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" |
| 18 | #include "block_int.h" |
| 19 | #include "cmd.h" |
| 20 | |
| 21 | #define VERSION "0.0.1" |
| 22 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 23 | #define CMD_NOFILE_OK 0x01 |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 24 | |
| 25 | char *progname; |
| 26 | static BlockDriverState *bs; |
| 27 | |
| 28 | static int misalign; |
| 29 | |
| 30 | /* |
Christoph Hellwig | cf070d7 | 2009-07-20 01:19:25 +0200 | [diff] [blame] | 31 | * Parse the pattern argument to various sub-commands. |
| 32 | * |
| 33 | * Because the pattern is used as an argument to memset it must evaluate |
| 34 | * to an unsigned integer that fits into a single byte. |
| 35 | */ |
| 36 | static int parse_pattern(const char *arg) |
| 37 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 38 | char *endptr = NULL; |
| 39 | long pattern; |
Christoph Hellwig | cf070d7 | 2009-07-20 01:19:25 +0200 | [diff] [blame] | 40 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 41 | pattern = strtol(arg, &endptr, 0); |
| 42 | if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { |
| 43 | printf("%s is not a valid pattern byte\n", arg); |
| 44 | return -1; |
| 45 | } |
Christoph Hellwig | cf070d7 | 2009-07-20 01:19:25 +0200 | [diff] [blame] | 46 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 47 | return pattern; |
Christoph Hellwig | cf070d7 | 2009-07-20 01:19:25 +0200 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | /* |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 51 | * Memory allocation helpers. |
| 52 | * |
| 53 | * Make sure memory is aligned by default, or purposefully misaligned if |
| 54 | * that is specified on the command line. |
| 55 | */ |
| 56 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 57 | #define MISALIGN_OFFSET 16 |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 58 | static void *qemu_io_alloc(size_t len, int pattern) |
| 59 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 60 | void *buf; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 61 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 62 | if (misalign) { |
| 63 | len += MISALIGN_OFFSET; |
| 64 | } |
| 65 | buf = qemu_blockalign(bs, len); |
| 66 | memset(buf, pattern, len); |
| 67 | if (misalign) { |
| 68 | buf += MISALIGN_OFFSET; |
| 69 | } |
| 70 | return buf; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 71 | } |
| 72 | |
| 73 | static void qemu_io_free(void *p) |
| 74 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 75 | if (misalign) { |
| 76 | p -= MISALIGN_OFFSET; |
| 77 | } |
| 78 | qemu_vfree(p); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 79 | } |
| 80 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 81 | static void dump_buffer(const void *buffer, int64_t offset, int len) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 82 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 83 | int i, j; |
| 84 | const uint8_t *p; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 85 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 86 | for (i = 0, p = buffer; i < len; i += 16) { |
| 87 | const uint8_t *s = p; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 88 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 89 | printf("%08" PRIx64 ": ", offset + i); |
| 90 | for (j = 0; j < 16 && i + j < len; j++, p++) { |
| 91 | printf("%02x ", *p); |
| 92 | } |
| 93 | printf(" "); |
| 94 | for (j = 0; j < 16 && i + j < len; j++, s++) { |
| 95 | if (isalnum(*s)) { |
| 96 | printf("%c", *s); |
| 97 | } else { |
| 98 | printf("."); |
| 99 | } |
| 100 | } |
| 101 | printf("\n"); |
| 102 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 103 | } |
| 104 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 105 | static void print_report(const char *op, struct timeval *t, int64_t offset, |
| 106 | int count, int total, int cnt, int Cflag) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 107 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 108 | char s1[64], s2[64], ts[64]; |
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 | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); |
| 111 | if (!Cflag) { |
| 112 | cvtstr((double)total, s1, sizeof(s1)); |
| 113 | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); |
| 114 | printf("%s %d/%d bytes at offset %" PRId64 "\n", |
| 115 | op, total, count, offset); |
| 116 | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n", |
| 117 | s1, cnt, ts, s2, tdiv((double)cnt, *t)); |
| 118 | } else {/* bytes,ops,time,bytes/sec,ops/sec */ |
| 119 | printf("%d,%d,%s,%.3f,%.3f\n", |
| 120 | total, cnt, ts, |
| 121 | tdiv((double)total, *t), |
| 122 | tdiv((double)cnt, *t)); |
| 123 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 124 | } |
| 125 | |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 126 | /* |
| 127 | * Parse multiple length statements for vectored I/O, and construct an I/O |
| 128 | * vector matching it. |
| 129 | */ |
| 130 | static void * |
| 131 | create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern) |
| 132 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 133 | size_t *sizes = calloc(nr_iov, sizeof(size_t)); |
| 134 | size_t count = 0; |
| 135 | void *buf = NULL; |
| 136 | void *p; |
| 137 | int i; |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 138 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 139 | for (i = 0; i < nr_iov; i++) { |
| 140 | char *arg = argv[i]; |
| 141 | int64_t len; |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 142 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 143 | len = cvtnum(arg); |
| 144 | if (len < 0) { |
| 145 | printf("non-numeric length argument -- %s\n", arg); |
| 146 | goto fail; |
| 147 | } |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 148 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 149 | /* should be SIZE_T_MAX, but that doesn't exist */ |
| 150 | if (len > INT_MAX) { |
| 151 | printf("too large length argument -- %s\n", arg); |
| 152 | goto fail; |
| 153 | } |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 154 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 155 | if (len & 0x1ff) { |
| 156 | printf("length argument %" PRId64 |
| 157 | " is not sector aligned\n", len); |
| 158 | goto fail; |
| 159 | } |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 160 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 161 | sizes[i] = len; |
| 162 | count += len; |
| 163 | } |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 164 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 165 | qemu_iovec_init(qiov, nr_iov); |
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 | buf = p = qemu_io_alloc(count, pattern); |
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 | for (i = 0; i < nr_iov; i++) { |
| 170 | qemu_iovec_add(qiov, p, sizes[i]); |
| 171 | p += sizes[i]; |
| 172 | } |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 173 | |
Kevin Wolf | 40a0d7c | 2009-11-18 10:42:59 +0100 | [diff] [blame] | 174 | fail: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 175 | free(sizes); |
| 176 | return buf; |
Christoph Hellwig | cf57298 | 2009-07-10 13:33:42 +0200 | [diff] [blame] | 177 | } |
| 178 | |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 179 | static int do_read(char *buf, int64_t offset, int count, int *total) |
| 180 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 181 | int ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 182 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 183 | ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
| 184 | if (ret < 0) { |
| 185 | return ret; |
| 186 | } |
| 187 | *total = count; |
| 188 | return 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | static int do_write(char *buf, int64_t offset, int count, int *total) |
| 192 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 193 | int ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 194 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 195 | ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
| 196 | if (ret < 0) { |
| 197 | return ret; |
| 198 | } |
| 199 | *total = count; |
| 200 | return 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 201 | } |
| 202 | |
| 203 | static int do_pread(char *buf, int64_t offset, int count, int *total) |
| 204 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 205 | *total = bdrv_pread(bs, offset, (uint8_t *)buf, count); |
| 206 | if (*total < 0) { |
| 207 | return *total; |
| 208 | } |
| 209 | return 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | static int do_pwrite(char *buf, int64_t offset, int count, int *total) |
| 213 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 214 | *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count); |
| 215 | if (*total < 0) { |
| 216 | return *total; |
| 217 | } |
| 218 | return 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 219 | } |
| 220 | |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 221 | static int do_load_vmstate(char *buf, int64_t offset, int count, int *total) |
| 222 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 223 | *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count); |
| 224 | if (*total < 0) { |
| 225 | return *total; |
| 226 | } |
| 227 | return 1; |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 228 | } |
| 229 | |
| 230 | static int do_save_vmstate(char *buf, int64_t offset, int count, int *total) |
| 231 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 232 | *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count); |
| 233 | if (*total < 0) { |
| 234 | return *total; |
| 235 | } |
| 236 | return 1; |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 237 | } |
| 238 | |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 239 | #define NOT_DONE 0x7fffffff |
| 240 | static void aio_rw_done(void *opaque, int ret) |
| 241 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 242 | *(int *)opaque = ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 243 | } |
| 244 | |
| 245 | static int do_aio_readv(QEMUIOVector *qiov, int64_t offset, int *total) |
| 246 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 247 | BlockDriverAIOCB *acb; |
| 248 | int async_ret = NOT_DONE; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 249 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 250 | acb = bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9, |
| 251 | aio_rw_done, &async_ret); |
| 252 | if (!acb) { |
| 253 | return -EIO; |
| 254 | } |
| 255 | while (async_ret == NOT_DONE) { |
| 256 | qemu_aio_wait(); |
| 257 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 258 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 259 | *total = qiov->size; |
| 260 | return async_ret < 0 ? async_ret : 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 261 | } |
| 262 | |
| 263 | static int do_aio_writev(QEMUIOVector *qiov, int64_t offset, int *total) |
| 264 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 265 | BlockDriverAIOCB *acb; |
| 266 | int async_ret = NOT_DONE; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 267 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 268 | acb = bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9, |
| 269 | aio_rw_done, &async_ret); |
| 270 | if (!acb) { |
| 271 | return -EIO; |
| 272 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 273 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 274 | while (async_ret == NOT_DONE) { |
| 275 | qemu_aio_wait(); |
| 276 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 277 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 278 | *total = qiov->size; |
| 279 | return async_ret < 0 ? async_ret : 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 280 | } |
| 281 | |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 282 | struct multiwrite_async_ret { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 283 | int num_done; |
| 284 | int error; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 285 | }; |
| 286 | |
| 287 | static void multiwrite_cb(void *opaque, int ret) |
| 288 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 289 | struct multiwrite_async_ret *async_ret = opaque; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 290 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 291 | async_ret->num_done++; |
| 292 | if (ret < 0) { |
| 293 | async_ret->error = ret; |
| 294 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 295 | } |
| 296 | |
| 297 | static int do_aio_multiwrite(BlockRequest* reqs, int num_reqs, int *total) |
| 298 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 299 | int i, ret; |
| 300 | struct multiwrite_async_ret async_ret = { |
| 301 | .num_done = 0, |
| 302 | .error = 0, |
| 303 | }; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 304 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 305 | *total = 0; |
| 306 | for (i = 0; i < num_reqs; i++) { |
| 307 | reqs[i].cb = multiwrite_cb; |
| 308 | reqs[i].opaque = &async_ret; |
| 309 | *total += reqs[i].qiov->size; |
| 310 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 311 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 312 | ret = bdrv_aio_multiwrite(bs, reqs, num_reqs); |
| 313 | if (ret < 0) { |
| 314 | return ret; |
| 315 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 316 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 317 | while (async_ret.num_done < num_reqs) { |
| 318 | qemu_aio_wait(); |
| 319 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 320 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 321 | return async_ret.error < 0 ? async_ret.error : 1; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 322 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 323 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 324 | static void read_help(void) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 325 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 326 | printf( |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 327 | "\n" |
| 328 | " reads a range of bytes from the given offset\n" |
| 329 | "\n" |
| 330 | " Example:\n" |
| 331 | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n" |
| 332 | "\n" |
| 333 | " Reads a segment of the currently open file, optionally dumping it to the\n" |
| 334 | " standard output stream (with -v option) for subsequent inspection.\n" |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 335 | " -b, -- read from the VM state rather than the virtual disk\n" |
Kevin Wolf | d9654a5 | 2009-04-23 15:11:13 +0200 | [diff] [blame] | 336 | " -C, -- report statistics in a machine parsable format\n" |
| 337 | " -l, -- length for pattern verification (only with -P)\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 338 | " -p, -- use bdrv_pread to read the file\n" |
aliguori | c48101a | 2009-04-18 15:36:23 +0000 | [diff] [blame] | 339 | " -P, -- use a pattern to verify read data\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 340 | " -q, -- quiet mode, do not show I/O statistics\n" |
Kevin Wolf | d9654a5 | 2009-04-23 15:11:13 +0200 | [diff] [blame] | 341 | " -s, -- start offset for pattern verification (only with -P)\n" |
| 342 | " -v, -- dump buffer to standard output\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 343 | "\n"); |
| 344 | } |
| 345 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 346 | static int read_f(int argc, char **argv); |
| 347 | |
| 348 | static const cmdinfo_t read_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 349 | .name = "read", |
| 350 | .altname = "r", |
| 351 | .cfunc = read_f, |
| 352 | .argmin = 2, |
| 353 | .argmax = -1, |
| 354 | .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len", |
| 355 | .oneline = "reads a number of bytes at a specified offset", |
| 356 | .help = read_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 357 | }; |
| 358 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 359 | static int read_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 360 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 361 | struct timeval t1, t2; |
| 362 | int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; |
| 363 | int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; |
| 364 | int c, cnt; |
| 365 | char *buf; |
| 366 | int64_t offset; |
| 367 | int count; |
| 368 | /* Some compilers get confused and warn if this is not initialized. */ |
| 369 | int total = 0; |
| 370 | int pattern = 0, pattern_offset = 0, pattern_count = 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 371 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 372 | while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) { |
| 373 | switch (c) { |
| 374 | case 'b': |
| 375 | bflag = 1; |
| 376 | break; |
| 377 | case 'C': |
| 378 | Cflag = 1; |
| 379 | break; |
| 380 | case 'l': |
| 381 | lflag = 1; |
| 382 | pattern_count = cvtnum(optarg); |
| 383 | if (pattern_count < 0) { |
| 384 | printf("non-numeric length argument -- %s\n", optarg); |
| 385 | return 0; |
| 386 | } |
| 387 | break; |
| 388 | case 'p': |
| 389 | pflag = 1; |
| 390 | break; |
| 391 | case 'P': |
| 392 | Pflag = 1; |
| 393 | pattern = parse_pattern(optarg); |
| 394 | if (pattern < 0) { |
| 395 | return 0; |
| 396 | } |
| 397 | break; |
| 398 | case 'q': |
| 399 | qflag = 1; |
| 400 | break; |
| 401 | case 's': |
| 402 | sflag = 1; |
| 403 | pattern_offset = cvtnum(optarg); |
| 404 | if (pattern_offset < 0) { |
| 405 | printf("non-numeric length argument -- %s\n", optarg); |
| 406 | return 0; |
| 407 | } |
| 408 | break; |
| 409 | case 'v': |
| 410 | vflag = 1; |
| 411 | break; |
| 412 | default: |
| 413 | return command_usage(&read_cmd); |
| 414 | } |
| 415 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 416 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 417 | if (optind != argc - 2) { |
| 418 | return command_usage(&read_cmd); |
| 419 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 420 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 421 | if (bflag && pflag) { |
| 422 | printf("-b and -p cannot be specified at the same time\n"); |
| 423 | return 0; |
| 424 | } |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 425 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 426 | offset = cvtnum(argv[optind]); |
| 427 | if (offset < 0) { |
| 428 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 429 | return 0; |
| 430 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 431 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 432 | optind++; |
| 433 | count = cvtnum(argv[optind]); |
| 434 | if (count < 0) { |
| 435 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 436 | return 0; |
| 437 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 438 | |
Kevin Wolf | d9654a5 | 2009-04-23 15:11:13 +0200 | [diff] [blame] | 439 | if (!Pflag && (lflag || sflag)) { |
| 440 | return command_usage(&read_cmd); |
| 441 | } |
| 442 | |
| 443 | if (!lflag) { |
| 444 | pattern_count = count - pattern_offset; |
| 445 | } |
| 446 | |
| 447 | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { |
| 448 | printf("pattern verfication range exceeds end of read data\n"); |
| 449 | return 0; |
| 450 | } |
| 451 | |
Devin Nakamura | 5afc8b3 | 2011-07-11 11:20:25 -0400 | [diff] [blame] | 452 | if (!pflag) { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 453 | if (offset & 0x1ff) { |
| 454 | printf("offset %" PRId64 " is not sector aligned\n", |
| 455 | offset); |
| 456 | return 0; |
| 457 | } |
| 458 | if (count & 0x1ff) { |
| 459 | printf("count %d is not sector aligned\n", |
| 460 | count); |
| 461 | return 0; |
| 462 | } |
Devin Nakamura | 5afc8b3 | 2011-07-11 11:20:25 -0400 | [diff] [blame] | 463 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 464 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 465 | buf = qemu_io_alloc(count, 0xab); |
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 | gettimeofday(&t1, NULL); |
| 468 | if (pflag) { |
| 469 | cnt = do_pread(buf, offset, count, &total); |
| 470 | } else if (bflag) { |
| 471 | cnt = do_load_vmstate(buf, offset, count, &total); |
| 472 | } else { |
| 473 | cnt = do_read(buf, offset, count, &total); |
| 474 | } |
| 475 | gettimeofday(&t2, NULL); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 476 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 477 | if (cnt < 0) { |
| 478 | printf("read failed: %s\n", strerror(-cnt)); |
| 479 | goto out; |
| 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 | if (Pflag) { |
| 483 | void *cmp_buf = malloc(pattern_count); |
| 484 | memset(cmp_buf, pattern, pattern_count); |
| 485 | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) { |
| 486 | printf("Pattern verification failed at offset %" |
| 487 | PRId64 ", %d bytes\n", |
| 488 | offset + pattern_offset, pattern_count); |
| 489 | } |
| 490 | free(cmp_buf); |
| 491 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 492 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 493 | if (qflag) { |
| 494 | goto out; |
| 495 | } |
aliguori | c48101a | 2009-04-18 15:36:23 +0000 | [diff] [blame] | 496 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 497 | if (vflag) { |
| 498 | dump_buffer(buf, offset, count); |
| 499 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 500 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 501 | /* Finally, report back -- -C gives a parsable format */ |
| 502 | t2 = tsub(t2, t1); |
| 503 | print_report("read", &t2, offset, count, total, cnt, Cflag); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 504 | |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 505 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 506 | qemu_io_free(buf); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 507 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 508 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 509 | } |
| 510 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 511 | static void readv_help(void) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 512 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 513 | printf( |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 514 | "\n" |
| 515 | " reads a range of bytes from the given offset into multiple buffers\n" |
| 516 | "\n" |
| 517 | " Example:\n" |
| 518 | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" |
| 519 | "\n" |
| 520 | " Reads a segment of the currently open file, optionally dumping it to the\n" |
| 521 | " standard output stream (with -v option) for subsequent inspection.\n" |
| 522 | " Uses multiple iovec buffers if more than one byte range is specified.\n" |
| 523 | " -C, -- report statistics in a machine parsable format\n" |
aliguori | c48101a | 2009-04-18 15:36:23 +0000 | [diff] [blame] | 524 | " -P, -- use a pattern to verify read data\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 525 | " -v, -- dump buffer to standard output\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 526 | " -q, -- quiet mode, do not show I/O statistics\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 527 | "\n"); |
| 528 | } |
| 529 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 530 | static int readv_f(int argc, char **argv); |
| 531 | |
| 532 | static const cmdinfo_t readv_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 533 | .name = "readv", |
| 534 | .cfunc = readv_f, |
| 535 | .argmin = 2, |
| 536 | .argmax = -1, |
| 537 | .args = "[-Cqv] [-P pattern ] off len [len..]", |
| 538 | .oneline = "reads a number of bytes at a specified offset", |
| 539 | .help = readv_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 540 | }; |
| 541 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 542 | static int readv_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 543 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 544 | struct timeval t1, t2; |
| 545 | int Cflag = 0, qflag = 0, vflag = 0; |
| 546 | int c, cnt; |
| 547 | char *buf; |
| 548 | int64_t offset; |
| 549 | /* Some compilers get confused and warn if this is not initialized. */ |
| 550 | int total = 0; |
| 551 | int nr_iov; |
| 552 | QEMUIOVector qiov; |
| 553 | int pattern = 0; |
| 554 | int Pflag = 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 555 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 556 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
| 557 | switch (c) { |
| 558 | case 'C': |
| 559 | Cflag = 1; |
| 560 | break; |
| 561 | case 'P': |
| 562 | Pflag = 1; |
| 563 | pattern = parse_pattern(optarg); |
| 564 | if (pattern < 0) { |
| 565 | return 0; |
| 566 | } |
| 567 | break; |
| 568 | case 'q': |
| 569 | qflag = 1; |
| 570 | break; |
| 571 | case 'v': |
| 572 | vflag = 1; |
| 573 | break; |
| 574 | default: |
| 575 | return command_usage(&readv_cmd); |
| 576 | } |
| 577 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 578 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 579 | if (optind > argc - 2) { |
| 580 | return command_usage(&readv_cmd); |
| 581 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 582 | |
| 583 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 584 | offset = cvtnum(argv[optind]); |
| 585 | if (offset < 0) { |
| 586 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 587 | return 0; |
| 588 | } |
| 589 | optind++; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 590 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 591 | if (offset & 0x1ff) { |
| 592 | printf("offset %" PRId64 " is not sector aligned\n", |
| 593 | offset); |
| 594 | return 0; |
| 595 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 596 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 597 | nr_iov = argc - optind; |
| 598 | buf = create_iovec(&qiov, &argv[optind], nr_iov, 0xab); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 599 | if (buf == NULL) { |
| 600 | return 0; |
| 601 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 602 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 603 | gettimeofday(&t1, NULL); |
| 604 | cnt = do_aio_readv(&qiov, offset, &total); |
| 605 | gettimeofday(&t2, NULL); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 606 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 607 | if (cnt < 0) { |
| 608 | printf("readv failed: %s\n", strerror(-cnt)); |
| 609 | goto out; |
| 610 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 611 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 612 | if (Pflag) { |
| 613 | void *cmp_buf = malloc(qiov.size); |
| 614 | memset(cmp_buf, pattern, qiov.size); |
| 615 | if (memcmp(buf, cmp_buf, qiov.size)) { |
| 616 | printf("Pattern verification failed at offset %" |
| 617 | PRId64 ", %zd bytes\n", offset, qiov.size); |
| 618 | } |
| 619 | free(cmp_buf); |
| 620 | } |
aliguori | c48101a | 2009-04-18 15:36:23 +0000 | [diff] [blame] | 621 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 622 | if (qflag) { |
| 623 | goto out; |
| 624 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 625 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 626 | if (vflag) { |
| 627 | dump_buffer(buf, offset, qiov.size); |
| 628 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 629 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 630 | /* Finally, report back -- -C gives a parsable format */ |
| 631 | t2 = tsub(t2, t1); |
| 632 | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 633 | |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 634 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 635 | qemu_io_free(buf); |
| 636 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 637 | } |
| 638 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 639 | static void write_help(void) |
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 | printf( |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 642 | "\n" |
| 643 | " writes a range of bytes from the given offset\n" |
| 644 | "\n" |
| 645 | " Example:\n" |
| 646 | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n" |
| 647 | "\n" |
| 648 | " Writes into a segment of the currently open file, using a buffer\n" |
| 649 | " filled with a set pattern (0xcdcdcdcd).\n" |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 650 | " -b, -- write to the VM state rather than the virtual disk\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 651 | " -p, -- use bdrv_pwrite to write the file\n" |
| 652 | " -P, -- use different pattern to fill file\n" |
| 653 | " -C, -- report statistics in a machine parsable format\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 654 | " -q, -- quiet mode, do not show I/O statistics\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 655 | "\n"); |
| 656 | } |
| 657 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 658 | static int write_f(int argc, char **argv); |
| 659 | |
| 660 | static const cmdinfo_t write_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 661 | .name = "write", |
| 662 | .altname = "w", |
| 663 | .cfunc = write_f, |
| 664 | .argmin = 2, |
| 665 | .argmax = -1, |
| 666 | .args = "[-abCpq] [-P pattern ] off len", |
| 667 | .oneline = "writes a number of bytes at a specified offset", |
| 668 | .help = write_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 669 | }; |
| 670 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 671 | static int write_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 672 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 673 | struct timeval t1, t2; |
| 674 | int Cflag = 0, pflag = 0, qflag = 0, bflag = 0; |
| 675 | int c, cnt; |
| 676 | char *buf; |
| 677 | int64_t offset; |
| 678 | int count; |
| 679 | /* Some compilers get confused and warn if this is not initialized. */ |
| 680 | int total = 0; |
| 681 | int pattern = 0xcd; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 682 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 683 | while ((c = getopt(argc, argv, "bCpP:q")) != EOF) { |
| 684 | switch (c) { |
| 685 | case 'b': |
| 686 | bflag = 1; |
| 687 | break; |
| 688 | case 'C': |
| 689 | Cflag = 1; |
| 690 | break; |
| 691 | case 'p': |
| 692 | pflag = 1; |
| 693 | break; |
| 694 | case 'P': |
| 695 | pattern = parse_pattern(optarg); |
| 696 | if (pattern < 0) { |
| 697 | return 0; |
| 698 | } |
| 699 | break; |
| 700 | case 'q': |
| 701 | qflag = 1; |
| 702 | break; |
| 703 | default: |
| 704 | return command_usage(&write_cmd); |
| 705 | } |
| 706 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 707 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 708 | if (optind != argc - 2) { |
| 709 | return command_usage(&write_cmd); |
| 710 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 711 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 712 | if (bflag && pflag) { |
| 713 | printf("-b and -p cannot be specified at the same time\n"); |
| 714 | return 0; |
| 715 | } |
Kevin Wolf | ca94dbc | 2009-07-15 12:06:58 +0200 | [diff] [blame] | 716 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 717 | offset = cvtnum(argv[optind]); |
| 718 | if (offset < 0) { |
| 719 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 720 | return 0; |
| 721 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 722 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 723 | optind++; |
| 724 | count = cvtnum(argv[optind]); |
| 725 | if (count < 0) { |
| 726 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 727 | return 0; |
| 728 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 729 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 730 | if (!pflag) { |
| 731 | if (offset & 0x1ff) { |
| 732 | printf("offset %" PRId64 " is not sector aligned\n", |
| 733 | offset); |
| 734 | return 0; |
| 735 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 736 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 737 | if (count & 0x1ff) { |
| 738 | printf("count %d is not sector aligned\n", |
| 739 | count); |
| 740 | return 0; |
| 741 | } |
| 742 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 743 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 744 | buf = qemu_io_alloc(count, pattern); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 745 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 746 | gettimeofday(&t1, NULL); |
| 747 | if (pflag) { |
| 748 | cnt = do_pwrite(buf, offset, count, &total); |
| 749 | } else if (bflag) { |
| 750 | cnt = do_save_vmstate(buf, offset, count, &total); |
| 751 | } else { |
| 752 | cnt = do_write(buf, offset, count, &total); |
| 753 | } |
| 754 | gettimeofday(&t2, NULL); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 755 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 756 | if (cnt < 0) { |
| 757 | printf("write failed: %s\n", strerror(-cnt)); |
| 758 | goto out; |
| 759 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 760 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 761 | if (qflag) { |
| 762 | goto out; |
| 763 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 764 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 765 | /* Finally, report back -- -C gives a parsable format */ |
| 766 | t2 = tsub(t2, t1); |
| 767 | print_report("wrote", &t2, offset, count, total, cnt, Cflag); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 768 | |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 769 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 770 | qemu_io_free(buf); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 771 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 772 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 773 | } |
| 774 | |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 775 | static void |
| 776 | writev_help(void) |
| 777 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 778 | printf( |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 779 | "\n" |
| 780 | " writes a range of bytes from the given offset source from multiple buffers\n" |
| 781 | "\n" |
| 782 | " Example:\n" |
| 783 | " 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" |
| 784 | "\n" |
| 785 | " Writes into a segment of the currently open file, using a buffer\n" |
| 786 | " filled with a set pattern (0xcdcdcdcd).\n" |
| 787 | " -P, -- use different pattern to fill file\n" |
| 788 | " -C, -- report statistics in a machine parsable format\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 789 | " -q, -- quiet mode, do not show I/O statistics\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 790 | "\n"); |
| 791 | } |
| 792 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 793 | static int writev_f(int argc, char **argv); |
| 794 | |
| 795 | static const cmdinfo_t writev_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 796 | .name = "writev", |
| 797 | .cfunc = writev_f, |
| 798 | .argmin = 2, |
| 799 | .argmax = -1, |
| 800 | .args = "[-Cq] [-P pattern ] off len [len..]", |
| 801 | .oneline = "writes a number of bytes at a specified offset", |
| 802 | .help = writev_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 803 | }; |
| 804 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 805 | static int writev_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 806 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 807 | struct timeval t1, t2; |
| 808 | int Cflag = 0, qflag = 0; |
| 809 | int c, cnt; |
| 810 | char *buf; |
| 811 | int64_t offset; |
| 812 | /* Some compilers get confused and warn if this is not initialized. */ |
| 813 | int total = 0; |
| 814 | int nr_iov; |
| 815 | int pattern = 0xcd; |
| 816 | QEMUIOVector qiov; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 817 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 818 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
| 819 | switch (c) { |
| 820 | case 'C': |
| 821 | Cflag = 1; |
| 822 | break; |
| 823 | case 'q': |
| 824 | qflag = 1; |
| 825 | break; |
| 826 | case 'P': |
| 827 | pattern = parse_pattern(optarg); |
| 828 | if (pattern < 0) { |
| 829 | return 0; |
| 830 | } |
| 831 | break; |
| 832 | default: |
| 833 | return command_usage(&writev_cmd); |
| 834 | } |
| 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 | if (optind > argc - 2) { |
| 838 | return command_usage(&writev_cmd); |
| 839 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 840 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 841 | offset = cvtnum(argv[optind]); |
| 842 | if (offset < 0) { |
| 843 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 844 | return 0; |
| 845 | } |
| 846 | optind++; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 847 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 848 | if (offset & 0x1ff) { |
| 849 | printf("offset %" PRId64 " is not sector aligned\n", |
| 850 | offset); |
| 851 | return 0; |
| 852 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 853 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 854 | nr_iov = argc - optind; |
| 855 | buf = create_iovec(&qiov, &argv[optind], nr_iov, pattern); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 856 | if (buf == NULL) { |
| 857 | return 0; |
| 858 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 859 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 860 | gettimeofday(&t1, NULL); |
| 861 | cnt = do_aio_writev(&qiov, offset, &total); |
| 862 | gettimeofday(&t2, NULL); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 863 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 864 | if (cnt < 0) { |
| 865 | printf("writev failed: %s\n", strerror(-cnt)); |
| 866 | goto out; |
| 867 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 868 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 869 | if (qflag) { |
| 870 | goto out; |
| 871 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 872 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 873 | /* Finally, report back -- -C gives a parsable format */ |
| 874 | t2 = tsub(t2, t1); |
| 875 | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag); |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 876 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 877 | qemu_io_free(buf); |
| 878 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 879 | } |
| 880 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 881 | static void multiwrite_help(void) |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 882 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 883 | printf( |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 884 | "\n" |
| 885 | " writes a range of bytes from the given offset source from multiple buffers,\n" |
| 886 | " in a batch of requests that may be merged by qemu\n" |
| 887 | "\n" |
| 888 | " Example:\n" |
Stefan Weil | b2bedb2 | 2011-09-12 22:33:01 +0200 | [diff] [blame] | 889 | " 'multiwrite 512 1k 1k ; 4k 1k'\n" |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 890 | " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n" |
| 891 | "\n" |
| 892 | " Writes into a segment of the currently open file, using a buffer\n" |
| 893 | " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n" |
| 894 | " by one for each request contained in the multiwrite command.\n" |
| 895 | " -P, -- use different pattern to fill file\n" |
| 896 | " -C, -- report statistics in a machine parsable format\n" |
| 897 | " -q, -- quiet mode, do not show I/O statistics\n" |
| 898 | "\n"); |
| 899 | } |
| 900 | |
| 901 | static int multiwrite_f(int argc, char **argv); |
| 902 | |
| 903 | static const cmdinfo_t multiwrite_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 904 | .name = "multiwrite", |
| 905 | .cfunc = multiwrite_f, |
| 906 | .argmin = 2, |
| 907 | .argmax = -1, |
| 908 | .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]", |
| 909 | .oneline = "issues multiple write requests at once", |
| 910 | .help = multiwrite_help, |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 911 | }; |
| 912 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 913 | static int multiwrite_f(int argc, char **argv) |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 914 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 915 | struct timeval t1, t2; |
| 916 | int Cflag = 0, qflag = 0; |
| 917 | int c, cnt; |
| 918 | char **buf; |
| 919 | int64_t offset, first_offset = 0; |
| 920 | /* Some compilers get confused and warn if this is not initialized. */ |
| 921 | int total = 0; |
| 922 | int nr_iov; |
| 923 | int nr_reqs; |
| 924 | int pattern = 0xcd; |
| 925 | QEMUIOVector *qiovs; |
| 926 | int i; |
| 927 | BlockRequest *reqs; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 928 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 929 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
| 930 | switch (c) { |
| 931 | case 'C': |
| 932 | Cflag = 1; |
| 933 | break; |
| 934 | case 'q': |
| 935 | qflag = 1; |
| 936 | break; |
| 937 | case 'P': |
| 938 | pattern = parse_pattern(optarg); |
| 939 | if (pattern < 0) { |
| 940 | return 0; |
| 941 | } |
| 942 | break; |
| 943 | default: |
| 944 | return command_usage(&writev_cmd); |
| 945 | } |
| 946 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 947 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 948 | if (optind > argc - 2) { |
| 949 | return command_usage(&writev_cmd); |
| 950 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 951 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 952 | nr_reqs = 1; |
| 953 | for (i = optind; i < argc; i++) { |
| 954 | if (!strcmp(argv[i], ";")) { |
| 955 | nr_reqs++; |
| 956 | } |
| 957 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 958 | |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 959 | reqs = g_malloc0(nr_reqs * sizeof(*reqs)); |
| 960 | buf = g_malloc0(nr_reqs * sizeof(*buf)); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 961 | qiovs = g_malloc(nr_reqs * sizeof(*qiovs)); |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 962 | |
Kevin Wolf | 67403db | 2011-10-31 11:49:21 +0100 | [diff] [blame] | 963 | for (i = 0; i < nr_reqs && optind < argc; i++) { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 964 | int j; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 965 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 966 | /* Read the offset of the request */ |
| 967 | offset = cvtnum(argv[optind]); |
| 968 | if (offset < 0) { |
| 969 | printf("non-numeric offset argument -- %s\n", argv[optind]); |
Kevin Wolf | 67403db | 2011-10-31 11:49:21 +0100 | [diff] [blame] | 970 | goto out; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 971 | } |
| 972 | optind++; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 973 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 974 | if (offset & 0x1ff) { |
| 975 | printf("offset %lld is not sector aligned\n", |
| 976 | (long long)offset); |
Kevin Wolf | 67403db | 2011-10-31 11:49:21 +0100 | [diff] [blame] | 977 | goto out; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 978 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 979 | |
| 980 | if (i == 0) { |
| 981 | first_offset = offset; |
| 982 | } |
| 983 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 984 | /* Read lengths for qiov entries */ |
| 985 | for (j = optind; j < argc; j++) { |
| 986 | if (!strcmp(argv[j], ";")) { |
| 987 | break; |
| 988 | } |
| 989 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 990 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 991 | nr_iov = j - optind; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 992 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 993 | /* Build request */ |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 994 | buf[i] = create_iovec(&qiovs[i], &argv[optind], nr_iov, pattern); |
| 995 | if (buf[i] == NULL) { |
| 996 | goto out; |
| 997 | } |
| 998 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 999 | reqs[i].qiov = &qiovs[i]; |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1000 | reqs[i].sector = offset >> 9; |
| 1001 | reqs[i].nb_sectors = reqs[i].qiov->size >> 9; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1002 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1003 | optind = j + 1; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1004 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1005 | pattern++; |
| 1006 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1007 | |
Kevin Wolf | 67403db | 2011-10-31 11:49:21 +0100 | [diff] [blame] | 1008 | /* If there were empty requests at the end, ignore them */ |
| 1009 | nr_reqs = i; |
| 1010 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1011 | gettimeofday(&t1, NULL); |
| 1012 | cnt = do_aio_multiwrite(reqs, nr_reqs, &total); |
| 1013 | gettimeofday(&t2, NULL); |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1014 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1015 | if (cnt < 0) { |
| 1016 | printf("aio_multiwrite failed: %s\n", strerror(-cnt)); |
| 1017 | goto out; |
| 1018 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1019 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1020 | if (qflag) { |
| 1021 | goto out; |
| 1022 | } |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1023 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1024 | /* Finally, report back -- -C gives a parsable format */ |
| 1025 | t2 = tsub(t2, t1); |
| 1026 | print_report("wrote", &t2, first_offset, total, total, cnt, Cflag); |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1027 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1028 | for (i = 0; i < nr_reqs; i++) { |
| 1029 | qemu_io_free(buf[i]); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 1030 | if (reqs[i].qiov != NULL) { |
| 1031 | qemu_iovec_destroy(&qiovs[i]); |
| 1032 | } |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1033 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1034 | g_free(buf); |
| 1035 | g_free(reqs); |
| 1036 | g_free(qiovs); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1037 | return 0; |
Kevin Wolf | 776cbbb | 2010-05-21 11:37:26 +0200 | [diff] [blame] | 1038 | } |
| 1039 | |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1040 | struct aio_ctx { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1041 | QEMUIOVector qiov; |
| 1042 | int64_t offset; |
| 1043 | char *buf; |
| 1044 | int qflag; |
| 1045 | int vflag; |
| 1046 | int Cflag; |
| 1047 | int Pflag; |
| 1048 | int pattern; |
| 1049 | struct timeval t1; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1050 | }; |
| 1051 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1052 | static void aio_write_done(void *opaque, int ret) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1053 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1054 | struct aio_ctx *ctx = opaque; |
| 1055 | struct timeval t2; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1056 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1057 | gettimeofday(&t2, NULL); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1058 | |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1059 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1060 | if (ret < 0) { |
| 1061 | printf("aio_write failed: %s\n", strerror(-ret)); |
| 1062 | goto out; |
| 1063 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1064 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1065 | if (ctx->qflag) { |
| 1066 | goto out; |
| 1067 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1068 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1069 | /* Finally, report back -- -C gives a parsable format */ |
| 1070 | t2 = tsub(t2, ctx->t1); |
| 1071 | print_report("wrote", &t2, ctx->offset, ctx->qiov.size, |
| 1072 | ctx->qiov.size, 1, ctx->Cflag); |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 1073 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1074 | qemu_io_free(ctx->buf); |
| 1075 | free(ctx); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1076 | } |
| 1077 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1078 | static void aio_read_done(void *opaque, int ret) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1079 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1080 | struct aio_ctx *ctx = opaque; |
| 1081 | struct timeval t2; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1082 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1083 | gettimeofday(&t2, NULL); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1084 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1085 | if (ret < 0) { |
| 1086 | printf("readv failed: %s\n", strerror(-ret)); |
| 1087 | goto out; |
| 1088 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1089 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1090 | if (ctx->Pflag) { |
| 1091 | void *cmp_buf = malloc(ctx->qiov.size); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1092 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1093 | memset(cmp_buf, ctx->pattern, ctx->qiov.size); |
| 1094 | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) { |
| 1095 | printf("Pattern verification failed at offset %" |
| 1096 | PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size); |
| 1097 | } |
| 1098 | free(cmp_buf); |
| 1099 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1100 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1101 | if (ctx->qflag) { |
| 1102 | goto out; |
| 1103 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1104 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1105 | if (ctx->vflag) { |
| 1106 | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); |
| 1107 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1108 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1109 | /* Finally, report back -- -C gives a parsable format */ |
| 1110 | t2 = tsub(t2, ctx->t1); |
| 1111 | print_report("read", &t2, ctx->offset, ctx->qiov.size, |
| 1112 | ctx->qiov.size, 1, ctx->Cflag); |
Kevin Wolf | 7d8abfc | 2009-07-10 13:33:52 +0200 | [diff] [blame] | 1113 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1114 | qemu_io_free(ctx->buf); |
| 1115 | free(ctx); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1116 | } |
| 1117 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1118 | static void aio_read_help(void) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1119 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1120 | printf( |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1121 | "\n" |
| 1122 | " asynchronously reads a range of bytes from the given offset\n" |
| 1123 | "\n" |
| 1124 | " Example:\n" |
| 1125 | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n" |
| 1126 | "\n" |
| 1127 | " Reads a segment of the currently open file, optionally dumping it to the\n" |
| 1128 | " standard output stream (with -v option) for subsequent inspection.\n" |
Christoph Hellwig | e432cef | 2010-03-28 12:19:31 +0200 | [diff] [blame] | 1129 | " The read is performed asynchronously and the aio_flush command must be\n" |
| 1130 | " used to ensure all outstanding aio requests have been completed\n" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1131 | " -C, -- report statistics in a machine parsable format\n" |
| 1132 | " -P, -- use a pattern to verify read data\n" |
| 1133 | " -v, -- dump buffer to standard output\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 1134 | " -q, -- quiet mode, do not show I/O statistics\n" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1135 | "\n"); |
| 1136 | } |
| 1137 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1138 | static int aio_read_f(int argc, char **argv); |
| 1139 | |
| 1140 | static const cmdinfo_t aio_read_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1141 | .name = "aio_read", |
| 1142 | .cfunc = aio_read_f, |
| 1143 | .argmin = 2, |
| 1144 | .argmax = -1, |
| 1145 | .args = "[-Cqv] [-P pattern ] off len [len..]", |
| 1146 | .oneline = "asynchronously reads a number of bytes", |
| 1147 | .help = aio_read_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1148 | }; |
| 1149 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1150 | static int aio_read_f(int argc, char **argv) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1151 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1152 | int nr_iov, c; |
| 1153 | struct aio_ctx *ctx = calloc(1, sizeof(struct aio_ctx)); |
| 1154 | BlockDriverAIOCB *acb; |
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 | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
| 1157 | switch (c) { |
| 1158 | case 'C': |
| 1159 | ctx->Cflag = 1; |
| 1160 | break; |
| 1161 | case 'P': |
| 1162 | ctx->Pflag = 1; |
| 1163 | ctx->pattern = parse_pattern(optarg); |
| 1164 | if (ctx->pattern < 0) { |
| 1165 | free(ctx); |
| 1166 | return 0; |
| 1167 | } |
| 1168 | break; |
| 1169 | case 'q': |
| 1170 | ctx->qflag = 1; |
| 1171 | break; |
| 1172 | case 'v': |
| 1173 | ctx->vflag = 1; |
| 1174 | break; |
| 1175 | default: |
| 1176 | free(ctx); |
| 1177 | return command_usage(&aio_read_cmd); |
| 1178 | } |
| 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 (optind > argc - 2) { |
| 1182 | free(ctx); |
| 1183 | return command_usage(&aio_read_cmd); |
| 1184 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1185 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1186 | ctx->offset = cvtnum(argv[optind]); |
| 1187 | if (ctx->offset < 0) { |
| 1188 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1189 | free(ctx); |
| 1190 | return 0; |
| 1191 | } |
| 1192 | optind++; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1193 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1194 | if (ctx->offset & 0x1ff) { |
| 1195 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1196 | ctx->offset); |
| 1197 | free(ctx); |
| 1198 | return 0; |
| 1199 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1200 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1201 | nr_iov = argc - optind; |
| 1202 | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, 0xab); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 1203 | if (ctx->buf == NULL) { |
| 1204 | free(ctx); |
| 1205 | return 0; |
| 1206 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1207 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1208 | gettimeofday(&ctx->t1, NULL); |
| 1209 | acb = bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov, |
| 1210 | ctx->qiov.size >> 9, aio_read_done, ctx); |
| 1211 | if (!acb) { |
| 1212 | free(ctx->buf); |
| 1213 | free(ctx); |
| 1214 | return -EIO; |
| 1215 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1216 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1217 | return 0; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1218 | } |
| 1219 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1220 | static void aio_write_help(void) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1221 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1222 | printf( |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1223 | "\n" |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1224 | " asynchronously writes a range of bytes from the given offset source\n" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1225 | " from multiple buffers\n" |
| 1226 | "\n" |
| 1227 | " Example:\n" |
| 1228 | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n" |
| 1229 | "\n" |
| 1230 | " Writes into a segment of the currently open file, using a buffer\n" |
| 1231 | " filled with a set pattern (0xcdcdcdcd).\n" |
Christoph Hellwig | e432cef | 2010-03-28 12:19:31 +0200 | [diff] [blame] | 1232 | " The write is performed asynchronously and the aio_flush command must be\n" |
| 1233 | " used to ensure all outstanding aio requests have been completed\n" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1234 | " -P, -- use different pattern to fill file\n" |
| 1235 | " -C, -- report statistics in a machine parsable format\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 1236 | " -q, -- quiet mode, do not show I/O statistics\n" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1237 | "\n"); |
| 1238 | } |
| 1239 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1240 | static int aio_write_f(int argc, char **argv); |
| 1241 | |
| 1242 | static const cmdinfo_t aio_write_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1243 | .name = "aio_write", |
| 1244 | .cfunc = aio_write_f, |
| 1245 | .argmin = 2, |
| 1246 | .argmax = -1, |
| 1247 | .args = "[-Cq] [-P pattern ] off len [len..]", |
| 1248 | .oneline = "asynchronously writes a number of bytes", |
| 1249 | .help = aio_write_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1250 | }; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1251 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1252 | static int aio_write_f(int argc, char **argv) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1253 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1254 | int nr_iov, c; |
| 1255 | int pattern = 0xcd; |
| 1256 | struct aio_ctx *ctx = calloc(1, sizeof(struct aio_ctx)); |
| 1257 | BlockDriverAIOCB *acb; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1258 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1259 | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
| 1260 | switch (c) { |
| 1261 | case 'C': |
| 1262 | ctx->Cflag = 1; |
| 1263 | break; |
| 1264 | case 'q': |
| 1265 | ctx->qflag = 1; |
| 1266 | break; |
| 1267 | case 'P': |
| 1268 | pattern = parse_pattern(optarg); |
| 1269 | if (pattern < 0) { |
Alex Jia | b1b1dad | 2011-09-28 14:57:01 +0800 | [diff] [blame] | 1270 | free(ctx); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1271 | return 0; |
| 1272 | } |
| 1273 | break; |
| 1274 | default: |
| 1275 | free(ctx); |
| 1276 | return command_usage(&aio_write_cmd); |
| 1277 | } |
| 1278 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1279 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1280 | if (optind > argc - 2) { |
| 1281 | free(ctx); |
| 1282 | return command_usage(&aio_write_cmd); |
| 1283 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1284 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1285 | ctx->offset = cvtnum(argv[optind]); |
| 1286 | if (ctx->offset < 0) { |
| 1287 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1288 | free(ctx); |
| 1289 | return 0; |
| 1290 | } |
| 1291 | optind++; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1292 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1293 | if (ctx->offset & 0x1ff) { |
| 1294 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1295 | ctx->offset); |
| 1296 | free(ctx); |
| 1297 | return 0; |
| 1298 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1299 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1300 | nr_iov = argc - optind; |
| 1301 | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, pattern); |
Kevin Wolf | f236062 | 2011-10-31 11:36:32 +0100 | [diff] [blame] | 1302 | if (ctx->buf == NULL) { |
| 1303 | free(ctx); |
| 1304 | return 0; |
| 1305 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1306 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1307 | gettimeofday(&ctx->t1, NULL); |
| 1308 | acb = bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov, |
| 1309 | ctx->qiov.size >> 9, aio_write_done, ctx); |
| 1310 | if (!acb) { |
| 1311 | free(ctx->buf); |
| 1312 | free(ctx); |
| 1313 | return -EIO; |
| 1314 | } |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1315 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1316 | return 0; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1317 | } |
| 1318 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1319 | static int aio_flush_f(int argc, char **argv) |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1320 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1321 | qemu_aio_flush(); |
| 1322 | return 0; |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1323 | } |
| 1324 | |
| 1325 | static const cmdinfo_t aio_flush_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1326 | .name = "aio_flush", |
| 1327 | .cfunc = aio_flush_f, |
| 1328 | .oneline = "completes all outstanding aio requests" |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1329 | }; |
| 1330 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1331 | static int flush_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1332 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1333 | bdrv_flush(bs); |
| 1334 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1335 | } |
| 1336 | |
| 1337 | static const cmdinfo_t flush_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1338 | .name = "flush", |
| 1339 | .altname = "f", |
| 1340 | .cfunc = flush_f, |
| 1341 | .oneline = "flush all in-core file state to disk", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1342 | }; |
| 1343 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1344 | static int truncate_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1345 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1346 | int64_t offset; |
| 1347 | int ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1348 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1349 | offset = cvtnum(argv[1]); |
| 1350 | if (offset < 0) { |
| 1351 | printf("non-numeric truncate argument -- %s\n", argv[1]); |
| 1352 | return 0; |
| 1353 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1354 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1355 | ret = bdrv_truncate(bs, offset); |
| 1356 | if (ret < 0) { |
| 1357 | printf("truncate: %s\n", strerror(-ret)); |
| 1358 | return 0; |
| 1359 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1360 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1361 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1362 | } |
| 1363 | |
| 1364 | static const cmdinfo_t truncate_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1365 | .name = "truncate", |
| 1366 | .altname = "t", |
| 1367 | .cfunc = truncate_f, |
| 1368 | .argmin = 1, |
| 1369 | .argmax = 1, |
| 1370 | .args = "off", |
| 1371 | .oneline = "truncates the current file at the given offset", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1372 | }; |
| 1373 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1374 | static int length_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1375 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1376 | int64_t size; |
| 1377 | char s1[64]; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1378 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1379 | size = bdrv_getlength(bs); |
| 1380 | if (size < 0) { |
| 1381 | printf("getlength: %s\n", strerror(-size)); |
| 1382 | return 0; |
| 1383 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1384 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1385 | cvtstr(size, s1, sizeof(s1)); |
| 1386 | printf("%s\n", s1); |
| 1387 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1388 | } |
| 1389 | |
| 1390 | |
| 1391 | static const cmdinfo_t length_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1392 | .name = "length", |
| 1393 | .altname = "l", |
| 1394 | .cfunc = length_f, |
| 1395 | .oneline = "gets the length of the current file", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1396 | }; |
| 1397 | |
| 1398 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1399 | static int info_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1400 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1401 | BlockDriverInfo bdi; |
| 1402 | char s1[64], s2[64]; |
| 1403 | int ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1404 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1405 | if (bs->drv && bs->drv->format_name) { |
| 1406 | printf("format name: %s\n", bs->drv->format_name); |
| 1407 | } |
| 1408 | if (bs->drv && bs->drv->protocol_name) { |
| 1409 | printf("format name: %s\n", bs->drv->protocol_name); |
| 1410 | } |
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 | ret = bdrv_get_info(bs, &bdi); |
| 1413 | if (ret) { |
| 1414 | return 0; |
| 1415 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1416 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1417 | cvtstr(bdi.cluster_size, s1, sizeof(s1)); |
| 1418 | cvtstr(bdi.vm_state_offset, s2, sizeof(s2)); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1419 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1420 | printf("cluster size: %s\n", s1); |
| 1421 | printf("vm state offset: %s\n", s2); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1422 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1423 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1424 | } |
| 1425 | |
| 1426 | |
| 1427 | |
| 1428 | static const cmdinfo_t info_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1429 | .name = "info", |
| 1430 | .altname = "i", |
| 1431 | .cfunc = info_f, |
| 1432 | .oneline = "prints information about the current file", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1433 | }; |
| 1434 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1435 | static void discard_help(void) |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1436 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1437 | printf( |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1438 | "\n" |
| 1439 | " discards a range of bytes from the given offset\n" |
| 1440 | "\n" |
| 1441 | " Example:\n" |
| 1442 | " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n" |
| 1443 | "\n" |
| 1444 | " Discards a segment of the currently open file.\n" |
| 1445 | " -C, -- report statistics in a machine parsable format\n" |
Kevin Wolf | 095343a | 2010-12-17 11:55:37 +0100 | [diff] [blame] | 1446 | " -q, -- quiet mode, do not show I/O statistics\n" |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1447 | "\n"); |
| 1448 | } |
| 1449 | |
| 1450 | static int discard_f(int argc, char **argv); |
| 1451 | |
| 1452 | static const cmdinfo_t discard_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1453 | .name = "discard", |
| 1454 | .altname = "d", |
| 1455 | .cfunc = discard_f, |
| 1456 | .argmin = 2, |
| 1457 | .argmax = -1, |
| 1458 | .args = "[-Cq] off len", |
| 1459 | .oneline = "discards a number of bytes at a specified offset", |
| 1460 | .help = discard_help, |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1461 | }; |
| 1462 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1463 | static int discard_f(int argc, char **argv) |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1464 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1465 | struct timeval t1, t2; |
| 1466 | int Cflag = 0, qflag = 0; |
| 1467 | int c, ret; |
| 1468 | int64_t offset; |
| 1469 | int count; |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1470 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1471 | while ((c = getopt(argc, argv, "Cq")) != EOF) { |
| 1472 | switch (c) { |
| 1473 | case 'C': |
| 1474 | Cflag = 1; |
| 1475 | break; |
| 1476 | case 'q': |
| 1477 | qflag = 1; |
| 1478 | break; |
| 1479 | default: |
| 1480 | return command_usage(&discard_cmd); |
| 1481 | } |
| 1482 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1483 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1484 | if (optind != argc - 2) { |
| 1485 | return command_usage(&discard_cmd); |
| 1486 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1487 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1488 | offset = cvtnum(argv[optind]); |
| 1489 | if (offset < 0) { |
| 1490 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1491 | return 0; |
| 1492 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1493 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1494 | optind++; |
| 1495 | count = cvtnum(argv[optind]); |
| 1496 | if (count < 0) { |
| 1497 | printf("non-numeric length argument -- %s\n", argv[optind]); |
| 1498 | return 0; |
| 1499 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1500 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1501 | gettimeofday(&t1, NULL); |
| 1502 | ret = bdrv_discard(bs, offset >> BDRV_SECTOR_BITS, |
| 1503 | count >> BDRV_SECTOR_BITS); |
| 1504 | gettimeofday(&t2, NULL); |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1505 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1506 | if (ret < 0) { |
| 1507 | printf("discard failed: %s\n", strerror(-ret)); |
| 1508 | goto out; |
| 1509 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1510 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1511 | /* Finally, report back -- -C gives a parsable format */ |
| 1512 | if (!qflag) { |
| 1513 | t2 = tsub(t2, t1); |
| 1514 | print_report("discard", &t2, offset, count, count, 1, Cflag); |
| 1515 | } |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1516 | |
| 1517 | out: |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1518 | return 0; |
Stefan Hajnoczi | edff5db | 2010-12-13 09:36:26 +0000 | [diff] [blame] | 1519 | } |
| 1520 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1521 | static int alloc_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1522 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1523 | int64_t offset; |
| 1524 | int nb_sectors, remaining; |
| 1525 | char s1[64]; |
| 1526 | int num, sum_alloc; |
| 1527 | int ret; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1528 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1529 | offset = cvtnum(argv[1]); |
| 1530 | if (offset & 0x1ff) { |
| 1531 | printf("offset %" PRId64 " is not sector aligned\n", |
| 1532 | offset); |
| 1533 | return 0; |
| 1534 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1535 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1536 | if (argc == 3) { |
| 1537 | nb_sectors = cvtnum(argv[2]); |
| 1538 | } else { |
| 1539 | nb_sectors = 1; |
| 1540 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1541 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1542 | remaining = nb_sectors; |
| 1543 | sum_alloc = 0; |
| 1544 | while (remaining) { |
| 1545 | ret = bdrv_is_allocated(bs, offset >> 9, nb_sectors, &num); |
| 1546 | remaining -= num; |
| 1547 | if (ret) { |
| 1548 | sum_alloc += num; |
| 1549 | } |
| 1550 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1551 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1552 | cvtstr(offset, s1, sizeof(s1)); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1553 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1554 | printf("%d/%d sectors allocated at offset %s\n", |
| 1555 | sum_alloc, nb_sectors, s1); |
| 1556 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1557 | } |
| 1558 | |
| 1559 | static const cmdinfo_t alloc_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1560 | .name = "alloc", |
| 1561 | .altname = "a", |
| 1562 | .argmin = 1, |
| 1563 | .argmax = 2, |
| 1564 | .cfunc = alloc_f, |
| 1565 | .args = "off [sectors]", |
| 1566 | .oneline = "checks if a sector is present in the file", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1567 | }; |
| 1568 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1569 | static int map_f(int argc, char **argv) |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1570 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1571 | int64_t offset; |
| 1572 | int64_t nb_sectors; |
| 1573 | char s1[64]; |
| 1574 | int num, num_checked; |
| 1575 | int ret; |
| 1576 | const char *retstr; |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1577 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1578 | offset = 0; |
| 1579 | nb_sectors = bs->total_sectors; |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1580 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1581 | do { |
| 1582 | num_checked = MIN(nb_sectors, INT_MAX); |
| 1583 | ret = bdrv_is_allocated(bs, offset, num_checked, &num); |
| 1584 | retstr = ret ? " allocated" : "not allocated"; |
| 1585 | cvtstr(offset << 9ULL, s1, sizeof(s1)); |
| 1586 | printf("[% 24" PRId64 "] % 8d/% 8d sectors %s at offset %s (%d)\n", |
| 1587 | offset << 9ULL, num, num_checked, retstr, s1, ret); |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1588 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1589 | offset += num; |
| 1590 | nb_sectors -= num; |
| 1591 | } while (offset < bs->total_sectors); |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1592 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1593 | return 0; |
Kevin Wolf | 191c289 | 2010-09-16 13:18:08 +0200 | [diff] [blame] | 1594 | } |
| 1595 | |
| 1596 | static const cmdinfo_t map_cmd = { |
| 1597 | .name = "map", |
| 1598 | .argmin = 0, |
| 1599 | .argmax = 0, |
| 1600 | .cfunc = map_f, |
| 1601 | .args = "", |
| 1602 | .oneline = "prints the allocated areas of a file", |
| 1603 | }; |
| 1604 | |
| 1605 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1606 | static int close_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1607 | { |
Stefan Hajnoczi | b465785 | 2011-10-27 10:54:26 +0100 | [diff] [blame] | 1608 | bdrv_delete(bs); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1609 | bs = NULL; |
| 1610 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1611 | } |
| 1612 | |
| 1613 | static const cmdinfo_t close_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1614 | .name = "close", |
| 1615 | .altname = "c", |
| 1616 | .cfunc = close_f, |
| 1617 | .oneline = "close the current open file", |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1618 | }; |
| 1619 | |
Christoph Hellwig | 9c4bab2 | 2009-07-10 13:33:47 +0200 | [diff] [blame] | 1620 | static int openfile(char *name, int flags, int growable) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1621 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1622 | if (bs) { |
| 1623 | fprintf(stderr, "file open already, try 'help close'\n"); |
| 1624 | return 1; |
| 1625 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1626 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1627 | if (growable) { |
| 1628 | if (bdrv_file_open(&bs, name, flags)) { |
| 1629 | fprintf(stderr, "%s: can't open device %s\n", progname, name); |
| 1630 | return 1; |
| 1631 | } |
| 1632 | } else { |
| 1633 | bs = bdrv_new("hda"); |
Christoph Hellwig | 6db9560 | 2010-04-05 16:53:57 +0200 | [diff] [blame] | 1634 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1635 | if (bdrv_open(bs, name, flags, NULL) < 0) { |
| 1636 | fprintf(stderr, "%s: can't open device %s\n", progname, name); |
Stefan Hajnoczi | b465785 | 2011-10-27 10:54:26 +0100 | [diff] [blame] | 1637 | bdrv_delete(bs); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1638 | bs = NULL; |
| 1639 | return 1; |
| 1640 | } |
| 1641 | } |
Christoph Hellwig | 1db6947 | 2009-07-15 23:11:21 +0200 | [diff] [blame] | 1642 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1643 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1644 | } |
| 1645 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1646 | static void open_help(void) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1647 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1648 | printf( |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1649 | "\n" |
| 1650 | " opens a new file in the requested mode\n" |
| 1651 | "\n" |
| 1652 | " Example:\n" |
| 1653 | " 'open -Cn /tmp/data' - creates/opens data file read-write and uncached\n" |
| 1654 | "\n" |
| 1655 | " 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] | 1656 | " -r, -- open file read-only\n" |
| 1657 | " -s, -- use snapshot file\n" |
| 1658 | " -n, -- disable host cache\n" |
Christoph Hellwig | 9c4bab2 | 2009-07-10 13:33:47 +0200 | [diff] [blame] | 1659 | " -g, -- allow file to grow (only applies to protocols)" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1660 | "\n"); |
| 1661 | } |
| 1662 | |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1663 | static int open_f(int argc, char **argv); |
| 1664 | |
| 1665 | static const cmdinfo_t open_cmd = { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1666 | .name = "open", |
| 1667 | .altname = "o", |
| 1668 | .cfunc = open_f, |
| 1669 | .argmin = 1, |
| 1670 | .argmax = -1, |
| 1671 | .flags = CMD_NOFILE_OK, |
| 1672 | .args = "[-Crsn] [path]", |
| 1673 | .oneline = "open the file specified by path", |
| 1674 | .help = open_help, |
Blue Swirl | 22a2bdc | 2009-11-21 09:06:46 +0000 | [diff] [blame] | 1675 | }; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1676 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1677 | static int open_f(int argc, char **argv) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1678 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1679 | int flags = 0; |
| 1680 | int readonly = 0; |
| 1681 | int growable = 0; |
| 1682 | int c; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1683 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1684 | while ((c = getopt(argc, argv, "snrg")) != EOF) { |
| 1685 | switch (c) { |
| 1686 | case 's': |
| 1687 | flags |= BDRV_O_SNAPSHOT; |
| 1688 | break; |
| 1689 | case 'n': |
| 1690 | flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB; |
| 1691 | break; |
| 1692 | case 'r': |
| 1693 | readonly = 1; |
| 1694 | break; |
| 1695 | case 'g': |
| 1696 | growable = 1; |
| 1697 | break; |
| 1698 | default: |
| 1699 | return command_usage(&open_cmd); |
Naphtali Sprei | f5edb01 | 2010-01-17 16:48:13 +0200 | [diff] [blame] | 1700 | } |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1701 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1702 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1703 | if (!readonly) { |
| 1704 | flags |= BDRV_O_RDWR; |
| 1705 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1706 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1707 | if (optind != argc - 1) { |
| 1708 | return command_usage(&open_cmd); |
| 1709 | } |
| 1710 | |
| 1711 | return openfile(argv[optind], flags, growable); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1712 | } |
| 1713 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1714 | static int init_args_command(int index) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1715 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1716 | /* only one device allowed so far */ |
| 1717 | if (index >= 1) { |
| 1718 | return 0; |
| 1719 | } |
| 1720 | return ++index; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1721 | } |
| 1722 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1723 | static int init_check_command(const cmdinfo_t *ct) |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1724 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1725 | if (ct->flags & CMD_FLAG_GLOBAL) { |
| 1726 | return 1; |
| 1727 | } |
| 1728 | if (!(ct->flags & CMD_NOFILE_OK) && !bs) { |
| 1729 | fprintf(stderr, "no file open, try 'help open'\n"); |
| 1730 | return 0; |
| 1731 | } |
| 1732 | return 1; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1733 | } |
| 1734 | |
| 1735 | static void usage(const char *name) |
| 1736 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1737 | printf( |
Christoph Hellwig | 9a2d77a | 2010-01-20 18:13:42 +0100 | [diff] [blame] | 1738 | "Usage: %s [-h] [-V] [-rsnm] [-c cmd] ... [file]\n" |
Stefan Weil | 84844a2 | 2009-06-22 15:08:47 +0200 | [diff] [blame] | 1739 | "QEMU Disk exerciser\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1740 | "\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1741 | " -c, --cmd command to execute\n" |
| 1742 | " -r, --read-only export read-only\n" |
| 1743 | " -s, --snapshot use snapshot file\n" |
| 1744 | " -n, --nocache disable host cache\n" |
Christoph Hellwig | 1db6947 | 2009-07-15 23:11:21 +0200 | [diff] [blame] | 1745 | " -g, --growable allow file to grow (only applies to protocols)\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1746 | " -m, --misalign misalign allocations for O_DIRECT\n" |
Christoph Hellwig | 5c6c3a6 | 2009-08-20 16:58:35 +0200 | [diff] [blame] | 1747 | " -k, --native-aio use kernel AIO implementation (on Linux only)\n" |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1748 | " -h, --help display this help and exit\n" |
| 1749 | " -V, --version output version information and exit\n" |
| 1750 | "\n", |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1751 | name); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1752 | } |
| 1753 | |
| 1754 | |
| 1755 | int main(int argc, char **argv) |
| 1756 | { |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1757 | int readonly = 0; |
| 1758 | int growable = 0; |
| 1759 | const char *sopt = "hVc:rsnmgk"; |
| 1760 | const struct option lopt[] = { |
| 1761 | { "help", 0, NULL, 'h' }, |
| 1762 | { "version", 0, NULL, 'V' }, |
| 1763 | { "offset", 1, NULL, 'o' }, |
| 1764 | { "cmd", 1, NULL, 'c' }, |
| 1765 | { "read-only", 0, NULL, 'r' }, |
| 1766 | { "snapshot", 0, NULL, 's' }, |
| 1767 | { "nocache", 0, NULL, 'n' }, |
| 1768 | { "misalign", 0, NULL, 'm' }, |
| 1769 | { "growable", 0, NULL, 'g' }, |
| 1770 | { "native-aio", 0, NULL, 'k' }, |
| 1771 | { NULL, 0, NULL, 0 } |
| 1772 | }; |
| 1773 | int c; |
| 1774 | int opt_index = 0; |
| 1775 | int flags = 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1776 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1777 | progname = basename(argv[0]); |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1778 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1779 | while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) { |
| 1780 | switch (c) { |
| 1781 | case 's': |
| 1782 | flags |= BDRV_O_SNAPSHOT; |
| 1783 | break; |
| 1784 | case 'n': |
| 1785 | flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB; |
| 1786 | break; |
| 1787 | case 'c': |
| 1788 | add_user_command(optarg); |
| 1789 | break; |
| 1790 | case 'r': |
| 1791 | readonly = 1; |
| 1792 | break; |
| 1793 | case 'm': |
| 1794 | misalign = 1; |
| 1795 | break; |
| 1796 | case 'g': |
| 1797 | growable = 1; |
| 1798 | break; |
| 1799 | case 'k': |
| 1800 | flags |= BDRV_O_NATIVE_AIO; |
| 1801 | break; |
| 1802 | case 'V': |
| 1803 | printf("%s version %s\n", progname, VERSION); |
| 1804 | exit(0); |
| 1805 | case 'h': |
| 1806 | usage(progname); |
| 1807 | exit(0); |
| 1808 | default: |
| 1809 | usage(progname); |
| 1810 | exit(1); |
Naphtali Sprei | f5edb01 | 2010-01-17 16:48:13 +0200 | [diff] [blame] | 1811 | } |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1812 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1813 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1814 | if ((argc - optind) > 1) { |
| 1815 | usage(progname); |
| 1816 | exit(1); |
| 1817 | } |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1818 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1819 | bdrv_init(); |
Christoph Hellwig | 95533d5 | 2009-06-20 21:10:44 +0200 | [diff] [blame] | 1820 | |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1821 | /* initialize commands */ |
| 1822 | quit_init(); |
| 1823 | help_init(); |
| 1824 | add_command(&open_cmd); |
| 1825 | add_command(&close_cmd); |
| 1826 | add_command(&read_cmd); |
| 1827 | add_command(&readv_cmd); |
| 1828 | add_command(&write_cmd); |
| 1829 | add_command(&writev_cmd); |
| 1830 | add_command(&multiwrite_cmd); |
| 1831 | add_command(&aio_read_cmd); |
| 1832 | add_command(&aio_write_cmd); |
| 1833 | add_command(&aio_flush_cmd); |
| 1834 | add_command(&flush_cmd); |
| 1835 | add_command(&truncate_cmd); |
| 1836 | add_command(&length_cmd); |
| 1837 | add_command(&info_cmd); |
| 1838 | add_command(&discard_cmd); |
| 1839 | add_command(&alloc_cmd); |
| 1840 | add_command(&map_cmd); |
| 1841 | |
| 1842 | add_args_command(init_args_command); |
| 1843 | add_check_command(init_check_command); |
| 1844 | |
| 1845 | /* open the device */ |
| 1846 | if (!readonly) { |
| 1847 | flags |= BDRV_O_RDWR; |
| 1848 | } |
| 1849 | |
| 1850 | if ((argc - optind) == 1) { |
| 1851 | openfile(argv[optind], flags, growable); |
| 1852 | } |
| 1853 | command_loop(); |
| 1854 | |
| 1855 | /* |
| 1856 | * Make sure all outstanding requests get flushed the program exits. |
| 1857 | */ |
| 1858 | qemu_aio_flush(); |
| 1859 | |
| 1860 | if (bs) { |
Stefan Hajnoczi | b465785 | 2011-10-27 10:54:26 +0100 | [diff] [blame] | 1861 | bdrv_delete(bs); |
Devin Nakamura | 43642b3 | 2011-07-11 11:22:16 -0400 | [diff] [blame] | 1862 | } |
| 1863 | return 0; |
aliguori | e3aff4f | 2009-04-05 19:14:04 +0000 | [diff] [blame] | 1864 | } |