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Commit | Line | Data |
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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 | */ | |
10 | #include <sys/types.h> | |
11 | #include <stdarg.h> | |
12 | #include <stdio.h> | |
13 | #include <getopt.h> | |
14 | ||
15 | #include "qemu-common.h" | |
16 | #include "block_int.h" | |
17 | #include "cmd.h" | |
18 | ||
19 | #define VERSION "0.0.1" | |
20 | ||
21 | #define CMD_NOFILE_OK 0x01 | |
22 | ||
23 | char *progname; | |
24 | static BlockDriverState *bs; | |
25 | ||
26 | static int misalign; | |
27 | ||
28 | /* | |
29 | * Memory allocation helpers. | |
30 | * | |
31 | * Make sure memory is aligned by default, or purposefully misaligned if | |
32 | * that is specified on the command line. | |
33 | */ | |
34 | ||
35 | #define MISALIGN_OFFSET 16 | |
36 | static void *qemu_io_alloc(size_t len, int pattern) | |
37 | { | |
38 | void *buf; | |
39 | ||
40 | if (misalign) | |
41 | len += MISALIGN_OFFSET; | |
42 | buf = qemu_memalign(512, len); | |
43 | memset(buf, pattern, len); | |
44 | if (misalign) | |
45 | buf += MISALIGN_OFFSET; | |
46 | return buf; | |
47 | } | |
48 | ||
49 | static void qemu_io_free(void *p) | |
50 | { | |
51 | if (misalign) | |
52 | p -= MISALIGN_OFFSET; | |
53 | qemu_vfree(p); | |
54 | } | |
55 | ||
56 | static void | |
57 | dump_buffer(char *buffer, int64_t offset, int len) | |
58 | { | |
59 | int i, j; | |
60 | char *p; | |
61 | ||
62 | for (i = 0, p = buffer; i < len; i += 16) { | |
63 | char *s = p; | |
64 | ||
65 | printf("%08llx: ", (unsigned long long)offset + i); | |
66 | for (j = 0; j < 16 && i + j < len; j++, p++) | |
67 | printf("%02x ", *p); | |
68 | printf(" "); | |
69 | for (j = 0; j < 16 && i + j < len; j++, s++) { | |
70 | if (isalnum((int)*s)) | |
71 | printf("%c", *s); | |
72 | else | |
73 | printf("."); | |
74 | } | |
75 | printf("\n"); | |
76 | } | |
77 | } | |
78 | ||
79 | static void | |
80 | print_report(const char *op, struct timeval *t, int64_t offset, | |
81 | int count, int total, int cnt, int Cflag) | |
82 | { | |
83 | char s1[64], s2[64], ts[64]; | |
84 | ||
85 | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); | |
86 | if (!Cflag) { | |
87 | cvtstr((double)total, s1, sizeof(s1)); | |
88 | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); | |
89 | printf("%s %d/%d bytes at offset %lld\n", | |
90 | op, total, count, (long long)offset); | |
91 | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", | |
92 | s1, cnt, ts, s2, tdiv((double)cnt, *t)); | |
93 | } else {/* bytes,ops,time,bytes/sec,ops/sec */ | |
94 | printf("%d,%d,%s,%.3f,%.3f\n", | |
95 | total, cnt, ts, | |
96 | tdiv((double)total, *t), | |
97 | tdiv((double)cnt, *t)); | |
98 | } | |
99 | } | |
100 | ||
101 | static int do_read(char *buf, int64_t offset, int count, int *total) | |
102 | { | |
103 | int ret; | |
104 | ||
105 | ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9); | |
106 | if (ret < 0) | |
107 | return ret; | |
108 | *total = count; | |
109 | return 1; | |
110 | } | |
111 | ||
112 | static int do_write(char *buf, int64_t offset, int count, int *total) | |
113 | { | |
114 | int ret; | |
115 | ||
116 | ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9); | |
117 | if (ret < 0) | |
118 | return ret; | |
119 | *total = count; | |
120 | return 1; | |
121 | } | |
122 | ||
123 | static int do_pread(char *buf, int64_t offset, int count, int *total) | |
124 | { | |
125 | *total = bdrv_pread(bs, offset, (uint8_t *)buf, count); | |
126 | if (*total < 0) | |
127 | return *total; | |
128 | return 1; | |
129 | } | |
130 | ||
131 | static int do_pwrite(char *buf, int64_t offset, int count, int *total) | |
132 | { | |
133 | *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count); | |
134 | if (*total < 0) | |
135 | return *total; | |
136 | return 1; | |
137 | } | |
138 | ||
139 | #define NOT_DONE 0x7fffffff | |
140 | static void aio_rw_done(void *opaque, int ret) | |
141 | { | |
142 | *(int *)opaque = ret; | |
143 | } | |
144 | ||
145 | static int do_aio_readv(QEMUIOVector *qiov, int64_t offset, int *total) | |
146 | { | |
147 | BlockDriverAIOCB *acb; | |
148 | int async_ret = NOT_DONE; | |
149 | ||
150 | acb = bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9, | |
151 | aio_rw_done, &async_ret); | |
152 | if (!acb) | |
153 | return -EIO; | |
154 | ||
155 | while (async_ret == NOT_DONE) | |
156 | qemu_aio_wait(); | |
157 | ||
158 | *total = qiov->size; | |
159 | return async_ret < 0 ? async_ret : 1; | |
160 | } | |
161 | ||
162 | static int do_aio_writev(QEMUIOVector *qiov, int64_t offset, int *total) | |
163 | { | |
164 | BlockDriverAIOCB *acb; | |
165 | int async_ret = NOT_DONE; | |
166 | ||
167 | acb = bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9, | |
168 | aio_rw_done, &async_ret); | |
169 | if (!acb) | |
170 | return -EIO; | |
171 | ||
172 | while (async_ret == NOT_DONE) | |
173 | qemu_aio_wait(); | |
174 | ||
7e9bbc9f | 175 | *total = qiov->size; |
e3aff4f6 AL |
176 | return async_ret < 0 ? async_ret : 1; |
177 | } | |
178 | ||
179 | ||
180 | static const cmdinfo_t read_cmd; | |
181 | ||
182 | static void | |
183 | read_help(void) | |
184 | { | |
185 | printf( | |
186 | "\n" | |
187 | " reads a range of bytes from the given offset\n" | |
188 | "\n" | |
189 | " Example:\n" | |
190 | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" | |
191 | "\n" | |
192 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
193 | " standard output stream (with -v option) for subsequent inspection.\n" | |
d9654a58 KW |
194 | " -C, -- report statistics in a machine parsable format\n" |
195 | " -l, -- length for pattern verification (only with -P)\n" | |
e3aff4f6 | 196 | " -p, -- use bdrv_pread to read the file\n" |
c48101ae | 197 | " -P, -- use a pattern to verify read data\n" |
e3aff4f6 | 198 | " -q, -- quite mode, do not show I/O statistics\n" |
d9654a58 KW |
199 | " -s, -- start offset for pattern verification (only with -P)\n" |
200 | " -v, -- dump buffer to standard output\n" | |
e3aff4f6 AL |
201 | "\n"); |
202 | } | |
203 | ||
204 | static int | |
205 | read_f(int argc, char **argv) | |
206 | { | |
207 | struct timeval t1, t2; | |
208 | int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; | |
d9654a58 | 209 | int Pflag = 0, sflag = 0, lflag = 0; |
e3aff4f6 AL |
210 | int c, cnt; |
211 | char *buf; | |
212 | int64_t offset; | |
213 | int count, total; | |
d9654a58 | 214 | int pattern = 0, pattern_offset = 0, pattern_count = 0; |
e3aff4f6 | 215 | |
d9654a58 | 216 | while ((c = getopt(argc, argv, "Cl:pP:qs:v")) != EOF) { |
e3aff4f6 AL |
217 | switch (c) { |
218 | case 'C': | |
219 | Cflag = 1; | |
220 | break; | |
d9654a58 KW |
221 | case 'l': |
222 | lflag = 1; | |
223 | pattern_count = cvtnum(optarg); | |
224 | if (pattern_count < 0) { | |
225 | printf("non-numeric length argument -- %s\n", optarg); | |
226 | return 0; | |
227 | } | |
228 | break; | |
e3aff4f6 AL |
229 | case 'p': |
230 | pflag = 1; | |
231 | break; | |
c48101ae AL |
232 | case 'P': |
233 | Pflag = 1; | |
234 | pattern = atoi(optarg); | |
235 | break; | |
e3aff4f6 AL |
236 | case 'q': |
237 | qflag = 1; | |
238 | break; | |
d9654a58 KW |
239 | case 's': |
240 | sflag = 1; | |
241 | pattern_offset = cvtnum(optarg); | |
242 | if (pattern_offset < 0) { | |
243 | printf("non-numeric length argument -- %s\n", optarg); | |
244 | return 0; | |
245 | } | |
246 | break; | |
e3aff4f6 AL |
247 | case 'v': |
248 | vflag = 1; | |
249 | break; | |
250 | default: | |
251 | return command_usage(&read_cmd); | |
252 | } | |
253 | } | |
254 | ||
255 | if (optind != argc - 2) | |
256 | return command_usage(&read_cmd); | |
257 | ||
258 | offset = cvtnum(argv[optind]); | |
259 | if (offset < 0) { | |
260 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
261 | return 0; | |
262 | } | |
263 | ||
264 | optind++; | |
265 | count = cvtnum(argv[optind]); | |
266 | if (count < 0) { | |
267 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
268 | return 0; | |
269 | } | |
270 | ||
d9654a58 KW |
271 | if (!Pflag && (lflag || sflag)) { |
272 | return command_usage(&read_cmd); | |
273 | } | |
274 | ||
275 | if (!lflag) { | |
276 | pattern_count = count - pattern_offset; | |
277 | } | |
278 | ||
279 | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { | |
280 | printf("pattern verfication range exceeds end of read data\n"); | |
281 | return 0; | |
282 | } | |
283 | ||
e3aff4f6 AL |
284 | if (!pflag) |
285 | if (offset & 0x1ff) { | |
286 | printf("offset %lld is not sector aligned\n", | |
287 | (long long)offset); | |
288 | return 0; | |
289 | ||
290 | if (count & 0x1ff) { | |
291 | printf("count %d is not sector aligned\n", | |
292 | count); | |
293 | return 0; | |
294 | } | |
295 | } | |
296 | ||
297 | buf = qemu_io_alloc(count, 0xab); | |
298 | ||
299 | gettimeofday(&t1, NULL); | |
300 | if (pflag) | |
301 | cnt = do_pread(buf, offset, count, &total); | |
302 | else | |
303 | cnt = do_read(buf, offset, count, &total); | |
304 | gettimeofday(&t2, NULL); | |
305 | ||
306 | if (cnt < 0) { | |
307 | printf("read failed: %s\n", strerror(-cnt)); | |
308 | return 0; | |
309 | } | |
310 | ||
c48101ae | 311 | if (Pflag) { |
d9654a58 KW |
312 | void* cmp_buf = malloc(pattern_count); |
313 | memset(cmp_buf, pattern, pattern_count); | |
314 | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { | |
c48101ae AL |
315 | printf("Pattern verification failed at offset %lld, " |
316 | "%d bytes\n", | |
d9654a58 | 317 | (long long) offset + pattern_offset, pattern_count); |
c48101ae AL |
318 | } |
319 | free(cmp_buf); | |
320 | } | |
321 | ||
e3aff4f6 AL |
322 | if (qflag) |
323 | return 0; | |
324 | ||
325 | if (vflag) | |
326 | dump_buffer(buf, offset, count); | |
327 | ||
328 | /* Finally, report back -- -C gives a parsable format */ | |
329 | t2 = tsub(t2, t1); | |
330 | print_report("read", &t2, offset, count, total, cnt, Cflag); | |
331 | ||
332 | qemu_io_free(buf); | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
337 | static const cmdinfo_t read_cmd = { | |
338 | .name = "read", | |
339 | .altname = "r", | |
340 | .cfunc = read_f, | |
341 | .argmin = 2, | |
342 | .argmax = -1, | |
d9654a58 | 343 | .args = "[-aCpqv] [-P pattern [-s off] [-l len]] off len", |
e3aff4f6 AL |
344 | .oneline = "reads a number of bytes at a specified offset", |
345 | .help = read_help, | |
346 | }; | |
347 | ||
348 | static const cmdinfo_t readv_cmd; | |
349 | ||
350 | static void | |
351 | readv_help(void) | |
352 | { | |
353 | printf( | |
354 | "\n" | |
355 | " reads a range of bytes from the given offset into multiple buffers\n" | |
356 | "\n" | |
357 | " Example:\n" | |
358 | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" | |
359 | "\n" | |
360 | " Reads a segment of the currently open file, optionally dumping it to the\n" | |
361 | " standard output stream (with -v option) for subsequent inspection.\n" | |
362 | " Uses multiple iovec buffers if more than one byte range is specified.\n" | |
363 | " -C, -- report statistics in a machine parsable format\n" | |
c48101ae | 364 | " -P, -- use a pattern to verify read data\n" |
e3aff4f6 AL |
365 | " -v, -- dump buffer to standard output\n" |
366 | " -q, -- quite mode, do not show I/O statistics\n" | |
367 | "\n"); | |
368 | } | |
369 | ||
370 | static int | |
371 | readv_f(int argc, char **argv) | |
372 | { | |
373 | struct timeval t1, t2; | |
374 | int Cflag = 0, qflag = 0, vflag = 0; | |
375 | int c, cnt; | |
376 | char *buf, *p; | |
377 | int64_t offset; | |
378 | int count = 0, total; | |
379 | int nr_iov, i; | |
380 | QEMUIOVector qiov; | |
c48101ae AL |
381 | int pattern = 0; |
382 | int Pflag = 0; | |
e3aff4f6 | 383 | |
c48101ae | 384 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
e3aff4f6 AL |
385 | switch (c) { |
386 | case 'C': | |
387 | Cflag = 1; | |
388 | break; | |
c48101ae AL |
389 | case 'P': |
390 | Pflag = 1; | |
391 | pattern = atoi(optarg); | |
392 | break; | |
e3aff4f6 AL |
393 | case 'q': |
394 | qflag = 1; | |
395 | break; | |
396 | case 'v': | |
397 | vflag = 1; | |
398 | break; | |
399 | default: | |
400 | return command_usage(&readv_cmd); | |
401 | } | |
402 | } | |
403 | ||
404 | if (optind > argc - 2) | |
405 | return command_usage(&readv_cmd); | |
406 | ||
407 | ||
408 | offset = cvtnum(argv[optind]); | |
409 | if (offset < 0) { | |
410 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
411 | return 0; | |
412 | } | |
413 | optind++; | |
414 | ||
415 | if (offset & 0x1ff) { | |
416 | printf("offset %lld is not sector aligned\n", | |
417 | (long long)offset); | |
418 | return 0; | |
419 | } | |
420 | ||
421 | if (count & 0x1ff) { | |
422 | printf("count %d is not sector aligned\n", | |
423 | count); | |
424 | return 0; | |
425 | } | |
426 | ||
427 | for (i = optind; i < argc; i++) { | |
428 | size_t len; | |
429 | ||
430 | len = cvtnum(argv[i]); | |
431 | if (len < 0) { | |
432 | printf("non-numeric length argument -- %s\n", argv[i]); | |
433 | return 0; | |
434 | } | |
435 | count += len; | |
436 | } | |
437 | ||
438 | nr_iov = argc - optind; | |
439 | qemu_iovec_init(&qiov, nr_iov); | |
440 | buf = p = qemu_io_alloc(count, 0xab); | |
441 | for (i = 0; i < nr_iov; i++) { | |
442 | size_t len; | |
443 | ||
444 | len = cvtnum(argv[optind]); | |
445 | if (len < 0) { | |
446 | printf("non-numeric length argument -- %s\n", | |
447 | argv[optind]); | |
448 | return 0; | |
449 | } | |
450 | ||
451 | qemu_iovec_add(&qiov, p, len); | |
452 | p += len; | |
453 | optind++; | |
454 | } | |
455 | ||
456 | gettimeofday(&t1, NULL); | |
457 | cnt = do_aio_readv(&qiov, offset, &total); | |
458 | gettimeofday(&t2, NULL); | |
459 | ||
460 | if (cnt < 0) { | |
461 | printf("readv failed: %s\n", strerror(-cnt)); | |
462 | return 0; | |
463 | } | |
464 | ||
c48101ae AL |
465 | if (Pflag) { |
466 | void* cmp_buf = malloc(count); | |
467 | memset(cmp_buf, pattern, count); | |
468 | if (memcmp(buf, cmp_buf, count)) { | |
469 | printf("Pattern verification failed at offset %lld, " | |
470 | "%d bytes\n", | |
471 | (long long) offset, count); | |
472 | } | |
473 | free(cmp_buf); | |
474 | } | |
475 | ||
e3aff4f6 AL |
476 | if (qflag) |
477 | return 0; | |
478 | ||
479 | if (vflag) | |
480 | dump_buffer(buf, offset, qiov.size); | |
481 | ||
482 | /* Finally, report back -- -C gives a parsable format */ | |
483 | t2 = tsub(t2, t1); | |
484 | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); | |
485 | ||
486 | qemu_io_free(buf); | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
491 | static const cmdinfo_t readv_cmd = { | |
492 | .name = "readv", | |
493 | .cfunc = readv_f, | |
494 | .argmin = 2, | |
495 | .argmax = -1, | |
c48101ae | 496 | .args = "[-Cqv] [-P pattern ] off len [len..]", |
e3aff4f6 AL |
497 | .oneline = "reads a number of bytes at a specified offset", |
498 | .help = readv_help, | |
499 | }; | |
500 | ||
501 | static const cmdinfo_t write_cmd; | |
502 | ||
503 | static void | |
504 | write_help(void) | |
505 | { | |
506 | printf( | |
507 | "\n" | |
508 | " writes a range of bytes from the given offset\n" | |
509 | "\n" | |
510 | " Example:\n" | |
511 | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" | |
512 | "\n" | |
513 | " Writes into a segment of the currently open file, using a buffer\n" | |
514 | " filled with a set pattern (0xcdcdcdcd).\n" | |
515 | " -p, -- use bdrv_pwrite to write the file\n" | |
516 | " -P, -- use different pattern to fill file\n" | |
517 | " -C, -- report statistics in a machine parsable format\n" | |
518 | " -q, -- quite mode, do not show I/O statistics\n" | |
519 | "\n"); | |
520 | } | |
521 | ||
522 | static int | |
523 | write_f(int argc, char **argv) | |
524 | { | |
525 | struct timeval t1, t2; | |
526 | int Cflag = 0, pflag = 0, qflag = 0; | |
527 | int c, cnt; | |
528 | char *buf; | |
529 | int64_t offset; | |
530 | int count, total; | |
531 | int pattern = 0xcd; | |
532 | ||
533 | while ((c = getopt(argc, argv, "CpP:q")) != EOF) { | |
534 | switch (c) { | |
535 | case 'C': | |
536 | Cflag = 1; | |
537 | break; | |
538 | case 'p': | |
539 | pflag = 1; | |
540 | break; | |
541 | case 'P': | |
542 | pattern = atoi(optarg); | |
543 | break; | |
544 | case 'q': | |
545 | qflag = 1; | |
546 | break; | |
547 | default: | |
548 | return command_usage(&write_cmd); | |
549 | } | |
550 | } | |
551 | ||
552 | if (optind != argc - 2) | |
553 | return command_usage(&write_cmd); | |
554 | ||
555 | offset = cvtnum(argv[optind]); | |
556 | if (offset < 0) { | |
557 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
558 | return 0; | |
559 | } | |
560 | ||
561 | optind++; | |
562 | count = cvtnum(argv[optind]); | |
563 | if (count < 0) { | |
564 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
565 | return 0; | |
566 | } | |
567 | ||
568 | if (!pflag) { | |
569 | if (offset & 0x1ff) { | |
570 | printf("offset %lld is not sector aligned\n", | |
571 | (long long)offset); | |
572 | return 0; | |
573 | } | |
574 | ||
575 | if (count & 0x1ff) { | |
576 | printf("count %d is not sector aligned\n", | |
577 | count); | |
578 | return 0; | |
579 | } | |
580 | } | |
581 | ||
582 | buf = qemu_io_alloc(count, pattern); | |
583 | ||
584 | gettimeofday(&t1, NULL); | |
585 | if (pflag) | |
586 | cnt = do_pwrite(buf, offset, count, &total); | |
587 | else | |
588 | cnt = do_write(buf, offset, count, &total); | |
589 | gettimeofday(&t2, NULL); | |
590 | ||
591 | if (cnt < 0) { | |
592 | printf("write failed: %s\n", strerror(-cnt)); | |
593 | return 0; | |
594 | } | |
595 | ||
596 | if (qflag) | |
597 | return 0; | |
598 | ||
599 | /* Finally, report back -- -C gives a parsable format */ | |
600 | t2 = tsub(t2, t1); | |
601 | print_report("wrote", &t2, offset, count, total, cnt, Cflag); | |
602 | ||
603 | qemu_io_free(buf); | |
604 | ||
605 | return 0; | |
606 | } | |
607 | ||
608 | static const cmdinfo_t write_cmd = { | |
609 | .name = "write", | |
610 | .altname = "w", | |
611 | .cfunc = write_f, | |
612 | .argmin = 2, | |
613 | .argmax = -1, | |
614 | .args = "[-aCpq] [-P pattern ] off len", | |
615 | .oneline = "writes a number of bytes at a specified offset", | |
616 | .help = write_help, | |
617 | }; | |
618 | ||
619 | static const cmdinfo_t writev_cmd; | |
620 | ||
621 | static void | |
622 | writev_help(void) | |
623 | { | |
624 | printf( | |
625 | "\n" | |
626 | " writes a range of bytes from the given offset source from multiple buffers\n" | |
627 | "\n" | |
628 | " Example:\n" | |
629 | " 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" | |
630 | "\n" | |
631 | " Writes into a segment of the currently open file, using a buffer\n" | |
632 | " filled with a set pattern (0xcdcdcdcd).\n" | |
633 | " -P, -- use different pattern to fill file\n" | |
634 | " -C, -- report statistics in a machine parsable format\n" | |
635 | " -q, -- quite mode, do not show I/O statistics\n" | |
636 | "\n"); | |
637 | } | |
638 | ||
639 | static int | |
640 | writev_f(int argc, char **argv) | |
641 | { | |
642 | struct timeval t1, t2; | |
643 | int Cflag = 0, qflag = 0; | |
644 | int c, cnt; | |
645 | char *buf, *p; | |
646 | int64_t offset; | |
647 | int count = 0, total; | |
648 | int nr_iov, i; | |
649 | int pattern = 0xcd; | |
650 | QEMUIOVector qiov; | |
651 | ||
652 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { | |
653 | switch (c) { | |
654 | case 'C': | |
655 | Cflag = 1; | |
656 | break; | |
657 | case 'q': | |
658 | qflag = 1; | |
659 | break; | |
660 | case 'P': | |
661 | pattern = atoi(optarg); | |
662 | break; | |
663 | default: | |
664 | return command_usage(&writev_cmd); | |
665 | } | |
666 | } | |
667 | ||
668 | if (optind > argc - 2) | |
669 | return command_usage(&writev_cmd); | |
670 | ||
671 | offset = cvtnum(argv[optind]); | |
672 | if (offset < 0) { | |
673 | printf("non-numeric length argument -- %s\n", argv[optind]); | |
674 | return 0; | |
675 | } | |
676 | optind++; | |
677 | ||
678 | if (offset & 0x1ff) { | |
679 | printf("offset %lld is not sector aligned\n", | |
680 | (long long)offset); | |
681 | return 0; | |
682 | } | |
683 | ||
684 | if (count & 0x1ff) { | |
685 | printf("count %d is not sector aligned\n", | |
686 | count); | |
687 | return 0; | |
688 | } | |
689 | ||
690 | ||
691 | for (i = optind; i < argc; i++) { | |
692 | size_t len; | |
693 | ||
694 | len = cvtnum(argv[optind]); | |
695 | if (len < 0) { | |
696 | printf("non-numeric length argument -- %s\n", argv[i]); | |
697 | return 0; | |
698 | } | |
699 | count += len; | |
700 | } | |
701 | ||
702 | nr_iov = argc - optind; | |
703 | qemu_iovec_init(&qiov, nr_iov); | |
7e9bbc9f | 704 | buf = p = qemu_io_alloc(count, pattern); |
e3aff4f6 AL |
705 | for (i = 0; i < nr_iov; i++) { |
706 | size_t len; | |
707 | ||
708 | len = cvtnum(argv[optind]); | |
709 | if (len < 0) { | |
710 | printf("non-numeric length argument -- %s\n", | |
711 | argv[optind]); | |
712 | return 0; | |
713 | } | |
714 | ||
715 | qemu_iovec_add(&qiov, p, len); | |
716 | p += len; | |
717 | optind++; | |
718 | } | |
719 | ||
720 | gettimeofday(&t1, NULL); | |
721 | cnt = do_aio_writev(&qiov, offset, &total); | |
722 | gettimeofday(&t2, NULL); | |
723 | ||
724 | if (cnt < 0) { | |
725 | printf("writev failed: %s\n", strerror(-cnt)); | |
726 | return 0; | |
727 | } | |
728 | ||
729 | if (qflag) | |
730 | return 0; | |
731 | ||
732 | /* Finally, report back -- -C gives a parsable format */ | |
733 | t2 = tsub(t2, t1); | |
734 | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); | |
735 | ||
736 | qemu_io_free(buf); | |
737 | ||
738 | return 0; | |
739 | } | |
740 | ||
741 | static const cmdinfo_t writev_cmd = { | |
742 | .name = "writev", | |
743 | .cfunc = writev_f, | |
744 | .argmin = 2, | |
745 | .argmax = -1, | |
746 | .args = "[-Cq] [-P pattern ] off len [len..]", | |
747 | .oneline = "writes a number of bytes at a specified offset", | |
748 | .help = writev_help, | |
749 | }; | |
750 | ||
751 | static int | |
752 | flush_f(int argc, char **argv) | |
753 | { | |
754 | bdrv_flush(bs); | |
755 | return 0; | |
756 | } | |
757 | ||
758 | static const cmdinfo_t flush_cmd = { | |
759 | .name = "flush", | |
760 | .altname = "f", | |
761 | .cfunc = flush_f, | |
762 | .oneline = "flush all in-core file state to disk", | |
763 | }; | |
764 | ||
765 | static int | |
766 | truncate_f(int argc, char **argv) | |
767 | { | |
768 | int64_t offset; | |
769 | int ret; | |
770 | ||
771 | offset = cvtnum(argv[1]); | |
772 | if (offset < 0) { | |
773 | printf("non-numeric truncate argument -- %s\n", argv[1]); | |
774 | return 0; | |
775 | } | |
776 | ||
777 | ret = bdrv_truncate(bs, offset); | |
778 | if (ret < 0) { | |
779 | printf("truncate: %s", strerror(ret)); | |
780 | return 0; | |
781 | } | |
782 | ||
783 | return 0; | |
784 | } | |
785 | ||
786 | static const cmdinfo_t truncate_cmd = { | |
787 | .name = "truncate", | |
788 | .altname = "t", | |
789 | .cfunc = truncate_f, | |
790 | .argmin = 1, | |
791 | .argmax = 1, | |
792 | .args = "off", | |
793 | .oneline = "truncates the current file at the given offset", | |
794 | }; | |
795 | ||
796 | static int | |
797 | length_f(int argc, char **argv) | |
798 | { | |
799 | int64_t size; | |
800 | char s1[64]; | |
801 | ||
802 | size = bdrv_getlength(bs); | |
803 | if (size < 0) { | |
804 | printf("getlength: %s", strerror(size)); | |
805 | return 0; | |
806 | } | |
807 | ||
808 | cvtstr(size, s1, sizeof(s1)); | |
809 | printf("%s\n", s1); | |
810 | return 0; | |
811 | } | |
812 | ||
813 | ||
814 | static const cmdinfo_t length_cmd = { | |
815 | .name = "length", | |
816 | .altname = "l", | |
817 | .cfunc = length_f, | |
818 | .oneline = "gets the length of the current file", | |
819 | }; | |
820 | ||
821 | ||
822 | static int | |
823 | info_f(int argc, char **argv) | |
824 | { | |
825 | BlockDriverInfo bdi; | |
826 | char s1[64], s2[64]; | |
827 | int ret; | |
828 | ||
829 | if (bs->drv && bs->drv->format_name) | |
830 | printf("format name: %s\n", bs->drv->format_name); | |
831 | if (bs->drv && bs->drv->protocol_name) | |
832 | printf("format name: %s\n", bs->drv->protocol_name); | |
833 | ||
834 | ret = bdrv_get_info(bs, &bdi); | |
835 | if (ret) | |
836 | return 0; | |
837 | ||
838 | cvtstr(bdi.cluster_size, s1, sizeof(s1)); | |
839 | cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); | |
840 | ||
841 | printf("cluster size: %s\n", s1); | |
842 | printf("vm state offset: %s\n", s2); | |
843 | ||
844 | return 0; | |
845 | } | |
846 | ||
847 | ||
848 | ||
849 | static const cmdinfo_t info_cmd = { | |
850 | .name = "info", | |
851 | .altname = "i", | |
852 | .cfunc = info_f, | |
853 | .oneline = "prints information about the current file", | |
854 | }; | |
855 | ||
856 | static int | |
857 | alloc_f(int argc, char **argv) | |
858 | { | |
859 | int64_t offset; | |
860 | int nb_sectors; | |
861 | char s1[64]; | |
862 | int num; | |
863 | int ret; | |
838ab728 | 864 | const char *retstr; |
e3aff4f6 AL |
865 | |
866 | offset = cvtnum(argv[1]); | |
867 | if (offset & 0x1ff) { | |
868 | printf("offset %lld is not sector aligned\n", | |
869 | (long long)offset); | |
870 | return 0; | |
871 | } | |
872 | ||
873 | if (argc == 3) | |
874 | nb_sectors = cvtnum(argv[2]); | |
875 | else | |
876 | nb_sectors = 1; | |
877 | ||
878 | ret = bdrv_is_allocated(bs, offset >> 9, nb_sectors, &num); | |
e3aff4f6 AL |
879 | |
880 | cvtstr(offset, s1, sizeof(s1)); | |
881 | ||
838ab728 | 882 | retstr = ret ? "allocated" : "not allocated"; |
e3aff4f6 | 883 | if (nb_sectors == 1) |
838ab728 | 884 | printf("sector %s at offset %s\n", retstr, s1); |
e3aff4f6 | 885 | else |
838ab728 AL |
886 | printf("%d/%d sectors %s at offset %s\n", |
887 | num, nb_sectors, retstr, s1); | |
e3aff4f6 AL |
888 | return 0; |
889 | } | |
890 | ||
891 | static const cmdinfo_t alloc_cmd = { | |
892 | .name = "alloc", | |
893 | .altname = "a", | |
894 | .argmin = 1, | |
895 | .argmax = 2, | |
896 | .cfunc = alloc_f, | |
897 | .args = "off [sectors]", | |
898 | .oneline = "checks if a sector is present in the file", | |
899 | }; | |
900 | ||
901 | static int | |
902 | close_f(int argc, char **argv) | |
903 | { | |
904 | bdrv_close(bs); | |
905 | bs = NULL; | |
906 | return 0; | |
907 | } | |
908 | ||
909 | static const cmdinfo_t close_cmd = { | |
910 | .name = "close", | |
911 | .altname = "c", | |
912 | .cfunc = close_f, | |
913 | .oneline = "close the current open file", | |
914 | }; | |
915 | ||
916 | static int openfile(char *name, int flags) | |
917 | { | |
918 | if (bs) { | |
919 | fprintf(stderr, "file open already, try 'help close'\n"); | |
920 | return 1; | |
921 | } | |
922 | ||
923 | bs = bdrv_new("hda"); | |
924 | if (!bs) | |
925 | return 1; | |
926 | ||
927 | if (bdrv_open(bs, name, flags) == -1) { | |
928 | fprintf(stderr, "%s: can't open device %s\n", progname, name); | |
929 | bs = NULL; | |
930 | return 1; | |
931 | } | |
932 | ||
933 | return 0; | |
934 | } | |
935 | ||
936 | static void | |
937 | open_help(void) | |
938 | { | |
939 | printf( | |
940 | "\n" | |
941 | " opens a new file in the requested mode\n" | |
942 | "\n" | |
943 | " Example:\n" | |
944 | " 'open -Cn /tmp/data' - creates/opens data file read-write and uncached\n" | |
945 | "\n" | |
946 | " Opens a file for subsequent use by all of the other qemu-io commands.\n" | |
947 | " -C, -- create new file if it doesn't exist\n" | |
948 | " -r, -- open file read-only\n" | |
949 | " -s, -- use snapshot file\n" | |
950 | " -n, -- disable host cache\n" | |
951 | "\n"); | |
952 | } | |
953 | ||
954 | static const cmdinfo_t open_cmd; | |
955 | ||
956 | static int | |
957 | open_f(int argc, char **argv) | |
958 | { | |
959 | int flags = 0; | |
960 | int readonly = 0; | |
961 | int c; | |
962 | ||
963 | while ((c = getopt(argc, argv, "snCr")) != EOF) { | |
964 | switch (c) { | |
965 | case 's': | |
966 | flags |= BDRV_O_SNAPSHOT; | |
967 | break; | |
968 | case 'n': | |
969 | flags |= BDRV_O_NOCACHE; | |
970 | break; | |
971 | case 'C': | |
972 | flags |= BDRV_O_CREAT; | |
973 | break; | |
974 | case 'r': | |
975 | readonly = 1; | |
976 | break; | |
977 | default: | |
978 | return command_usage(&open_cmd); | |
979 | } | |
980 | } | |
981 | ||
982 | if (readonly) | |
983 | flags |= BDRV_O_RDONLY; | |
984 | else | |
985 | flags |= BDRV_O_RDWR; | |
986 | ||
987 | if (optind != argc - 1) | |
988 | return command_usage(&open_cmd); | |
989 | ||
990 | return openfile(argv[optind], flags); | |
991 | } | |
992 | ||
993 | static const cmdinfo_t open_cmd = { | |
994 | .name = "open", | |
995 | .altname = "o", | |
996 | .cfunc = open_f, | |
997 | .argmin = 1, | |
998 | .argmax = -1, | |
999 | .flags = CMD_NOFILE_OK, | |
1000 | .args = "[-Crsn] [path]", | |
1001 | .oneline = "open the file specified by path", | |
1002 | .help = open_help, | |
1003 | }; | |
1004 | ||
1005 | static int | |
1006 | init_args_command( | |
1007 | int index) | |
1008 | { | |
1009 | /* only one device allowed so far */ | |
1010 | if (index >= 1) | |
1011 | return 0; | |
1012 | return ++index; | |
1013 | } | |
1014 | ||
1015 | static int | |
1016 | init_check_command( | |
1017 | const cmdinfo_t *ct) | |
1018 | { | |
1019 | if (ct->flags & CMD_FLAG_GLOBAL) | |
1020 | return 1; | |
1021 | if (!(ct->flags & CMD_NOFILE_OK) && !bs) { | |
1022 | fprintf(stderr, "no file open, try 'help open'\n"); | |
1023 | return 0; | |
1024 | } | |
1025 | return 1; | |
1026 | } | |
1027 | ||
1028 | static void usage(const char *name) | |
1029 | { | |
1030 | printf( | |
1031 | "Usage: %s [-h] [-V] [-Crsnm] [-c cmd] ... [file]\n" | |
1032 | "QEMU Disk excerciser\n" | |
1033 | "\n" | |
1034 | " -C, --create create new file if it doesn't exist\n" | |
1035 | " -c, --cmd command to execute\n" | |
1036 | " -r, --read-only export read-only\n" | |
1037 | " -s, --snapshot use snapshot file\n" | |
1038 | " -n, --nocache disable host cache\n" | |
1039 | " -m, --misalign misalign allocations for O_DIRECT\n" | |
1040 | " -h, --help display this help and exit\n" | |
1041 | " -V, --version output version information and exit\n" | |
1042 | "\n", | |
1043 | name); | |
1044 | } | |
1045 | ||
1046 | ||
1047 | int main(int argc, char **argv) | |
1048 | { | |
1049 | int readonly = 0; | |
1050 | const char *sopt = "hVc:Crsnm"; | |
1051 | struct option lopt[] = { | |
1052 | { "help", 0, 0, 'h' }, | |
1053 | { "version", 0, 0, 'V' }, | |
1054 | { "offset", 1, 0, 'o' }, | |
1055 | { "cmd", 1, 0, 'c' }, | |
1056 | { "create", 0, 0, 'C' }, | |
1057 | { "read-only", 0, 0, 'r' }, | |
1058 | { "snapshot", 0, 0, 's' }, | |
1059 | { "nocache", 0, 0, 'n' }, | |
1060 | { "misalign", 0, 0, 'm' }, | |
1061 | { NULL, 0, 0, 0 } | |
1062 | }; | |
1063 | int c; | |
1064 | int opt_index = 0; | |
1065 | int flags = 0; | |
1066 | ||
1067 | progname = basename(argv[0]); | |
1068 | ||
1069 | while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) { | |
1070 | switch (c) { | |
1071 | case 's': | |
1072 | flags |= BDRV_O_SNAPSHOT; | |
1073 | break; | |
1074 | case 'n': | |
1075 | flags |= BDRV_O_NOCACHE; | |
1076 | break; | |
1077 | case 'c': | |
1078 | add_user_command(optarg); | |
1079 | break; | |
1080 | case 'C': | |
1081 | flags |= BDRV_O_CREAT; | |
1082 | break; | |
1083 | case 'r': | |
1084 | readonly = 1; | |
1085 | break; | |
1086 | case 'm': | |
1087 | misalign = 1; | |
1088 | break; | |
1089 | case 'V': | |
1090 | printf("%s version %s\n", progname, VERSION); | |
1091 | exit(0); | |
1092 | case 'h': | |
1093 | usage(progname); | |
1094 | exit(0); | |
1095 | default: | |
1096 | usage(progname); | |
1097 | exit(1); | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | if ((argc - optind) > 1) { | |
1102 | usage(progname); | |
1103 | exit(1); | |
1104 | } | |
1105 | ||
1106 | bdrv_init(); | |
1107 | ||
1108 | /* initialize commands */ | |
1109 | quit_init(); | |
1110 | help_init(); | |
1111 | add_command(&open_cmd); | |
1112 | add_command(&close_cmd); | |
1113 | add_command(&read_cmd); | |
1114 | add_command(&readv_cmd); | |
1115 | add_command(&write_cmd); | |
1116 | add_command(&writev_cmd); | |
1117 | add_command(&flush_cmd); | |
1118 | add_command(&truncate_cmd); | |
1119 | add_command(&length_cmd); | |
1120 | add_command(&info_cmd); | |
1121 | add_command(&alloc_cmd); | |
1122 | ||
1123 | add_args_command(init_args_command); | |
1124 | add_check_command(init_check_command); | |
1125 | ||
1126 | /* open the device */ | |
1127 | if (readonly) | |
1128 | flags |= BDRV_O_RDONLY; | |
1129 | else | |
1130 | flags |= BDRV_O_RDWR; | |
1131 | ||
1132 | if ((argc - optind) == 1) | |
1133 | openfile(argv[optind], flags); | |
1134 | command_loop(); | |
1135 | ||
1136 | if (bs) | |
1137 | bdrv_close(bs); | |
1138 | return 0; | |
1139 | } |