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