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Commit | Line | Data |
---|---|---|
e3aff4f6 AL |
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 | */ | |
c32d766a | 10 | #include <sys/time.h> |
e3aff4f6 AL |
11 | #include <sys/types.h> |
12 | #include <stdarg.h> | |
13 | #include <stdio.h> | |
14 | #include <getopt.h> | |
c32d766a | 15 | #include <libgen.h> |
e3aff4f6 AL |
16 | |
17 | #include "qemu-common.h" | |
18 | #include "block_int.h" | |
19 | #include "cmd.h" | |
20 | ||
21 | #define VERSION "0.0.1" | |
22 | ||
23 | #define CMD_NOFILE_OK 0x01 | |
24 | ||
25 | char *progname; | |
26 | static BlockDriverState *bs; | |
27 | ||
28 | static int misalign; | |
29 | ||
cf070d7e CH |
30 | /* |
31 | * Parse the pattern argument to various sub-commands. | |
32 | * | |
33 | * Because the pattern is used as an argument to memset it must evaluate | |
34 | * to an unsigned integer that fits into a single byte. | |
35 | */ | |
36 | static int parse_pattern(const char *arg) | |
37 | { | |
38 | char *endptr = NULL; | |
39 | long pattern; | |
40 | ||
41 | pattern = strtol(arg, &endptr, 0); | |
42 | if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { | |
43 | printf("%s is not a valid pattern byte\n", arg); | |
44 | return -1; | |
45 | } | |
46 | ||
47 | return pattern; | |
48 | } | |
49 | ||
e3aff4f6 AL |
50 | /* |
51 | * Memory allocation helpers. | |
52 | * | |
53 | * Make sure memory is aligned by default, or purposefully misaligned if | |
54 | * that is specified on the command line. | |
55 | */ | |
56 | ||
57 | #define MISALIGN_OFFSET 16 | |
58 | static void *qemu_io_alloc(size_t len, int pattern) | |
59 | { | |
60 | void *buf; | |
61 | ||
62 | if (misalign) | |
63 | len += MISALIGN_OFFSET; | |
64 | buf = qemu_memalign(512, len); | |
65 | memset(buf, pattern, len); | |
66 | if (misalign) | |
67 | buf += MISALIGN_OFFSET; | |
68 | return buf; | |
69 | } | |
70 | ||
71 | static void qemu_io_free(void *p) | |
72 | { | |
73 | if (misalign) | |
74 | p -= MISALIGN_OFFSET; | |
75 | qemu_vfree(p); | |
76 | } | |
77 | ||
78 | static void | |
3abcdf49 | 79 | dump_buffer(const void *buffer, int64_t offset, int len) |
e3aff4f6 AL |
80 | { |
81 | int i, j; | |
3abcdf49 | 82 | const uint8_t *p; |
e3aff4f6 AL |
83 | |
84 | for (i = 0, p = buffer; i < len; i += 16) { | |
3abcdf49 | 85 | const uint8_t *s = p; |
e3aff4f6 AL |
86 | |
87 | printf("%08llx: ", (unsigned long long)offset + i); | |
88 | for (j = 0; j < 16 && i + j < len; j++, p++) | |
89 | printf("%02x ", *p); | |
90 | printf(" "); | |
91 | for (j = 0; j < 16 && i + j < len; j++, s++) { | |
3abcdf49 | 92 | if (isalnum(*s)) |
e3aff4f6 AL |
93 | printf("%c", *s); |
94 | else | |
95 | printf("."); | |
96 | } | |
97 | printf("\n"); | |
98 | } | |
99 | } | |
100 | ||
101 | static void | |
102 | print_report(const char *op, struct timeval *t, int64_t offset, | |
103 | int count, int total, int cnt, int Cflag) | |
104 | { | |
105 | char s1[64], s2[64], ts[64]; | |
106 | ||
107 | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); | |
108 | if (!Cflag) { | |
109 | cvtstr((double)total, s1, sizeof(s1)); | |
110 | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); | |
111 | printf("%s %d/%d bytes at offset %lld\n", | |
112 | op, total, count, (long long)offset); | |
113 | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", | |
114 | s1, cnt, ts, s2, tdiv((double)cnt, *t)); | |
115 | } else {/* bytes,ops,time,bytes/sec,ops/sec */ | |
116 | printf("%d,%d,%s,%.3f,%.3f\n", | |
117 | total, cnt, ts, | |
118 | tdiv((double)total, *t), | |
119 | tdiv((double)cnt, *t)); | |
120 | } | |
121 | } | |
122 | ||
cf57298a CH |
123 | /* |
124 | * Parse multiple length statements for vectored I/O, and construct an I/O | |
125 | * vector matching it. | |
126 | */ | |
127 | static void * | |
128 | create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern) | |
129 | { | |
130 | size_t *sizes = calloc(nr_iov, sizeof(size_t)); | |
131 | size_t count = 0; | |
132 | void *buf, *p; | |
133 | int i; | |
134 | ||
135 | for (i = 0; i < nr_iov; i++) { | |
136 | char *arg = argv[i]; | |
137 | long long len; | |
138 | ||
139 | len = cvtnum(arg); | |
140 | if (len < 0) { | |
141 | printf("non-numeric length argument -- %s\n", arg); | |
142 | return NULL; | |
143 | } | |
144 | ||
145 | /* should be SIZE_T_MAX, but that doesn't exist */ | |
146 | if (len > UINT_MAX) { | |
147 | printf("too large length argument -- %s\n", arg); | |
148 | return NULL; | |
149 | } | |
150 | ||
151 | if (len & 0x1ff) { | |
152 | printf("length argument %lld is not sector aligned\n", | |
153 | len); | |
154 | return NULL; | |
155 | } | |
156 | ||
157 | sizes[i] = len; | |
158 | count += len; | |
159 | } | |
160 | ||
161 | qemu_iovec_init(qiov, nr_iov); | |
162 | ||
163 | buf = p = qemu_io_alloc(count, pattern); | |
164 | ||
165 | for (i = 0; i < nr_iov; i++) { | |
166 | qemu_iovec_add(qiov, p, sizes[i]); | |
167 | p += sizes[i]; | |
168 | } | |
169 | ||
170 | free(sizes); | |
171 | return buf; | |
172 | } | |
173 | ||
e3aff4f6 AL |
174 | static int do_read(char *buf, int64_t offset, int count, int *total) |
175 | { | |
176 | int ret; | |
177 | ||
178 | ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9); | |
179 | if (ret < 0) | |
180 | return ret; | |
181 | *total = count; | |
182 | return 1; | |
183 | } | |
184 | ||
185 | static int do_write(char *buf, int64_t offset, int count, int *total) | |
186 | { | |
187 | int ret; | |
188 | ||
189 | ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9); | |
190 | if (ret < 0) | |
191 | return ret; | |
192 | *total = count; | |
193 | return 1; | |
194 | } | |
195 | ||
196 | static int do_pread(char *buf, int64_t offset, int count, int *total) | |
197 | { | |
198 | *total = bdrv_pread(bs, offset, (uint8_t *)buf, count); | |
199 | if (*total < 0) | |
200 | return *total; | |
201 | return 1; | |
202 | } | |
203 | ||
204 | static int do_pwrite(char *buf, int64_t offset, int count, int *total) | |
205 | { | |
206 | *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count); | |
207 | if (*total < 0) | |
208 | return *total; | |
209 | return 1; | |
210 | } | |
211 | ||
ca94dbc7 KW |
212 | static int do_load_vmstate(char *buf, int64_t offset, int count, int *total) |
213 | { | |
214 | *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count); | |
215 | if (*total < 0) | |
216 | return *total; | |
217 | return 1; | |
218 | } | |
219 | ||
220 | static int do_save_vmstate(char *buf, int64_t offset, int count, int *total) | |
221 | { | |
222 | *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count); | |
223 | if (*total < 0) | |
224 | return *total; | |
225 | return 1; | |
226 | } | |
227 | ||
e3aff4f6 AL |
228 | #define NOT_DONE 0x7fffffff |
229 | static void aio_rw_done(void *opaque, int ret) | |
230 | { | |
231 | *(int *)opaque = ret; | |
232 | } | |
233 | ||
234 | static int do_aio_readv(QEMUIOVector *qiov, int64_t offset, int *total) | |
235 | { | |
236 | BlockDriverAIOCB *acb; | |
237 | int async_ret = NOT_DONE; | |
238 | ||
239 | acb = bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9, | |
240 | aio_rw_done, &async_ret); | |
241 | if (!acb) | |
242 | return -EIO; | |
243 | ||
244 | while (async_ret == NOT_DONE) | |
245 | qemu_aio_wait(); | |
246 | ||
247 | *total = qiov->size; | |
248 | return async_ret < 0 ? async_ret : 1; | |
249 | } | |
250 | ||
251 | static int do_aio_writev(QEMUIOVector *qiov, int64_t offset, int *total) | |
252 | { | |
253 | BlockDriverAIOCB *acb; | |
254 | int async_ret = NOT_DONE; | |
255 | ||
256 | acb = bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9, | |
257 | aio_rw_done, &async_ret); | |
258 | if (!acb) | |
259 | return -EIO; | |
260 | ||
261 | while (async_ret == NOT_DONE) | |
262 | qemu_aio_wait(); | |
263 | ||
7e9bbc9f | 264 | *total = qiov->size; |
e3aff4f6 AL |
265 | return async_ret < 0 ? async_ret : 1; |
266 | } | |
267 | ||
268 | ||
e3aff4f6 AL |
269 | static void |
270 | read_help(void) | |
271 | { | |
272 | printf( | |
273 | "\n" | |
274 | " reads a range of bytes from the given offset\n" | |
275 | "\n" | |
276 | " Example:\n" | |
277 | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" | |
278 | "\n" | |
279 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
280 | " standard output stream (with -v option) for subsequent inspection.\n" | |
ca94dbc7 | 281 | " -b, -- read from the VM state rather than the virtual disk\n" |
d9654a58 KW |
282 | " -C, -- report statistics in a machine parsable format\n" |
283 | " -l, -- length for pattern verification (only with -P)\n" | |
e3aff4f6 | 284 | " -p, -- use bdrv_pread to read the file\n" |
c48101ae | 285 | " -P, -- use a pattern to verify read data\n" |
e3aff4f6 | 286 | " -q, -- quite mode, do not show I/O statistics\n" |
d9654a58 KW |
287 | " -s, -- start offset for pattern verification (only with -P)\n" |
288 | " -v, -- dump buffer to standard output\n" | |
e3aff4f6 AL |
289 | "\n"); |
290 | } | |
291 | ||
22a2bdcb BS |
292 | static int read_f(int argc, char **argv); |
293 | ||
294 | static const cmdinfo_t read_cmd = { | |
295 | .name = "read", | |
296 | .altname = "r", | |
297 | .cfunc = read_f, | |
298 | .argmin = 2, | |
299 | .argmax = -1, | |
300 | .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len", | |
301 | .oneline = "reads a number of bytes at a specified offset", | |
302 | .help = read_help, | |
303 | }; | |
304 | ||
e3aff4f6 AL |
305 | static int |
306 | read_f(int argc, char **argv) | |
307 | { | |
308 | struct timeval t1, t2; | |
309 | int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; | |
ca94dbc7 | 310 | int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; |
e3aff4f6 AL |
311 | int c, cnt; |
312 | char *buf; | |
313 | int64_t offset; | |
d4ec5228 PB |
314 | int count; |
315 | /* Some compilers get confused and warn if this is not initialized. */ | |
316 | int total = 0; | |
d9654a58 | 317 | int pattern = 0, pattern_offset = 0, pattern_count = 0; |
e3aff4f6 | 318 | |
ca94dbc7 | 319 | while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) { |
e3aff4f6 | 320 | switch (c) { |
ca94dbc7 KW |
321 | case 'b': |
322 | bflag = 1; | |
323 | break; | |
e3aff4f6 AL |
324 | case 'C': |
325 | Cflag = 1; | |
326 | break; | |
d9654a58 KW |
327 | case 'l': |
328 | lflag = 1; | |
329 | pattern_count = cvtnum(optarg); | |
330 | if (pattern_count < 0) { | |
331 | printf("non-numeric length argument -- %s\n", optarg); | |
332 | return 0; | |
333 | } | |
334 | break; | |
e3aff4f6 AL |
335 | case 'p': |
336 | pflag = 1; | |
337 | break; | |
c48101ae AL |
338 | case 'P': |
339 | Pflag = 1; | |
cf070d7e CH |
340 | pattern = parse_pattern(optarg); |
341 | if (pattern < 0) | |
342 | return 0; | |
c48101ae | 343 | break; |
e3aff4f6 AL |
344 | case 'q': |
345 | qflag = 1; | |
346 | break; | |
d9654a58 KW |
347 | case 's': |
348 | sflag = 1; | |
349 | pattern_offset = cvtnum(optarg); | |
350 | if (pattern_offset < 0) { | |
351 | printf("non-numeric length argument -- %s\n", optarg); | |
352 | return 0; | |
353 | } | |
354 | break; | |
e3aff4f6 AL |
355 | case 'v': |
356 | vflag = 1; | |
357 | break; | |
358 | default: | |
359 | return command_usage(&read_cmd); | |
360 | } | |
361 | } | |
362 | ||
363 | if (optind != argc - 2) | |
364 | return command_usage(&read_cmd); | |
365 | ||
ca94dbc7 KW |
366 | if (bflag && pflag) { |
367 | printf("-b and -p cannot be specified at the same time\n"); | |
368 | return 0; | |
369 | } | |
370 | ||
e3aff4f6 AL |
371 | offset = cvtnum(argv[optind]); |
372 | if (offset < 0) { | |
373 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
374 | return 0; | |
375 | } | |
376 | ||
377 | optind++; | |
378 | count = cvtnum(argv[optind]); | |
379 | if (count < 0) { | |
380 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
381 | return 0; | |
382 | } | |
383 | ||
d9654a58 KW |
384 | if (!Pflag && (lflag || sflag)) { |
385 | return command_usage(&read_cmd); | |
386 | } | |
387 | ||
388 | if (!lflag) { | |
389 | pattern_count = count - pattern_offset; | |
390 | } | |
391 | ||
392 | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { | |
393 | printf("pattern verfication range exceeds end of read data\n"); | |
394 | return 0; | |
395 | } | |
396 | ||
e3aff4f6 AL |
397 | if (!pflag) |
398 | if (offset & 0x1ff) { | |
399 | printf("offset %lld is not sector aligned\n", | |
400 | (long long)offset); | |
401 | return 0; | |
402 | ||
403 | if (count & 0x1ff) { | |
404 | printf("count %d is not sector aligned\n", | |
405 | count); | |
406 | return 0; | |
407 | } | |
408 | } | |
409 | ||
410 | buf = qemu_io_alloc(count, 0xab); | |
411 | ||
412 | gettimeofday(&t1, NULL); | |
413 | if (pflag) | |
414 | cnt = do_pread(buf, offset, count, &total); | |
ca94dbc7 KW |
415 | else if (bflag) |
416 | cnt = do_load_vmstate(buf, offset, count, &total); | |
e3aff4f6 AL |
417 | else |
418 | cnt = do_read(buf, offset, count, &total); | |
419 | gettimeofday(&t2, NULL); | |
420 | ||
421 | if (cnt < 0) { | |
422 | printf("read failed: %s\n", strerror(-cnt)); | |
7d8abfcb | 423 | goto out; |
e3aff4f6 AL |
424 | } |
425 | ||
c48101ae | 426 | if (Pflag) { |
d9654a58 KW |
427 | void* cmp_buf = malloc(pattern_count); |
428 | memset(cmp_buf, pattern, pattern_count); | |
429 | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { | |
c48101ae AL |
430 | printf("Pattern verification failed at offset %lld, " |
431 | "%d bytes\n", | |
d9654a58 | 432 | (long long) offset + pattern_offset, pattern_count); |
c48101ae AL |
433 | } |
434 | free(cmp_buf); | |
435 | } | |
436 | ||
e3aff4f6 | 437 | if (qflag) |
7d8abfcb | 438 | goto out; |
e3aff4f6 AL |
439 | |
440 | if (vflag) | |
441 | dump_buffer(buf, offset, count); | |
442 | ||
443 | /* Finally, report back -- -C gives a parsable format */ | |
444 | t2 = tsub(t2, t1); | |
445 | print_report("read", &t2, offset, count, total, cnt, Cflag); | |
446 | ||
7d8abfcb | 447 | out: |
e3aff4f6 AL |
448 | qemu_io_free(buf); |
449 | ||
450 | return 0; | |
451 | } | |
452 | ||
e3aff4f6 AL |
453 | static void |
454 | readv_help(void) | |
455 | { | |
456 | printf( | |
457 | "\n" | |
458 | " reads a range of bytes from the given offset into multiple buffers\n" | |
459 | "\n" | |
460 | " Example:\n" | |
461 | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
462 | "\n" | |
463 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
464 | " standard output stream (with -v option) for subsequent inspection.\n" | |
465 | " Uses multiple iovec buffers if more than one byte range is specified.\n" | |
466 | " -C, -- report statistics in a machine parsable format\n" | |
c48101ae | 467 | " -P, -- use a pattern to verify read data\n" |
e3aff4f6 AL |
468 | " -v, -- dump buffer to standard output\n" |
469 | " -q, -- quite mode, do not show I/O statistics\n" | |
470 | "\n"); | |
471 | } | |
472 | ||
22a2bdcb BS |
473 | static int readv_f(int argc, char **argv); |
474 | ||
475 | static const cmdinfo_t readv_cmd = { | |
476 | .name = "readv", | |
477 | .cfunc = readv_f, | |
478 | .argmin = 2, | |
479 | .argmax = -1, | |
480 | .args = "[-Cqv] [-P pattern ] off len [len..]", | |
481 | .oneline = "reads a number of bytes at a specified offset", | |
482 | .help = readv_help, | |
483 | }; | |
484 | ||
e3aff4f6 AL |
485 | static int |
486 | readv_f(int argc, char **argv) | |
487 | { | |
488 | struct timeval t1, t2; | |
489 | int Cflag = 0, qflag = 0, vflag = 0; | |
490 | int c, cnt; | |
cf57298a | 491 | char *buf; |
e3aff4f6 | 492 | int64_t offset; |
cf57298a CH |
493 | int total; |
494 | int nr_iov; | |
e3aff4f6 | 495 | QEMUIOVector qiov; |
c48101ae AL |
496 | int pattern = 0; |
497 | int Pflag = 0; | |
e3aff4f6 | 498 | |
c48101ae | 499 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
e3aff4f6 AL |
500 | switch (c) { |
501 | case 'C': | |
502 | Cflag = 1; | |
503 | break; | |
c48101ae AL |
504 | case 'P': |
505 | Pflag = 1; | |
cf070d7e CH |
506 | pattern = parse_pattern(optarg); |
507 | if (pattern < 0) | |
508 | return 0; | |
c48101ae | 509 | break; |
e3aff4f6 AL |
510 | case 'q': |
511 | qflag = 1; | |
512 | break; | |
513 | case 'v': | |
514 | vflag = 1; | |
515 | break; | |
516 | default: | |
517 | return command_usage(&readv_cmd); | |
518 | } | |
519 | } | |
520 | ||
521 | if (optind > argc - 2) | |
522 | return command_usage(&readv_cmd); | |
523 | ||
524 | ||
525 | offset = cvtnum(argv[optind]); | |
526 | if (offset < 0) { | |
527 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
528 | return 0; | |
529 | } | |
530 | optind++; | |
531 | ||
532 | if (offset & 0x1ff) { | |
533 | printf("offset %lld is not sector aligned\n", | |
534 | (long long)offset); | |
535 | return 0; | |
536 | } | |
537 | ||
e3aff4f6 | 538 | nr_iov = argc - optind; |
cf57298a | 539 | buf = create_iovec(&qiov, &argv[optind], nr_iov, 0xab); |
e3aff4f6 AL |
540 | |
541 | gettimeofday(&t1, NULL); | |
542 | cnt = do_aio_readv(&qiov, offset, &total); | |
543 | gettimeofday(&t2, NULL); | |
544 | ||
545 | if (cnt < 0) { | |
546 | printf("readv failed: %s\n", strerror(-cnt)); | |
7d8abfcb | 547 | goto out; |
e3aff4f6 AL |
548 | } |
549 | ||
c48101ae | 550 | if (Pflag) { |
cf57298a CH |
551 | void* cmp_buf = malloc(qiov.size); |
552 | memset(cmp_buf, pattern, qiov.size); | |
553 | if (memcmp(buf, cmp_buf, qiov.size)) { | |
c48101ae | 554 | printf("Pattern verification failed at offset %lld, " |
cf57298a CH |
555 | "%zd bytes\n", |
556 | (long long) offset, qiov.size); | |
c48101ae AL |
557 | } |
558 | free(cmp_buf); | |
559 | } | |
560 | ||
e3aff4f6 | 561 | if (qflag) |
7d8abfcb | 562 | goto out; |
e3aff4f6 AL |
563 | |
564 | if (vflag) | |
565 | dump_buffer(buf, offset, qiov.size); | |
566 | ||
567 | /* Finally, report back -- -C gives a parsable format */ | |
568 | t2 = tsub(t2, t1); | |
569 | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); | |
570 | ||
7d8abfcb | 571 | out: |
e3aff4f6 | 572 | qemu_io_free(buf); |
e3aff4f6 AL |
573 | return 0; |
574 | } | |
575 | ||
e3aff4f6 AL |
576 | static void |
577 | write_help(void) | |
578 | { | |
579 | printf( | |
580 | "\n" | |
581 | " writes a range of bytes from the given offset\n" | |
582 | "\n" | |
583 | " Example:\n" | |
584 | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" | |
585 | "\n" | |
586 | " Writes into a segment of the currently open file, using a buffer\n" | |
587 | " filled with a set pattern (0xcdcdcdcd).\n" | |
ca94dbc7 | 588 | " -b, -- write to the VM state rather than the virtual disk\n" |
e3aff4f6 AL |
589 | " -p, -- use bdrv_pwrite to write the file\n" |
590 | " -P, -- use different pattern to fill file\n" | |
591 | " -C, -- report statistics in a machine parsable format\n" | |
592 | " -q, -- quite mode, do not show I/O statistics\n" | |
593 | "\n"); | |
594 | } | |
595 | ||
22a2bdcb BS |
596 | static int write_f(int argc, char **argv); |
597 | ||
598 | static const cmdinfo_t write_cmd = { | |
599 | .name = "write", | |
600 | .altname = "w", | |
601 | .cfunc = write_f, | |
602 | .argmin = 2, | |
603 | .argmax = -1, | |
604 | .args = "[-abCpq] [-P pattern ] off len", | |
605 | .oneline = "writes a number of bytes at a specified offset", | |
606 | .help = write_help, | |
607 | }; | |
608 | ||
e3aff4f6 AL |
609 | static int |
610 | write_f(int argc, char **argv) | |
611 | { | |
612 | struct timeval t1, t2; | |
ca94dbc7 | 613 | int Cflag = 0, pflag = 0, qflag = 0, bflag = 0; |
e3aff4f6 AL |
614 | int c, cnt; |
615 | char *buf; | |
616 | int64_t offset; | |
d4ec5228 PB |
617 | int count; |
618 | /* Some compilers get confused and warn if this is not initialized. */ | |
619 | int total = 0; | |
e3aff4f6 AL |
620 | int pattern = 0xcd; |
621 | ||
ca94dbc7 | 622 | while ((c = getopt(argc, argv, "bCpP:q")) != EOF) { |
e3aff4f6 | 623 | switch (c) { |
ca94dbc7 KW |
624 | case 'b': |
625 | bflag = 1; | |
626 | break; | |
e3aff4f6 AL |
627 | case 'C': |
628 | Cflag = 1; | |
629 | break; | |
630 | case 'p': | |
631 | pflag = 1; | |
632 | break; | |
633 | case 'P': | |
cf070d7e CH |
634 | pattern = parse_pattern(optarg); |
635 | if (pattern < 0) | |
636 | return 0; | |
e3aff4f6 AL |
637 | break; |
638 | case 'q': | |
639 | qflag = 1; | |
640 | break; | |
641 | default: | |
642 | return command_usage(&write_cmd); | |
643 | } | |
644 | } | |
645 | ||
646 | if (optind != argc - 2) | |
647 | return command_usage(&write_cmd); | |
648 | ||
ca94dbc7 KW |
649 | if (bflag && pflag) { |
650 | printf("-b and -p cannot be specified at the same time\n"); | |
651 | return 0; | |
652 | } | |
653 | ||
e3aff4f6 AL |
654 | offset = cvtnum(argv[optind]); |
655 | if (offset < 0) { | |
656 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
657 | return 0; | |
658 | } | |
659 | ||
660 | optind++; | |
661 | count = cvtnum(argv[optind]); | |
662 | if (count < 0) { | |
663 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
664 | return 0; | |
665 | } | |
666 | ||
667 | if (!pflag) { | |
668 | if (offset & 0x1ff) { | |
669 | printf("offset %lld is not sector aligned\n", | |
670 | (long long)offset); | |
671 | return 0; | |
672 | } | |
673 | ||
674 | if (count & 0x1ff) { | |
675 | printf("count %d is not sector aligned\n", | |
676 | count); | |
677 | return 0; | |
678 | } | |
679 | } | |
680 | ||
681 | buf = qemu_io_alloc(count, pattern); | |
682 | ||
683 | gettimeofday(&t1, NULL); | |
684 | if (pflag) | |
685 | cnt = do_pwrite(buf, offset, count, &total); | |
ca94dbc7 KW |
686 | else if (bflag) |
687 | cnt = do_save_vmstate(buf, offset, count, &total); | |
e3aff4f6 AL |
688 | else |
689 | cnt = do_write(buf, offset, count, &total); | |
690 | gettimeofday(&t2, NULL); | |
691 | ||
692 | if (cnt < 0) { | |
693 | printf("write failed: %s\n", strerror(-cnt)); | |
7d8abfcb | 694 | goto out; |
e3aff4f6 AL |
695 | } |
696 | ||
697 | if (qflag) | |
7d8abfcb | 698 | goto out; |
e3aff4f6 AL |
699 | |
700 | /* Finally, report back -- -C gives a parsable format */ | |
701 | t2 = tsub(t2, t1); | |
702 | print_report("wrote", &t2, offset, count, total, cnt, Cflag); | |
703 | ||
7d8abfcb | 704 | out: |
e3aff4f6 AL |
705 | qemu_io_free(buf); |
706 | ||
707 | return 0; | |
708 | } | |
709 | ||
e3aff4f6 AL |
710 | static void |
711 | writev_help(void) | |
712 | { | |
713 | printf( | |
714 | "\n" | |
715 | " writes a range of bytes from the given offset source from multiple buffers\n" | |
716 | "\n" | |
717 | " Example:\n" | |
718 | " 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" | |
719 | "\n" | |
720 | " Writes into a segment of the currently open file, using a buffer\n" | |
721 | " filled with a set pattern (0xcdcdcdcd).\n" | |
722 | " -P, -- use different pattern to fill file\n" | |
723 | " -C, -- report statistics in a machine parsable format\n" | |
724 | " -q, -- quite mode, do not show I/O statistics\n" | |
725 | "\n"); | |
726 | } | |
727 | ||
22a2bdcb BS |
728 | static int writev_f(int argc, char **argv); |
729 | ||
730 | static const cmdinfo_t writev_cmd = { | |
731 | .name = "writev", | |
732 | .cfunc = writev_f, | |
733 | .argmin = 2, | |
734 | .argmax = -1, | |
735 | .args = "[-Cq] [-P pattern ] off len [len..]", | |
736 | .oneline = "writes a number of bytes at a specified offset", | |
737 | .help = writev_help, | |
738 | }; | |
739 | ||
e3aff4f6 AL |
740 | static int |
741 | writev_f(int argc, char **argv) | |
742 | { | |
743 | struct timeval t1, t2; | |
744 | int Cflag = 0, qflag = 0; | |
745 | int c, cnt; | |
cf57298a | 746 | char *buf; |
e3aff4f6 | 747 | int64_t offset; |
cf57298a CH |
748 | int total; |
749 | int nr_iov; | |
e3aff4f6 AL |
750 | int pattern = 0xcd; |
751 | QEMUIOVector qiov; | |
752 | ||
753 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { | |
754 | switch (c) { | |
755 | case 'C': | |
756 | Cflag = 1; | |
757 | break; | |
758 | case 'q': | |
759 | qflag = 1; | |
760 | break; | |
761 | case 'P': | |
cf070d7e CH |
762 | pattern = parse_pattern(optarg); |
763 | if (pattern < 0) | |
764 | return 0; | |
e3aff4f6 AL |
765 | break; |
766 | default: | |
767 | return command_usage(&writev_cmd); | |
768 | } | |
769 | } | |
770 | ||
771 | if (optind > argc - 2) | |
772 | return command_usage(&writev_cmd); | |
773 | ||
774 | offset = cvtnum(argv[optind]); | |
775 | if (offset < 0) { | |
776 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
777 | return 0; | |
778 | } | |
779 | optind++; | |
780 | ||
781 | if (offset & 0x1ff) { | |
782 | printf("offset %lld is not sector aligned\n", | |
783 | (long long)offset); | |
784 | return 0; | |
785 | } | |
786 | ||
e3aff4f6 | 787 | nr_iov = argc - optind; |
cf57298a | 788 | buf = create_iovec(&qiov, &argv[optind], nr_iov, pattern); |
e3aff4f6 AL |
789 | |
790 | gettimeofday(&t1, NULL); | |
791 | cnt = do_aio_writev(&qiov, offset, &total); | |
792 | gettimeofday(&t2, NULL); | |
793 | ||
794 | if (cnt < 0) { | |
795 | printf("writev failed: %s\n", strerror(-cnt)); | |
7d8abfcb | 796 | goto out; |
e3aff4f6 AL |
797 | } |
798 | ||
799 | if (qflag) | |
7d8abfcb | 800 | goto out; |
e3aff4f6 AL |
801 | |
802 | /* Finally, report back -- -C gives a parsable format */ | |
803 | t2 = tsub(t2, t1); | |
804 | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); | |
7d8abfcb | 805 | out: |
e3aff4f6 | 806 | qemu_io_free(buf); |
e3aff4f6 AL |
807 | return 0; |
808 | } | |
809 | ||
95533d5f CH |
810 | struct aio_ctx { |
811 | QEMUIOVector qiov; | |
812 | int64_t offset; | |
813 | char *buf; | |
814 | int qflag; | |
815 | int vflag; | |
816 | int Cflag; | |
817 | int Pflag; | |
818 | int pattern; | |
819 | struct timeval t1; | |
820 | }; | |
821 | ||
822 | static void | |
823 | aio_write_done(void *opaque, int ret) | |
824 | { | |
825 | struct aio_ctx *ctx = opaque; | |
826 | struct timeval t2; | |
95533d5f CH |
827 | |
828 | gettimeofday(&t2, NULL); | |
829 | ||
95533d5f CH |
830 | |
831 | if (ret < 0) { | |
832 | printf("aio_write failed: %s\n", strerror(-ret)); | |
7d8abfcb | 833 | goto out; |
95533d5f CH |
834 | } |
835 | ||
230d4fa4 | 836 | if (ctx->qflag) { |
7d8abfcb | 837 | goto out; |
230d4fa4 | 838 | } |
95533d5f CH |
839 | |
840 | /* Finally, report back -- -C gives a parsable format */ | |
841 | t2 = tsub(t2, ctx->t1); | |
230d4fa4 CH |
842 | print_report("wrote", &t2, ctx->offset, ctx->qiov.size, |
843 | ctx->qiov.size, 1, ctx->Cflag); | |
7d8abfcb | 844 | out: |
95533d5f CH |
845 | qemu_io_free(ctx->buf); |
846 | free(ctx); | |
847 | } | |
848 | ||
95533d5f CH |
849 | static void |
850 | aio_read_done(void *opaque, int ret) | |
851 | { | |
852 | struct aio_ctx *ctx = opaque; | |
853 | struct timeval t2; | |
95533d5f CH |
854 | |
855 | gettimeofday(&t2, NULL); | |
856 | ||
95533d5f CH |
857 | if (ret < 0) { |
858 | printf("readv failed: %s\n", strerror(-ret)); | |
7d8abfcb | 859 | goto out; |
95533d5f CH |
860 | } |
861 | ||
862 | if (ctx->Pflag) { | |
230d4fa4 | 863 | void *cmp_buf = malloc(ctx->qiov.size); |
95533d5f | 864 | |
230d4fa4 CH |
865 | memset(cmp_buf, ctx->pattern, ctx->qiov.size); |
866 | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { | |
95533d5f | 867 | printf("Pattern verification failed at offset %lld, " |
230d4fa4 CH |
868 | "%zd bytes\n", |
869 | (long long) ctx->offset, ctx->qiov.size); | |
95533d5f CH |
870 | } |
871 | free(cmp_buf); | |
872 | } | |
873 | ||
230d4fa4 | 874 | if (ctx->qflag) { |
7d8abfcb | 875 | goto out; |
230d4fa4 | 876 | } |
95533d5f | 877 | |
230d4fa4 CH |
878 | if (ctx->vflag) { |
879 | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); | |
880 | } | |
95533d5f CH |
881 | |
882 | /* Finally, report back -- -C gives a parsable format */ | |
883 | t2 = tsub(t2, ctx->t1); | |
230d4fa4 CH |
884 | print_report("read", &t2, ctx->offset, ctx->qiov.size, |
885 | ctx->qiov.size, 1, ctx->Cflag); | |
7d8abfcb | 886 | out: |
95533d5f CH |
887 | qemu_io_free(ctx->buf); |
888 | free(ctx); | |
95533d5f CH |
889 | } |
890 | ||
891 | static void | |
892 | aio_read_help(void) | |
893 | { | |
894 | printf( | |
895 | "\n" | |
896 | " asynchronously reads a range of bytes from the given offset\n" | |
897 | "\n" | |
898 | " Example:\n" | |
899 | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
900 | "\n" | |
901 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
902 | " standard output stream (with -v option) for subsequent inspection.\n" | |
903 | " The read is performed asynchronously and should the aio_flush command \n" | |
904 | " should be used to ensure all outstanding aio requests have been completed\n" | |
905 | " -C, -- report statistics in a machine parsable format\n" | |
906 | " -P, -- use a pattern to verify read data\n" | |
907 | " -v, -- dump buffer to standard output\n" | |
908 | " -q, -- quite mode, do not show I/O statistics\n" | |
909 | "\n"); | |
910 | } | |
911 | ||
22a2bdcb BS |
912 | static int aio_read_f(int argc, char **argv); |
913 | ||
914 | static const cmdinfo_t aio_read_cmd = { | |
915 | .name = "aio_read", | |
916 | .cfunc = aio_read_f, | |
917 | .argmin = 2, | |
918 | .argmax = -1, | |
919 | .args = "[-Cqv] [-P pattern ] off len [len..]", | |
920 | .oneline = "asynchronously reads a number of bytes", | |
921 | .help = aio_read_help, | |
922 | }; | |
923 | ||
95533d5f CH |
924 | static int |
925 | aio_read_f(int argc, char **argv) | |
926 | { | |
cf57298a | 927 | int nr_iov, c; |
95533d5f CH |
928 | struct aio_ctx *ctx = calloc(1, sizeof(struct aio_ctx)); |
929 | BlockDriverAIOCB *acb; | |
930 | ||
95533d5f CH |
931 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
932 | switch (c) { | |
933 | case 'C': | |
934 | ctx->Cflag = 1; | |
935 | break; | |
936 | case 'P': | |
937 | ctx->Pflag = 1; | |
cf070d7e CH |
938 | ctx->pattern = parse_pattern(optarg); |
939 | if (ctx->pattern < 0) | |
940 | return 0; | |
95533d5f CH |
941 | break; |
942 | case 'q': | |
943 | ctx->qflag = 1; | |
944 | break; | |
945 | case 'v': | |
946 | ctx->vflag = 1; | |
947 | break; | |
948 | default: | |
7d8abfcb | 949 | free(ctx); |
95533d5f CH |
950 | return command_usage(&aio_read_cmd); |
951 | } | |
952 | } | |
953 | ||
7d8abfcb KW |
954 | if (optind > argc - 2) { |
955 | free(ctx); | |
95533d5f | 956 | return command_usage(&aio_read_cmd); |
7d8abfcb | 957 | } |
95533d5f CH |
958 | |
959 | ctx->offset = cvtnum(argv[optind]); | |
960 | if (ctx->offset < 0) { | |
961 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
7d8abfcb | 962 | free(ctx); |
95533d5f CH |
963 | return 0; |
964 | } | |
965 | optind++; | |
966 | ||
967 | if (ctx->offset & 0x1ff) { | |
968 | printf("offset %lld is not sector aligned\n", | |
969 | (long long)ctx->offset); | |
7d8abfcb | 970 | free(ctx); |
95533d5f CH |
971 | return 0; |
972 | } | |
973 | ||
95533d5f | 974 | nr_iov = argc - optind; |
cf57298a | 975 | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, 0xab); |
95533d5f CH |
976 | |
977 | gettimeofday(&ctx->t1, NULL); | |
978 | acb = bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov, | |
979 | ctx->qiov.size >> 9, aio_read_done, ctx); | |
7d8abfcb KW |
980 | if (!acb) { |
981 | free(ctx->buf); | |
982 | free(ctx); | |
95533d5f | 983 | return -EIO; |
7d8abfcb | 984 | } |
95533d5f CH |
985 | |
986 | return 0; | |
987 | } | |
988 | ||
95533d5f CH |
989 | static void |
990 | aio_write_help(void) | |
991 | { | |
992 | printf( | |
993 | "\n" | |
994 | " asynchronously writes a range of bytes from the given offset source \n" | |
995 | " from multiple buffers\n" | |
996 | "\n" | |
997 | " Example:\n" | |
998 | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" | |
999 | "\n" | |
1000 | " Writes into a segment of the currently open file, using a buffer\n" | |
1001 | " filled with a set pattern (0xcdcdcdcd).\n" | |
1002 | " The write is performed asynchronously and should the aio_flush command \n" | |
1003 | " should be used to ensure all outstanding aio requests have been completed\n" | |
1004 | " -P, -- use different pattern to fill file\n" | |
1005 | " -C, -- report statistics in a machine parsable format\n" | |
1006 | " -q, -- quite mode, do not show I/O statistics\n" | |
1007 | "\n"); | |
1008 | } | |
1009 | ||
22a2bdcb BS |
1010 | static int aio_write_f(int argc, char **argv); |
1011 | ||
1012 | static const cmdinfo_t aio_write_cmd = { | |
1013 | .name = "aio_write", | |
1014 | .cfunc = aio_write_f, | |
1015 | .argmin = 2, | |
1016 | .argmax = -1, | |
1017 | .args = "[-Cq] [-P pattern ] off len [len..]", | |
1018 | .oneline = "asynchronously writes a number of bytes", | |
1019 | .help = aio_write_help, | |
1020 | }; | |
95533d5f CH |
1021 | |
1022 | static int | |
1023 | aio_write_f(int argc, char **argv) | |
1024 | { | |
cf57298a | 1025 | int nr_iov, c; |
95533d5f CH |
1026 | int pattern = 0xcd; |
1027 | struct aio_ctx *ctx = calloc(1, sizeof(struct aio_ctx)); | |
1028 | BlockDriverAIOCB *acb; | |
1029 | ||
1030 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { | |
1031 | switch (c) { | |
1032 | case 'C': | |
1033 | ctx->Cflag = 1; | |
1034 | break; | |
1035 | case 'q': | |
1036 | ctx->qflag = 1; | |
1037 | break; | |
1038 | case 'P': | |
cf070d7e CH |
1039 | pattern = parse_pattern(optarg); |
1040 | if (pattern < 0) | |
1041 | return 0; | |
95533d5f CH |
1042 | break; |
1043 | default: | |
7d8abfcb | 1044 | free(ctx); |
95533d5f CH |
1045 | return command_usage(&aio_write_cmd); |
1046 | } | |
1047 | } | |
1048 | ||
7d8abfcb KW |
1049 | if (optind > argc - 2) { |
1050 | free(ctx); | |
95533d5f | 1051 | return command_usage(&aio_write_cmd); |
7d8abfcb | 1052 | } |
95533d5f CH |
1053 | |
1054 | ctx->offset = cvtnum(argv[optind]); | |
1055 | if (ctx->offset < 0) { | |
1056 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
7d8abfcb | 1057 | free(ctx); |
95533d5f CH |
1058 | return 0; |
1059 | } | |
1060 | optind++; | |
1061 | ||
1062 | if (ctx->offset & 0x1ff) { | |
1063 | printf("offset %lld is not sector aligned\n", | |
1064 | (long long)ctx->offset); | |
7d8abfcb | 1065 | free(ctx); |
95533d5f CH |
1066 | return 0; |
1067 | } | |
1068 | ||
95533d5f | 1069 | nr_iov = argc - optind; |
cf57298a | 1070 | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, pattern); |
95533d5f CH |
1071 | |
1072 | gettimeofday(&ctx->t1, NULL); | |
1073 | acb = bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov, | |
1074 | ctx->qiov.size >> 9, aio_write_done, ctx); | |
7d8abfcb KW |
1075 | if (!acb) { |
1076 | free(ctx->buf); | |
1077 | free(ctx); | |
95533d5f | 1078 | return -EIO; |
7d8abfcb | 1079 | } |
95533d5f CH |
1080 | |
1081 | return 0; | |
1082 | } | |
1083 | ||
95533d5f CH |
1084 | static int |
1085 | aio_flush_f(int argc, char **argv) | |
1086 | { | |
1087 | qemu_aio_flush(); | |
1088 | return 0; | |
1089 | } | |
1090 | ||
1091 | static const cmdinfo_t aio_flush_cmd = { | |
1092 | .name = "aio_flush", | |
1093 | .cfunc = aio_flush_f, | |
1094 | .oneline = "completes all outstanding aio requets" | |
1095 | }; | |
1096 | ||
e3aff4f6 AL |
1097 | static int |
1098 | flush_f(int argc, char **argv) | |
1099 | { | |
1100 | bdrv_flush(bs); | |
1101 | return 0; | |
1102 | } | |
1103 | ||
1104 | static const cmdinfo_t flush_cmd = { | |
1105 | .name = "flush", | |
1106 | .altname = "f", | |
1107 | .cfunc = flush_f, | |
1108 | .oneline = "flush all in-core file state to disk", | |
1109 | }; | |
1110 | ||
1111 | static int | |
1112 | truncate_f(int argc, char **argv) | |
1113 | { | |
1114 | int64_t offset; | |
1115 | int ret; | |
1116 | ||
1117 | offset = cvtnum(argv[1]); | |
1118 | if (offset < 0) { | |
1119 | printf("non-numeric truncate argument -- %s\n", argv[1]); | |
1120 | return 0; | |
1121 | } | |
1122 | ||
1123 | ret = bdrv_truncate(bs, offset); | |
1124 | if (ret < 0) { | |
1125 | printf("truncate: %s", strerror(ret)); | |
1126 | return 0; | |
1127 | } | |
1128 | ||
1129 | return 0; | |
1130 | } | |
1131 | ||
1132 | static const cmdinfo_t truncate_cmd = { | |
1133 | .name = "truncate", | |
1134 | .altname = "t", | |
1135 | .cfunc = truncate_f, | |
1136 | .argmin = 1, | |
1137 | .argmax = 1, | |
1138 | .args = "off", | |
1139 | .oneline = "truncates the current file at the given offset", | |
1140 | }; | |
1141 | ||
1142 | static int | |
1143 | length_f(int argc, char **argv) | |
1144 | { | |
1145 | int64_t size; | |
1146 | char s1[64]; | |
1147 | ||
1148 | size = bdrv_getlength(bs); | |
1149 | if (size < 0) { | |
1150 | printf("getlength: %s", strerror(size)); | |
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | cvtstr(size, s1, sizeof(s1)); | |
1155 | printf("%s\n", s1); | |
1156 | return 0; | |
1157 | } | |
1158 | ||
1159 | ||
1160 | static const cmdinfo_t length_cmd = { | |
1161 | .name = "length", | |
1162 | .altname = "l", | |
1163 | .cfunc = length_f, | |
1164 | .oneline = "gets the length of the current file", | |
1165 | }; | |
1166 | ||
1167 | ||
1168 | static int | |
1169 | info_f(int argc, char **argv) | |
1170 | { | |
1171 | BlockDriverInfo bdi; | |
1172 | char s1[64], s2[64]; | |
1173 | int ret; | |
1174 | ||
1175 | if (bs->drv && bs->drv->format_name) | |
1176 | printf("format name: %s\n", bs->drv->format_name); | |
1177 | if (bs->drv && bs->drv->protocol_name) | |
1178 | printf("format name: %s\n", bs->drv->protocol_name); | |
1179 | ||
1180 | ret = bdrv_get_info(bs, &bdi); | |
1181 | if (ret) | |
1182 | return 0; | |
1183 | ||
1184 | cvtstr(bdi.cluster_size, s1, sizeof(s1)); | |
1185 | cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); | |
1186 | ||
1187 | printf("cluster size: %s\n", s1); | |
1188 | printf("vm state offset: %s\n", s2); | |
1189 | ||
1190 | return 0; | |
1191 | } | |
1192 | ||
1193 | ||
1194 | ||
1195 | static const cmdinfo_t info_cmd = { | |
1196 | .name = "info", | |
1197 | .altname = "i", | |
1198 | .cfunc = info_f, | |
1199 | .oneline = "prints information about the current file", | |
1200 | }; | |
1201 | ||
1202 | static int | |
1203 | alloc_f(int argc, char **argv) | |
1204 | { | |
1205 | int64_t offset; | |
a7824a88 | 1206 | int nb_sectors, remaining; |
e3aff4f6 | 1207 | char s1[64]; |
a7824a88 | 1208 | int num, sum_alloc; |
e3aff4f6 AL |
1209 | int ret; |
1210 | ||
1211 | offset = cvtnum(argv[1]); | |
1212 | if (offset & 0x1ff) { | |
1213 | printf("offset %lld is not sector aligned\n", | |
1214 | (long long)offset); | |
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | if (argc == 3) | |
1219 | nb_sectors = cvtnum(argv[2]); | |
1220 | else | |
1221 | nb_sectors = 1; | |
1222 | ||
a7824a88 KW |
1223 | remaining = nb_sectors; |
1224 | sum_alloc = 0; | |
1225 | while (remaining) { | |
1226 | ret = bdrv_is_allocated(bs, offset >> 9, nb_sectors, &num); | |
1227 | remaining -= num; | |
1228 | if (ret) { | |
1229 | sum_alloc += num; | |
1230 | } | |
1231 | } | |
e3aff4f6 AL |
1232 | |
1233 | cvtstr(offset, s1, sizeof(s1)); | |
1234 | ||
1235 | if (nb_sectors == 1) | |
a7824a88 | 1236 | printf("sector allocated at offset %s\n", s1); |
e3aff4f6 | 1237 | else |
a7824a88 KW |
1238 | printf("%d/%d sectors allocated at offset %s\n", |
1239 | sum_alloc, nb_sectors, s1); | |
e3aff4f6 AL |
1240 | return 0; |
1241 | } | |
1242 | ||
1243 | static const cmdinfo_t alloc_cmd = { | |
1244 | .name = "alloc", | |
1245 | .altname = "a", | |
1246 | .argmin = 1, | |
1247 | .argmax = 2, | |
1248 | .cfunc = alloc_f, | |
1249 | .args = "off [sectors]", | |
1250 | .oneline = "checks if a sector is present in the file", | |
1251 | }; | |
1252 | ||
1253 | static int | |
1254 | close_f(int argc, char **argv) | |
1255 | { | |
1256 | bdrv_close(bs); | |
1257 | bs = NULL; | |
1258 | return 0; | |
1259 | } | |
1260 | ||
1261 | static const cmdinfo_t close_cmd = { | |
1262 | .name = "close", | |
1263 | .altname = "c", | |
1264 | .cfunc = close_f, | |
1265 | .oneline = "close the current open file", | |
1266 | }; | |
1267 | ||
9c4bab26 | 1268 | static int openfile(char *name, int flags, int growable) |
e3aff4f6 AL |
1269 | { |
1270 | if (bs) { | |
1271 | fprintf(stderr, "file open already, try 'help close'\n"); | |
1272 | return 1; | |
1273 | } | |
1274 | ||
1275 | bs = bdrv_new("hda"); | |
1276 | if (!bs) | |
1277 | return 1; | |
1278 | ||
1db6947d CH |
1279 | if (growable) { |
1280 | flags |= BDRV_O_FILE; | |
1281 | } | |
1282 | ||
e3aff4f6 AL |
1283 | if (bdrv_open(bs, name, flags) == -1) { |
1284 | fprintf(stderr, "%s: can't open device %s\n", progname, name); | |
1285 | bs = NULL; | |
1286 | return 1; | |
1287 | } | |
1288 | ||
9c4bab26 | 1289 | if (growable) { |
9c4bab26 CH |
1290 | bs->growable = 1; |
1291 | } | |
e3aff4f6 AL |
1292 | return 0; |
1293 | } | |
1294 | ||
1295 | static void | |
1296 | open_help(void) | |
1297 | { | |
1298 | printf( | |
1299 | "\n" | |
1300 | " opens a new file in the requested mode\n" | |
1301 | "\n" | |
1302 | " Example:\n" | |
1303 | " 'open -Cn /tmp/data' - creates/opens data file read-write and uncached\n" | |
1304 | "\n" | |
1305 | " Opens a file for subsequent use by all of the other qemu-io commands.\n" | |
1306 | " -C, -- create new file if it doesn't exist\n" | |
1307 | " -r, -- open file read-only\n" | |
1308 | " -s, -- use snapshot file\n" | |
1309 | " -n, -- disable host cache\n" | |
9c4bab26 | 1310 | " -g, -- allow file to grow (only applies to protocols)" |
e3aff4f6 AL |
1311 | "\n"); |
1312 | } | |
1313 | ||
22a2bdcb BS |
1314 | static int open_f(int argc, char **argv); |
1315 | ||
1316 | static const cmdinfo_t open_cmd = { | |
1317 | .name = "open", | |
1318 | .altname = "o", | |
1319 | .cfunc = open_f, | |
1320 | .argmin = 1, | |
1321 | .argmax = -1, | |
1322 | .flags = CMD_NOFILE_OK, | |
1323 | .args = "[-Crsn] [path]", | |
1324 | .oneline = "open the file specified by path", | |
1325 | .help = open_help, | |
1326 | }; | |
e3aff4f6 AL |
1327 | |
1328 | static int | |
1329 | open_f(int argc, char **argv) | |
1330 | { | |
1331 | int flags = 0; | |
1332 | int readonly = 0; | |
9c4bab26 | 1333 | int growable = 0; |
e3aff4f6 AL |
1334 | int c; |
1335 | ||
9c4bab26 | 1336 | while ((c = getopt(argc, argv, "snCrg")) != EOF) { |
e3aff4f6 AL |
1337 | switch (c) { |
1338 | case 's': | |
1339 | flags |= BDRV_O_SNAPSHOT; | |
1340 | break; | |
1341 | case 'n': | |
1342 | flags |= BDRV_O_NOCACHE; | |
1343 | break; | |
1344 | case 'C': | |
1345 | flags |= BDRV_O_CREAT; | |
1346 | break; | |
1347 | case 'r': | |
1348 | readonly = 1; | |
1349 | break; | |
9c4bab26 CH |
1350 | case 'g': |
1351 | growable = 1; | |
1352 | break; | |
e3aff4f6 AL |
1353 | default: |
1354 | return command_usage(&open_cmd); | |
1355 | } | |
1356 | } | |
1357 | ||
1358 | if (readonly) | |
1359 | flags |= BDRV_O_RDONLY; | |
1360 | else | |
1361 | flags |= BDRV_O_RDWR; | |
1362 | ||
1363 | if (optind != argc - 1) | |
1364 | return command_usage(&open_cmd); | |
1365 | ||
9c4bab26 | 1366 | return openfile(argv[optind], flags, growable); |
e3aff4f6 AL |
1367 | } |
1368 | ||
e3aff4f6 AL |
1369 | static int |
1370 | init_args_command( | |
1371 | int index) | |
1372 | { | |
1373 | /* only one device allowed so far */ | |
1374 | if (index >= 1) | |
1375 | return 0; | |
1376 | return ++index; | |
1377 | } | |
1378 | ||
1379 | static int | |
1380 | init_check_command( | |
1381 | const cmdinfo_t *ct) | |
1382 | { | |
1383 | if (ct->flags & CMD_FLAG_GLOBAL) | |
1384 | return 1; | |
1385 | if (!(ct->flags & CMD_NOFILE_OK) && !bs) { | |
1386 | fprintf(stderr, "no file open, try 'help open'\n"); | |
1387 | return 0; | |
1388 | } | |
1389 | return 1; | |
1390 | } | |
1391 | ||
1392 | static void usage(const char *name) | |
1393 | { | |
1394 | printf( | |
1395 | "Usage: %s [-h] [-V] [-Crsnm] [-c cmd] ... [file]\n" | |
84844a20 | 1396 | "QEMU Disk exerciser\n" |
e3aff4f6 AL |
1397 | "\n" |
1398 | " -C, --create create new file if it doesn't exist\n" | |
1399 | " -c, --cmd command to execute\n" | |
1400 | " -r, --read-only export read-only\n" | |
1401 | " -s, --snapshot use snapshot file\n" | |
1402 | " -n, --nocache disable host cache\n" | |
1db6947d | 1403 | " -g, --growable allow file to grow (only applies to protocols)\n" |
e3aff4f6 | 1404 | " -m, --misalign misalign allocations for O_DIRECT\n" |
5c6c3a6c | 1405 | " -k, --native-aio use kernel AIO implementation (on Linux only)\n" |
e3aff4f6 AL |
1406 | " -h, --help display this help and exit\n" |
1407 | " -V, --version output version information and exit\n" | |
1408 | "\n", | |
1409 | name); | |
1410 | } | |
1411 | ||
1412 | ||
1413 | int main(int argc, char **argv) | |
1414 | { | |
1415 | int readonly = 0; | |
9c4bab26 | 1416 | int growable = 0; |
5c6c3a6c | 1417 | const char *sopt = "hVc:Crsnmgk"; |
b32bb952 | 1418 | const struct option lopt[] = { |
660f11be BS |
1419 | { "help", 0, NULL, 'h' }, |
1420 | { "version", 0, NULL, 'V' }, | |
1421 | { "offset", 1, NULL, 'o' }, | |
1422 | { "cmd", 1, NULL, 'c' }, | |
1423 | { "create", 0, NULL, 'C' }, | |
1424 | { "read-only", 0, NULL, 'r' }, | |
1425 | { "snapshot", 0, NULL, 's' }, | |
1426 | { "nocache", 0, NULL, 'n' }, | |
1427 | { "misalign", 0, NULL, 'm' }, | |
1428 | { "growable", 0, NULL, 'g' }, | |
5c6c3a6c | 1429 | { "native-aio", 0, NULL, 'k' }, |
660f11be | 1430 | { NULL, 0, NULL, 0 } |
e3aff4f6 AL |
1431 | }; |
1432 | int c; | |
1433 | int opt_index = 0; | |
1434 | int flags = 0; | |
1435 | ||
1436 | progname = basename(argv[0]); | |
1437 | ||
1438 | while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) { | |
1439 | switch (c) { | |
1440 | case 's': | |
1441 | flags |= BDRV_O_SNAPSHOT; | |
1442 | break; | |
1443 | case 'n': | |
1444 | flags |= BDRV_O_NOCACHE; | |
1445 | break; | |
1446 | case 'c': | |
1447 | add_user_command(optarg); | |
1448 | break; | |
1449 | case 'C': | |
1450 | flags |= BDRV_O_CREAT; | |
1451 | break; | |
1452 | case 'r': | |
1453 | readonly = 1; | |
1454 | break; | |
1455 | case 'm': | |
1456 | misalign = 1; | |
1457 | break; | |
9c4bab26 CH |
1458 | case 'g': |
1459 | growable = 1; | |
1460 | break; | |
5c6c3a6c CH |
1461 | case 'k': |
1462 | flags |= BDRV_O_NATIVE_AIO; | |
1463 | break; | |
e3aff4f6 AL |
1464 | case 'V': |
1465 | printf("%s version %s\n", progname, VERSION); | |
1466 | exit(0); | |
1467 | case 'h': | |
1468 | usage(progname); | |
1469 | exit(0); | |
1470 | default: | |
1471 | usage(progname); | |
1472 | exit(1); | |
1473 | } | |
1474 | } | |
1475 | ||
1476 | if ((argc - optind) > 1) { | |
1477 | usage(progname); | |
1478 | exit(1); | |
1479 | } | |
1480 | ||
1481 | bdrv_init(); | |
1482 | ||
1483 | /* initialize commands */ | |
1484 | quit_init(); | |
1485 | help_init(); | |
1486 | add_command(&open_cmd); | |
1487 | add_command(&close_cmd); | |
1488 | add_command(&read_cmd); | |
1489 | add_command(&readv_cmd); | |
1490 | add_command(&write_cmd); | |
1491 | add_command(&writev_cmd); | |
95533d5f CH |
1492 | add_command(&aio_read_cmd); |
1493 | add_command(&aio_write_cmd); | |
1494 | add_command(&aio_flush_cmd); | |
e3aff4f6 AL |
1495 | add_command(&flush_cmd); |
1496 | add_command(&truncate_cmd); | |
1497 | add_command(&length_cmd); | |
1498 | add_command(&info_cmd); | |
1499 | add_command(&alloc_cmd); | |
1500 | ||
1501 | add_args_command(init_args_command); | |
1502 | add_check_command(init_check_command); | |
1503 | ||
1504 | /* open the device */ | |
1505 | if (readonly) | |
1506 | flags |= BDRV_O_RDONLY; | |
1507 | else | |
1508 | flags |= BDRV_O_RDWR; | |
1509 | ||
1510 | if ((argc - optind) == 1) | |
9c4bab26 | 1511 | openfile(argv[optind], flags, growable); |
e3aff4f6 AL |
1512 | command_loop(); |
1513 | ||
95533d5f CH |
1514 | /* |
1515 | * Make sure all outstanding requests get flushed the program exits. | |
1516 | */ | |
1517 | qemu_aio_flush(); | |
1518 | ||
e3aff4f6 AL |
1519 | if (bs) |
1520 | bdrv_close(bs); | |
1521 | return 0; | |
1522 | } |