aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [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 | */ |
Stefan Weil | c32d766 | 2009-08-31 22:16:16 +0200 | [diff] [blame] | 10 | #include <sys/time.h> |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 11 | #include <sys/types.h> |
| 12 | #include <stdarg.h> |
| 13 | #include <stdio.h> |
| 14 | #include <getopt.h> |
Stefan Weil | c32d766 | 2009-08-31 22:16:16 +0200 | [diff] [blame] | 15 | #include <libgen.h> |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 16 | |
| 17 | #include "qemu-common.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 18 | #include "qemu/main-loop.h" |
Paolo Bonzini | 737e150 | 2012-12-17 18:19:44 +0100 | [diff] [blame] | 19 | #include "block/block_int.h" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 20 | #include "cmd.h" |
Stefan Hajnoczi | d7bb72c | 2012-03-12 16:36:07 +0000 | [diff] [blame] | 21 | #include "trace/control.h" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 22 | |
| 23 | #define VERSION "0.0.1" |
| 24 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 25 | #define CMD_NOFILE_OK 0x01 |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 26 | |
| 27 | char *progname; |
| 28 | static BlockDriverState *bs; |
| 29 | |
| 30 | static int misalign; |
| 31 | |
| 32 | /* |
Christoph Hellwig | cf070d7 | 2009-07-20 01:19:25 +0200 | [diff] [blame] | 33 | * Parse the pattern argument to various sub-commands. |
| 34 | * |
| 35 | * Because the pattern is used as an argument to memset it must evaluate |
| 36 | * to an unsigned integer that fits into a single byte. |
| 37 | */ |
| 38 | static int parse_pattern(const char *arg) |
| 39 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 40 | char *endptr = NULL; |
| 41 | long pattern; |
Christoph Hellwig | cf070d7 | 2009-07-20 01:19:25 +0200 | [diff] [blame] | 42 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 43 | pattern = strtol(arg, &endptr, 0); |
| 44 | if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { |
| 45 | printf("%s is not a valid pattern byte\n", arg); |
| 46 | return -1; |
| 47 | } |
Christoph Hellwig | cf070d7 | 2009-07-20 01:19:25 +0200 | [diff] [blame] | 48 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 49 | return pattern; |
Christoph Hellwig | cf070d7 | 2009-07-20 01:19:25 +0200 | [diff] [blame] | 50 | } |
| 51 | |
| 52 | /* |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 53 | * Memory allocation helpers. |
| 54 | * |
| 55 | * Make sure memory is aligned by default, or purposefully misaligned if |
| 56 | * that is specified on the command line. |
| 57 | */ |
| 58 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 59 | #define MISALIGN_OFFSET 16 |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 60 | static void *qemu_io_alloc(size_t len, int pattern) |
| 61 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 62 | void *buf; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 63 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 64 | if (misalign) { |
| 65 | len += MISALIGN_OFFSET; |
| 66 | } |
| 67 | buf = qemu_blockalign(bs, len); |
| 68 | memset(buf, pattern, len); |
| 69 | if (misalign) { |
| 70 | buf += MISALIGN_OFFSET; |
| 71 | } |
| 72 | return buf; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | static void qemu_io_free(void *p) |
| 76 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 77 | if (misalign) { |
| 78 | p -= MISALIGN_OFFSET; |
| 79 | } |
| 80 | qemu_vfree(p); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 81 | } |
| 82 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 83 | static void dump_buffer(const void *buffer, int64_t offset, int len) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 84 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 85 | int i, j; |
| 86 | const uint8_t *p; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 87 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 88 | for (i = 0, p = buffer; i < len; i += 16) { |
| 89 | const uint8_t *s = p; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 90 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 91 | printf("%08" PRIx64 ": ", offset + i); |
| 92 | for (j = 0; j < 16 && i + j < len; j++, p++) { |
| 93 | printf("%02x ", *p); |
| 94 | } |
| 95 | printf(" "); |
| 96 | for (j = 0; j < 16 && i + j < len; j++, s++) { |
| 97 | if (isalnum(*s)) { |
| 98 | printf("%c", *s); |
| 99 | } else { |
| 100 | printf("."); |
| 101 | } |
| 102 | } |
| 103 | printf("\n"); |
| 104 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 105 | } |
| 106 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 107 | static void print_report(const char *op, struct timeval *t, int64_t offset, |
| 108 | int count, int total, int cnt, int Cflag) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 109 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 110 | char s1[64], s2[64], ts[64]; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 111 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 112 | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); |
| 113 | if (!Cflag) { |
| 114 | cvtstr((double)total, s1, sizeof(s1)); |
| 115 | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); |
| 116 | printf("%s %d/%d bytes at offset %" PRId64 "\n", |
| 117 | op, total, count, offset); |
| 118 | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", |
| 119 | s1, cnt, ts, s2, tdiv((double)cnt, *t)); |
| 120 | } else {/* bytes,ops,time,bytes/sec,ops/sec */ |
| 121 | printf("%d,%d,%s,%.3f,%.3f\n", |
| 122 | total, cnt, ts, |
| 123 | tdiv((double)total, *t), |
| 124 | tdiv((double)cnt, *t)); |
| 125 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 126 | } |
| 127 | |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 128 | /* |
| 129 | * Parse multiple length statements for vectored I/O, and construct an I/O |
| 130 | * vector matching it. |
| 131 | */ |
| 132 | static void * |
| 133 | create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern) |
| 134 | { |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 135 | size_t *sizes = g_new0(size_t, nr_iov); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 136 | size_t count = 0; |
| 137 | void *buf = NULL; |
| 138 | void *p; |
| 139 | int i; |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 140 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 141 | for (i = 0; i < nr_iov; i++) { |
| 142 | char *arg = argv[i]; |
| 143 | int64_t len; |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 144 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 145 | len = cvtnum(arg); |
| 146 | if (len < 0) { |
| 147 | printf("non-numeric length argument -- %s\n", arg); |
| 148 | goto fail; |
| 149 | } |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 150 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 151 | /* should be SIZE_T_MAX, but that doesn't exist */ |
| 152 | if (len > INT_MAX) { |
| 153 | printf("too large length argument -- %s\n", arg); |
| 154 | goto fail; |
| 155 | } |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 156 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 157 | if (len & 0x1ff) { |
| 158 | printf("length argument %" PRId64 |
| 159 | " is not sector aligned\n", len); |
| 160 | goto fail; |
| 161 | } |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 162 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 163 | sizes[i] = len; |
| 164 | count += len; |
| 165 | } |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 166 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 167 | qemu_iovec_init(qiov, nr_iov); |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 168 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 169 | buf = p = qemu_io_alloc(count, pattern); |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 170 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 171 | for (i = 0; i < nr_iov; i++) { |
| 172 | qemu_iovec_add(qiov, p, sizes[i]); |
| 173 | p += sizes[i]; |
| 174 | } |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 175 | |
Kevin Wolf | 40a0d7c | 2009-11-18 10:42:59 +0100 | [diff] [blame] | 176 | fail: |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 177 | g_free(sizes); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 178 | return buf; |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 179 | } |
| 180 | |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 181 | static int do_read(char *buf, int64_t offset, int count, int *total) |
| 182 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 183 | int ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 184 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 185 | ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
| 186 | if (ret < 0) { |
| 187 | return ret; |
| 188 | } |
| 189 | *total = count; |
| 190 | return 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 191 | } |
| 192 | |
| 193 | static int do_write(char *buf, int64_t offset, int count, int *total) |
| 194 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 195 | int ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 196 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 197 | ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
| 198 | if (ret < 0) { |
| 199 | return ret; |
| 200 | } |
| 201 | *total = count; |
| 202 | return 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 203 | } |
| 204 | |
| 205 | static int do_pread(char *buf, int64_t offset, int count, int *total) |
| 206 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 207 | *total = bdrv_pread(bs, offset, (uint8_t *)buf, count); |
| 208 | if (*total < 0) { |
| 209 | return *total; |
| 210 | } |
| 211 | return 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | static int do_pwrite(char *buf, int64_t offset, int count, int *total) |
| 215 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 216 | *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count); |
| 217 | if (*total < 0) { |
| 218 | return *total; |
| 219 | } |
| 220 | return 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 221 | } |
| 222 | |
Stefan Hajnoczi | 71b58b8 | 2012-02-07 13:27:29 +0000 | [diff] [blame] | 223 | typedef struct { |
| 224 | int64_t offset; |
| 225 | int count; |
| 226 | int *total; |
| 227 | int ret; |
| 228 | bool done; |
| 229 | } CoWriteZeroes; |
| 230 | |
| 231 | static void coroutine_fn co_write_zeroes_entry(void *opaque) |
| 232 | { |
| 233 | CoWriteZeroes *data = opaque; |
| 234 | |
| 235 | data->ret = bdrv_co_write_zeroes(bs, data->offset / BDRV_SECTOR_SIZE, |
| 236 | data->count / BDRV_SECTOR_SIZE); |
| 237 | data->done = true; |
| 238 | if (data->ret < 0) { |
| 239 | *data->total = data->ret; |
| 240 | return; |
| 241 | } |
| 242 | |
| 243 | *data->total = data->count; |
| 244 | } |
| 245 | |
| 246 | static int do_co_write_zeroes(int64_t offset, int count, int *total) |
| 247 | { |
| 248 | Coroutine *co; |
| 249 | CoWriteZeroes data = { |
| 250 | .offset = offset, |
| 251 | .count = count, |
| 252 | .total = total, |
| 253 | .done = false, |
| 254 | }; |
| 255 | |
| 256 | co = qemu_coroutine_create(co_write_zeroes_entry); |
| 257 | qemu_coroutine_enter(co, &data); |
| 258 | while (!data.done) { |
| 259 | qemu_aio_wait(); |
| 260 | } |
| 261 | if (data.ret < 0) { |
| 262 | return data.ret; |
| 263 | } else { |
| 264 | return 1; |
| 265 | } |
| 266 | } |
| 267 | |
Kevin Wolf | 791bfa3 | 2012-12-04 16:35:12 +0100 | [diff] [blame] | 268 | static int do_write_compressed(char *buf, int64_t offset, int count, int *total) |
| 269 | { |
| 270 | int ret; |
| 271 | |
| 272 | ret = bdrv_write_compressed(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
| 273 | if (ret < 0) { |
| 274 | return ret; |
| 275 | } |
| 276 | *total = count; |
| 277 | return 1; |
| 278 | } |
| 279 | |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 280 | static int do_load_vmstate(char *buf, int64_t offset, int count, int *total) |
| 281 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 282 | *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count); |
| 283 | if (*total < 0) { |
| 284 | return *total; |
| 285 | } |
| 286 | return 1; |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 287 | } |
| 288 | |
| 289 | static int do_save_vmstate(char *buf, int64_t offset, int count, int *total) |
| 290 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 291 | *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count); |
| 292 | if (*total < 0) { |
| 293 | return *total; |
| 294 | } |
| 295 | return 1; |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 296 | } |
| 297 | |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 298 | #define NOT_DONE 0x7fffffff |
| 299 | static void aio_rw_done(void *opaque, int ret) |
| 300 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 301 | *(int *)opaque = ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 302 | } |
| 303 | |
| 304 | static int do_aio_readv(QEMUIOVector *qiov, int64_t offset, int *total) |
| 305 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 306 | int async_ret = NOT_DONE; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 307 | |
Paolo Bonzini | ad54ae8 | 2011-11-30 09:12:30 +0100 | [diff] [blame] | 308 | bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9, |
| 309 | aio_rw_done, &async_ret); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 310 | while (async_ret == NOT_DONE) { |
Paolo Bonzini | a5a5238 | 2012-04-12 14:00:51 +0200 | [diff] [blame] | 311 | main_loop_wait(false); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 312 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 313 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 314 | *total = qiov->size; |
| 315 | return async_ret < 0 ? async_ret : 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 316 | } |
| 317 | |
| 318 | static int do_aio_writev(QEMUIOVector *qiov, int64_t offset, int *total) |
| 319 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 320 | int async_ret = NOT_DONE; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 321 | |
Paolo Bonzini | ad54ae8 | 2011-11-30 09:12:30 +0100 | [diff] [blame] | 322 | bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9, |
| 323 | aio_rw_done, &async_ret); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 324 | while (async_ret == NOT_DONE) { |
Paolo Bonzini | a5a5238 | 2012-04-12 14:00:51 +0200 | [diff] [blame] | 325 | main_loop_wait(false); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 326 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 327 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 328 | *total = qiov->size; |
| 329 | return async_ret < 0 ? async_ret : 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 330 | } |
| 331 | |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 332 | struct multiwrite_async_ret { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 333 | int num_done; |
| 334 | int error; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 335 | }; |
| 336 | |
| 337 | static void multiwrite_cb(void *opaque, int ret) |
| 338 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 339 | struct multiwrite_async_ret *async_ret = opaque; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 340 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 341 | async_ret->num_done++; |
| 342 | if (ret < 0) { |
| 343 | async_ret->error = ret; |
| 344 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 345 | } |
| 346 | |
| 347 | static int do_aio_multiwrite(BlockRequest* reqs, int num_reqs, int *total) |
| 348 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 349 | int i, ret; |
| 350 | struct multiwrite_async_ret async_ret = { |
| 351 | .num_done = 0, |
| 352 | .error = 0, |
| 353 | }; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 354 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 355 | *total = 0; |
| 356 | for (i = 0; i < num_reqs; i++) { |
| 357 | reqs[i].cb = multiwrite_cb; |
| 358 | reqs[i].opaque = &async_ret; |
| 359 | *total += reqs[i].qiov->size; |
| 360 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 361 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 362 | ret = bdrv_aio_multiwrite(bs, reqs, num_reqs); |
| 363 | if (ret < 0) { |
| 364 | return ret; |
| 365 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 366 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 367 | while (async_ret.num_done < num_reqs) { |
Paolo Bonzini | a5a5238 | 2012-04-12 14:00:51 +0200 | [diff] [blame] | 368 | main_loop_wait(false); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 369 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 370 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 371 | return async_ret.error < 0 ? async_ret.error : 1; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 372 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 373 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 374 | static void read_help(void) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 375 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 376 | printf( |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 377 | "\n" |
| 378 | " reads a range of bytes from the given offset\n" |
| 379 | "\n" |
| 380 | " Example:\n" |
| 381 | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" |
| 382 | "\n" |
| 383 | " Reads a segment of the currently open file, optionally dumping it to the\n" |
| 384 | " standard output stream (with -v option) for subsequent inspection.\n" |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 385 | " -b, -- read from the VM state rather than the virtual disk\n" |
Kevin Wolf | d9654a5 | 2009-04-23 15:11:13 +0200 | [diff] [blame] | 386 | " -C, -- report statistics in a machine parsable format\n" |
| 387 | " -l, -- length for pattern verification (only with -P)\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 388 | " -p, -- use bdrv_pread to read the file\n" |
aliguori | c48101a | 2009-04-18 15:36:23 +0000 | [diff] [blame] | 389 | " -P, -- use a pattern to verify read data\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 390 | " -q, -- quiet mode, do not show I/O statistics\n" |
Kevin Wolf | d9654a5 | 2009-04-23 15:11:13 +0200 | [diff] [blame] | 391 | " -s, -- start offset for pattern verification (only with -P)\n" |
| 392 | " -v, -- dump buffer to standard output\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 393 | "\n"); |
| 394 | } |
| 395 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 396 | static int read_f(int argc, char **argv); |
| 397 | |
| 398 | static const cmdinfo_t read_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 399 | .name = "read", |
| 400 | .altname = "r", |
| 401 | .cfunc = read_f, |
| 402 | .argmin = 2, |
| 403 | .argmax = -1, |
| 404 | .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len", |
| 405 | .oneline = "reads a number of bytes at a specified offset", |
| 406 | .help = read_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 407 | }; |
| 408 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 409 | static int read_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 410 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 411 | struct timeval t1, t2; |
| 412 | int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; |
| 413 | int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; |
| 414 | int c, cnt; |
| 415 | char *buf; |
| 416 | int64_t offset; |
| 417 | int count; |
| 418 | /* Some compilers get confused and warn if this is not initialized. */ |
| 419 | int total = 0; |
| 420 | int pattern = 0, pattern_offset = 0, pattern_count = 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 421 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 422 | while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) { |
| 423 | switch (c) { |
| 424 | case 'b': |
| 425 | bflag = 1; |
| 426 | break; |
| 427 | case 'C': |
| 428 | Cflag = 1; |
| 429 | break; |
| 430 | case 'l': |
| 431 | lflag = 1; |
| 432 | pattern_count = cvtnum(optarg); |
| 433 | if (pattern_count < 0) { |
| 434 | printf("non-numeric length argument -- %s\n", optarg); |
| 435 | return 0; |
| 436 | } |
| 437 | break; |
| 438 | case 'p': |
| 439 | pflag = 1; |
| 440 | break; |
| 441 | case 'P': |
| 442 | Pflag = 1; |
| 443 | pattern = parse_pattern(optarg); |
| 444 | if (pattern < 0) { |
| 445 | return 0; |
| 446 | } |
| 447 | break; |
| 448 | case 'q': |
| 449 | qflag = 1; |
| 450 | break; |
| 451 | case 's': |
| 452 | sflag = 1; |
| 453 | pattern_offset = cvtnum(optarg); |
| 454 | if (pattern_offset < 0) { |
| 455 | printf("non-numeric length argument -- %s\n", optarg); |
| 456 | return 0; |
| 457 | } |
| 458 | break; |
| 459 | case 'v': |
| 460 | vflag = 1; |
| 461 | break; |
| 462 | default: |
| 463 | return command_usage(&read_cmd); |
| 464 | } |
| 465 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 466 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 467 | if (optind != argc - 2) { |
| 468 | return command_usage(&read_cmd); |
| 469 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 470 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 471 | if (bflag && pflag) { |
| 472 | printf("-b and -p cannot be specified at the same time\n"); |
| 473 | return 0; |
| 474 | } |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 475 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 476 | offset = cvtnum(argv[optind]); |
| 477 | if (offset < 0) { |
| 478 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 479 | return 0; |
| 480 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 481 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 482 | optind++; |
| 483 | count = cvtnum(argv[optind]); |
| 484 | if (count < 0) { |
| 485 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 486 | return 0; |
| 487 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 488 | |
Kevin Wolf | d9654a5 | 2009-04-23 15:11:13 +0200 | [diff] [blame] | 489 | if (!Pflag && (lflag || sflag)) { |
| 490 | return command_usage(&read_cmd); |
| 491 | } |
| 492 | |
| 493 | if (!lflag) { |
| 494 | pattern_count = count - pattern_offset; |
| 495 | } |
| 496 | |
| 497 | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { |
Dong Xu Wang | 07f3507 | 2011-11-22 18:06:26 +0800 | [diff] [blame] | 498 | printf("pattern verification range exceeds end of read data\n"); |
Kevin Wolf | d9654a5 | 2009-04-23 15:11:13 +0200 | [diff] [blame] | 499 | return 0; |
| 500 | } |
| 501 | |
Devin Nakamura | 5afc8b3 | 2011-07-11 11:20:25 -0400 | [diff] [blame] | 502 | if (!pflag) { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 503 | if (offset & 0x1ff) { |
| 504 | printf("offset %" PRId64 " is not sector aligned\n", |
| 505 | offset); |
| 506 | return 0; |
| 507 | } |
| 508 | if (count & 0x1ff) { |
| 509 | printf("count %d is not sector aligned\n", |
| 510 | count); |
| 511 | return 0; |
| 512 | } |
Devin Nakamura | 5afc8b3 | 2011-07-11 11:20:25 -0400 | [diff] [blame] | 513 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 514 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 515 | buf = qemu_io_alloc(count, 0xab); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 516 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 517 | gettimeofday(&t1, NULL); |
| 518 | if (pflag) { |
| 519 | cnt = do_pread(buf, offset, count, &total); |
| 520 | } else if (bflag) { |
| 521 | cnt = do_load_vmstate(buf, offset, count, &total); |
| 522 | } else { |
| 523 | cnt = do_read(buf, offset, count, &total); |
| 524 | } |
| 525 | gettimeofday(&t2, NULL); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 526 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 527 | if (cnt < 0) { |
| 528 | printf("read failed: %s\n", strerror(-cnt)); |
| 529 | goto out; |
| 530 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 531 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 532 | if (Pflag) { |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 533 | void *cmp_buf = g_malloc(pattern_count); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 534 | memset(cmp_buf, pattern, pattern_count); |
| 535 | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { |
| 536 | printf("Pattern verification failed at offset %" |
| 537 | PRId64 ", %d bytes\n", |
| 538 | offset + pattern_offset, pattern_count); |
| 539 | } |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 540 | g_free(cmp_buf); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 541 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 542 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 543 | if (qflag) { |
| 544 | goto out; |
| 545 | } |
aliguori | c48101a | 2009-04-18 15:36:23 +0000 | [diff] [blame] | 546 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 547 | if (vflag) { |
| 548 | dump_buffer(buf, offset, count); |
| 549 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 550 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 551 | /* Finally, report back -- -C gives a parsable format */ |
| 552 | t2 = tsub(t2, t1); |
| 553 | print_report("read", &t2, offset, count, total, cnt, Cflag); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 554 | |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 555 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 556 | qemu_io_free(buf); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 557 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 558 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 559 | } |
| 560 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 561 | static void readv_help(void) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 562 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 563 | printf( |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 564 | "\n" |
| 565 | " reads a range of bytes from the given offset into multiple buffers\n" |
| 566 | "\n" |
| 567 | " Example:\n" |
| 568 | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" |
| 569 | "\n" |
| 570 | " Reads a segment of the currently open file, optionally dumping it to the\n" |
| 571 | " standard output stream (with -v option) for subsequent inspection.\n" |
| 572 | " Uses multiple iovec buffers if more than one byte range is specified.\n" |
| 573 | " -C, -- report statistics in a machine parsable format\n" |
aliguori | c48101a | 2009-04-18 15:36:23 +0000 | [diff] [blame] | 574 | " -P, -- use a pattern to verify read data\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 575 | " -v, -- dump buffer to standard output\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 576 | " -q, -- quiet mode, do not show I/O statistics\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 577 | "\n"); |
| 578 | } |
| 579 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 580 | static int readv_f(int argc, char **argv); |
| 581 | |
| 582 | static const cmdinfo_t readv_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 583 | .name = "readv", |
| 584 | .cfunc = readv_f, |
| 585 | .argmin = 2, |
| 586 | .argmax = -1, |
| 587 | .args = "[-Cqv] [-P pattern ] off len [len..]", |
| 588 | .oneline = "reads a number of bytes at a specified offset", |
| 589 | .help = readv_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 590 | }; |
| 591 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 592 | static int readv_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 593 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 594 | struct timeval t1, t2; |
| 595 | int Cflag = 0, qflag = 0, vflag = 0; |
| 596 | int c, cnt; |
| 597 | char *buf; |
| 598 | int64_t offset; |
| 599 | /* Some compilers get confused and warn if this is not initialized. */ |
| 600 | int total = 0; |
| 601 | int nr_iov; |
| 602 | QEMUIOVector qiov; |
| 603 | int pattern = 0; |
| 604 | int Pflag = 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 605 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 606 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
| 607 | switch (c) { |
| 608 | case 'C': |
| 609 | Cflag = 1; |
| 610 | break; |
| 611 | case 'P': |
| 612 | Pflag = 1; |
| 613 | pattern = parse_pattern(optarg); |
| 614 | if (pattern < 0) { |
| 615 | return 0; |
| 616 | } |
| 617 | break; |
| 618 | case 'q': |
| 619 | qflag = 1; |
| 620 | break; |
| 621 | case 'v': |
| 622 | vflag = 1; |
| 623 | break; |
| 624 | default: |
| 625 | return command_usage(&readv_cmd); |
| 626 | } |
| 627 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 628 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 629 | if (optind > argc - 2) { |
| 630 | return command_usage(&readv_cmd); |
| 631 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 632 | |
| 633 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 634 | offset = cvtnum(argv[optind]); |
| 635 | if (offset < 0) { |
| 636 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 637 | return 0; |
| 638 | } |
| 639 | optind++; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 640 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 641 | if (offset & 0x1ff) { |
| 642 | printf("offset %" PRId64 " is not sector aligned\n", |
| 643 | offset); |
| 644 | return 0; |
| 645 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 646 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 647 | nr_iov = argc - optind; |
| 648 | buf = create_iovec(&qiov, &argv[optind], nr_iov, 0xab); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 649 | if (buf == NULL) { |
| 650 | return 0; |
| 651 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 652 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 653 | gettimeofday(&t1, NULL); |
| 654 | cnt = do_aio_readv(&qiov, offset, &total); |
| 655 | gettimeofday(&t2, NULL); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 656 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 657 | if (cnt < 0) { |
| 658 | printf("readv failed: %s\n", strerror(-cnt)); |
| 659 | goto out; |
| 660 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 661 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 662 | if (Pflag) { |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 663 | void *cmp_buf = g_malloc(qiov.size); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 664 | memset(cmp_buf, pattern, qiov.size); |
| 665 | if (memcmp(buf, cmp_buf, qiov.size)) { |
| 666 | printf("Pattern verification failed at offset %" |
| 667 | PRId64 ", %zd bytes\n", offset, qiov.size); |
| 668 | } |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 669 | g_free(cmp_buf); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 670 | } |
aliguori | c48101a | 2009-04-18 15:36:23 +0000 | [diff] [blame] | 671 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 672 | if (qflag) { |
| 673 | goto out; |
| 674 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 675 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 676 | if (vflag) { |
| 677 | dump_buffer(buf, offset, qiov.size); |
| 678 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 679 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 680 | /* Finally, report back -- -C gives a parsable format */ |
| 681 | t2 = tsub(t2, t1); |
| 682 | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 683 | |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 684 | out: |
Kevin Wolf | 9e55953 | 2012-07-02 15:13:53 +0200 | [diff] [blame] | 685 | qemu_iovec_destroy(&qiov); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 686 | qemu_io_free(buf); |
| 687 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 688 | } |
| 689 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 690 | static void write_help(void) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 691 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 692 | printf( |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 693 | "\n" |
| 694 | " writes a range of bytes from the given offset\n" |
| 695 | "\n" |
| 696 | " Example:\n" |
| 697 | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" |
| 698 | "\n" |
| 699 | " Writes into a segment of the currently open file, using a buffer\n" |
| 700 | " filled with a set pattern (0xcdcdcdcd).\n" |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 701 | " -b, -- write to the VM state rather than the virtual disk\n" |
Kevin Wolf | 791bfa3 | 2012-12-04 16:35:12 +0100 | [diff] [blame] | 702 | " -c, -- write compressed data with bdrv_write_compressed\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 703 | " -p, -- use bdrv_pwrite to write the file\n" |
| 704 | " -P, -- use different pattern to fill file\n" |
| 705 | " -C, -- report statistics in a machine parsable format\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 706 | " -q, -- quiet mode, do not show I/O statistics\n" |
Stefan Hajnoczi | 71b58b8 | 2012-02-07 13:27:29 +0000 | [diff] [blame] | 707 | " -z, -- write zeroes using bdrv_co_write_zeroes\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 708 | "\n"); |
| 709 | } |
| 710 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 711 | static int write_f(int argc, char **argv); |
| 712 | |
| 713 | static const cmdinfo_t write_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 714 | .name = "write", |
| 715 | .altname = "w", |
| 716 | .cfunc = write_f, |
| 717 | .argmin = 2, |
| 718 | .argmax = -1, |
Kevin Wolf | 791bfa3 | 2012-12-04 16:35:12 +0100 | [diff] [blame] | 719 | .args = "[-bcCpqz] [-P pattern ] off len", |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 720 | .oneline = "writes a number of bytes at a specified offset", |
| 721 | .help = write_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 722 | }; |
| 723 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 724 | static int write_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 725 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 726 | struct timeval t1, t2; |
Stefan Hajnoczi | 71b58b8 | 2012-02-07 13:27:29 +0000 | [diff] [blame] | 727 | int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0; |
Kevin Wolf | 791bfa3 | 2012-12-04 16:35:12 +0100 | [diff] [blame] | 728 | int cflag = 0; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 729 | int c, cnt; |
Stefan Hajnoczi | 71b58b8 | 2012-02-07 13:27:29 +0000 | [diff] [blame] | 730 | char *buf = NULL; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 731 | int64_t offset; |
| 732 | int count; |
| 733 | /* Some compilers get confused and warn if this is not initialized. */ |
| 734 | int total = 0; |
| 735 | int pattern = 0xcd; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 736 | |
Kevin Wolf | 791bfa3 | 2012-12-04 16:35:12 +0100 | [diff] [blame] | 737 | while ((c = getopt(argc, argv, "bcCpP:qz")) != EOF) { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 738 | switch (c) { |
| 739 | case 'b': |
| 740 | bflag = 1; |
| 741 | break; |
Kevin Wolf | 791bfa3 | 2012-12-04 16:35:12 +0100 | [diff] [blame] | 742 | case 'c': |
| 743 | cflag = 1; |
| 744 | break; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 745 | case 'C': |
| 746 | Cflag = 1; |
| 747 | break; |
| 748 | case 'p': |
| 749 | pflag = 1; |
| 750 | break; |
| 751 | case 'P': |
Stefan Hajnoczi | 71b58b8 | 2012-02-07 13:27:29 +0000 | [diff] [blame] | 752 | Pflag = 1; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 753 | pattern = parse_pattern(optarg); |
| 754 | if (pattern < 0) { |
| 755 | return 0; |
| 756 | } |
| 757 | break; |
| 758 | case 'q': |
| 759 | qflag = 1; |
| 760 | break; |
Stefan Hajnoczi | 71b58b8 | 2012-02-07 13:27:29 +0000 | [diff] [blame] | 761 | case 'z': |
| 762 | zflag = 1; |
| 763 | break; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 764 | default: |
| 765 | return command_usage(&write_cmd); |
| 766 | } |
| 767 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 768 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 769 | if (optind != argc - 2) { |
| 770 | return command_usage(&write_cmd); |
| 771 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 772 | |
Stefan Hajnoczi | 71b58b8 | 2012-02-07 13:27:29 +0000 | [diff] [blame] | 773 | if (bflag + pflag + zflag > 1) { |
| 774 | printf("-b, -p, or -z cannot be specified at the same time\n"); |
| 775 | return 0; |
| 776 | } |
| 777 | |
| 778 | if (zflag && Pflag) { |
| 779 | printf("-z and -P cannot be specified at the same time\n"); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 780 | return 0; |
| 781 | } |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 782 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 783 | offset = cvtnum(argv[optind]); |
| 784 | if (offset < 0) { |
| 785 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 786 | return 0; |
| 787 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 788 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 789 | optind++; |
| 790 | count = cvtnum(argv[optind]); |
| 791 | if (count < 0) { |
| 792 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 793 | return 0; |
| 794 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 795 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 796 | if (!pflag) { |
| 797 | if (offset & 0x1ff) { |
| 798 | printf("offset %" PRId64 " is not sector aligned\n", |
| 799 | offset); |
| 800 | return 0; |
| 801 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 802 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 803 | if (count & 0x1ff) { |
| 804 | printf("count %d is not sector aligned\n", |
| 805 | count); |
| 806 | return 0; |
| 807 | } |
| 808 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 809 | |
Stefan Hajnoczi | 71b58b8 | 2012-02-07 13:27:29 +0000 | [diff] [blame] | 810 | if (!zflag) { |
| 811 | buf = qemu_io_alloc(count, pattern); |
| 812 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 813 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 814 | gettimeofday(&t1, NULL); |
| 815 | if (pflag) { |
| 816 | cnt = do_pwrite(buf, offset, count, &total); |
| 817 | } else if (bflag) { |
| 818 | cnt = do_save_vmstate(buf, offset, count, &total); |
Stefan Hajnoczi | 71b58b8 | 2012-02-07 13:27:29 +0000 | [diff] [blame] | 819 | } else if (zflag) { |
| 820 | cnt = do_co_write_zeroes(offset, count, &total); |
Kevin Wolf | 791bfa3 | 2012-12-04 16:35:12 +0100 | [diff] [blame] | 821 | } else if (cflag) { |
| 822 | cnt = do_write_compressed(buf, offset, count, &total); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 823 | } else { |
| 824 | cnt = do_write(buf, offset, count, &total); |
| 825 | } |
| 826 | gettimeofday(&t2, NULL); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 827 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 828 | if (cnt < 0) { |
| 829 | printf("write failed: %s\n", strerror(-cnt)); |
| 830 | goto out; |
| 831 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 832 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 833 | if (qflag) { |
| 834 | goto out; |
| 835 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 836 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 837 | /* Finally, report back -- -C gives a parsable format */ |
| 838 | t2 = tsub(t2, t1); |
| 839 | print_report("wrote", &t2, offset, count, total, cnt, Cflag); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 840 | |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 841 | out: |
Stefan Hajnoczi | 71b58b8 | 2012-02-07 13:27:29 +0000 | [diff] [blame] | 842 | if (!zflag) { |
| 843 | qemu_io_free(buf); |
| 844 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 845 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 846 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 847 | } |
| 848 | |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 849 | static void |
| 850 | writev_help(void) |
| 851 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 852 | printf( |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 853 | "\n" |
| 854 | " writes a range of bytes from the given offset source from multiple buffers\n" |
| 855 | "\n" |
| 856 | " Example:\n" |
| 857 | " 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" |
| 858 | "\n" |
| 859 | " Writes into a segment of the currently open file, using a buffer\n" |
| 860 | " filled with a set pattern (0xcdcdcdcd).\n" |
| 861 | " -P, -- use different pattern to fill file\n" |
| 862 | " -C, -- report statistics in a machine parsable format\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 863 | " -q, -- quiet mode, do not show I/O statistics\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 864 | "\n"); |
| 865 | } |
| 866 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 867 | static int writev_f(int argc, char **argv); |
| 868 | |
| 869 | static const cmdinfo_t writev_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 870 | .name = "writev", |
| 871 | .cfunc = writev_f, |
| 872 | .argmin = 2, |
| 873 | .argmax = -1, |
| 874 | .args = "[-Cq] [-P pattern ] off len [len..]", |
| 875 | .oneline = "writes a number of bytes at a specified offset", |
| 876 | .help = writev_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 877 | }; |
| 878 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 879 | static int writev_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 880 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 881 | struct timeval t1, t2; |
| 882 | int Cflag = 0, qflag = 0; |
| 883 | int c, cnt; |
| 884 | char *buf; |
| 885 | int64_t offset; |
| 886 | /* Some compilers get confused and warn if this is not initialized. */ |
| 887 | int total = 0; |
| 888 | int nr_iov; |
| 889 | int pattern = 0xcd; |
| 890 | QEMUIOVector qiov; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 891 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 892 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
| 893 | switch (c) { |
| 894 | case 'C': |
| 895 | Cflag = 1; |
| 896 | break; |
| 897 | case 'q': |
| 898 | qflag = 1; |
| 899 | break; |
| 900 | case 'P': |
| 901 | pattern = parse_pattern(optarg); |
| 902 | if (pattern < 0) { |
| 903 | return 0; |
| 904 | } |
| 905 | break; |
| 906 | default: |
| 907 | return command_usage(&writev_cmd); |
| 908 | } |
| 909 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 910 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 911 | if (optind > argc - 2) { |
| 912 | return command_usage(&writev_cmd); |
| 913 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 914 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 915 | offset = cvtnum(argv[optind]); |
| 916 | if (offset < 0) { |
| 917 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 918 | return 0; |
| 919 | } |
| 920 | optind++; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 921 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 922 | if (offset & 0x1ff) { |
| 923 | printf("offset %" PRId64 " is not sector aligned\n", |
| 924 | offset); |
| 925 | return 0; |
| 926 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 927 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 928 | nr_iov = argc - optind; |
| 929 | buf = create_iovec(&qiov, &argv[optind], nr_iov, pattern); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 930 | if (buf == NULL) { |
| 931 | return 0; |
| 932 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 933 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 934 | gettimeofday(&t1, NULL); |
| 935 | cnt = do_aio_writev(&qiov, offset, &total); |
| 936 | gettimeofday(&t2, NULL); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 937 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 938 | if (cnt < 0) { |
| 939 | printf("writev failed: %s\n", strerror(-cnt)); |
| 940 | goto out; |
| 941 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 942 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 943 | if (qflag) { |
| 944 | goto out; |
| 945 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 946 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 947 | /* Finally, report back -- -C gives a parsable format */ |
| 948 | t2 = tsub(t2, t1); |
| 949 | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 950 | out: |
Kevin Wolf | 9e55953 | 2012-07-02 15:13:53 +0200 | [diff] [blame] | 951 | qemu_iovec_destroy(&qiov); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 952 | qemu_io_free(buf); |
| 953 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 954 | } |
| 955 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 956 | static void multiwrite_help(void) |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 957 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 958 | printf( |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 959 | "\n" |
| 960 | " writes a range of bytes from the given offset source from multiple buffers,\n" |
| 961 | " in a batch of requests that may be merged by qemu\n" |
| 962 | "\n" |
| 963 | " Example:\n" |
Stefan Weil | b2bedb2 | 2011-09-12 22:33:01 +0200 | [diff] [blame] | 964 | " 'multiwrite 512 1k 1k ; 4k 1k'\n" |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 965 | " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n" |
| 966 | "\n" |
| 967 | " Writes into a segment of the currently open file, using a buffer\n" |
| 968 | " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n" |
| 969 | " by one for each request contained in the multiwrite command.\n" |
| 970 | " -P, -- use different pattern to fill file\n" |
| 971 | " -C, -- report statistics in a machine parsable format\n" |
| 972 | " -q, -- quiet mode, do not show I/O statistics\n" |
| 973 | "\n"); |
| 974 | } |
| 975 | |
| 976 | static int multiwrite_f(int argc, char **argv); |
| 977 | |
| 978 | static const cmdinfo_t multiwrite_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 979 | .name = "multiwrite", |
| 980 | .cfunc = multiwrite_f, |
| 981 | .argmin = 2, |
| 982 | .argmax = -1, |
| 983 | .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]", |
| 984 | .oneline = "issues multiple write requests at once", |
| 985 | .help = multiwrite_help, |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 986 | }; |
| 987 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 988 | static int multiwrite_f(int argc, char **argv) |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 989 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 990 | struct timeval t1, t2; |
| 991 | int Cflag = 0, qflag = 0; |
| 992 | int c, cnt; |
| 993 | char **buf; |
| 994 | int64_t offset, first_offset = 0; |
| 995 | /* Some compilers get confused and warn if this is not initialized. */ |
| 996 | int total = 0; |
| 997 | int nr_iov; |
| 998 | int nr_reqs; |
| 999 | int pattern = 0xcd; |
| 1000 | QEMUIOVector *qiovs; |
| 1001 | int i; |
| 1002 | BlockRequest *reqs; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1003 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1004 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
| 1005 | switch (c) { |
| 1006 | case 'C': |
| 1007 | Cflag = 1; |
| 1008 | break; |
| 1009 | case 'q': |
| 1010 | qflag = 1; |
| 1011 | break; |
| 1012 | case 'P': |
| 1013 | pattern = parse_pattern(optarg); |
| 1014 | if (pattern < 0) { |
| 1015 | return 0; |
| 1016 | } |
| 1017 | break; |
| 1018 | default: |
| 1019 | return command_usage(&writev_cmd); |
| 1020 | } |
| 1021 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1022 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1023 | if (optind > argc - 2) { |
| 1024 | return command_usage(&writev_cmd); |
| 1025 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1026 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1027 | nr_reqs = 1; |
| 1028 | for (i = optind; i < argc; i++) { |
| 1029 | if (!strcmp(argv[i], ";")) { |
| 1030 | nr_reqs++; |
| 1031 | } |
| 1032 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1033 | |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 1034 | reqs = g_malloc0(nr_reqs * sizeof(*reqs)); |
| 1035 | buf = g_malloc0(nr_reqs * sizeof(*buf)); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1036 | qiovs = g_malloc(nr_reqs * sizeof(*qiovs)); |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1037 | |
Kevin Wolf | 67403db | 2011-10-31 11:49:21 +0100 | [diff] [blame] | 1038 | for (i = 0; i < nr_reqs && optind < argc; i++) { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1039 | int j; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1040 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1041 | /* Read the offset of the request */ |
| 1042 | offset = cvtnum(argv[optind]); |
| 1043 | if (offset < 0) { |
| 1044 | printf("non-numeric offset argument -- %s\n", argv[optind]); |
Kevin Wolf | 67403db | 2011-10-31 11:49:21 +0100 | [diff] [blame] | 1045 | goto out; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1046 | } |
| 1047 | optind++; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1048 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1049 | if (offset & 0x1ff) { |
| 1050 | printf("offset %lld is not sector aligned\n", |
| 1051 | (long long)offset); |
Kevin Wolf | 67403db | 2011-10-31 11:49:21 +0100 | [diff] [blame] | 1052 | goto out; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1053 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1054 | |
| 1055 | if (i == 0) { |
| 1056 | first_offset = offset; |
| 1057 | } |
| 1058 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1059 | /* Read lengths for qiov entries */ |
| 1060 | for (j = optind; j < argc; j++) { |
| 1061 | if (!strcmp(argv[j], ";")) { |
| 1062 | break; |
| 1063 | } |
| 1064 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1065 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1066 | nr_iov = j - optind; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1067 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1068 | /* Build request */ |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 1069 | buf[i] = create_iovec(&qiovs[i], &argv[optind], nr_iov, pattern); |
| 1070 | if (buf[i] == NULL) { |
| 1071 | goto out; |
| 1072 | } |
| 1073 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1074 | reqs[i].qiov = &qiovs[i]; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1075 | reqs[i].sector = offset >> 9; |
| 1076 | reqs[i].nb_sectors = reqs[i].qiov->size >> 9; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1077 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1078 | optind = j + 1; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1079 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1080 | pattern++; |
| 1081 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1082 | |
Kevin Wolf | 67403db | 2011-10-31 11:49:21 +0100 | [diff] [blame] | 1083 | /* If there were empty requests at the end, ignore them */ |
| 1084 | nr_reqs = i; |
| 1085 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1086 | gettimeofday(&t1, NULL); |
| 1087 | cnt = do_aio_multiwrite(reqs, nr_reqs, &total); |
| 1088 | gettimeofday(&t2, NULL); |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1089 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1090 | if (cnt < 0) { |
| 1091 | printf("aio_multiwrite failed: %s\n", strerror(-cnt)); |
| 1092 | goto out; |
| 1093 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1094 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1095 | if (qflag) { |
| 1096 | goto out; |
| 1097 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1098 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1099 | /* Finally, report back -- -C gives a parsable format */ |
| 1100 | t2 = tsub(t2, t1); |
| 1101 | print_report("wrote", &t2, first_offset, total, total, cnt, Cflag); |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1102 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1103 | for (i = 0; i < nr_reqs; i++) { |
| 1104 | qemu_io_free(buf[i]); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 1105 | if (reqs[i].qiov != NULL) { |
| 1106 | qemu_iovec_destroy(&qiovs[i]); |
| 1107 | } |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1108 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1109 | g_free(buf); |
| 1110 | g_free(reqs); |
| 1111 | g_free(qiovs); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1112 | return 0; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1113 | } |
| 1114 | |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1115 | struct aio_ctx { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1116 | QEMUIOVector qiov; |
| 1117 | int64_t offset; |
| 1118 | char *buf; |
| 1119 | int qflag; |
| 1120 | int vflag; |
| 1121 | int Cflag; |
| 1122 | int Pflag; |
| 1123 | int pattern; |
| 1124 | struct timeval t1; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1125 | }; |
| 1126 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1127 | static void aio_write_done(void *opaque, int ret) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1128 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1129 | struct aio_ctx *ctx = opaque; |
| 1130 | struct timeval t2; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1131 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1132 | gettimeofday(&t2, NULL); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1133 | |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1134 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1135 | if (ret < 0) { |
| 1136 | printf("aio_write failed: %s\n", strerror(-ret)); |
| 1137 | goto out; |
| 1138 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1139 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1140 | if (ctx->qflag) { |
| 1141 | goto out; |
| 1142 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1143 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1144 | /* Finally, report back -- -C gives a parsable format */ |
| 1145 | t2 = tsub(t2, ctx->t1); |
| 1146 | print_report("wrote", &t2, ctx->offset, ctx->qiov.size, |
| 1147 | ctx->qiov.size, 1, ctx->Cflag); |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 1148 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1149 | qemu_io_free(ctx->buf); |
Kevin Wolf | 9e55953 | 2012-07-02 15:13:53 +0200 | [diff] [blame] | 1150 | qemu_iovec_destroy(&ctx->qiov); |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1151 | g_free(ctx); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1152 | } |
| 1153 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1154 | static void aio_read_done(void *opaque, int ret) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1155 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1156 | struct aio_ctx *ctx = opaque; |
| 1157 | struct timeval t2; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1158 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1159 | gettimeofday(&t2, NULL); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1160 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1161 | if (ret < 0) { |
| 1162 | printf("readv failed: %s\n", strerror(-ret)); |
| 1163 | goto out; |
| 1164 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1165 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1166 | if (ctx->Pflag) { |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1167 | void *cmp_buf = g_malloc(ctx->qiov.size); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1168 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1169 | memset(cmp_buf, ctx->pattern, ctx->qiov.size); |
| 1170 | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { |
| 1171 | printf("Pattern verification failed at offset %" |
| 1172 | PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size); |
| 1173 | } |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1174 | g_free(cmp_buf); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1175 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1176 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1177 | if (ctx->qflag) { |
| 1178 | goto out; |
| 1179 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1180 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1181 | if (ctx->vflag) { |
| 1182 | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); |
| 1183 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1184 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1185 | /* Finally, report back -- -C gives a parsable format */ |
| 1186 | t2 = tsub(t2, ctx->t1); |
| 1187 | print_report("read", &t2, ctx->offset, ctx->qiov.size, |
| 1188 | ctx->qiov.size, 1, ctx->Cflag); |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 1189 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1190 | qemu_io_free(ctx->buf); |
Kevin Wolf | 9e55953 | 2012-07-02 15:13:53 +0200 | [diff] [blame] | 1191 | qemu_iovec_destroy(&ctx->qiov); |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1192 | g_free(ctx); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1193 | } |
| 1194 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1195 | static void aio_read_help(void) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1196 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1197 | printf( |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1198 | "\n" |
| 1199 | " asynchronously reads a range of bytes from the given offset\n" |
| 1200 | "\n" |
| 1201 | " Example:\n" |
| 1202 | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" |
| 1203 | "\n" |
| 1204 | " Reads a segment of the currently open file, optionally dumping it to the\n" |
| 1205 | " standard output stream (with -v option) for subsequent inspection.\n" |
Christoph Hellwig | e432cef | 2010-03-28 12:19:31 +0200 | [diff] [blame] | 1206 | " The read is performed asynchronously and the aio_flush command must be\n" |
Laszlo Ersek | 96bab41 | 2012-01-24 21:13:28 +0100 | [diff] [blame] | 1207 | " used to ensure all outstanding aio requests have been completed.\n" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1208 | " -C, -- report statistics in a machine parsable format\n" |
| 1209 | " -P, -- use a pattern to verify read data\n" |
| 1210 | " -v, -- dump buffer to standard output\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 1211 | " -q, -- quiet mode, do not show I/O statistics\n" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1212 | "\n"); |
| 1213 | } |
| 1214 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1215 | static int aio_read_f(int argc, char **argv); |
| 1216 | |
| 1217 | static const cmdinfo_t aio_read_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1218 | .name = "aio_read", |
| 1219 | .cfunc = aio_read_f, |
| 1220 | .argmin = 2, |
| 1221 | .argmax = -1, |
| 1222 | .args = "[-Cqv] [-P pattern ] off len [len..]", |
| 1223 | .oneline = "asynchronously reads a number of bytes", |
| 1224 | .help = aio_read_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1225 | }; |
| 1226 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1227 | static int aio_read_f(int argc, char **argv) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1228 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1229 | int nr_iov, c; |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1230 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1231 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1232 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
| 1233 | switch (c) { |
| 1234 | case 'C': |
| 1235 | ctx->Cflag = 1; |
| 1236 | break; |
| 1237 | case 'P': |
| 1238 | ctx->Pflag = 1; |
| 1239 | ctx->pattern = parse_pattern(optarg); |
| 1240 | if (ctx->pattern < 0) { |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1241 | g_free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1242 | return 0; |
| 1243 | } |
| 1244 | break; |
| 1245 | case 'q': |
| 1246 | ctx->qflag = 1; |
| 1247 | break; |
| 1248 | case 'v': |
| 1249 | ctx->vflag = 1; |
| 1250 | break; |
| 1251 | default: |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1252 | g_free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1253 | return command_usage(&aio_read_cmd); |
| 1254 | } |
| 1255 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1256 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1257 | if (optind > argc - 2) { |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1258 | g_free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1259 | return command_usage(&aio_read_cmd); |
| 1260 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1261 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1262 | ctx->offset = cvtnum(argv[optind]); |
| 1263 | if (ctx->offset < 0) { |
| 1264 | printf("non-numeric length argument -- %s\n", argv[optind]); |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1265 | g_free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1266 | return 0; |
| 1267 | } |
| 1268 | optind++; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1269 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1270 | if (ctx->offset & 0x1ff) { |
| 1271 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1272 | ctx->offset); |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1273 | g_free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1274 | return 0; |
| 1275 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1276 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1277 | nr_iov = argc - optind; |
| 1278 | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, 0xab); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 1279 | if (ctx->buf == NULL) { |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1280 | g_free(ctx); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 1281 | return 0; |
| 1282 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1283 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1284 | gettimeofday(&ctx->t1, NULL); |
Paolo Bonzini | ad54ae8 | 2011-11-30 09:12:30 +0100 | [diff] [blame] | 1285 | bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov, |
| 1286 | ctx->qiov.size >> 9, aio_read_done, ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1287 | return 0; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1288 | } |
| 1289 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1290 | static void aio_write_help(void) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1291 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1292 | printf( |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1293 | "\n" |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1294 | " asynchronously writes a range of bytes from the given offset source\n" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1295 | " from multiple buffers\n" |
| 1296 | "\n" |
| 1297 | " Example:\n" |
| 1298 | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" |
| 1299 | "\n" |
| 1300 | " Writes into a segment of the currently open file, using a buffer\n" |
| 1301 | " filled with a set pattern (0xcdcdcdcd).\n" |
Christoph Hellwig | e432cef | 2010-03-28 12:19:31 +0200 | [diff] [blame] | 1302 | " The write is performed asynchronously and the aio_flush command must be\n" |
Laszlo Ersek | 96bab41 | 2012-01-24 21:13:28 +0100 | [diff] [blame] | 1303 | " used to ensure all outstanding aio requests have been completed.\n" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1304 | " -P, -- use different pattern to fill file\n" |
| 1305 | " -C, -- report statistics in a machine parsable format\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 1306 | " -q, -- quiet mode, do not show I/O statistics\n" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1307 | "\n"); |
| 1308 | } |
| 1309 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1310 | static int aio_write_f(int argc, char **argv); |
| 1311 | |
| 1312 | static const cmdinfo_t aio_write_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1313 | .name = "aio_write", |
| 1314 | .cfunc = aio_write_f, |
| 1315 | .argmin = 2, |
| 1316 | .argmax = -1, |
| 1317 | .args = "[-Cq] [-P pattern ] off len [len..]", |
| 1318 | .oneline = "asynchronously writes a number of bytes", |
| 1319 | .help = aio_write_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1320 | }; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1321 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1322 | static int aio_write_f(int argc, char **argv) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1323 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1324 | int nr_iov, c; |
| 1325 | int pattern = 0xcd; |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1326 | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1327 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1328 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
| 1329 | switch (c) { |
| 1330 | case 'C': |
| 1331 | ctx->Cflag = 1; |
| 1332 | break; |
| 1333 | case 'q': |
| 1334 | ctx->qflag = 1; |
| 1335 | break; |
| 1336 | case 'P': |
| 1337 | pattern = parse_pattern(optarg); |
| 1338 | if (pattern < 0) { |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1339 | g_free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1340 | return 0; |
| 1341 | } |
| 1342 | break; |
| 1343 | default: |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1344 | g_free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1345 | return command_usage(&aio_write_cmd); |
| 1346 | } |
| 1347 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1348 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1349 | if (optind > argc - 2) { |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1350 | g_free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1351 | return command_usage(&aio_write_cmd); |
| 1352 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1353 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1354 | ctx->offset = cvtnum(argv[optind]); |
| 1355 | if (ctx->offset < 0) { |
| 1356 | printf("non-numeric length argument -- %s\n", argv[optind]); |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1357 | g_free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1358 | return 0; |
| 1359 | } |
| 1360 | optind++; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1361 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1362 | if (ctx->offset & 0x1ff) { |
| 1363 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1364 | ctx->offset); |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1365 | g_free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1366 | return 0; |
| 1367 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1368 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1369 | nr_iov = argc - optind; |
| 1370 | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, pattern); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 1371 | if (ctx->buf == NULL) { |
Stefan Hajnoczi | 031380d | 2012-01-16 09:28:06 +0000 | [diff] [blame] | 1372 | g_free(ctx); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 1373 | return 0; |
| 1374 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1375 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1376 | gettimeofday(&ctx->t1, NULL); |
Paolo Bonzini | ad54ae8 | 2011-11-30 09:12:30 +0100 | [diff] [blame] | 1377 | bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov, |
| 1378 | ctx->qiov.size >> 9, aio_write_done, ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1379 | return 0; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1380 | } |
| 1381 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1382 | static int aio_flush_f(int argc, char **argv) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1383 | { |
Kevin Wolf | e7c8b09 | 2012-11-13 16:41:22 +0100 | [diff] [blame] | 1384 | bdrv_drain_all(); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1385 | return 0; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1386 | } |
| 1387 | |
| 1388 | static const cmdinfo_t aio_flush_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1389 | .name = "aio_flush", |
| 1390 | .cfunc = aio_flush_f, |
| 1391 | .oneline = "completes all outstanding aio requests" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1392 | }; |
| 1393 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1394 | static int flush_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1395 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1396 | bdrv_flush(bs); |
| 1397 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1398 | } |
| 1399 | |
| 1400 | static const cmdinfo_t flush_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1401 | .name = "flush", |
| 1402 | .altname = "f", |
| 1403 | .cfunc = flush_f, |
| 1404 | .oneline = "flush all in-core file state to disk", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1405 | }; |
| 1406 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1407 | static int truncate_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1408 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1409 | int64_t offset; |
| 1410 | int ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1411 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1412 | offset = cvtnum(argv[1]); |
| 1413 | if (offset < 0) { |
| 1414 | printf("non-numeric truncate argument -- %s\n", argv[1]); |
| 1415 | return 0; |
| 1416 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1417 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1418 | ret = bdrv_truncate(bs, offset); |
| 1419 | if (ret < 0) { |
| 1420 | printf("truncate: %s\n", strerror(-ret)); |
| 1421 | return 0; |
| 1422 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1423 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1424 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1425 | } |
| 1426 | |
| 1427 | static const cmdinfo_t truncate_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1428 | .name = "truncate", |
| 1429 | .altname = "t", |
| 1430 | .cfunc = truncate_f, |
| 1431 | .argmin = 1, |
| 1432 | .argmax = 1, |
| 1433 | .args = "off", |
| 1434 | .oneline = "truncates the current file at the given offset", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1435 | }; |
| 1436 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1437 | static int length_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1438 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1439 | int64_t size; |
| 1440 | char s1[64]; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1441 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1442 | size = bdrv_getlength(bs); |
| 1443 | if (size < 0) { |
| 1444 | printf("getlength: %s\n", strerror(-size)); |
| 1445 | return 0; |
| 1446 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1447 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1448 | cvtstr(size, s1, sizeof(s1)); |
| 1449 | printf("%s\n", s1); |
| 1450 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1451 | } |
| 1452 | |
| 1453 | |
| 1454 | static const cmdinfo_t length_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1455 | .name = "length", |
| 1456 | .altname = "l", |
| 1457 | .cfunc = length_f, |
| 1458 | .oneline = "gets the length of the current file", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1459 | }; |
| 1460 | |
| 1461 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1462 | static int info_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1463 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1464 | BlockDriverInfo bdi; |
| 1465 | char s1[64], s2[64]; |
| 1466 | int ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1467 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1468 | if (bs->drv && bs->drv->format_name) { |
| 1469 | printf("format name: %s\n", bs->drv->format_name); |
| 1470 | } |
| 1471 | if (bs->drv && bs->drv->protocol_name) { |
| 1472 | printf("format name: %s\n", bs->drv->protocol_name); |
| 1473 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1474 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1475 | ret = bdrv_get_info(bs, &bdi); |
| 1476 | if (ret) { |
| 1477 | return 0; |
| 1478 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1479 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1480 | cvtstr(bdi.cluster_size, s1, sizeof(s1)); |
| 1481 | cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1482 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1483 | printf("cluster size: %s\n", s1); |
| 1484 | printf("vm state offset: %s\n", s2); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1485 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1486 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1487 | } |
| 1488 | |
| 1489 | |
| 1490 | |
| 1491 | static const cmdinfo_t info_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1492 | .name = "info", |
| 1493 | .altname = "i", |
| 1494 | .cfunc = info_f, |
| 1495 | .oneline = "prints information about the current file", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1496 | }; |
| 1497 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1498 | static void discard_help(void) |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1499 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1500 | printf( |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1501 | "\n" |
| 1502 | " discards a range of bytes from the given offset\n" |
| 1503 | "\n" |
| 1504 | " Example:\n" |
| 1505 | " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" |
| 1506 | "\n" |
| 1507 | " Discards a segment of the currently open file.\n" |
| 1508 | " -C, -- report statistics in a machine parsable format\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 1509 | " -q, -- quiet mode, do not show I/O statistics\n" |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1510 | "\n"); |
| 1511 | } |
| 1512 | |
| 1513 | static int discard_f(int argc, char **argv); |
| 1514 | |
| 1515 | static const cmdinfo_t discard_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1516 | .name = "discard", |
| 1517 | .altname = "d", |
| 1518 | .cfunc = discard_f, |
| 1519 | .argmin = 2, |
| 1520 | .argmax = -1, |
| 1521 | .args = "[-Cq] off len", |
| 1522 | .oneline = "discards a number of bytes at a specified offset", |
| 1523 | .help = discard_help, |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1524 | }; |
| 1525 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1526 | static int discard_f(int argc, char **argv) |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1527 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1528 | struct timeval t1, t2; |
| 1529 | int Cflag = 0, qflag = 0; |
| 1530 | int c, ret; |
| 1531 | int64_t offset; |
| 1532 | int count; |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1533 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1534 | while ((c = getopt(argc, argv, "Cq")) != EOF) { |
| 1535 | switch (c) { |
| 1536 | case 'C': |
| 1537 | Cflag = 1; |
| 1538 | break; |
| 1539 | case 'q': |
| 1540 | qflag = 1; |
| 1541 | break; |
| 1542 | default: |
| 1543 | return command_usage(&discard_cmd); |
| 1544 | } |
| 1545 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1546 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1547 | if (optind != argc - 2) { |
| 1548 | return command_usage(&discard_cmd); |
| 1549 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1550 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1551 | offset = cvtnum(argv[optind]); |
| 1552 | if (offset < 0) { |
| 1553 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1554 | return 0; |
| 1555 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1556 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1557 | optind++; |
| 1558 | count = cvtnum(argv[optind]); |
| 1559 | if (count < 0) { |
| 1560 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1561 | return 0; |
| 1562 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1563 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1564 | gettimeofday(&t1, NULL); |
| 1565 | ret = bdrv_discard(bs, offset >> BDRV_SECTOR_BITS, |
| 1566 | count >> BDRV_SECTOR_BITS); |
| 1567 | gettimeofday(&t2, NULL); |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1568 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1569 | if (ret < 0) { |
| 1570 | printf("discard failed: %s\n", strerror(-ret)); |
| 1571 | goto out; |
| 1572 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1573 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1574 | /* Finally, report back -- -C gives a parsable format */ |
| 1575 | if (!qflag) { |
| 1576 | t2 = tsub(t2, t1); |
| 1577 | print_report("discard", &t2, offset, count, count, 1, Cflag); |
| 1578 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1579 | |
| 1580 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1581 | return 0; |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1582 | } |
| 1583 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1584 | static int alloc_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1585 | { |
Paolo Bonzini | cc785c3 | 2012-05-08 16:51:52 +0200 | [diff] [blame] | 1586 | int64_t offset, sector_num; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1587 | int nb_sectors, remaining; |
| 1588 | char s1[64]; |
| 1589 | int num, sum_alloc; |
| 1590 | int ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1591 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1592 | offset = cvtnum(argv[1]); |
| 1593 | if (offset & 0x1ff) { |
| 1594 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1595 | offset); |
| 1596 | return 0; |
| 1597 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1598 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1599 | if (argc == 3) { |
| 1600 | nb_sectors = cvtnum(argv[2]); |
| 1601 | } else { |
| 1602 | nb_sectors = 1; |
| 1603 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1604 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1605 | remaining = nb_sectors; |
| 1606 | sum_alloc = 0; |
Paolo Bonzini | cc785c3 | 2012-05-08 16:51:52 +0200 | [diff] [blame] | 1607 | sector_num = offset >> 9; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1608 | while (remaining) { |
Paolo Bonzini | cc785c3 | 2012-05-08 16:51:52 +0200 | [diff] [blame] | 1609 | ret = bdrv_is_allocated(bs, sector_num, remaining, &num); |
| 1610 | sector_num += num; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1611 | remaining -= num; |
| 1612 | if (ret) { |
| 1613 | sum_alloc += num; |
| 1614 | } |
Paolo Bonzini | cc785c3 | 2012-05-08 16:51:52 +0200 | [diff] [blame] | 1615 | if (num == 0) { |
| 1616 | nb_sectors -= remaining; |
| 1617 | remaining = 0; |
| 1618 | } |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1619 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1620 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1621 | cvtstr(offset, s1, sizeof(s1)); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1622 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1623 | printf("%d/%d sectors allocated at offset %s\n", |
| 1624 | sum_alloc, nb_sectors, s1); |
| 1625 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1626 | } |
| 1627 | |
| 1628 | static const cmdinfo_t alloc_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1629 | .name = "alloc", |
| 1630 | .altname = "a", |
| 1631 | .argmin = 1, |
| 1632 | .argmax = 2, |
| 1633 | .cfunc = alloc_f, |
| 1634 | .args = "off [sectors]", |
| 1635 | .oneline = "checks if a sector is present in the file", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1636 | }; |
| 1637 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1638 | static int map_f(int argc, char **argv) |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1639 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1640 | int64_t offset; |
| 1641 | int64_t nb_sectors; |
| 1642 | char s1[64]; |
| 1643 | int num, num_checked; |
| 1644 | int ret; |
| 1645 | const char *retstr; |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1646 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1647 | offset = 0; |
| 1648 | nb_sectors = bs->total_sectors; |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1649 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1650 | do { |
| 1651 | num_checked = MIN(nb_sectors, INT_MAX); |
| 1652 | ret = bdrv_is_allocated(bs, offset, num_checked, &num); |
| 1653 | retstr = ret ? " allocated" : "not allocated"; |
| 1654 | cvtstr(offset << 9ULL, s1, sizeof(s1)); |
| 1655 | printf("[% 24" PRId64 "] % 8d/% 8d sectors %s at offset %s (%d)\n", |
| 1656 | offset << 9ULL, num, num_checked, retstr, s1, ret); |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1657 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1658 | offset += num; |
| 1659 | nb_sectors -= num; |
| 1660 | } while (offset < bs->total_sectors); |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1661 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1662 | return 0; |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1663 | } |
| 1664 | |
| 1665 | static const cmdinfo_t map_cmd = { |
| 1666 | .name = "map", |
| 1667 | .argmin = 0, |
| 1668 | .argmax = 0, |
| 1669 | .cfunc = map_f, |
| 1670 | .args = "", |
| 1671 | .oneline = "prints the allocated areas of a file", |
| 1672 | }; |
| 1673 | |
Kevin Wolf | 41c695c | 2012-12-06 14:32:58 +0100 | [diff] [blame] | 1674 | static int break_f(int argc, char **argv) |
| 1675 | { |
| 1676 | int ret; |
| 1677 | |
| 1678 | ret = bdrv_debug_breakpoint(bs, argv[1], argv[2]); |
| 1679 | if (ret < 0) { |
| 1680 | printf("Could not set breakpoint: %s\n", strerror(-ret)); |
| 1681 | } |
| 1682 | |
| 1683 | return 0; |
| 1684 | } |
| 1685 | |
| 1686 | static const cmdinfo_t break_cmd = { |
| 1687 | .name = "break", |
| 1688 | .argmin = 2, |
| 1689 | .argmax = 2, |
| 1690 | .cfunc = break_f, |
| 1691 | .args = "event tag", |
| 1692 | .oneline = "sets a breakpoint on event and tags the stopped " |
| 1693 | "request as tag", |
| 1694 | }; |
| 1695 | |
| 1696 | static int resume_f(int argc, char **argv) |
| 1697 | { |
| 1698 | int ret; |
| 1699 | |
| 1700 | ret = bdrv_debug_resume(bs, argv[1]); |
| 1701 | if (ret < 0) { |
| 1702 | printf("Could not resume request: %s\n", strerror(-ret)); |
| 1703 | } |
| 1704 | |
| 1705 | return 0; |
| 1706 | } |
| 1707 | |
| 1708 | static const cmdinfo_t resume_cmd = { |
| 1709 | .name = "resume", |
| 1710 | .argmin = 1, |
| 1711 | .argmax = 1, |
| 1712 | .cfunc = resume_f, |
| 1713 | .args = "tag", |
| 1714 | .oneline = "resumes the request tagged as tag", |
| 1715 | }; |
| 1716 | |
| 1717 | static int wait_break_f(int argc, char **argv) |
| 1718 | { |
| 1719 | while (!bdrv_debug_is_suspended(bs, argv[1])) { |
| 1720 | qemu_aio_wait(); |
| 1721 | } |
| 1722 | |
| 1723 | return 0; |
| 1724 | } |
| 1725 | |
| 1726 | static const cmdinfo_t wait_break_cmd = { |
| 1727 | .name = "wait_break", |
| 1728 | .argmin = 1, |
| 1729 | .argmax = 1, |
| 1730 | .cfunc = wait_break_f, |
| 1731 | .args = "tag", |
| 1732 | .oneline = "waits for the suspension of a request", |
| 1733 | }; |
| 1734 | |
Stefan Hajnoczi | e01c30d | 2012-07-27 09:05:23 +0100 | [diff] [blame] | 1735 | static int abort_f(int argc, char **argv) |
| 1736 | { |
| 1737 | abort(); |
| 1738 | } |
| 1739 | |
| 1740 | static const cmdinfo_t abort_cmd = { |
| 1741 | .name = "abort", |
| 1742 | .cfunc = abort_f, |
| 1743 | .flags = CMD_NOFILE_OK, |
| 1744 | .oneline = "simulate a program crash using abort(3)", |
| 1745 | }; |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1746 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1747 | static int close_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1748 | { |
Stefan Hajnoczi | b465785 | 2011-10-27 10:54:26 +0100 | [diff] [blame] | 1749 | bdrv_delete(bs); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1750 | bs = NULL; |
| 1751 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1752 | } |
| 1753 | |
| 1754 | static const cmdinfo_t close_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1755 | .name = "close", |
| 1756 | .altname = "c", |
| 1757 | .cfunc = close_f, |
| 1758 | .oneline = "close the current open file", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1759 | }; |
| 1760 | |
Christoph Hellwig | 9c4bab2 | 2009-07-10 13:33:47 +0200 | [diff] [blame] | 1761 | static int openfile(char *name, int flags, int growable) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1762 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1763 | if (bs) { |
| 1764 | fprintf(stderr, "file open already, try 'help close'\n"); |
| 1765 | return 1; |
| 1766 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1767 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1768 | if (growable) { |
| 1769 | if (bdrv_file_open(&bs, name, flags)) { |
| 1770 | fprintf(stderr, "%s: can't open device %s\n", progname, name); |
| 1771 | return 1; |
| 1772 | } |
| 1773 | } else { |
| 1774 | bs = bdrv_new("hda"); |
Christoph Hellwig | 6db9560 | 2010-04-05 16:53:57 +0200 | [diff] [blame] | 1775 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1776 | if (bdrv_open(bs, name, flags, NULL) < 0) { |
| 1777 | fprintf(stderr, "%s: can't open device %s\n", progname, name); |
Stefan Hajnoczi | b465785 | 2011-10-27 10:54:26 +0100 | [diff] [blame] | 1778 | bdrv_delete(bs); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1779 | bs = NULL; |
| 1780 | return 1; |
| 1781 | } |
| 1782 | } |
Christoph Hellwig | 1db6947 | 2009-07-15 23:11:21 +0200 | [diff] [blame] | 1783 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1784 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1785 | } |
| 1786 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1787 | static void open_help(void) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1788 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1789 | printf( |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1790 | "\n" |
| 1791 | " opens a new file in the requested mode\n" |
| 1792 | "\n" |
| 1793 | " Example:\n" |
| 1794 | " 'open -Cn /tmp/data' - creates/opens data file read-write and uncached\n" |
| 1795 | "\n" |
| 1796 | " Opens a file for subsequent use by all of the other qemu-io commands.\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1797 | " -r, -- open file read-only\n" |
| 1798 | " -s, -- use snapshot file\n" |
| 1799 | " -n, -- disable host cache\n" |
Christoph Hellwig | 9c4bab2 | 2009-07-10 13:33:47 +0200 | [diff] [blame] | 1800 | " -g, -- allow file to grow (only applies to protocols)" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1801 | "\n"); |
| 1802 | } |
| 1803 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1804 | static int open_f(int argc, char **argv); |
| 1805 | |
| 1806 | static const cmdinfo_t open_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1807 | .name = "open", |
| 1808 | .altname = "o", |
| 1809 | .cfunc = open_f, |
| 1810 | .argmin = 1, |
| 1811 | .argmax = -1, |
| 1812 | .flags = CMD_NOFILE_OK, |
| 1813 | .args = "[-Crsn] [path]", |
| 1814 | .oneline = "open the file specified by path", |
| 1815 | .help = open_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1816 | }; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1817 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1818 | static int open_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1819 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1820 | int flags = 0; |
| 1821 | int readonly = 0; |
| 1822 | int growable = 0; |
| 1823 | int c; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1824 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1825 | while ((c = getopt(argc, argv, "snrg")) != EOF) { |
| 1826 | switch (c) { |
| 1827 | case 's': |
| 1828 | flags |= BDRV_O_SNAPSHOT; |
| 1829 | break; |
| 1830 | case 'n': |
| 1831 | flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB; |
| 1832 | break; |
| 1833 | case 'r': |
| 1834 | readonly = 1; |
| 1835 | break; |
| 1836 | case 'g': |
| 1837 | growable = 1; |
| 1838 | break; |
| 1839 | default: |
| 1840 | return command_usage(&open_cmd); |
Naphtali Sprei | f5edb01 | 2010-01-17 16:48:13 +0200 | [diff] [blame] | 1841 | } |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1842 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1843 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1844 | if (!readonly) { |
| 1845 | flags |= BDRV_O_RDWR; |
| 1846 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1847 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1848 | if (optind != argc - 1) { |
| 1849 | return command_usage(&open_cmd); |
| 1850 | } |
| 1851 | |
| 1852 | return openfile(argv[optind], flags, growable); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1853 | } |
| 1854 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1855 | static int init_args_command(int index) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1856 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1857 | /* only one device allowed so far */ |
| 1858 | if (index >= 1) { |
| 1859 | return 0; |
| 1860 | } |
| 1861 | return ++index; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1862 | } |
| 1863 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1864 | static int init_check_command(const cmdinfo_t *ct) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1865 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1866 | if (ct->flags & CMD_FLAG_GLOBAL) { |
| 1867 | return 1; |
| 1868 | } |
| 1869 | if (!(ct->flags & CMD_NOFILE_OK) && !bs) { |
| 1870 | fprintf(stderr, "no file open, try 'help open'\n"); |
| 1871 | return 0; |
| 1872 | } |
| 1873 | return 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1874 | } |
| 1875 | |
| 1876 | static void usage(const char *name) |
| 1877 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1878 | printf( |
Christoph Hellwig | 9a2d77a | 2010-01-20 18:13:42 +0100 | [diff] [blame] | 1879 | "Usage: %s [-h] [-V] [-rsnm] [-c cmd] ... [file]\n" |
Stefan Weil | 84844a2 | 2009-06-22 15:08:47 +0200 | [diff] [blame] | 1880 | "QEMU Disk exerciser\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1881 | "\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1882 | " -c, --cmd command to execute\n" |
| 1883 | " -r, --read-only export read-only\n" |
| 1884 | " -s, --snapshot use snapshot file\n" |
| 1885 | " -n, --nocache disable host cache\n" |
Christoph Hellwig | 1db6947 | 2009-07-15 23:11:21 +0200 | [diff] [blame] | 1886 | " -g, --growable allow file to grow (only applies to protocols)\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1887 | " -m, --misalign misalign allocations for O_DIRECT\n" |
Christoph Hellwig | 5c6c3a6 | 2009-08-20 16:58:35 +0200 | [diff] [blame] | 1888 | " -k, --native-aio use kernel AIO implementation (on Linux only)\n" |
Kevin Wolf | 592fa07 | 2012-04-18 12:07:39 +0200 | [diff] [blame] | 1889 | " -t, --cache=MODE use the given cache mode for the image\n" |
Stefan Hajnoczi | d7bb72c | 2012-03-12 16:36:07 +0000 | [diff] [blame] | 1890 | " -T, --trace FILE enable trace events listed in the given file\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1891 | " -h, --help display this help and exit\n" |
| 1892 | " -V, --version output version information and exit\n" |
| 1893 | "\n", |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1894 | name); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1895 | } |
| 1896 | |
| 1897 | |
| 1898 | int main(int argc, char **argv) |
| 1899 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1900 | int readonly = 0; |
| 1901 | int growable = 0; |
Kevin Wolf | 592fa07 | 2012-04-18 12:07:39 +0200 | [diff] [blame] | 1902 | const char *sopt = "hVc:rsnmgkt:T:"; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1903 | const struct option lopt[] = { |
| 1904 | { "help", 0, NULL, 'h' }, |
| 1905 | { "version", 0, NULL, 'V' }, |
| 1906 | { "offset", 1, NULL, 'o' }, |
| 1907 | { "cmd", 1, NULL, 'c' }, |
| 1908 | { "read-only", 0, NULL, 'r' }, |
| 1909 | { "snapshot", 0, NULL, 's' }, |
| 1910 | { "nocache", 0, NULL, 'n' }, |
| 1911 | { "misalign", 0, NULL, 'm' }, |
| 1912 | { "growable", 0, NULL, 'g' }, |
| 1913 | { "native-aio", 0, NULL, 'k' }, |
Kevin Wolf | 592fa07 | 2012-04-18 12:07:39 +0200 | [diff] [blame] | 1914 | { "cache", 1, NULL, 't' }, |
Stefan Hajnoczi | d7bb72c | 2012-03-12 16:36:07 +0000 | [diff] [blame] | 1915 | { "trace", 1, NULL, 'T' }, |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1916 | { NULL, 0, NULL, 0 } |
| 1917 | }; |
| 1918 | int c; |
| 1919 | int opt_index = 0; |
| 1920 | int flags = 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1921 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1922 | progname = basename(argv[0]); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1923 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1924 | while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) { |
| 1925 | switch (c) { |
| 1926 | case 's': |
| 1927 | flags |= BDRV_O_SNAPSHOT; |
| 1928 | break; |
| 1929 | case 'n': |
| 1930 | flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB; |
| 1931 | break; |
| 1932 | case 'c': |
| 1933 | add_user_command(optarg); |
| 1934 | break; |
| 1935 | case 'r': |
| 1936 | readonly = 1; |
| 1937 | break; |
| 1938 | case 'm': |
| 1939 | misalign = 1; |
| 1940 | break; |
| 1941 | case 'g': |
| 1942 | growable = 1; |
| 1943 | break; |
| 1944 | case 'k': |
| 1945 | flags |= BDRV_O_NATIVE_AIO; |
| 1946 | break; |
Kevin Wolf | 592fa07 | 2012-04-18 12:07:39 +0200 | [diff] [blame] | 1947 | case 't': |
| 1948 | if (bdrv_parse_cache_flags(optarg, &flags) < 0) { |
| 1949 | error_report("Invalid cache option: %s", optarg); |
| 1950 | exit(1); |
| 1951 | } |
| 1952 | break; |
Stefan Hajnoczi | d7bb72c | 2012-03-12 16:36:07 +0000 | [diff] [blame] | 1953 | case 'T': |
| 1954 | if (!trace_backend_init(optarg, NULL)) { |
| 1955 | exit(1); /* error message will have been printed */ |
| 1956 | } |
| 1957 | break; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1958 | case 'V': |
| 1959 | printf("%s version %s\n", progname, VERSION); |
| 1960 | exit(0); |
| 1961 | case 'h': |
| 1962 | usage(progname); |
| 1963 | exit(0); |
| 1964 | default: |
| 1965 | usage(progname); |
| 1966 | exit(1); |
Naphtali Sprei | f5edb01 | 2010-01-17 16:48:13 +0200 | [diff] [blame] | 1967 | } |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1968 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1969 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1970 | if ((argc - optind) > 1) { |
| 1971 | usage(progname); |
| 1972 | exit(1); |
| 1973 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1974 | |
Zhi Yong Wu | a57d114 | 2012-02-19 22:24:59 +0800 | [diff] [blame] | 1975 | qemu_init_main_loop(); |
Paolo Bonzini | 2592c59 | 2012-11-03 18:10:17 +0100 | [diff] [blame] | 1976 | bdrv_init(); |
Zhi Yong Wu | a57d114 | 2012-02-19 22:24:59 +0800 | [diff] [blame] | 1977 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1978 | /* initialize commands */ |
| 1979 | quit_init(); |
| 1980 | help_init(); |
| 1981 | add_command(&open_cmd); |
| 1982 | add_command(&close_cmd); |
| 1983 | add_command(&read_cmd); |
| 1984 | add_command(&readv_cmd); |
| 1985 | add_command(&write_cmd); |
| 1986 | add_command(&writev_cmd); |
| 1987 | add_command(&multiwrite_cmd); |
| 1988 | add_command(&aio_read_cmd); |
| 1989 | add_command(&aio_write_cmd); |
| 1990 | add_command(&aio_flush_cmd); |
| 1991 | add_command(&flush_cmd); |
| 1992 | add_command(&truncate_cmd); |
| 1993 | add_command(&length_cmd); |
| 1994 | add_command(&info_cmd); |
| 1995 | add_command(&discard_cmd); |
| 1996 | add_command(&alloc_cmd); |
| 1997 | add_command(&map_cmd); |
Kevin Wolf | 41c695c | 2012-12-06 14:32:58 +0100 | [diff] [blame] | 1998 | add_command(&break_cmd); |
| 1999 | add_command(&resume_cmd); |
| 2000 | add_command(&wait_break_cmd); |
Stefan Hajnoczi | e01c30d | 2012-07-27 09:05:23 +0100 | [diff] [blame] | 2001 | add_command(&abort_cmd); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 2002 | |
| 2003 | add_args_command(init_args_command); |
| 2004 | add_check_command(init_check_command); |
| 2005 | |
| 2006 | /* open the device */ |
| 2007 | if (!readonly) { |
| 2008 | flags |= BDRV_O_RDWR; |
| 2009 | } |
| 2010 | |
| 2011 | if ((argc - optind) == 1) { |
| 2012 | openfile(argv[optind], flags, growable); |
| 2013 | } |
| 2014 | command_loop(); |
| 2015 | |
| 2016 | /* |
Stefan Hajnoczi | 922453b | 2011-11-30 12:23:43 +0000 | [diff] [blame] | 2017 | * Make sure all outstanding requests complete before the program exits. |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 2018 | */ |
Stefan Hajnoczi | 922453b | 2011-11-30 12:23:43 +0000 | [diff] [blame] | 2019 | bdrv_drain_all(); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 2020 | |
| 2021 | if (bs) { |
Stefan Hajnoczi | b465785 | 2011-10-27 10:54:26 +0100 | [diff] [blame] | 2022 | bdrv_delete(bs); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 2023 | } |
| 2024 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 2025 | } |