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