58c KW |
1896 | |
1897 | offset = cvtnum(argv[1]); | |
1898 | if (offset < 0) { | |
a9ecfa00 | 1899 | print_cvtnum_err(offset, argv[1]); |
797ac58c KW |
1900 | return 0; |
1901 | } else if (offset & 0x1ff) { | |
1902 | printf("offset %" PRId64 " is not sector aligned\n", | |
1903 | offset); | |
1904 | return 0; | |
1905 | } | |
1906 | ||
1907 | if (argc == 3) { | |
1908 | nb_sectors = cvtnum(argv[2]); | |
1909 | if (nb_sectors < 0) { | |
a9ecfa00 | 1910 | print_cvtnum_err(nb_sectors, argv[2]); |
797ac58c | 1911 | return 0; |
9b0beaf3 JS |
1912 | } else if (nb_sectors > INT_MAX) { |
1913 | printf("length argument cannot exceed %d, given %s\n", | |
1914 | INT_MAX, argv[2]); | |
1915 | return 0; | |
797ac58c KW |
1916 | } |
1917 | } else { | |
1918 | nb_sectors = 1; | |
1919 | } | |
1920 | ||
1921 | remaining = nb_sectors; | |
1922 | sum_alloc = 0; | |
1923 | sector_num = offset >> 9; | |
1924 | while (remaining) { | |
1925 | ret = bdrv_is_allocated(bs, sector_num, remaining, &num); | |
d663640c PB |
1926 | if (ret < 0) { |
1927 | printf("is_allocated failed: %s\n", strerror(-ret)); | |
1928 | return 0; | |
1929 | } | |
797ac58c KW |
1930 | sector_num += num; |
1931 | remaining -= num; | |
1932 | if (ret) { | |
1933 | sum_alloc += num; | |
1934 | } | |
1935 | if (num == 0) { | |
1936 | nb_sectors -= remaining; | |
1937 | remaining = 0; | |
1938 | } | |
1939 | } | |
1940 | ||
1941 | cvtstr(offset, s1, sizeof(s1)); | |
1942 | ||
9b0beaf3 | 1943 | printf("%"PRId64"/%"PRId64" sectors allocated at offset %s\n", |
797ac58c KW |
1944 | sum_alloc, nb_sectors, s1); |
1945 | return 0; | |
1946 | } | |
1947 | ||
1948 | static const cmdinfo_t alloc_cmd = { | |
1949 | .name = "alloc", | |
1950 | .altname = "a", | |
1951 | .argmin = 1, | |
1952 | .argmax = 2, | |
1953 | .cfunc = alloc_f, | |
1954 | .args = "off [sectors]", | |
1955 | .oneline = "checks if a sector is present in the file", | |
1956 | }; | |
1957 | ||
1958 | ||
1959 | static int map_is_allocated(BlockDriverState *bs, int64_t sector_num, | |
1960 | int64_t nb_sectors, int64_t *pnum) | |
1961 | { | |
1962 | int num, num_checked; | |
1963 | int ret, firstret; | |
1964 | ||
1965 | num_checked = MIN(nb_sectors, INT_MAX); | |
1966 | ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); | |
1967 | if (ret < 0) { | |
1968 | return ret; | |
1969 | } | |
1970 | ||
1971 | firstret = ret; | |
1972 | *pnum = num; | |
1973 | ||
1974 | while (nb_sectors > 0 && ret == firstret) { | |
1975 | sector_num += num; | |
1976 | nb_sectors -= num; | |
1977 | ||
1978 | num_checked = MIN(nb_sectors, INT_MAX); | |
1979 | ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); | |
4b25bbc4 | 1980 | if (ret == firstret && num) { |
797ac58c KW |
1981 | *pnum += num; |
1982 | } else { | |
1983 | break; | |
1984 | } | |
1985 | } | |
1986 | ||
1987 | return firstret; | |
1988 | } | |
1989 | ||
4c7b7e9b | 1990 | static int map_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
1991 | { |
1992 | int64_t offset; | |
4c7b7e9b | 1993 | int64_t nb_sectors, total_sectors; |
797ac58c KW |
1994 | char s1[64]; |
1995 | int64_t num; | |
1996 | int ret; | |
1997 | const char *retstr; | |
1998 | ||
1999 | offset = 0; | |
4c7b7e9b HR |
2000 | total_sectors = blk_nb_sectors(blk); |
2001 | if (total_sectors < 0) { | |
2002 | error_report("Failed to query image length: %s", | |
2003 | strerror(-total_sectors)); | |
2004 | return 0; | |
2005 | } | |
2006 | ||
2007 | nb_sectors = total_sectors; | |
797ac58c KW |
2008 | |
2009 | do { | |
4c7b7e9b | 2010 | ret = map_is_allocated(blk_bs(blk), offset, nb_sectors, &num); |
797ac58c KW |
2011 | if (ret < 0) { |
2012 | error_report("Failed to get allocation status: %s", strerror(-ret)); | |
2013 | return 0; | |
4b25bbc4 HR |
2014 | } else if (!num) { |
2015 | error_report("Unexpected end of image"); | |
2016 | return 0; | |
797ac58c KW |
2017 | } |
2018 | ||
2019 | retstr = ret ? " allocated" : "not allocated"; | |
2020 | cvtstr(offset << 9ULL, s1, sizeof(s1)); | |
2021 | printf("[% 24" PRId64 "] % 8" PRId64 "/% 8" PRId64 " sectors %s " | |
2022 | "at offset %s (%d)\n", | |
2023 | offset << 9ULL, num, nb_sectors, retstr, s1, ret); | |
2024 | ||
2025 | offset += num; | |
2026 | nb_sectors -= num; | |
4c7b7e9b | 2027 | } while (offset < total_sectors); |
797ac58c KW |
2028 | |
2029 | return 0; | |
2030 | } | |
2031 | ||
2032 | static const cmdinfo_t map_cmd = { | |
2033 | .name = "map", | |
2034 | .argmin = 0, | |
2035 | .argmax = 0, | |
2036 | .cfunc = map_f, | |
2037 | .args = "", | |
2038 | .oneline = "prints the allocated areas of a file", | |
2039 | }; | |
2040 | ||
5bbd2e59 KW |
2041 | static void reopen_help(void) |
2042 | { | |
2043 | printf( | |
2044 | "\n" | |
2045 | " Changes the open options of an already opened image\n" | |
2046 | "\n" | |
2047 | " Example:\n" | |
2048 | " 'reopen -o lazy-refcounts=on' - activates lazy refcount writeback on a qcow2 image\n" | |
2049 | "\n" | |
2050 | " -r, -- Reopen the image read-only\n" | |
2051 | " -c, -- Change the cache mode to the given value\n" | |
2052 | " -o, -- Changes block driver options (cf. 'open' command)\n" | |
2053 | "\n"); | |
2054 | } | |
2055 | ||
2056 | static int reopen_f(BlockBackend *blk, int argc, char **argv); | |
2057 | ||
2058 | static QemuOptsList reopen_opts = { | |
2059 | .name = "reopen", | |
2060 | .merge_lists = true, | |
2061 | .head = QTAILQ_HEAD_INITIALIZER(reopen_opts.head), | |
2062 | .desc = { | |
2063 | /* no elements => accept any params */ | |
2064 | { /* end of list */ } | |
2065 | }, | |
2066 | }; | |
2067 | ||
2068 | static const cmdinfo_t reopen_cmd = { | |
2069 | .name = "reopen", | |
2070 | .argmin = 0, | |
2071 | .argmax = -1, | |
2072 | .cfunc = reopen_f, | |
2073 | .args = "[-r] [-c cache] [-o options]", | |
2074 | .oneline = "reopens an image with new options", | |
2075 | .help = reopen_help, | |
2076 | }; | |
2077 | ||
2078 | static int reopen_f(BlockBackend *blk, int argc, char **argv) | |
2079 | { | |
2080 | BlockDriverState *bs = blk_bs(blk); | |
2081 | QemuOpts *qopts; | |
2082 | QDict *opts; | |
2083 | int c; | |
2084 | int flags = bs->open_flags; | |
19dbecdc | 2085 | bool writethrough = !blk_enable_write_cache(blk); |
5bbd2e59 KW |
2086 | |
2087 | BlockReopenQueue *brq; | |
2088 | Error *local_err = NULL; | |
2089 | ||
2090 | while ((c = getopt(argc, argv, "c:o:r")) != -1) { | |
2091 | switch (c) { | |
2092 | case 'c': | |
19dbecdc | 2093 | if (bdrv_parse_cache_mode(optarg, &flags, &writethrough) < 0) { |
5bbd2e59 KW |
2094 | error_report("Invalid cache option: %s", optarg); |
2095 | return 0; | |
2096 | } | |
2097 | break; | |
2098 | case 'o': | |
2099 | if (!qemu_opts_parse_noisily(&reopen_opts, optarg, 0)) { | |
2100 | qemu_opts_reset(&reopen_opts); | |
2101 | return 0; | |
2102 | } | |
2103 | break; | |
2104 | case 'r': | |
2105 | flags &= ~BDRV_O_RDWR; | |
2106 | break; | |
2107 | default: | |
2108 | qemu_opts_reset(&reopen_opts); | |
2109 | return qemuio_command_usage(&reopen_cmd); | |
2110 | } | |
2111 | } | |
2112 | ||
2113 | if (optind != argc) { | |
2114 | qemu_opts_reset(&reopen_opts); | |
2115 | return qemuio_command_usage(&reopen_cmd); | |
2116 | } | |
2117 | ||
19dbecdc KW |
2118 | if (writethrough != blk_enable_write_cache(blk) && |
2119 | blk_get_attached_dev(blk)) | |
2120 | { | |
2121 | error_report("Cannot change cache.writeback: Device attached"); | |
2122 | qemu_opts_reset(&reopen_opts); | |
2123 | return 0; | |
2124 | } | |
2125 | ||
5bbd2e59 KW |
2126 | qopts = qemu_opts_find(&reopen_opts, NULL); |
2127 | opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : NULL; | |
2128 | qemu_opts_reset(&reopen_opts); | |
2129 | ||
2130 | brq = bdrv_reopen_queue(NULL, bs, opts, flags); | |
2131 | bdrv_reopen_multiple(brq, &local_err); | |
2132 | if (local_err) { | |
2133 | error_report_err(local_err); | |
19dbecdc KW |
2134 | } else { |
2135 | blk_set_enable_write_cache(blk, !writethrough); | |
5bbd2e59 KW |
2136 | } |
2137 | ||
2138 | return 0; | |
2139 | } | |
2140 | ||
4c7b7e9b | 2141 | static int break_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2142 | { |
2143 | int ret; | |
2144 | ||
4c7b7e9b | 2145 | ret = bdrv_debug_breakpoint(blk_bs(blk), argv[1], argv[2]); |
797ac58c KW |
2146 | if (ret < 0) { |
2147 | printf("Could not set breakpoint: %s\n", strerror(-ret)); | |
2148 | } | |
2149 | ||
2150 | return 0; | |
2151 | } | |
2152 | ||
4c7b7e9b | 2153 | static int remove_break_f(BlockBackend *blk, int argc, char **argv) |
4cc70e93 FZ |
2154 | { |
2155 | int ret; | |
2156 | ||
4c7b7e9b | 2157 | ret = bdrv_debug_remove_breakpoint(blk_bs(blk), argv[1]); |
4cc70e93 FZ |
2158 | if (ret < 0) { |
2159 | printf("Could not remove breakpoint %s: %s\n", argv[1], strerror(-ret)); | |
2160 | } | |
2161 | ||
2162 | return 0; | |
2163 | } | |
2164 | ||
797ac58c KW |
2165 | static const cmdinfo_t break_cmd = { |
2166 | .name = "break", | |
2167 | .argmin = 2, | |
2168 | .argmax = 2, | |
2169 | .cfunc = break_f, | |
2170 | .args = "event tag", | |
2171 | .oneline = "sets a breakpoint on event and tags the stopped " | |
2172 | "request as tag", | |
2173 | }; | |
2174 | ||
4cc70e93 FZ |
2175 | static const cmdinfo_t remove_break_cmd = { |
2176 | .name = "remove_break", | |
2177 | .argmin = 1, | |
2178 | .argmax = 1, | |
2179 | .cfunc = remove_break_f, | |
2180 | .args = "tag", | |
2181 | .oneline = "remove a breakpoint by tag", | |
2182 | }; | |
2183 | ||
4c7b7e9b | 2184 | static int resume_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2185 | { |
2186 | int ret; | |
2187 | ||
4c7b7e9b | 2188 | ret = bdrv_debug_resume(blk_bs(blk), argv[1]); |
797ac58c KW |
2189 | if (ret < 0) { |
2190 | printf("Could not resume request: %s\n", strerror(-ret)); | |
2191 | } | |
2192 | ||
2193 | return 0; | |
2194 | } | |
2195 | ||
2196 | static const cmdinfo_t resume_cmd = { | |
2197 | .name = "resume", | |
2198 | .argmin = 1, | |
2199 | .argmax = 1, | |
2200 | .cfunc = resume_f, | |
2201 | .args = "tag", | |
2202 | .oneline = "resumes the request tagged as tag", | |
2203 | }; | |
2204 | ||
4c7b7e9b | 2205 | static int wait_break_f(BlockBackend *blk, int argc, char **argv) |
797ac58c | 2206 | { |
4c7b7e9b HR |
2207 | while (!bdrv_debug_is_suspended(blk_bs(blk), argv[1])) { |
2208 | aio_poll(blk_get_aio_context(blk), true); | |
797ac58c KW |
2209 | } |
2210 | ||
2211 | return 0; | |
2212 | } | |
2213 | ||
2214 | static const cmdinfo_t wait_break_cmd = { | |
2215 | .name = "wait_break", | |
2216 | .argmin = 1, | |
2217 | .argmax = 1, | |
2218 | .cfunc = wait_break_f, | |
2219 | .args = "tag", | |
2220 | .oneline = "waits for the suspension of a request", | |
2221 | }; | |
2222 | ||
4c7b7e9b | 2223 | static int abort_f(BlockBackend *blk, int argc, char **argv) |
797ac58c KW |
2224 | { |
2225 | abort(); | |
2226 | } | |
2227 | ||
2228 | static const cmdinfo_t abort_cmd = { | |
2229 | .name = "abort", | |
2230 | .cfunc = abort_f, | |
2231 | .flags = CMD_NOFILE_OK, | |
2232 | .oneline = "simulate a program crash using abort(3)", | |
2233 | }; | |
2234 | ||
0e82dc7b HR |
2235 | static void sigraise_help(void) |
2236 | { | |
2237 | printf( | |
2238 | "\n" | |
2239 | " raises the given signal\n" | |
2240 | "\n" | |
2241 | " Example:\n" | |
2242 | " 'sigraise %i' - raises SIGTERM\n" | |
2243 | "\n" | |
2244 | " Invokes raise(signal), where \"signal\" is the mandatory integer argument\n" | |
2245 | " given to sigraise.\n" | |
2246 | "\n", SIGTERM); | |
2247 | } | |
2248 | ||
4c7b7e9b | 2249 | static int sigraise_f(BlockBackend *blk, int argc, char **argv); |
0e82dc7b HR |
2250 | |
2251 | static const cmdinfo_t sigraise_cmd = { | |
2252 | .name = "sigraise", | |
2253 | .cfunc = sigraise_f, | |
2254 | .argmin = 1, | |
2255 | .argmax = 1, | |
2256 | .flags = CMD_NOFILE_OK, | |
2257 | .args = "signal", | |
2258 | .oneline = "raises a signal", | |
2259 | .help = sigraise_help, | |
2260 | }; | |
2261 | ||
4c7b7e9b | 2262 | static int sigraise_f(BlockBackend *blk, int argc, char **argv) |
0e82dc7b | 2263 | { |
9b0beaf3 | 2264 | int64_t sig = cvtnum(argv[1]); |
0e82dc7b | 2265 | if (sig < 0) { |
a9ecfa00 | 2266 | print_cvtnum_err(sig, argv[1]); |
0e82dc7b | 2267 | return 0; |
9b0beaf3 JS |
2268 | } else if (sig > NSIG) { |
2269 | printf("signal argument '%s' is too large to be a valid signal\n", | |
2270 | argv[1]); | |
2271 | return 0; | |
0e82dc7b HR |
2272 | } |
2273 | ||
2274 | /* Using raise() to kill this process does not necessarily flush all open | |
2275 | * streams. At least stdout and stderr (although the latter should be | |
2276 | * non-buffered anyway) should be flushed, though. */ | |
2277 | fflush(stdout); | |
2278 | fflush(stderr); | |
2279 | ||
2280 | raise(sig); | |
2281 | return 0; | |
2282 | } | |
2283 | ||
cd33d02a KW |
2284 | static void sleep_cb(void *opaque) |
2285 | { | |
2286 | bool *expired = opaque; | |
2287 | *expired = true; | |
2288 | } | |
2289 | ||
4c7b7e9b | 2290 | static int sleep_f(BlockBackend *blk, int argc, char **argv) |
cd33d02a KW |
2291 | { |
2292 | char *endptr; | |
2293 | long ms; | |
2294 | struct QEMUTimer *timer; | |
2295 | bool expired = false; | |
2296 | ||
2297 | ms = strtol(argv[1], &endptr, 0); | |
2298 | if (ms < 0 || *endptr != '\0') { | |
2299 | printf("%s is not a valid number\n", argv[1]); | |
2300 | return 0; | |
2301 | } | |
2302 | ||
2303 | timer = timer_new_ns(QEMU_CLOCK_HOST, sleep_cb, &expired); | |
2304 | timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_HOST) + SCALE_MS * ms); | |
2305 | ||
2306 | while (!expired) { | |
2307 | main_loop_wait(false); | |
2308 | } | |
2309 | ||
2310 | timer_free(timer); | |
2311 | ||
2312 | return 0; | |
2313 | } | |
2314 | ||
2315 | static const cmdinfo_t sleep_cmd = { | |
2316 | .name = "sleep", | |
2317 | .argmin = 1, | |
2318 | .argmax = 1, | |
2319 | .cfunc = sleep_f, | |
2320 | .flags = CMD_NOFILE_OK, | |
2321 | .oneline = "waits for the given value in milliseconds", | |
2322 | }; | |
2323 | ||
f18a834a KW |
2324 | static void help_oneline(const char *cmd, const cmdinfo_t *ct) |
2325 | { | |
2326 | if (cmd) { | |
2327 | printf("%s ", cmd); | |
2328 | } else { | |
2329 | printf("%s ", ct->name); | |
2330 | if (ct->altname) { | |
2331 | printf("(or %s) ", ct->altname); | |
2332 | } | |
2333 | } | |
2334 | ||
2335 | if (ct->args) { | |
2336 | printf("%s ", ct->args); | |
2337 | } | |
2338 | printf("-- %s\n", ct->oneline); | |
2339 | } | |
2340 | ||
2341 | static void help_onecmd(const char *cmd, const cmdinfo_t *ct) | |
2342 | { | |
2343 | help_oneline(cmd, ct); | |
2344 | if (ct->help) { | |
2345 | ct->help(); | |
2346 | } | |
2347 | } | |
2348 | ||
2349 | static void help_all(void) | |
2350 | { | |
2351 | const cmdinfo_t *ct; | |
2352 | ||
2353 | for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { | |
2354 | help_oneline(ct->name, ct); | |
2355 | } | |
2356 | printf("\nUse 'help commandname' for extended help.\n"); | |
2357 | } | |
2358 | ||
4c7b7e9b | 2359 | static int help_f(BlockBackend *blk, int argc, char **argv) |
f18a834a KW |
2360 | { |
2361 | const cmdinfo_t *ct; | |
2362 | ||
2363 | if (argc == 1) { | |
2364 | help_all(); | |
2365 | return 0; | |
2366 | } | |
2367 | ||
2368 | ct = find_command(argv[1]); | |
2369 | if (ct == NULL) { | |
2370 | printf("command %s not found\n", argv[1]); | |
2371 | return 0; | |
2372 | } | |
2373 | ||
2374 | help_onecmd(argv[1], ct); | |
2375 | return 0; | |
2376 | } | |
2377 | ||
2378 | static const cmdinfo_t help_cmd = { | |
2379 | .name = "help", | |
2380 | .altname = "?", | |
2381 | .cfunc = help_f, | |
2382 | .argmin = 0, | |
2383 | .argmax = 1, | |
2384 | .flags = CMD_FLAG_GLOBAL, | |
2385 | .args = "[command]", | |
2386 | .oneline = "help for one or all commands", | |
2387 | }; | |
2388 | ||
4c7b7e9b | 2389 | bool qemuio_command(BlockBackend *blk, const char *cmd) |
dd583296 KW |
2390 | { |
2391 | char *input; | |
2392 | const cmdinfo_t *ct; | |
2393 | char **v; | |
2394 | int c; | |
2395 | bool done = false; | |
2396 | ||
2397 | input = g_strdup(cmd); | |
2398 | v = breakline(input, &c); | |
2399 | if (c) { | |
2400 | ct = find_command(v[0]); | |
2401 | if (ct) { | |
4c7b7e9b | 2402 | done = command(blk, ct, c, v); |
dd583296 KW |
2403 | } else { |
2404 | fprintf(stderr, "command \"%s\" not found\n", v[0]); | |
2405 | } | |
2406 | } | |
2407 | g_free(input); | |
2408 | g_free(v); | |
2409 | ||
2410 | return done; | |
2411 | } | |
2412 | ||
797ac58c KW |
2413 | static void __attribute((constructor)) init_qemuio_commands(void) |
2414 | { | |
2415 | /* initialize commands */ | |
c2cdf5c5 KW |
2416 | qemuio_add_command(&help_cmd); |
2417 | qemuio_add_command(&read_cmd); | |
2418 | qemuio_add_command(&readv_cmd); | |
2419 | qemuio_add_command(&write_cmd); | |
2420 | qemuio_add_command(&writev_cmd); | |
2421 | qemuio_add_command(&multiwrite_cmd); | |
2422 | qemuio_add_command(&aio_read_cmd); | |
2423 | qemuio_add_command(&aio_write_cmd); | |
2424 | qemuio_add_command(&aio_flush_cmd); | |
2425 | qemuio_add_command(&flush_cmd); | |
2426 | qemuio_add_command(&truncate_cmd); | |
2427 | qemuio_add_command(&length_cmd); | |
2428 | qemuio_add_command(&info_cmd); | |
2429 | qemuio_add_command(&discard_cmd); | |
2430 | qemuio_add_command(&alloc_cmd); | |
2431 | qemuio_add_command(&map_cmd); | |
5bbd2e59 | 2432 | qemuio_add_command(&reopen_cmd); |
c2cdf5c5 | 2433 | qemuio_add_command(&break_cmd); |
4cc70e93 | 2434 | qemuio_add_command(&remove_break_cmd); |
c2cdf5c5 KW |
2435 | qemuio_add_command(&resume_cmd); |
2436 | qemuio_add_command(&wait_break_cmd); | |
2437 | qemuio_add_command(&abort_cmd); | |
cd33d02a | 2438 | qemuio_add_command(&sleep_cmd); |
0e82dc7b | 2439 | qemuio_add_command(&sigraise_cmd); |
797ac58c | 2440 | } |