Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 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 | |
Kevin Wolf | 3d21994 | 2013-06-05 14:19:39 +0200 | [diff] [blame] | 11 | #include "qemu-io.h" |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 12 | #include "block/block_int.h" |
Max Reitz | a8d8ecb | 2013-10-09 10:46:17 +0200 | [diff] [blame] | 13 | #include "block/qapi.h" |
Alex Bligh | 6a1751b | 2013-08-21 16:02:47 +0100 | [diff] [blame] | 14 | #include "qemu/main-loop.h" |
Kevin Wolf | cd33d02 | 2014-01-15 15:39:10 +0100 | [diff] [blame] | 15 | #include "qemu/timer.h" |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 16 | |
| 17 | #define CMD_NOFILE_OK 0x01 |
| 18 | |
Stefan Weil | f988388 | 2014-03-05 22:23:00 +0100 | [diff] [blame] | 19 | bool qemuio_misalign; |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 20 | |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 21 | static cmdinfo_t *cmdtab; |
| 22 | static int ncmds; |
| 23 | |
| 24 | static int compare_cmdname(const void *a, const void *b) |
| 25 | { |
| 26 | return strcmp(((const cmdinfo_t *)a)->name, |
| 27 | ((const cmdinfo_t *)b)->name); |
| 28 | } |
| 29 | |
| 30 | void qemuio_add_command(const cmdinfo_t *ci) |
| 31 | { |
Markus Armbruster | 02c4f26 | 2014-08-19 10:31:09 +0200 | [diff] [blame] | 32 | cmdtab = g_renew(cmdinfo_t, cmdtab, ++ncmds); |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 33 | cmdtab[ncmds - 1] = *ci; |
| 34 | qsort(cmdtab, ncmds, sizeof(*cmdtab), compare_cmdname); |
| 35 | } |
| 36 | |
| 37 | int qemuio_command_usage(const cmdinfo_t *ci) |
| 38 | { |
| 39 | printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline); |
| 40 | return 0; |
| 41 | } |
| 42 | |
| 43 | static int init_check_command(BlockDriverState *bs, const cmdinfo_t *ct) |
| 44 | { |
| 45 | if (ct->flags & CMD_FLAG_GLOBAL) { |
| 46 | return 1; |
| 47 | } |
| 48 | if (!(ct->flags & CMD_NOFILE_OK) && !bs) { |
| 49 | fprintf(stderr, "no file open, try 'help open'\n"); |
| 50 | return 0; |
| 51 | } |
| 52 | return 1; |
| 53 | } |
| 54 | |
Kevin Wolf | 3d21994 | 2013-06-05 14:19:39 +0200 | [diff] [blame] | 55 | static int command(BlockDriverState *bs, const cmdinfo_t *ct, int argc, |
| 56 | char **argv) |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 57 | { |
| 58 | char *cmd = argv[0]; |
| 59 | |
Kevin Wolf | 3d21994 | 2013-06-05 14:19:39 +0200 | [diff] [blame] | 60 | if (!init_check_command(bs, ct)) { |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 61 | return 0; |
| 62 | } |
| 63 | |
| 64 | if (argc - 1 < ct->argmin || (ct->argmax != -1 && argc - 1 > ct->argmax)) { |
| 65 | if (ct->argmax == -1) { |
| 66 | fprintf(stderr, |
| 67 | "bad argument count %d to %s, expected at least %d arguments\n", |
| 68 | argc-1, cmd, ct->argmin); |
| 69 | } else if (ct->argmin == ct->argmax) { |
| 70 | fprintf(stderr, |
| 71 | "bad argument count %d to %s, expected %d arguments\n", |
| 72 | argc-1, cmd, ct->argmin); |
| 73 | } else { |
| 74 | fprintf(stderr, |
| 75 | "bad argument count %d to %s, expected between %d and %d arguments\n", |
| 76 | argc-1, cmd, ct->argmin, ct->argmax); |
| 77 | } |
| 78 | return 0; |
| 79 | } |
| 80 | optind = 0; |
Kevin Wolf | 3d21994 | 2013-06-05 14:19:39 +0200 | [diff] [blame] | 81 | return ct->cfunc(bs, argc, argv); |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | static const cmdinfo_t *find_command(const char *cmd) |
| 85 | { |
| 86 | cmdinfo_t *ct; |
| 87 | |
| 88 | for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { |
| 89 | if (strcmp(ct->name, cmd) == 0 || |
| 90 | (ct->altname && strcmp(ct->altname, cmd) == 0)) |
| 91 | { |
| 92 | return (const cmdinfo_t *)ct; |
| 93 | } |
| 94 | } |
| 95 | return NULL; |
| 96 | } |
| 97 | |
Stefan Hajnoczi | 4694020 | 2013-11-14 11:54:18 +0100 | [diff] [blame] | 98 | /* Invoke fn() for commands with a matching prefix */ |
| 99 | void qemuio_complete_command(const char *input, |
| 100 | void (*fn)(const char *cmd, void *opaque), |
| 101 | void *opaque) |
| 102 | { |
| 103 | cmdinfo_t *ct; |
| 104 | size_t input_len = strlen(input); |
| 105 | |
| 106 | for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { |
| 107 | if (strncmp(input, ct->name, input_len) == 0) { |
| 108 | fn(ct->name, opaque); |
| 109 | } |
| 110 | } |
| 111 | } |
| 112 | |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 113 | static char **breakline(char *input, int *count) |
| 114 | { |
| 115 | int c = 0; |
| 116 | char *p; |
Markus Armbruster | 5839e53 | 2014-08-19 10:31:08 +0200 | [diff] [blame] | 117 | char **rval = g_new0(char *, 1); |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 118 | |
| 119 | while (rval && (p = qemu_strsep(&input, " ")) != NULL) { |
| 120 | if (!*p) { |
| 121 | continue; |
| 122 | } |
| 123 | c++; |
Markus Armbruster | 08193dd | 2014-08-19 10:31:10 +0200 | [diff] [blame] | 124 | rval = g_renew(char *, rval, (c + 1)); |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 125 | rval[c - 1] = p; |
| 126 | rval[c] = NULL; |
| 127 | } |
| 128 | *count = c; |
| 129 | return rval; |
| 130 | } |
| 131 | |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 132 | static int64_t cvtnum(const char *s) |
| 133 | { |
| 134 | char *end; |
| 135 | return strtosz_suffix(s, &end, STRTOSZ_DEFSUFFIX_B); |
| 136 | } |
| 137 | |
Kevin Wolf | 0b61388 | 2013-06-05 14:19:38 +0200 | [diff] [blame] | 138 | #define EXABYTES(x) ((long long)(x) << 60) |
| 139 | #define PETABYTES(x) ((long long)(x) << 50) |
| 140 | #define TERABYTES(x) ((long long)(x) << 40) |
| 141 | #define GIGABYTES(x) ((long long)(x) << 30) |
| 142 | #define MEGABYTES(x) ((long long)(x) << 20) |
| 143 | #define KILOBYTES(x) ((long long)(x) << 10) |
| 144 | |
| 145 | #define TO_EXABYTES(x) ((x) / EXABYTES(1)) |
| 146 | #define TO_PETABYTES(x) ((x) / PETABYTES(1)) |
| 147 | #define TO_TERABYTES(x) ((x) / TERABYTES(1)) |
| 148 | #define TO_GIGABYTES(x) ((x) / GIGABYTES(1)) |
| 149 | #define TO_MEGABYTES(x) ((x) / MEGABYTES(1)) |
| 150 | #define TO_KILOBYTES(x) ((x) / KILOBYTES(1)) |
| 151 | |
| 152 | static void cvtstr(double value, char *str, size_t size) |
| 153 | { |
| 154 | char *trim; |
| 155 | const char *suffix; |
| 156 | |
| 157 | if (value >= EXABYTES(1)) { |
| 158 | suffix = " EiB"; |
| 159 | snprintf(str, size - 4, "%.3f", TO_EXABYTES(value)); |
| 160 | } else if (value >= PETABYTES(1)) { |
| 161 | suffix = " PiB"; |
| 162 | snprintf(str, size - 4, "%.3f", TO_PETABYTES(value)); |
| 163 | } else if (value >= TERABYTES(1)) { |
| 164 | suffix = " TiB"; |
| 165 | snprintf(str, size - 4, "%.3f", TO_TERABYTES(value)); |
| 166 | } else if (value >= GIGABYTES(1)) { |
| 167 | suffix = " GiB"; |
| 168 | snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value)); |
| 169 | } else if (value >= MEGABYTES(1)) { |
| 170 | suffix = " MiB"; |
| 171 | snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value)); |
| 172 | } else if (value >= KILOBYTES(1)) { |
| 173 | suffix = " KiB"; |
| 174 | snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value)); |
| 175 | } else { |
| 176 | suffix = " bytes"; |
| 177 | snprintf(str, size - 6, "%f", value); |
| 178 | } |
| 179 | |
| 180 | trim = strstr(str, ".000"); |
| 181 | if (trim) { |
| 182 | strcpy(trim, suffix); |
| 183 | } else { |
| 184 | strcat(str, suffix); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | |
| 189 | |
| 190 | static struct timeval tsub(struct timeval t1, struct timeval t2) |
| 191 | { |
| 192 | t1.tv_usec -= t2.tv_usec; |
| 193 | if (t1.tv_usec < 0) { |
| 194 | t1.tv_usec += 1000000; |
| 195 | t1.tv_sec--; |
| 196 | } |
| 197 | t1.tv_sec -= t2.tv_sec; |
| 198 | return t1; |
| 199 | } |
| 200 | |
| 201 | static double tdiv(double value, struct timeval tv) |
| 202 | { |
| 203 | return value / ((double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0)); |
| 204 | } |
| 205 | |
| 206 | #define HOURS(sec) ((sec) / (60 * 60)) |
| 207 | #define MINUTES(sec) (((sec) % (60 * 60)) / 60) |
| 208 | #define SECONDS(sec) ((sec) % 60) |
| 209 | |
| 210 | enum { |
| 211 | DEFAULT_TIME = 0x0, |
| 212 | TERSE_FIXED_TIME = 0x1, |
| 213 | VERBOSE_FIXED_TIME = 0x2, |
| 214 | }; |
| 215 | |
| 216 | static void timestr(struct timeval *tv, char *ts, size_t size, int format) |
| 217 | { |
| 218 | double usec = (double)tv->tv_usec / 1000000.0; |
| 219 | |
| 220 | if (format & TERSE_FIXED_TIME) { |
| 221 | if (!HOURS(tv->tv_sec)) { |
| 222 | snprintf(ts, size, "%u:%02u.%02u", |
| 223 | (unsigned int) MINUTES(tv->tv_sec), |
| 224 | (unsigned int) SECONDS(tv->tv_sec), |
| 225 | (unsigned int) (usec * 100)); |
| 226 | return; |
| 227 | } |
| 228 | format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */ |
| 229 | } |
| 230 | |
| 231 | if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) { |
| 232 | snprintf(ts, size, "%u:%02u:%02u.%02u", |
| 233 | (unsigned int) HOURS(tv->tv_sec), |
| 234 | (unsigned int) MINUTES(tv->tv_sec), |
| 235 | (unsigned int) SECONDS(tv->tv_sec), |
| 236 | (unsigned int) (usec * 100)); |
| 237 | } else { |
| 238 | snprintf(ts, size, "0.%04u sec", (unsigned int) (usec * 10000)); |
| 239 | } |
| 240 | } |
| 241 | |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 242 | /* |
| 243 | * Parse the pattern argument to various sub-commands. |
| 244 | * |
| 245 | * Because the pattern is used as an argument to memset it must evaluate |
| 246 | * to an unsigned integer that fits into a single byte. |
| 247 | */ |
| 248 | static int parse_pattern(const char *arg) |
| 249 | { |
| 250 | char *endptr = NULL; |
| 251 | long pattern; |
| 252 | |
| 253 | pattern = strtol(arg, &endptr, 0); |
| 254 | if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { |
| 255 | printf("%s is not a valid pattern byte\n", arg); |
| 256 | return -1; |
| 257 | } |
| 258 | |
| 259 | return pattern; |
| 260 | } |
| 261 | |
| 262 | /* |
| 263 | * Memory allocation helpers. |
| 264 | * |
| 265 | * Make sure memory is aligned by default, or purposefully misaligned if |
| 266 | * that is specified on the command line. |
| 267 | */ |
| 268 | |
| 269 | #define MISALIGN_OFFSET 16 |
| 270 | static void *qemu_io_alloc(BlockDriverState *bs, size_t len, int pattern) |
| 271 | { |
| 272 | void *buf; |
| 273 | |
| 274 | if (qemuio_misalign) { |
| 275 | len += MISALIGN_OFFSET; |
| 276 | } |
| 277 | buf = qemu_blockalign(bs, len); |
| 278 | memset(buf, pattern, len); |
| 279 | if (qemuio_misalign) { |
| 280 | buf += MISALIGN_OFFSET; |
| 281 | } |
| 282 | return buf; |
| 283 | } |
| 284 | |
| 285 | static void qemu_io_free(void *p) |
| 286 | { |
| 287 | if (qemuio_misalign) { |
| 288 | p -= MISALIGN_OFFSET; |
| 289 | } |
| 290 | qemu_vfree(p); |
| 291 | } |
| 292 | |
| 293 | static void dump_buffer(const void *buffer, int64_t offset, int len) |
| 294 | { |
| 295 | int i, j; |
| 296 | const uint8_t *p; |
| 297 | |
| 298 | for (i = 0, p = buffer; i < len; i += 16) { |
| 299 | const uint8_t *s = p; |
| 300 | |
| 301 | printf("%08" PRIx64 ": ", offset + i); |
| 302 | for (j = 0; j < 16 && i + j < len; j++, p++) { |
| 303 | printf("%02x ", *p); |
| 304 | } |
| 305 | printf(" "); |
| 306 | for (j = 0; j < 16 && i + j < len; j++, s++) { |
| 307 | if (isalnum(*s)) { |
| 308 | printf("%c", *s); |
| 309 | } else { |
| 310 | printf("."); |
| 311 | } |
| 312 | } |
| 313 | printf("\n"); |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | static void print_report(const char *op, struct timeval *t, int64_t offset, |
| 318 | int count, int total, int cnt, int Cflag) |
| 319 | { |
| 320 | char s1[64], s2[64], ts[64]; |
| 321 | |
| 322 | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); |
| 323 | if (!Cflag) { |
| 324 | cvtstr((double)total, s1, sizeof(s1)); |
| 325 | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); |
| 326 | printf("%s %d/%d bytes at offset %" PRId64 "\n", |
| 327 | op, total, count, offset); |
| 328 | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", |
| 329 | s1, cnt, ts, s2, tdiv((double)cnt, *t)); |
| 330 | } else {/* bytes,ops,time,bytes/sec,ops/sec */ |
| 331 | printf("%d,%d,%s,%.3f,%.3f\n", |
| 332 | total, cnt, ts, |
| 333 | tdiv((double)total, *t), |
| 334 | tdiv((double)cnt, *t)); |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | /* |
| 339 | * Parse multiple length statements for vectored I/O, and construct an I/O |
| 340 | * vector matching it. |
| 341 | */ |
| 342 | static void * |
| 343 | create_iovec(BlockDriverState *bs, QEMUIOVector *qiov, char **argv, int nr_iov, |
| 344 | int pattern) |
| 345 | { |
| 346 | size_t *sizes = g_new0(size_t, nr_iov); |
| 347 | size_t count = 0; |
| 348 | void *buf = NULL; |
| 349 | void *p; |
| 350 | int i; |
| 351 | |
| 352 | for (i = 0; i < nr_iov; i++) { |
| 353 | char *arg = argv[i]; |
| 354 | int64_t len; |
| 355 | |
| 356 | len = cvtnum(arg); |
| 357 | if (len < 0) { |
| 358 | printf("non-numeric length argument -- %s\n", arg); |
| 359 | goto fail; |
| 360 | } |
| 361 | |
| 362 | /* should be SIZE_T_MAX, but that doesn't exist */ |
| 363 | if (len > INT_MAX) { |
| 364 | printf("too large length argument -- %s\n", arg); |
| 365 | goto fail; |
| 366 | } |
| 367 | |
| 368 | if (len & 0x1ff) { |
| 369 | printf("length argument %" PRId64 |
| 370 | " is not sector aligned\n", len); |
| 371 | goto fail; |
| 372 | } |
| 373 | |
| 374 | sizes[i] = len; |
| 375 | count += len; |
| 376 | } |
| 377 | |
| 378 | qemu_iovec_init(qiov, nr_iov); |
| 379 | |
| 380 | buf = p = qemu_io_alloc(bs, count, pattern); |
| 381 | |
| 382 | for (i = 0; i < nr_iov; i++) { |
| 383 | qemu_iovec_add(qiov, p, sizes[i]); |
| 384 | p += sizes[i]; |
| 385 | } |
| 386 | |
| 387 | fail: |
| 388 | g_free(sizes); |
| 389 | return buf; |
| 390 | } |
| 391 | |
| 392 | static int do_read(BlockDriverState *bs, char *buf, int64_t offset, int count, |
| 393 | int *total) |
| 394 | { |
| 395 | int ret; |
| 396 | |
| 397 | ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
| 398 | if (ret < 0) { |
| 399 | return ret; |
| 400 | } |
| 401 | *total = count; |
| 402 | return 1; |
| 403 | } |
| 404 | |
| 405 | static int do_write(BlockDriverState *bs, char *buf, int64_t offset, int count, |
| 406 | int *total) |
| 407 | { |
| 408 | int ret; |
| 409 | |
| 410 | ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
| 411 | if (ret < 0) { |
| 412 | return ret; |
| 413 | } |
| 414 | *total = count; |
| 415 | return 1; |
| 416 | } |
| 417 | |
| 418 | static int do_pread(BlockDriverState *bs, char *buf, int64_t offset, int count, |
| 419 | int *total) |
| 420 | { |
| 421 | *total = bdrv_pread(bs, offset, (uint8_t *)buf, count); |
| 422 | if (*total < 0) { |
| 423 | return *total; |
| 424 | } |
| 425 | return 1; |
| 426 | } |
| 427 | |
| 428 | static int do_pwrite(BlockDriverState *bs, char *buf, int64_t offset, int count, |
| 429 | int *total) |
| 430 | { |
| 431 | *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count); |
| 432 | if (*total < 0) { |
| 433 | return *total; |
| 434 | } |
| 435 | return 1; |
| 436 | } |
| 437 | |
| 438 | typedef struct { |
| 439 | BlockDriverState *bs; |
| 440 | int64_t offset; |
| 441 | int count; |
| 442 | int *total; |
| 443 | int ret; |
| 444 | bool done; |
| 445 | } CoWriteZeroes; |
| 446 | |
| 447 | static void coroutine_fn co_write_zeroes_entry(void *opaque) |
| 448 | { |
| 449 | CoWriteZeroes *data = opaque; |
| 450 | |
| 451 | data->ret = bdrv_co_write_zeroes(data->bs, data->offset / BDRV_SECTOR_SIZE, |
Peter Lieven | aa7bfbf | 2013-10-24 12:06:51 +0200 | [diff] [blame] | 452 | data->count / BDRV_SECTOR_SIZE, 0); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 453 | data->done = true; |
| 454 | if (data->ret < 0) { |
| 455 | *data->total = data->ret; |
| 456 | return; |
| 457 | } |
| 458 | |
| 459 | *data->total = data->count; |
| 460 | } |
| 461 | |
| 462 | static int do_co_write_zeroes(BlockDriverState *bs, int64_t offset, int count, |
| 463 | int *total) |
| 464 | { |
| 465 | Coroutine *co; |
| 466 | CoWriteZeroes data = { |
| 467 | .bs = bs, |
| 468 | .offset = offset, |
| 469 | .count = count, |
| 470 | .total = total, |
| 471 | .done = false, |
| 472 | }; |
| 473 | |
| 474 | co = qemu_coroutine_create(co_write_zeroes_entry); |
| 475 | qemu_coroutine_enter(co, &data); |
| 476 | while (!data.done) { |
Paolo Bonzini | b47ec2c | 2014-07-07 15:18:01 +0200 | [diff] [blame] | 477 | aio_poll(bdrv_get_aio_context(bs), true); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 478 | } |
| 479 | if (data.ret < 0) { |
| 480 | return data.ret; |
| 481 | } else { |
| 482 | return 1; |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | static int do_write_compressed(BlockDriverState *bs, char *buf, int64_t offset, |
| 487 | int count, int *total) |
| 488 | { |
| 489 | int ret; |
| 490 | |
| 491 | ret = bdrv_write_compressed(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
| 492 | if (ret < 0) { |
| 493 | return ret; |
| 494 | } |
| 495 | *total = count; |
| 496 | return 1; |
| 497 | } |
| 498 | |
| 499 | static int do_load_vmstate(BlockDriverState *bs, char *buf, int64_t offset, |
| 500 | int count, int *total) |
| 501 | { |
| 502 | *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count); |
| 503 | if (*total < 0) { |
| 504 | return *total; |
| 505 | } |
| 506 | return 1; |
| 507 | } |
| 508 | |
| 509 | static int do_save_vmstate(BlockDriverState *bs, char *buf, int64_t offset, |
| 510 | int count, int *total) |
| 511 | { |
| 512 | *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count); |
| 513 | if (*total < 0) { |
| 514 | return *total; |
| 515 | } |
| 516 | return 1; |
| 517 | } |
| 518 | |
| 519 | #define NOT_DONE 0x7fffffff |
| 520 | static void aio_rw_done(void *opaque, int ret) |
| 521 | { |
| 522 | *(int *)opaque = ret; |
| 523 | } |
| 524 | |
| 525 | static int do_aio_readv(BlockDriverState *bs, QEMUIOVector *qiov, |
| 526 | int64_t offset, int *total) |
| 527 | { |
| 528 | int async_ret = NOT_DONE; |
| 529 | |
| 530 | bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9, |
| 531 | aio_rw_done, &async_ret); |
| 532 | while (async_ret == NOT_DONE) { |
| 533 | main_loop_wait(false); |
| 534 | } |
| 535 | |
| 536 | *total = qiov->size; |
| 537 | return async_ret < 0 ? async_ret : 1; |
| 538 | } |
| 539 | |
| 540 | static int do_aio_writev(BlockDriverState *bs, QEMUIOVector *qiov, |
| 541 | int64_t offset, int *total) |
| 542 | { |
| 543 | int async_ret = NOT_DONE; |
| 544 | |
| 545 | bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9, |
| 546 | aio_rw_done, &async_ret); |
| 547 | while (async_ret == NOT_DONE) { |
| 548 | main_loop_wait(false); |
| 549 | } |
| 550 | |
| 551 | *total = qiov->size; |
| 552 | return async_ret < 0 ? async_ret : 1; |
| 553 | } |
| 554 | |
| 555 | struct multiwrite_async_ret { |
| 556 | int num_done; |
| 557 | int error; |
| 558 | }; |
| 559 | |
| 560 | static void multiwrite_cb(void *opaque, int ret) |
| 561 | { |
| 562 | struct multiwrite_async_ret *async_ret = opaque; |
| 563 | |
| 564 | async_ret->num_done++; |
| 565 | if (ret < 0) { |
| 566 | async_ret->error = ret; |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | static int do_aio_multiwrite(BlockDriverState *bs, BlockRequest* reqs, |
| 571 | int num_reqs, int *total) |
| 572 | { |
| 573 | int i, ret; |
| 574 | struct multiwrite_async_ret async_ret = { |
| 575 | .num_done = 0, |
| 576 | .error = 0, |
| 577 | }; |
| 578 | |
| 579 | *total = 0; |
| 580 | for (i = 0; i < num_reqs; i++) { |
| 581 | reqs[i].cb = multiwrite_cb; |
| 582 | reqs[i].opaque = &async_ret; |
| 583 | *total += reqs[i].qiov->size; |
| 584 | } |
| 585 | |
| 586 | ret = bdrv_aio_multiwrite(bs, reqs, num_reqs); |
| 587 | if (ret < 0) { |
| 588 | return ret; |
| 589 | } |
| 590 | |
| 591 | while (async_ret.num_done < num_reqs) { |
| 592 | main_loop_wait(false); |
| 593 | } |
| 594 | |
| 595 | return async_ret.error < 0 ? async_ret.error : 1; |
| 596 | } |
| 597 | |
| 598 | static void read_help(void) |
| 599 | { |
| 600 | printf( |
| 601 | "\n" |
| 602 | " reads a range of bytes from the given offset\n" |
| 603 | "\n" |
| 604 | " Example:\n" |
| 605 | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" |
| 606 | "\n" |
| 607 | " Reads a segment of the currently open file, optionally dumping it to the\n" |
| 608 | " standard output stream (with -v option) for subsequent inspection.\n" |
| 609 | " -b, -- read from the VM state rather than the virtual disk\n" |
| 610 | " -C, -- report statistics in a machine parsable format\n" |
| 611 | " -l, -- length for pattern verification (only with -P)\n" |
| 612 | " -p, -- use bdrv_pread to read the file\n" |
| 613 | " -P, -- use a pattern to verify read data\n" |
| 614 | " -q, -- quiet mode, do not show I/O statistics\n" |
| 615 | " -s, -- start offset for pattern verification (only with -P)\n" |
| 616 | " -v, -- dump buffer to standard output\n" |
| 617 | "\n"); |
| 618 | } |
| 619 | |
| 620 | static int read_f(BlockDriverState *bs, int argc, char **argv); |
| 621 | |
| 622 | static const cmdinfo_t read_cmd = { |
| 623 | .name = "read", |
| 624 | .altname = "r", |
| 625 | .cfunc = read_f, |
| 626 | .argmin = 2, |
| 627 | .argmax = -1, |
| 628 | .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len", |
| 629 | .oneline = "reads a number of bytes at a specified offset", |
| 630 | .help = read_help, |
| 631 | }; |
| 632 | |
| 633 | static int read_f(BlockDriverState *bs, int argc, char **argv) |
| 634 | { |
| 635 | struct timeval t1, t2; |
| 636 | int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; |
| 637 | int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; |
| 638 | int c, cnt; |
| 639 | char *buf; |
| 640 | int64_t offset; |
| 641 | int count; |
| 642 | /* Some compilers get confused and warn if this is not initialized. */ |
| 643 | int total = 0; |
| 644 | int pattern = 0, pattern_offset = 0, pattern_count = 0; |
| 645 | |
| 646 | while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) { |
| 647 | switch (c) { |
| 648 | case 'b': |
| 649 | bflag = 1; |
| 650 | break; |
| 651 | case 'C': |
| 652 | Cflag = 1; |
| 653 | break; |
| 654 | case 'l': |
| 655 | lflag = 1; |
| 656 | pattern_count = cvtnum(optarg); |
| 657 | if (pattern_count < 0) { |
| 658 | printf("non-numeric length argument -- %s\n", optarg); |
| 659 | return 0; |
| 660 | } |
| 661 | break; |
| 662 | case 'p': |
| 663 | pflag = 1; |
| 664 | break; |
| 665 | case 'P': |
| 666 | Pflag = 1; |
| 667 | pattern = parse_pattern(optarg); |
| 668 | if (pattern < 0) { |
| 669 | return 0; |
| 670 | } |
| 671 | break; |
| 672 | case 'q': |
| 673 | qflag = 1; |
| 674 | break; |
| 675 | case 's': |
| 676 | sflag = 1; |
| 677 | pattern_offset = cvtnum(optarg); |
| 678 | if (pattern_offset < 0) { |
| 679 | printf("non-numeric length argument -- %s\n", optarg); |
| 680 | return 0; |
| 681 | } |
| 682 | break; |
| 683 | case 'v': |
| 684 | vflag = 1; |
| 685 | break; |
| 686 | default: |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 687 | return qemuio_command_usage(&read_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 688 | } |
| 689 | } |
| 690 | |
| 691 | if (optind != argc - 2) { |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 692 | return qemuio_command_usage(&read_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 693 | } |
| 694 | |
| 695 | if (bflag && pflag) { |
| 696 | printf("-b and -p cannot be specified at the same time\n"); |
| 697 | return 0; |
| 698 | } |
| 699 | |
| 700 | offset = cvtnum(argv[optind]); |
| 701 | if (offset < 0) { |
| 702 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 703 | return 0; |
| 704 | } |
| 705 | |
| 706 | optind++; |
| 707 | count = cvtnum(argv[optind]); |
| 708 | if (count < 0) { |
| 709 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 710 | return 0; |
| 711 | } |
| 712 | |
| 713 | if (!Pflag && (lflag || sflag)) { |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 714 | return qemuio_command_usage(&read_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 715 | } |
| 716 | |
| 717 | if (!lflag) { |
| 718 | pattern_count = count - pattern_offset; |
| 719 | } |
| 720 | |
| 721 | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { |
| 722 | printf("pattern verification range exceeds end of read data\n"); |
| 723 | return 0; |
| 724 | } |
| 725 | |
| 726 | if (!pflag) { |
| 727 | if (offset & 0x1ff) { |
| 728 | printf("offset %" PRId64 " is not sector aligned\n", |
| 729 | offset); |
| 730 | return 0; |
| 731 | } |
| 732 | if (count & 0x1ff) { |
| 733 | printf("count %d is not sector aligned\n", |
| 734 | count); |
| 735 | return 0; |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | buf = qemu_io_alloc(bs, count, 0xab); |
| 740 | |
| 741 | gettimeofday(&t1, NULL); |
| 742 | if (pflag) { |
| 743 | cnt = do_pread(bs, buf, offset, count, &total); |
| 744 | } else if (bflag) { |
| 745 | cnt = do_load_vmstate(bs, buf, offset, count, &total); |
| 746 | } else { |
| 747 | cnt = do_read(bs, buf, offset, count, &total); |
| 748 | } |
| 749 | gettimeofday(&t2, NULL); |
| 750 | |
| 751 | if (cnt < 0) { |
| 752 | printf("read failed: %s\n", strerror(-cnt)); |
| 753 | goto out; |
| 754 | } |
| 755 | |
| 756 | if (Pflag) { |
| 757 | void *cmp_buf = g_malloc(pattern_count); |
| 758 | memset(cmp_buf, pattern, pattern_count); |
| 759 | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { |
| 760 | printf("Pattern verification failed at offset %" |
| 761 | PRId64 ", %d bytes\n", |
| 762 | offset + pattern_offset, pattern_count); |
| 763 | } |
| 764 | g_free(cmp_buf); |
| 765 | } |
| 766 | |
| 767 | if (qflag) { |
| 768 | goto out; |
| 769 | } |
| 770 | |
| 771 | if (vflag) { |
| 772 | dump_buffer(buf, offset, count); |
| 773 | } |
| 774 | |
| 775 | /* Finally, report back -- -C gives a parsable format */ |
| 776 | t2 = tsub(t2, t1); |
| 777 | print_report("read", &t2, offset, count, total, cnt, Cflag); |
| 778 | |
| 779 | out: |
| 780 | qemu_io_free(buf); |
| 781 | |
| 782 | return 0; |
| 783 | } |
| 784 | |
| 785 | static void readv_help(void) |
| 786 | { |
| 787 | printf( |
| 788 | "\n" |
| 789 | " reads a range of bytes from the given offset into multiple buffers\n" |
| 790 | "\n" |
| 791 | " Example:\n" |
| 792 | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" |
| 793 | "\n" |
| 794 | " Reads a segment of the currently open file, optionally dumping it to the\n" |
| 795 | " standard output stream (with -v option) for subsequent inspection.\n" |
| 796 | " Uses multiple iovec buffers if more than one byte range is specified.\n" |
| 797 | " -C, -- report statistics in a machine parsable format\n" |
| 798 | " -P, -- use a pattern to verify read data\n" |
| 799 | " -v, -- dump buffer to standard output\n" |
| 800 | " -q, -- quiet mode, do not show I/O statistics\n" |
| 801 | "\n"); |
| 802 | } |
| 803 | |
| 804 | static int readv_f(BlockDriverState *bs, int argc, char **argv); |
| 805 | |
| 806 | static const cmdinfo_t readv_cmd = { |
| 807 | .name = "readv", |
| 808 | .cfunc = readv_f, |
| 809 | .argmin = 2, |
| 810 | .argmax = -1, |
| 811 | .args = "[-Cqv] [-P pattern ] off len [len..]", |
| 812 | .oneline = "reads a number of bytes at a specified offset", |
| 813 | .help = readv_help, |
| 814 | }; |
| 815 | |
| 816 | static int readv_f(BlockDriverState *bs, int argc, char **argv) |
| 817 | { |
| 818 | struct timeval t1, t2; |
| 819 | int Cflag = 0, qflag = 0, vflag = 0; |
| 820 | int c, cnt; |
| 821 | char *buf; |
| 822 | int64_t offset; |
| 823 | /* Some compilers get confused and warn if this is not initialized. */ |
| 824 | int total = 0; |
| 825 | int nr_iov; |
| 826 | QEMUIOVector qiov; |
| 827 | int pattern = 0; |
| 828 | int Pflag = 0; |
| 829 | |
| 830 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
| 831 | switch (c) { |
| 832 | case 'C': |
| 833 | Cflag = 1; |
| 834 | break; |
| 835 | case 'P': |
| 836 | Pflag = 1; |
| 837 | pattern = parse_pattern(optarg); |
| 838 | if (pattern < 0) { |
| 839 | return 0; |
| 840 | } |
| 841 | break; |
| 842 | case 'q': |
| 843 | qflag = 1; |
| 844 | break; |
| 845 | case 'v': |
| 846 | vflag = 1; |
| 847 | break; |
| 848 | default: |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 849 | return qemuio_command_usage(&readv_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 850 | } |
| 851 | } |
| 852 | |
| 853 | if (optind > argc - 2) { |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 854 | return qemuio_command_usage(&readv_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 855 | } |
| 856 | |
| 857 | |
| 858 | offset = cvtnum(argv[optind]); |
| 859 | if (offset < 0) { |
| 860 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 861 | return 0; |
| 862 | } |
| 863 | optind++; |
| 864 | |
| 865 | if (offset & 0x1ff) { |
| 866 | printf("offset %" PRId64 " is not sector aligned\n", |
| 867 | offset); |
| 868 | return 0; |
| 869 | } |
| 870 | |
| 871 | nr_iov = argc - optind; |
| 872 | buf = create_iovec(bs, &qiov, &argv[optind], nr_iov, 0xab); |
| 873 | if (buf == NULL) { |
| 874 | return 0; |
| 875 | } |
| 876 | |
| 877 | gettimeofday(&t1, NULL); |
| 878 | cnt = do_aio_readv(bs, &qiov, offset, &total); |
| 879 | gettimeofday(&t2, NULL); |
| 880 | |
| 881 | if (cnt < 0) { |
| 882 | printf("readv failed: %s\n", strerror(-cnt)); |
| 883 | goto out; |
| 884 | } |
| 885 | |
| 886 | if (Pflag) { |
| 887 | void *cmp_buf = g_malloc(qiov.size); |
| 888 | memset(cmp_buf, pattern, qiov.size); |
| 889 | if (memcmp(buf, cmp_buf, qiov.size)) { |
| 890 | printf("Pattern verification failed at offset %" |
| 891 | PRId64 ", %zd bytes\n", offset, qiov.size); |
| 892 | } |
| 893 | g_free(cmp_buf); |
| 894 | } |
| 895 | |
| 896 | if (qflag) { |
| 897 | goto out; |
| 898 | } |
| 899 | |
| 900 | if (vflag) { |
| 901 | dump_buffer(buf, offset, qiov.size); |
| 902 | } |
| 903 | |
| 904 | /* Finally, report back -- -C gives a parsable format */ |
| 905 | t2 = tsub(t2, t1); |
| 906 | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); |
| 907 | |
| 908 | out: |
| 909 | qemu_iovec_destroy(&qiov); |
| 910 | qemu_io_free(buf); |
| 911 | return 0; |
| 912 | } |
| 913 | |
| 914 | static void write_help(void) |
| 915 | { |
| 916 | printf( |
| 917 | "\n" |
| 918 | " writes a range of bytes from the given offset\n" |
| 919 | "\n" |
| 920 | " Example:\n" |
| 921 | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" |
| 922 | "\n" |
| 923 | " Writes into a segment of the currently open file, using a buffer\n" |
| 924 | " filled with a set pattern (0xcdcdcdcd).\n" |
| 925 | " -b, -- write to the VM state rather than the virtual disk\n" |
| 926 | " -c, -- write compressed data with bdrv_write_compressed\n" |
| 927 | " -p, -- use bdrv_pwrite to write the file\n" |
| 928 | " -P, -- use different pattern to fill file\n" |
| 929 | " -C, -- report statistics in a machine parsable format\n" |
| 930 | " -q, -- quiet mode, do not show I/O statistics\n" |
| 931 | " -z, -- write zeroes using bdrv_co_write_zeroes\n" |
| 932 | "\n"); |
| 933 | } |
| 934 | |
| 935 | static int write_f(BlockDriverState *bs, int argc, char **argv); |
| 936 | |
| 937 | static const cmdinfo_t write_cmd = { |
| 938 | .name = "write", |
| 939 | .altname = "w", |
| 940 | .cfunc = write_f, |
| 941 | .argmin = 2, |
| 942 | .argmax = -1, |
| 943 | .args = "[-bcCpqz] [-P pattern ] off len", |
| 944 | .oneline = "writes a number of bytes at a specified offset", |
| 945 | .help = write_help, |
| 946 | }; |
| 947 | |
| 948 | static int write_f(BlockDriverState *bs, int argc, char **argv) |
| 949 | { |
| 950 | struct timeval t1, t2; |
| 951 | int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0; |
| 952 | int cflag = 0; |
| 953 | int c, cnt; |
| 954 | char *buf = NULL; |
| 955 | int64_t offset; |
| 956 | int count; |
| 957 | /* Some compilers get confused and warn if this is not initialized. */ |
| 958 | int total = 0; |
| 959 | int pattern = 0xcd; |
| 960 | |
| 961 | while ((c = getopt(argc, argv, "bcCpP:qz")) != EOF) { |
| 962 | switch (c) { |
| 963 | case 'b': |
| 964 | bflag = 1; |
| 965 | break; |
| 966 | case 'c': |
| 967 | cflag = 1; |
| 968 | break; |
| 969 | case 'C': |
| 970 | Cflag = 1; |
| 971 | break; |
| 972 | case 'p': |
| 973 | pflag = 1; |
| 974 | break; |
| 975 | case 'P': |
| 976 | Pflag = 1; |
| 977 | pattern = parse_pattern(optarg); |
| 978 | if (pattern < 0) { |
| 979 | return 0; |
| 980 | } |
| 981 | break; |
| 982 | case 'q': |
| 983 | qflag = 1; |
| 984 | break; |
| 985 | case 'z': |
| 986 | zflag = 1; |
| 987 | break; |
| 988 | default: |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 989 | return qemuio_command_usage(&write_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 990 | } |
| 991 | } |
| 992 | |
| 993 | if (optind != argc - 2) { |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 994 | return qemuio_command_usage(&write_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 995 | } |
| 996 | |
| 997 | if (bflag + pflag + zflag > 1) { |
| 998 | printf("-b, -p, or -z cannot be specified at the same time\n"); |
| 999 | return 0; |
| 1000 | } |
| 1001 | |
| 1002 | if (zflag && Pflag) { |
| 1003 | printf("-z and -P cannot be specified at the same time\n"); |
| 1004 | return 0; |
| 1005 | } |
| 1006 | |
| 1007 | offset = cvtnum(argv[optind]); |
| 1008 | if (offset < 0) { |
| 1009 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1010 | return 0; |
| 1011 | } |
| 1012 | |
| 1013 | optind++; |
| 1014 | count = cvtnum(argv[optind]); |
| 1015 | if (count < 0) { |
| 1016 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1017 | return 0; |
| 1018 | } |
| 1019 | |
| 1020 | if (!pflag) { |
| 1021 | if (offset & 0x1ff) { |
| 1022 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1023 | offset); |
| 1024 | return 0; |
| 1025 | } |
| 1026 | |
| 1027 | if (count & 0x1ff) { |
| 1028 | printf("count %d is not sector aligned\n", |
| 1029 | count); |
| 1030 | return 0; |
| 1031 | } |
| 1032 | } |
| 1033 | |
| 1034 | if (!zflag) { |
| 1035 | buf = qemu_io_alloc(bs, count, pattern); |
| 1036 | } |
| 1037 | |
| 1038 | gettimeofday(&t1, NULL); |
| 1039 | if (pflag) { |
| 1040 | cnt = do_pwrite(bs, buf, offset, count, &total); |
| 1041 | } else if (bflag) { |
| 1042 | cnt = do_save_vmstate(bs, buf, offset, count, &total); |
| 1043 | } else if (zflag) { |
| 1044 | cnt = do_co_write_zeroes(bs, offset, count, &total); |
| 1045 | } else if (cflag) { |
| 1046 | cnt = do_write_compressed(bs, buf, offset, count, &total); |
| 1047 | } else { |
| 1048 | cnt = do_write(bs, buf, offset, count, &total); |
| 1049 | } |
| 1050 | gettimeofday(&t2, NULL); |
| 1051 | |
| 1052 | if (cnt < 0) { |
| 1053 | printf("write failed: %s\n", strerror(-cnt)); |
| 1054 | goto out; |
| 1055 | } |
| 1056 | |
| 1057 | if (qflag) { |
| 1058 | goto out; |
| 1059 | } |
| 1060 | |
| 1061 | /* Finally, report back -- -C gives a parsable format */ |
| 1062 | t2 = tsub(t2, t1); |
| 1063 | print_report("wrote", &t2, offset, count, total, cnt, Cflag); |
| 1064 | |
| 1065 | out: |
| 1066 | if (!zflag) { |
| 1067 | qemu_io_free(buf); |
| 1068 | } |
| 1069 | |
| 1070 | return 0; |
| 1071 | } |
| 1072 | |
| 1073 | static void |
| 1074 | writev_help(void) |
| 1075 | { |
| 1076 | printf( |
| 1077 | "\n" |
| 1078 | " writes a range of bytes from the given offset source from multiple buffers\n" |
| 1079 | "\n" |
| 1080 | " Example:\n" |
Maria Kustova | 6e6507c | 2014-03-18 09:59:17 +0400 | [diff] [blame] | 1081 | " 'writev 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1082 | "\n" |
| 1083 | " Writes into a segment of the currently open file, using a buffer\n" |
| 1084 | " filled with a set pattern (0xcdcdcdcd).\n" |
| 1085 | " -P, -- use different pattern to fill file\n" |
| 1086 | " -C, -- report statistics in a machine parsable format\n" |
| 1087 | " -q, -- quiet mode, do not show I/O statistics\n" |
| 1088 | "\n"); |
| 1089 | } |
| 1090 | |
| 1091 | static int writev_f(BlockDriverState *bs, int argc, char **argv); |
| 1092 | |
| 1093 | static const cmdinfo_t writev_cmd = { |
| 1094 | .name = "writev", |
| 1095 | .cfunc = writev_f, |
| 1096 | .argmin = 2, |
| 1097 | .argmax = -1, |
| 1098 | .args = "[-Cq] [-P pattern ] off len [len..]", |
| 1099 | .oneline = "writes a number of bytes at a specified offset", |
| 1100 | .help = writev_help, |
| 1101 | }; |
| 1102 | |
| 1103 | static int writev_f(BlockDriverState *bs, int argc, char **argv) |
| 1104 | { |
| 1105 | struct timeval t1, t2; |
| 1106 | int Cflag = 0, qflag = 0; |
| 1107 | int c, cnt; |
| 1108 | char *buf; |
| 1109 | int64_t offset; |
| 1110 | /* Some compilers get confused and warn if this is not initialized. */ |
| 1111 | int total = 0; |
| 1112 | int nr_iov; |
| 1113 | int pattern = 0xcd; |
| 1114 | QEMUIOVector qiov; |
| 1115 | |
| 1116 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
| 1117 | switch (c) { |
| 1118 | case 'C': |
| 1119 | Cflag = 1; |
| 1120 | break; |
| 1121 | case 'q': |
| 1122 | qflag = 1; |
| 1123 | break; |
| 1124 | case 'P': |
| 1125 | pattern = parse_pattern(optarg); |
| 1126 | if (pattern < 0) { |
| 1127 | return 0; |
| 1128 | } |
| 1129 | break; |
| 1130 | default: |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 1131 | return qemuio_command_usage(&writev_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1132 | } |
| 1133 | } |
| 1134 | |
| 1135 | if (optind > argc - 2) { |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 1136 | return qemuio_command_usage(&writev_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1137 | } |
| 1138 | |
| 1139 | offset = cvtnum(argv[optind]); |
| 1140 | if (offset < 0) { |
| 1141 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1142 | return 0; |
| 1143 | } |
| 1144 | optind++; |
| 1145 | |
| 1146 | if (offset & 0x1ff) { |
| 1147 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1148 | offset); |
| 1149 | return 0; |
| 1150 | } |
| 1151 | |
| 1152 | nr_iov = argc - optind; |
| 1153 | buf = create_iovec(bs, &qiov, &argv[optind], nr_iov, pattern); |
| 1154 | if (buf == NULL) { |
| 1155 | return 0; |
| 1156 | } |
| 1157 | |
| 1158 | gettimeofday(&t1, NULL); |
| 1159 | cnt = do_aio_writev(bs, &qiov, offset, &total); |
| 1160 | gettimeofday(&t2, NULL); |
| 1161 | |
| 1162 | if (cnt < 0) { |
| 1163 | printf("writev failed: %s\n", strerror(-cnt)); |
| 1164 | goto out; |
| 1165 | } |
| 1166 | |
| 1167 | if (qflag) { |
| 1168 | goto out; |
| 1169 | } |
| 1170 | |
| 1171 | /* Finally, report back -- -C gives a parsable format */ |
| 1172 | t2 = tsub(t2, t1); |
| 1173 | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); |
| 1174 | out: |
| 1175 | qemu_iovec_destroy(&qiov); |
| 1176 | qemu_io_free(buf); |
| 1177 | return 0; |
| 1178 | } |
| 1179 | |
| 1180 | static void multiwrite_help(void) |
| 1181 | { |
| 1182 | printf( |
| 1183 | "\n" |
| 1184 | " writes a range of bytes from the given offset source from multiple buffers,\n" |
| 1185 | " in a batch of requests that may be merged by qemu\n" |
| 1186 | "\n" |
| 1187 | " Example:\n" |
| 1188 | " 'multiwrite 512 1k 1k ; 4k 1k'\n" |
| 1189 | " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n" |
| 1190 | "\n" |
| 1191 | " Writes into a segment of the currently open file, using a buffer\n" |
| 1192 | " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n" |
| 1193 | " by one for each request contained in the multiwrite command.\n" |
| 1194 | " -P, -- use different pattern to fill file\n" |
| 1195 | " -C, -- report statistics in a machine parsable format\n" |
| 1196 | " -q, -- quiet mode, do not show I/O statistics\n" |
| 1197 | "\n"); |
| 1198 | } |
| 1199 | |
| 1200 | static int multiwrite_f(BlockDriverState *bs, int argc, char **argv); |
| 1201 | |
| 1202 | static const cmdinfo_t multiwrite_cmd = { |
| 1203 | .name = "multiwrite", |
| 1204 | .cfunc = multiwrite_f, |
| 1205 | .argmin = 2, |
| 1206 | .argmax = -1, |
| 1207 | .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]", |
| 1208 | .oneline = "issues multiple write requests at once", |
| 1209 | .help = multiwrite_help, |
| 1210 | }; |
| 1211 | |
| 1212 | static int multiwrite_f(BlockDriverState *bs, int argc, char **argv) |
| 1213 | { |
| 1214 | struct timeval t1, t2; |
| 1215 | int Cflag = 0, qflag = 0; |
| 1216 | int c, cnt; |
| 1217 | char **buf; |
| 1218 | int64_t offset, first_offset = 0; |
| 1219 | /* Some compilers get confused and warn if this is not initialized. */ |
| 1220 | int total = 0; |
| 1221 | int nr_iov; |
| 1222 | int nr_reqs; |
| 1223 | int pattern = 0xcd; |
| 1224 | QEMUIOVector *qiovs; |
| 1225 | int i; |
| 1226 | BlockRequest *reqs; |
| 1227 | |
| 1228 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
| 1229 | switch (c) { |
| 1230 | case 'C': |
| 1231 | Cflag = 1; |
| 1232 | break; |
| 1233 | case 'q': |
| 1234 | qflag = 1; |
| 1235 | break; |
| 1236 | case 'P': |
| 1237 | pattern = parse_pattern(optarg); |
| 1238 | if (pattern < 0) { |
| 1239 | return 0; |
| 1240 | } |
| 1241 | break; |
| 1242 | default: |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 1243 | return qemuio_command_usage(&writev_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1244 | } |
| 1245 | } |
| 1246 | |
| 1247 | if (optind > argc - 2) { |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 1248 | return qemuio_command_usage(&writev_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1249 | } |
| 1250 | |
| 1251 | nr_reqs = 1; |
| 1252 | for (i = optind; i < argc; i++) { |
| 1253 | if (!strcmp(argv[i], ";")) { |
| 1254 | nr_reqs++; |
| 1255 | } |
| 1256 | } |
| 1257 | |
Markus Armbruster | 02c4f26 | 2014-08-19 10:31:09 +0200 | [diff] [blame] | 1258 | reqs = g_new0(BlockRequest, nr_reqs); |
| 1259 | buf = g_new0(char *, nr_reqs); |
| 1260 | qiovs = g_new(QEMUIOVector, nr_reqs); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1261 | |
| 1262 | for (i = 0; i < nr_reqs && optind < argc; i++) { |
| 1263 | int j; |
| 1264 | |
| 1265 | /* Read the offset of the request */ |
| 1266 | offset = cvtnum(argv[optind]); |
| 1267 | if (offset < 0) { |
| 1268 | printf("non-numeric offset argument -- %s\n", argv[optind]); |
| 1269 | goto out; |
| 1270 | } |
| 1271 | optind++; |
| 1272 | |
| 1273 | if (offset & 0x1ff) { |
| 1274 | printf("offset %lld is not sector aligned\n", |
| 1275 | (long long)offset); |
| 1276 | goto out; |
| 1277 | } |
| 1278 | |
| 1279 | if (i == 0) { |
| 1280 | first_offset = offset; |
| 1281 | } |
| 1282 | |
| 1283 | /* Read lengths for qiov entries */ |
| 1284 | for (j = optind; j < argc; j++) { |
| 1285 | if (!strcmp(argv[j], ";")) { |
| 1286 | break; |
| 1287 | } |
| 1288 | } |
| 1289 | |
| 1290 | nr_iov = j - optind; |
| 1291 | |
| 1292 | /* Build request */ |
| 1293 | buf[i] = create_iovec(bs, &qiovs[i], &argv[optind], nr_iov, pattern); |
| 1294 | if (buf[i] == NULL) { |
| 1295 | goto out; |
| 1296 | } |
| 1297 | |
| 1298 | reqs[i].qiov = &qiovs[i]; |
| 1299 | reqs[i].sector = offset >> 9; |
| 1300 | reqs[i].nb_sectors = reqs[i].qiov->size >> 9; |
| 1301 | |
| 1302 | optind = j + 1; |
| 1303 | |
| 1304 | pattern++; |
| 1305 | } |
| 1306 | |
| 1307 | /* If there were empty requests at the end, ignore them */ |
| 1308 | nr_reqs = i; |
| 1309 | |
| 1310 | gettimeofday(&t1, NULL); |
| 1311 | cnt = do_aio_multiwrite(bs, reqs, nr_reqs, &total); |
| 1312 | gettimeofday(&t2, NULL); |
| 1313 | |
| 1314 | if (cnt < 0) { |
| 1315 | printf("aio_multiwrite failed: %s\n", strerror(-cnt)); |
| 1316 | goto out; |
| 1317 | } |
| 1318 | |
| 1319 | if (qflag) { |
| 1320 | goto out; |
| 1321 | } |
| 1322 | |
| 1323 | /* Finally, report back -- -C gives a parsable format */ |
| 1324 | t2 = tsub(t2, t1); |
| 1325 | print_report("wrote", &t2, first_offset, total, total, cnt, Cflag); |
| 1326 | out: |
| 1327 | for (i = 0; i < nr_reqs; i++) { |
| 1328 | qemu_io_free(buf[i]); |
| 1329 | if (reqs[i].qiov != NULL) { |
| 1330 | qemu_iovec_destroy(&qiovs[i]); |
| 1331 | } |
| 1332 | } |
| 1333 | g_free(buf); |
| 1334 | g_free(reqs); |
| 1335 | g_free(qiovs); |
| 1336 | return 0; |
| 1337 | } |
| 1338 | |
| 1339 | struct aio_ctx { |
| 1340 | QEMUIOVector qiov; |
| 1341 | int64_t offset; |
| 1342 | char *buf; |
| 1343 | int qflag; |
| 1344 | int vflag; |
| 1345 | int Cflag; |
| 1346 | int Pflag; |
| 1347 | int pattern; |
| 1348 | struct timeval t1; |
| 1349 | }; |
| 1350 | |
| 1351 | static void aio_write_done(void *opaque, int ret) |
| 1352 | { |
| 1353 | struct aio_ctx *ctx = opaque; |
| 1354 | struct timeval t2; |
| 1355 | |
| 1356 | gettimeofday(&t2, NULL); |
| 1357 | |
| 1358 | |
| 1359 | if (ret < 0) { |
| 1360 | printf("aio_write failed: %s\n", strerror(-ret)); |
| 1361 | goto out; |
| 1362 | } |
| 1363 | |
| 1364 | if (ctx->qflag) { |
| 1365 | goto out; |
| 1366 | } |
| 1367 | |
| 1368 | /* Finally, report back -- -C gives a parsable format */ |
| 1369 | t2 = tsub(t2, ctx->t1); |
| 1370 | print_report("wrote", &t2, ctx->offset, ctx->qiov.size, |
| 1371 | ctx->qiov.size, 1, ctx->Cflag); |
| 1372 | out: |
| 1373 | qemu_io_free(ctx->buf); |
| 1374 | qemu_iovec_destroy(&ctx->qiov); |
| 1375 | g_free(ctx); |
| 1376 | } |
| 1377 | |
| 1378 | static void aio_read_done(void *opaque, int ret) |
| 1379 | { |
| 1380 | struct aio_ctx *ctx = opaque; |
| 1381 | struct timeval t2; |
| 1382 | |
| 1383 | gettimeofday(&t2, NULL); |
| 1384 | |
| 1385 | if (ret < 0) { |
| 1386 | printf("readv failed: %s\n", strerror(-ret)); |
| 1387 | goto out; |
| 1388 | } |
| 1389 | |
| 1390 | if (ctx->Pflag) { |
| 1391 | void *cmp_buf = g_malloc(ctx->qiov.size); |
| 1392 | |
| 1393 | memset(cmp_buf, ctx->pattern, ctx->qiov.size); |
| 1394 | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { |
| 1395 | printf("Pattern verification failed at offset %" |
| 1396 | PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size); |
| 1397 | } |
| 1398 | g_free(cmp_buf); |
| 1399 | } |
| 1400 | |
| 1401 | if (ctx->qflag) { |
| 1402 | goto out; |
| 1403 | } |
| 1404 | |
| 1405 | if (ctx->vflag) { |
| 1406 | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); |
| 1407 | } |
| 1408 | |
| 1409 | /* Finally, report back -- -C gives a parsable format */ |
| 1410 | t2 = tsub(t2, ctx->t1); |
| 1411 | print_report("read", &t2, ctx->offset, ctx->qiov.size, |
| 1412 | ctx->qiov.size, 1, ctx->Cflag); |
| 1413 | out: |
| 1414 | qemu_io_free(ctx->buf); |
| 1415 | qemu_iovec_destroy(&ctx->qiov); |
| 1416 | g_free(ctx); |
| 1417 | } |
| 1418 | |
| 1419 | static void aio_read_help(void) |
| 1420 | { |
| 1421 | printf( |
| 1422 | "\n" |
| 1423 | " asynchronously reads a range of bytes from the given offset\n" |
| 1424 | "\n" |
| 1425 | " Example:\n" |
| 1426 | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" |
| 1427 | "\n" |
| 1428 | " Reads a segment of the currently open file, optionally dumping it to the\n" |
| 1429 | " standard output stream (with -v option) for subsequent inspection.\n" |
| 1430 | " The read is performed asynchronously and the aio_flush command must be\n" |
| 1431 | " used to ensure all outstanding aio requests have been completed.\n" |
| 1432 | " -C, -- report statistics in a machine parsable format\n" |
| 1433 | " -P, -- use a pattern to verify read data\n" |
| 1434 | " -v, -- dump buffer to standard output\n" |
| 1435 | " -q, -- quiet mode, do not show I/O statistics\n" |
| 1436 | "\n"); |
| 1437 | } |
| 1438 | |
| 1439 | static int aio_read_f(BlockDriverState *bs, int argc, char **argv); |
| 1440 | |
| 1441 | static const cmdinfo_t aio_read_cmd = { |
| 1442 | .name = "aio_read", |
| 1443 | .cfunc = aio_read_f, |
| 1444 | .argmin = 2, |
| 1445 | .argmax = -1, |
| 1446 | .args = "[-Cqv] [-P pattern ] off len [len..]", |
| 1447 | .oneline = "asynchronously reads a number of bytes", |
| 1448 | .help = aio_read_help, |
| 1449 | }; |
| 1450 | |
| 1451 | static int aio_read_f(BlockDriverState *bs, int argc, char **argv) |
| 1452 | { |
| 1453 | int nr_iov, c; |
| 1454 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); |
| 1455 | |
| 1456 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
| 1457 | switch (c) { |
| 1458 | case 'C': |
| 1459 | ctx->Cflag = 1; |
| 1460 | break; |
| 1461 | case 'P': |
| 1462 | ctx->Pflag = 1; |
| 1463 | ctx->pattern = parse_pattern(optarg); |
| 1464 | if (ctx->pattern < 0) { |
| 1465 | g_free(ctx); |
| 1466 | return 0; |
| 1467 | } |
| 1468 | break; |
| 1469 | case 'q': |
| 1470 | ctx->qflag = 1; |
| 1471 | break; |
| 1472 | case 'v': |
| 1473 | ctx->vflag = 1; |
| 1474 | break; |
| 1475 | default: |
| 1476 | g_free(ctx); |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 1477 | return qemuio_command_usage(&aio_read_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1478 | } |
| 1479 | } |
| 1480 | |
| 1481 | if (optind > argc - 2) { |
| 1482 | g_free(ctx); |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 1483 | return qemuio_command_usage(&aio_read_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1484 | } |
| 1485 | |
| 1486 | ctx->offset = cvtnum(argv[optind]); |
| 1487 | if (ctx->offset < 0) { |
| 1488 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1489 | g_free(ctx); |
| 1490 | return 0; |
| 1491 | } |
| 1492 | optind++; |
| 1493 | |
| 1494 | if (ctx->offset & 0x1ff) { |
| 1495 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1496 | ctx->offset); |
| 1497 | g_free(ctx); |
| 1498 | return 0; |
| 1499 | } |
| 1500 | |
| 1501 | nr_iov = argc - optind; |
| 1502 | ctx->buf = create_iovec(bs, &ctx->qiov, &argv[optind], nr_iov, 0xab); |
| 1503 | if (ctx->buf == NULL) { |
| 1504 | g_free(ctx); |
| 1505 | return 0; |
| 1506 | } |
| 1507 | |
| 1508 | gettimeofday(&ctx->t1, NULL); |
| 1509 | bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov, |
| 1510 | ctx->qiov.size >> 9, aio_read_done, ctx); |
| 1511 | return 0; |
| 1512 | } |
| 1513 | |
| 1514 | static void aio_write_help(void) |
| 1515 | { |
| 1516 | printf( |
| 1517 | "\n" |
| 1518 | " asynchronously writes a range of bytes from the given offset source\n" |
| 1519 | " from multiple buffers\n" |
| 1520 | "\n" |
| 1521 | " Example:\n" |
| 1522 | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" |
| 1523 | "\n" |
| 1524 | " Writes into a segment of the currently open file, using a buffer\n" |
| 1525 | " filled with a set pattern (0xcdcdcdcd).\n" |
| 1526 | " The write is performed asynchronously and the aio_flush command must be\n" |
| 1527 | " used to ensure all outstanding aio requests have been completed.\n" |
| 1528 | " -P, -- use different pattern to fill file\n" |
| 1529 | " -C, -- report statistics in a machine parsable format\n" |
| 1530 | " -q, -- quiet mode, do not show I/O statistics\n" |
| 1531 | "\n"); |
| 1532 | } |
| 1533 | |
| 1534 | static int aio_write_f(BlockDriverState *bs, int argc, char **argv); |
| 1535 | |
| 1536 | static const cmdinfo_t aio_write_cmd = { |
| 1537 | .name = "aio_write", |
| 1538 | .cfunc = aio_write_f, |
| 1539 | .argmin = 2, |
| 1540 | .argmax = -1, |
| 1541 | .args = "[-Cq] [-P pattern ] off len [len..]", |
| 1542 | .oneline = "asynchronously writes a number of bytes", |
| 1543 | .help = aio_write_help, |
| 1544 | }; |
| 1545 | |
| 1546 | static int aio_write_f(BlockDriverState *bs, int argc, char **argv) |
| 1547 | { |
| 1548 | int nr_iov, c; |
| 1549 | int pattern = 0xcd; |
| 1550 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); |
| 1551 | |
| 1552 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
| 1553 | switch (c) { |
| 1554 | case 'C': |
| 1555 | ctx->Cflag = 1; |
| 1556 | break; |
| 1557 | case 'q': |
| 1558 | ctx->qflag = 1; |
| 1559 | break; |
| 1560 | case 'P': |
| 1561 | pattern = parse_pattern(optarg); |
| 1562 | if (pattern < 0) { |
| 1563 | g_free(ctx); |
| 1564 | return 0; |
| 1565 | } |
| 1566 | break; |
| 1567 | default: |
| 1568 | g_free(ctx); |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 1569 | return qemuio_command_usage(&aio_write_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1570 | } |
| 1571 | } |
| 1572 | |
| 1573 | if (optind > argc - 2) { |
| 1574 | g_free(ctx); |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 1575 | return qemuio_command_usage(&aio_write_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1576 | } |
| 1577 | |
| 1578 | ctx->offset = cvtnum(argv[optind]); |
| 1579 | if (ctx->offset < 0) { |
| 1580 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1581 | g_free(ctx); |
| 1582 | return 0; |
| 1583 | } |
| 1584 | optind++; |
| 1585 | |
| 1586 | if (ctx->offset & 0x1ff) { |
| 1587 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1588 | ctx->offset); |
| 1589 | g_free(ctx); |
| 1590 | return 0; |
| 1591 | } |
| 1592 | |
| 1593 | nr_iov = argc - optind; |
| 1594 | ctx->buf = create_iovec(bs, &ctx->qiov, &argv[optind], nr_iov, pattern); |
| 1595 | if (ctx->buf == NULL) { |
| 1596 | g_free(ctx); |
| 1597 | return 0; |
| 1598 | } |
| 1599 | |
| 1600 | gettimeofday(&ctx->t1, NULL); |
| 1601 | bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov, |
| 1602 | ctx->qiov.size >> 9, aio_write_done, ctx); |
| 1603 | return 0; |
| 1604 | } |
| 1605 | |
| 1606 | static int aio_flush_f(BlockDriverState *bs, int argc, char **argv) |
| 1607 | { |
| 1608 | bdrv_drain_all(); |
| 1609 | return 0; |
| 1610 | } |
| 1611 | |
| 1612 | static const cmdinfo_t aio_flush_cmd = { |
| 1613 | .name = "aio_flush", |
| 1614 | .cfunc = aio_flush_f, |
| 1615 | .oneline = "completes all outstanding aio requests" |
| 1616 | }; |
| 1617 | |
| 1618 | static int flush_f(BlockDriverState *bs, int argc, char **argv) |
| 1619 | { |
| 1620 | bdrv_flush(bs); |
| 1621 | return 0; |
| 1622 | } |
| 1623 | |
| 1624 | static const cmdinfo_t flush_cmd = { |
| 1625 | .name = "flush", |
| 1626 | .altname = "f", |
| 1627 | .cfunc = flush_f, |
| 1628 | .oneline = "flush all in-core file state to disk", |
| 1629 | }; |
| 1630 | |
| 1631 | static int truncate_f(BlockDriverState *bs, int argc, char **argv) |
| 1632 | { |
| 1633 | int64_t offset; |
| 1634 | int ret; |
| 1635 | |
| 1636 | offset = cvtnum(argv[1]); |
| 1637 | if (offset < 0) { |
| 1638 | printf("non-numeric truncate argument -- %s\n", argv[1]); |
| 1639 | return 0; |
| 1640 | } |
| 1641 | |
| 1642 | ret = bdrv_truncate(bs, offset); |
| 1643 | if (ret < 0) { |
| 1644 | printf("truncate: %s\n", strerror(-ret)); |
| 1645 | return 0; |
| 1646 | } |
| 1647 | |
| 1648 | return 0; |
| 1649 | } |
| 1650 | |
| 1651 | static const cmdinfo_t truncate_cmd = { |
| 1652 | .name = "truncate", |
| 1653 | .altname = "t", |
| 1654 | .cfunc = truncate_f, |
| 1655 | .argmin = 1, |
| 1656 | .argmax = 1, |
| 1657 | .args = "off", |
| 1658 | .oneline = "truncates the current file at the given offset", |
| 1659 | }; |
| 1660 | |
| 1661 | static int length_f(BlockDriverState *bs, int argc, char **argv) |
| 1662 | { |
| 1663 | int64_t size; |
| 1664 | char s1[64]; |
| 1665 | |
| 1666 | size = bdrv_getlength(bs); |
| 1667 | if (size < 0) { |
| 1668 | printf("getlength: %s\n", strerror(-size)); |
| 1669 | return 0; |
| 1670 | } |
| 1671 | |
| 1672 | cvtstr(size, s1, sizeof(s1)); |
| 1673 | printf("%s\n", s1); |
| 1674 | return 0; |
| 1675 | } |
| 1676 | |
| 1677 | |
| 1678 | static const cmdinfo_t length_cmd = { |
| 1679 | .name = "length", |
| 1680 | .altname = "l", |
| 1681 | .cfunc = length_f, |
| 1682 | .oneline = "gets the length of the current file", |
| 1683 | }; |
| 1684 | |
| 1685 | |
| 1686 | static int info_f(BlockDriverState *bs, int argc, char **argv) |
| 1687 | { |
| 1688 | BlockDriverInfo bdi; |
Max Reitz | a8d8ecb | 2013-10-09 10:46:17 +0200 | [diff] [blame] | 1689 | ImageInfoSpecific *spec_info; |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1690 | char s1[64], s2[64]; |
| 1691 | int ret; |
| 1692 | |
| 1693 | if (bs->drv && bs->drv->format_name) { |
| 1694 | printf("format name: %s\n", bs->drv->format_name); |
| 1695 | } |
| 1696 | if (bs->drv && bs->drv->protocol_name) { |
| 1697 | printf("format name: %s\n", bs->drv->protocol_name); |
| 1698 | } |
| 1699 | |
| 1700 | ret = bdrv_get_info(bs, &bdi); |
| 1701 | if (ret) { |
| 1702 | return 0; |
| 1703 | } |
| 1704 | |
| 1705 | cvtstr(bdi.cluster_size, s1, sizeof(s1)); |
| 1706 | cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); |
| 1707 | |
| 1708 | printf("cluster size: %s\n", s1); |
| 1709 | printf("vm state offset: %s\n", s2); |
| 1710 | |
Max Reitz | a8d8ecb | 2013-10-09 10:46:17 +0200 | [diff] [blame] | 1711 | spec_info = bdrv_get_specific_info(bs); |
| 1712 | if (spec_info) { |
| 1713 | printf("Format specific information:\n"); |
| 1714 | bdrv_image_info_specific_dump(fprintf, stdout, spec_info); |
| 1715 | qapi_free_ImageInfoSpecific(spec_info); |
| 1716 | } |
| 1717 | |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1718 | return 0; |
| 1719 | } |
| 1720 | |
| 1721 | |
| 1722 | |
| 1723 | static const cmdinfo_t info_cmd = { |
| 1724 | .name = "info", |
| 1725 | .altname = "i", |
| 1726 | .cfunc = info_f, |
| 1727 | .oneline = "prints information about the current file", |
| 1728 | }; |
| 1729 | |
| 1730 | static void discard_help(void) |
| 1731 | { |
| 1732 | printf( |
| 1733 | "\n" |
| 1734 | " discards a range of bytes from the given offset\n" |
| 1735 | "\n" |
| 1736 | " Example:\n" |
| 1737 | " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" |
| 1738 | "\n" |
| 1739 | " Discards a segment of the currently open file.\n" |
| 1740 | " -C, -- report statistics in a machine parsable format\n" |
| 1741 | " -q, -- quiet mode, do not show I/O statistics\n" |
| 1742 | "\n"); |
| 1743 | } |
| 1744 | |
| 1745 | static int discard_f(BlockDriverState *bs, int argc, char **argv); |
| 1746 | |
| 1747 | static const cmdinfo_t discard_cmd = { |
| 1748 | .name = "discard", |
| 1749 | .altname = "d", |
| 1750 | .cfunc = discard_f, |
| 1751 | .argmin = 2, |
| 1752 | .argmax = -1, |
| 1753 | .args = "[-Cq] off len", |
| 1754 | .oneline = "discards a number of bytes at a specified offset", |
| 1755 | .help = discard_help, |
| 1756 | }; |
| 1757 | |
| 1758 | static int discard_f(BlockDriverState *bs, int argc, char **argv) |
| 1759 | { |
| 1760 | struct timeval t1, t2; |
| 1761 | int Cflag = 0, qflag = 0; |
| 1762 | int c, ret; |
| 1763 | int64_t offset; |
| 1764 | int count; |
| 1765 | |
| 1766 | while ((c = getopt(argc, argv, "Cq")) != EOF) { |
| 1767 | switch (c) { |
| 1768 | case 'C': |
| 1769 | Cflag = 1; |
| 1770 | break; |
| 1771 | case 'q': |
| 1772 | qflag = 1; |
| 1773 | break; |
| 1774 | default: |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 1775 | return qemuio_command_usage(&discard_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1776 | } |
| 1777 | } |
| 1778 | |
| 1779 | if (optind != argc - 2) { |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 1780 | return qemuio_command_usage(&discard_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1781 | } |
| 1782 | |
| 1783 | offset = cvtnum(argv[optind]); |
| 1784 | if (offset < 0) { |
| 1785 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1786 | return 0; |
| 1787 | } |
| 1788 | |
| 1789 | optind++; |
| 1790 | count = cvtnum(argv[optind]); |
| 1791 | if (count < 0) { |
| 1792 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1793 | return 0; |
| 1794 | } |
| 1795 | |
| 1796 | gettimeofday(&t1, NULL); |
| 1797 | ret = bdrv_discard(bs, offset >> BDRV_SECTOR_BITS, |
| 1798 | count >> BDRV_SECTOR_BITS); |
| 1799 | gettimeofday(&t2, NULL); |
| 1800 | |
| 1801 | if (ret < 0) { |
| 1802 | printf("discard failed: %s\n", strerror(-ret)); |
| 1803 | goto out; |
| 1804 | } |
| 1805 | |
| 1806 | /* Finally, report back -- -C gives a parsable format */ |
| 1807 | if (!qflag) { |
| 1808 | t2 = tsub(t2, t1); |
| 1809 | print_report("discard", &t2, offset, count, count, 1, Cflag); |
| 1810 | } |
| 1811 | |
| 1812 | out: |
| 1813 | return 0; |
| 1814 | } |
| 1815 | |
| 1816 | static int alloc_f(BlockDriverState *bs, int argc, char **argv) |
| 1817 | { |
| 1818 | int64_t offset, sector_num; |
| 1819 | int nb_sectors, remaining; |
| 1820 | char s1[64]; |
| 1821 | int num, sum_alloc; |
| 1822 | int ret; |
| 1823 | |
| 1824 | offset = cvtnum(argv[1]); |
| 1825 | if (offset < 0) { |
| 1826 | printf("non-numeric offset argument -- %s\n", argv[1]); |
| 1827 | return 0; |
| 1828 | } else if (offset & 0x1ff) { |
| 1829 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1830 | offset); |
| 1831 | return 0; |
| 1832 | } |
| 1833 | |
| 1834 | if (argc == 3) { |
| 1835 | nb_sectors = cvtnum(argv[2]); |
| 1836 | if (nb_sectors < 0) { |
| 1837 | printf("non-numeric length argument -- %s\n", argv[2]); |
| 1838 | return 0; |
| 1839 | } |
| 1840 | } else { |
| 1841 | nb_sectors = 1; |
| 1842 | } |
| 1843 | |
| 1844 | remaining = nb_sectors; |
| 1845 | sum_alloc = 0; |
| 1846 | sector_num = offset >> 9; |
| 1847 | while (remaining) { |
| 1848 | ret = bdrv_is_allocated(bs, sector_num, remaining, &num); |
Paolo Bonzini | d663640 | 2013-09-04 19:00:25 +0200 | [diff] [blame] | 1849 | if (ret < 0) { |
| 1850 | printf("is_allocated failed: %s\n", strerror(-ret)); |
| 1851 | return 0; |
| 1852 | } |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1853 | sector_num += num; |
| 1854 | remaining -= num; |
| 1855 | if (ret) { |
| 1856 | sum_alloc += num; |
| 1857 | } |
| 1858 | if (num == 0) { |
| 1859 | nb_sectors -= remaining; |
| 1860 | remaining = 0; |
| 1861 | } |
| 1862 | } |
| 1863 | |
| 1864 | cvtstr(offset, s1, sizeof(s1)); |
| 1865 | |
| 1866 | printf("%d/%d sectors allocated at offset %s\n", |
| 1867 | sum_alloc, nb_sectors, s1); |
| 1868 | return 0; |
| 1869 | } |
| 1870 | |
| 1871 | static const cmdinfo_t alloc_cmd = { |
| 1872 | .name = "alloc", |
| 1873 | .altname = "a", |
| 1874 | .argmin = 1, |
| 1875 | .argmax = 2, |
| 1876 | .cfunc = alloc_f, |
| 1877 | .args = "off [sectors]", |
| 1878 | .oneline = "checks if a sector is present in the file", |
| 1879 | }; |
| 1880 | |
| 1881 | |
| 1882 | static int map_is_allocated(BlockDriverState *bs, int64_t sector_num, |
| 1883 | int64_t nb_sectors, int64_t *pnum) |
| 1884 | { |
| 1885 | int num, num_checked; |
| 1886 | int ret, firstret; |
| 1887 | |
| 1888 | num_checked = MIN(nb_sectors, INT_MAX); |
| 1889 | ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); |
| 1890 | if (ret < 0) { |
| 1891 | return ret; |
| 1892 | } |
| 1893 | |
| 1894 | firstret = ret; |
| 1895 | *pnum = num; |
| 1896 | |
| 1897 | while (nb_sectors > 0 && ret == firstret) { |
| 1898 | sector_num += num; |
| 1899 | nb_sectors -= num; |
| 1900 | |
| 1901 | num_checked = MIN(nb_sectors, INT_MAX); |
| 1902 | ret = bdrv_is_allocated(bs, sector_num, num_checked, &num); |
Max Reitz | 4b25bbc | 2014-10-22 17:00:16 +0200 | [diff] [blame] | 1903 | if (ret == firstret && num) { |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1904 | *pnum += num; |
| 1905 | } else { |
| 1906 | break; |
| 1907 | } |
| 1908 | } |
| 1909 | |
| 1910 | return firstret; |
| 1911 | } |
| 1912 | |
| 1913 | static int map_f(BlockDriverState *bs, int argc, char **argv) |
| 1914 | { |
| 1915 | int64_t offset; |
| 1916 | int64_t nb_sectors; |
| 1917 | char s1[64]; |
| 1918 | int64_t num; |
| 1919 | int ret; |
| 1920 | const char *retstr; |
| 1921 | |
| 1922 | offset = 0; |
| 1923 | nb_sectors = bs->total_sectors; |
| 1924 | |
| 1925 | do { |
| 1926 | ret = map_is_allocated(bs, offset, nb_sectors, &num); |
| 1927 | if (ret < 0) { |
| 1928 | error_report("Failed to get allocation status: %s", strerror(-ret)); |
| 1929 | return 0; |
Max Reitz | 4b25bbc | 2014-10-22 17:00:16 +0200 | [diff] [blame] | 1930 | } else if (!num) { |
| 1931 | error_report("Unexpected end of image"); |
| 1932 | return 0; |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1933 | } |
| 1934 | |
| 1935 | retstr = ret ? " allocated" : "not allocated"; |
| 1936 | cvtstr(offset << 9ULL, s1, sizeof(s1)); |
| 1937 | printf("[% 24" PRId64 "] % 8" PRId64 "/% 8" PRId64 " sectors %s " |
| 1938 | "at offset %s (%d)\n", |
| 1939 | offset << 9ULL, num, nb_sectors, retstr, s1, ret); |
| 1940 | |
| 1941 | offset += num; |
| 1942 | nb_sectors -= num; |
| 1943 | } while (offset < bs->total_sectors); |
| 1944 | |
| 1945 | return 0; |
| 1946 | } |
| 1947 | |
| 1948 | static const cmdinfo_t map_cmd = { |
| 1949 | .name = "map", |
| 1950 | .argmin = 0, |
| 1951 | .argmax = 0, |
| 1952 | .cfunc = map_f, |
| 1953 | .args = "", |
| 1954 | .oneline = "prints the allocated areas of a file", |
| 1955 | }; |
| 1956 | |
| 1957 | static int break_f(BlockDriverState *bs, int argc, char **argv) |
| 1958 | { |
| 1959 | int ret; |
| 1960 | |
| 1961 | ret = bdrv_debug_breakpoint(bs, argv[1], argv[2]); |
| 1962 | if (ret < 0) { |
| 1963 | printf("Could not set breakpoint: %s\n", strerror(-ret)); |
| 1964 | } |
| 1965 | |
| 1966 | return 0; |
| 1967 | } |
| 1968 | |
Fam Zheng | 4cc70e9 | 2013-11-20 10:01:54 +0800 | [diff] [blame] | 1969 | static int remove_break_f(BlockDriverState *bs, int argc, char **argv) |
| 1970 | { |
| 1971 | int ret; |
| 1972 | |
| 1973 | ret = bdrv_debug_remove_breakpoint(bs, argv[1]); |
| 1974 | if (ret < 0) { |
| 1975 | printf("Could not remove breakpoint %s: %s\n", argv[1], strerror(-ret)); |
| 1976 | } |
| 1977 | |
| 1978 | return 0; |
| 1979 | } |
| 1980 | |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 1981 | static const cmdinfo_t break_cmd = { |
| 1982 | .name = "break", |
| 1983 | .argmin = 2, |
| 1984 | .argmax = 2, |
| 1985 | .cfunc = break_f, |
| 1986 | .args = "event tag", |
| 1987 | .oneline = "sets a breakpoint on event and tags the stopped " |
| 1988 | "request as tag", |
| 1989 | }; |
| 1990 | |
Fam Zheng | 4cc70e9 | 2013-11-20 10:01:54 +0800 | [diff] [blame] | 1991 | static const cmdinfo_t remove_break_cmd = { |
| 1992 | .name = "remove_break", |
| 1993 | .argmin = 1, |
| 1994 | .argmax = 1, |
| 1995 | .cfunc = remove_break_f, |
| 1996 | .args = "tag", |
| 1997 | .oneline = "remove a breakpoint by tag", |
| 1998 | }; |
| 1999 | |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 2000 | static int resume_f(BlockDriverState *bs, int argc, char **argv) |
| 2001 | { |
| 2002 | int ret; |
| 2003 | |
| 2004 | ret = bdrv_debug_resume(bs, argv[1]); |
| 2005 | if (ret < 0) { |
| 2006 | printf("Could not resume request: %s\n", strerror(-ret)); |
| 2007 | } |
| 2008 | |
| 2009 | return 0; |
| 2010 | } |
| 2011 | |
| 2012 | static const cmdinfo_t resume_cmd = { |
| 2013 | .name = "resume", |
| 2014 | .argmin = 1, |
| 2015 | .argmax = 1, |
| 2016 | .cfunc = resume_f, |
| 2017 | .args = "tag", |
| 2018 | .oneline = "resumes the request tagged as tag", |
| 2019 | }; |
| 2020 | |
| 2021 | static int wait_break_f(BlockDriverState *bs, int argc, char **argv) |
| 2022 | { |
| 2023 | while (!bdrv_debug_is_suspended(bs, argv[1])) { |
Paolo Bonzini | b47ec2c | 2014-07-07 15:18:01 +0200 | [diff] [blame] | 2024 | aio_poll(bdrv_get_aio_context(bs), true); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 2025 | } |
| 2026 | |
| 2027 | return 0; |
| 2028 | } |
| 2029 | |
| 2030 | static const cmdinfo_t wait_break_cmd = { |
| 2031 | .name = "wait_break", |
| 2032 | .argmin = 1, |
| 2033 | .argmax = 1, |
| 2034 | .cfunc = wait_break_f, |
| 2035 | .args = "tag", |
| 2036 | .oneline = "waits for the suspension of a request", |
| 2037 | }; |
| 2038 | |
| 2039 | static int abort_f(BlockDriverState *bs, int argc, char **argv) |
| 2040 | { |
| 2041 | abort(); |
| 2042 | } |
| 2043 | |
| 2044 | static const cmdinfo_t abort_cmd = { |
| 2045 | .name = "abort", |
| 2046 | .cfunc = abort_f, |
| 2047 | .flags = CMD_NOFILE_OK, |
| 2048 | .oneline = "simulate a program crash using abort(3)", |
| 2049 | }; |
| 2050 | |
Kevin Wolf | cd33d02 | 2014-01-15 15:39:10 +0100 | [diff] [blame] | 2051 | static void sleep_cb(void *opaque) |
| 2052 | { |
| 2053 | bool *expired = opaque; |
| 2054 | *expired = true; |
| 2055 | } |
| 2056 | |
| 2057 | static int sleep_f(BlockDriverState *bs, int argc, char **argv) |
| 2058 | { |
| 2059 | char *endptr; |
| 2060 | long ms; |
| 2061 | struct QEMUTimer *timer; |
| 2062 | bool expired = false; |
| 2063 | |
| 2064 | ms = strtol(argv[1], &endptr, 0); |
| 2065 | if (ms < 0 || *endptr != '\0') { |
| 2066 | printf("%s is not a valid number\n", argv[1]); |
| 2067 | return 0; |
| 2068 | } |
| 2069 | |
| 2070 | timer = timer_new_ns(QEMU_CLOCK_HOST, sleep_cb, &expired); |
| 2071 | timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_HOST) + SCALE_MS * ms); |
| 2072 | |
| 2073 | while (!expired) { |
| 2074 | main_loop_wait(false); |
| 2075 | } |
| 2076 | |
| 2077 | timer_free(timer); |
| 2078 | |
| 2079 | return 0; |
| 2080 | } |
| 2081 | |
| 2082 | static const cmdinfo_t sleep_cmd = { |
| 2083 | .name = "sleep", |
| 2084 | .argmin = 1, |
| 2085 | .argmax = 1, |
| 2086 | .cfunc = sleep_f, |
| 2087 | .flags = CMD_NOFILE_OK, |
| 2088 | .oneline = "waits for the given value in milliseconds", |
| 2089 | }; |
| 2090 | |
Kevin Wolf | f18a834 | 2013-06-05 14:19:33 +0200 | [diff] [blame] | 2091 | static void help_oneline(const char *cmd, const cmdinfo_t *ct) |
| 2092 | { |
| 2093 | if (cmd) { |
| 2094 | printf("%s ", cmd); |
| 2095 | } else { |
| 2096 | printf("%s ", ct->name); |
| 2097 | if (ct->altname) { |
| 2098 | printf("(or %s) ", ct->altname); |
| 2099 | } |
| 2100 | } |
| 2101 | |
| 2102 | if (ct->args) { |
| 2103 | printf("%s ", ct->args); |
| 2104 | } |
| 2105 | printf("-- %s\n", ct->oneline); |
| 2106 | } |
| 2107 | |
| 2108 | static void help_onecmd(const char *cmd, const cmdinfo_t *ct) |
| 2109 | { |
| 2110 | help_oneline(cmd, ct); |
| 2111 | if (ct->help) { |
| 2112 | ct->help(); |
| 2113 | } |
| 2114 | } |
| 2115 | |
| 2116 | static void help_all(void) |
| 2117 | { |
| 2118 | const cmdinfo_t *ct; |
| 2119 | |
| 2120 | for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) { |
| 2121 | help_oneline(ct->name, ct); |
| 2122 | } |
| 2123 | printf("\nUse 'help commandname' for extended help.\n"); |
| 2124 | } |
| 2125 | |
| 2126 | static int help_f(BlockDriverState *bs, int argc, char **argv) |
| 2127 | { |
| 2128 | const cmdinfo_t *ct; |
| 2129 | |
| 2130 | if (argc == 1) { |
| 2131 | help_all(); |
| 2132 | return 0; |
| 2133 | } |
| 2134 | |
| 2135 | ct = find_command(argv[1]); |
| 2136 | if (ct == NULL) { |
| 2137 | printf("command %s not found\n", argv[1]); |
| 2138 | return 0; |
| 2139 | } |
| 2140 | |
| 2141 | help_onecmd(argv[1], ct); |
| 2142 | return 0; |
| 2143 | } |
| 2144 | |
| 2145 | static const cmdinfo_t help_cmd = { |
| 2146 | .name = "help", |
| 2147 | .altname = "?", |
| 2148 | .cfunc = help_f, |
| 2149 | .argmin = 0, |
| 2150 | .argmax = 1, |
| 2151 | .flags = CMD_FLAG_GLOBAL, |
| 2152 | .args = "[command]", |
| 2153 | .oneline = "help for one or all commands", |
| 2154 | }; |
| 2155 | |
Kevin Wolf | 3d21994 | 2013-06-05 14:19:39 +0200 | [diff] [blame] | 2156 | bool qemuio_command(BlockDriverState *bs, const char *cmd) |
Kevin Wolf | dd58329 | 2013-06-05 14:19:32 +0200 | [diff] [blame] | 2157 | { |
| 2158 | char *input; |
| 2159 | const cmdinfo_t *ct; |
| 2160 | char **v; |
| 2161 | int c; |
| 2162 | bool done = false; |
| 2163 | |
| 2164 | input = g_strdup(cmd); |
| 2165 | v = breakline(input, &c); |
| 2166 | if (c) { |
| 2167 | ct = find_command(v[0]); |
| 2168 | if (ct) { |
Kevin Wolf | 3d21994 | 2013-06-05 14:19:39 +0200 | [diff] [blame] | 2169 | done = command(bs, ct, c, v); |
Kevin Wolf | dd58329 | 2013-06-05 14:19:32 +0200 | [diff] [blame] | 2170 | } else { |
| 2171 | fprintf(stderr, "command \"%s\" not found\n", v[0]); |
| 2172 | } |
| 2173 | } |
| 2174 | g_free(input); |
| 2175 | g_free(v); |
| 2176 | |
| 2177 | return done; |
| 2178 | } |
| 2179 | |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 2180 | static void __attribute((constructor)) init_qemuio_commands(void) |
| 2181 | { |
| 2182 | /* initialize commands */ |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 2183 | qemuio_add_command(&help_cmd); |
| 2184 | qemuio_add_command(&read_cmd); |
| 2185 | qemuio_add_command(&readv_cmd); |
| 2186 | qemuio_add_command(&write_cmd); |
| 2187 | qemuio_add_command(&writev_cmd); |
| 2188 | qemuio_add_command(&multiwrite_cmd); |
| 2189 | qemuio_add_command(&aio_read_cmd); |
| 2190 | qemuio_add_command(&aio_write_cmd); |
| 2191 | qemuio_add_command(&aio_flush_cmd); |
| 2192 | qemuio_add_command(&flush_cmd); |
| 2193 | qemuio_add_command(&truncate_cmd); |
| 2194 | qemuio_add_command(&length_cmd); |
| 2195 | qemuio_add_command(&info_cmd); |
| 2196 | qemuio_add_command(&discard_cmd); |
| 2197 | qemuio_add_command(&alloc_cmd); |
| 2198 | qemuio_add_command(&map_cmd); |
| 2199 | qemuio_add_command(&break_cmd); |
Fam Zheng | 4cc70e9 | 2013-11-20 10:01:54 +0800 | [diff] [blame] | 2200 | qemuio_add_command(&remove_break_cmd); |
Kevin Wolf | c2cdf5c | 2013-06-05 14:19:36 +0200 | [diff] [blame] | 2201 | qemuio_add_command(&resume_cmd); |
| 2202 | qemuio_add_command(&wait_break_cmd); |
| 2203 | qemuio_add_command(&abort_cmd); |
Kevin Wolf | cd33d02 | 2014-01-15 15:39:10 +0100 | [diff] [blame] | 2204 | qemuio_add_command(&sleep_cmd); |
Kevin Wolf | 797ac58 | 2013-06-05 14:19:31 +0200 | [diff] [blame] | 2205 | } |