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1 | e3aff4f6 | aliguori | /*
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2 | e3aff4f6 | aliguori | * Command line utility to exercise the QEMU I/O path.
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3 | e3aff4f6 | aliguori | *
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4 | e3aff4f6 | aliguori | * Copyright (C) 2009 Red Hat, Inc.
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5 | e3aff4f6 | aliguori | * Copyright (c) 2003-2005 Silicon Graphics, Inc.
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6 | e3aff4f6 | aliguori | *
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7 | e3aff4f6 | aliguori | * This work is licensed under the terms of the GNU GPL, version 2 or later.
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8 | e3aff4f6 | aliguori | * See the COPYING file in the top-level directory.
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9 | e3aff4f6 | aliguori | */
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10 | e3aff4f6 | aliguori | #include <sys/types.h> |
11 | e3aff4f6 | aliguori | #include <stdarg.h> |
12 | e3aff4f6 | aliguori | #include <stdio.h> |
13 | e3aff4f6 | aliguori | #include <getopt.h> |
14 | e3aff4f6 | aliguori | |
15 | e3aff4f6 | aliguori | #include "qemu-common.h" |
16 | e3aff4f6 | aliguori | #include "block_int.h" |
17 | e3aff4f6 | aliguori | #include "cmd.h" |
18 | e3aff4f6 | aliguori | |
19 | e3aff4f6 | aliguori | #define VERSION "0.0.1" |
20 | e3aff4f6 | aliguori | |
21 | e3aff4f6 | aliguori | #define CMD_NOFILE_OK 0x01 |
22 | e3aff4f6 | aliguori | |
23 | e3aff4f6 | aliguori | char *progname;
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24 | e3aff4f6 | aliguori | static BlockDriverState *bs;
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25 | e3aff4f6 | aliguori | |
26 | e3aff4f6 | aliguori | static int misalign; |
27 | e3aff4f6 | aliguori | |
28 | e3aff4f6 | aliguori | /*
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29 | e3aff4f6 | aliguori | * Memory allocation helpers.
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30 | e3aff4f6 | aliguori | *
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31 | e3aff4f6 | aliguori | * Make sure memory is aligned by default, or purposefully misaligned if
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32 | e3aff4f6 | aliguori | * that is specified on the command line.
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33 | e3aff4f6 | aliguori | */
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34 | e3aff4f6 | aliguori | |
35 | e3aff4f6 | aliguori | #define MISALIGN_OFFSET 16 |
36 | e3aff4f6 | aliguori | static void *qemu_io_alloc(size_t len, int pattern) |
37 | e3aff4f6 | aliguori | { |
38 | e3aff4f6 | aliguori | void *buf;
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39 | e3aff4f6 | aliguori | |
40 | e3aff4f6 | aliguori | if (misalign)
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41 | e3aff4f6 | aliguori | len += MISALIGN_OFFSET; |
42 | e3aff4f6 | aliguori | buf = qemu_memalign(512, len);
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43 | e3aff4f6 | aliguori | memset(buf, pattern, len); |
44 | e3aff4f6 | aliguori | if (misalign)
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45 | e3aff4f6 | aliguori | buf += MISALIGN_OFFSET; |
46 | e3aff4f6 | aliguori | return buf;
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47 | e3aff4f6 | aliguori | } |
48 | e3aff4f6 | aliguori | |
49 | e3aff4f6 | aliguori | static void qemu_io_free(void *p) |
50 | e3aff4f6 | aliguori | { |
51 | e3aff4f6 | aliguori | if (misalign)
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52 | e3aff4f6 | aliguori | p -= MISALIGN_OFFSET; |
53 | e3aff4f6 | aliguori | qemu_vfree(p); |
54 | e3aff4f6 | aliguori | } |
55 | e3aff4f6 | aliguori | |
56 | e3aff4f6 | aliguori | static void |
57 | 3abcdf49 | Stefan Weil | dump_buffer(const void *buffer, int64_t offset, int len) |
58 | e3aff4f6 | aliguori | { |
59 | e3aff4f6 | aliguori | int i, j;
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60 | 3abcdf49 | Stefan Weil | const uint8_t *p;
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61 | e3aff4f6 | aliguori | |
62 | e3aff4f6 | aliguori | for (i = 0, p = buffer; i < len; i += 16) { |
63 | 3abcdf49 | Stefan Weil | const uint8_t *s = p;
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64 | e3aff4f6 | aliguori | |
65 | e3aff4f6 | aliguori | printf("%08llx: ", (unsigned long long)offset + i); |
66 | e3aff4f6 | aliguori | for (j = 0; j < 16 && i + j < len; j++, p++) |
67 | e3aff4f6 | aliguori | printf("%02x ", *p);
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68 | e3aff4f6 | aliguori | printf(" ");
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69 | e3aff4f6 | aliguori | for (j = 0; j < 16 && i + j < len; j++, s++) { |
70 | 3abcdf49 | Stefan Weil | if (isalnum(*s))
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71 | e3aff4f6 | aliguori | printf("%c", *s);
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72 | e3aff4f6 | aliguori | else
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73 | e3aff4f6 | aliguori | printf(".");
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74 | e3aff4f6 | aliguori | } |
75 | e3aff4f6 | aliguori | printf("\n");
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76 | e3aff4f6 | aliguori | } |
77 | e3aff4f6 | aliguori | } |
78 | e3aff4f6 | aliguori | |
79 | e3aff4f6 | aliguori | static void |
80 | e3aff4f6 | aliguori | print_report(const char *op, struct timeval *t, int64_t offset, |
81 | e3aff4f6 | aliguori | int count, int total, int cnt, int Cflag) |
82 | e3aff4f6 | aliguori | { |
83 | e3aff4f6 | aliguori | char s1[64], s2[64], ts[64]; |
84 | e3aff4f6 | aliguori | |
85 | e3aff4f6 | aliguori | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); |
86 | e3aff4f6 | aliguori | if (!Cflag) {
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87 | e3aff4f6 | aliguori | cvtstr((double)total, s1, sizeof(s1)); |
88 | e3aff4f6 | aliguori | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); |
89 | e3aff4f6 | aliguori | printf("%s %d/%d bytes at offset %lld\n",
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90 | e3aff4f6 | aliguori | op, total, count, (long long)offset); |
91 | e3aff4f6 | aliguori | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n",
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92 | e3aff4f6 | aliguori | s1, cnt, ts, s2, tdiv((double)cnt, *t));
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93 | e3aff4f6 | aliguori | } else {/* bytes,ops,time,bytes/sec,ops/sec */ |
94 | e3aff4f6 | aliguori | printf("%d,%d,%s,%.3f,%.3f\n",
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95 | e3aff4f6 | aliguori | total, cnt, ts, |
96 | e3aff4f6 | aliguori | tdiv((double)total, *t),
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97 | e3aff4f6 | aliguori | tdiv((double)cnt, *t));
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98 | e3aff4f6 | aliguori | } |
99 | e3aff4f6 | aliguori | } |
100 | e3aff4f6 | aliguori | |
101 | cf57298a | Christoph Hellwig | /*
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102 | cf57298a | Christoph Hellwig | * Parse multiple length statements for vectored I/O, and construct an I/O
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103 | cf57298a | Christoph Hellwig | * vector matching it.
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104 | cf57298a | Christoph Hellwig | */
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105 | cf57298a | Christoph Hellwig | static void * |
106 | cf57298a | Christoph Hellwig | create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern) |
107 | cf57298a | Christoph Hellwig | { |
108 | cf57298a | Christoph Hellwig | size_t *sizes = calloc(nr_iov, sizeof(size_t));
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109 | cf57298a | Christoph Hellwig | size_t count = 0;
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110 | cf57298a | Christoph Hellwig | void *buf, *p;
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111 | cf57298a | Christoph Hellwig | int i;
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112 | cf57298a | Christoph Hellwig | |
113 | cf57298a | Christoph Hellwig | for (i = 0; i < nr_iov; i++) { |
114 | cf57298a | Christoph Hellwig | char *arg = argv[i];
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115 | cf57298a | Christoph Hellwig | long long len; |
116 | cf57298a | Christoph Hellwig | |
117 | cf57298a | Christoph Hellwig | len = cvtnum(arg); |
118 | cf57298a | Christoph Hellwig | if (len < 0) { |
119 | cf57298a | Christoph Hellwig | printf("non-numeric length argument -- %s\n", arg);
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120 | cf57298a | Christoph Hellwig | return NULL; |
121 | cf57298a | Christoph Hellwig | } |
122 | cf57298a | Christoph Hellwig | |
123 | cf57298a | Christoph Hellwig | /* should be SIZE_T_MAX, but that doesn't exist */
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124 | cf57298a | Christoph Hellwig | if (len > UINT_MAX) {
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125 | cf57298a | Christoph Hellwig | printf("too large length argument -- %s\n", arg);
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126 | cf57298a | Christoph Hellwig | return NULL; |
127 | cf57298a | Christoph Hellwig | } |
128 | cf57298a | Christoph Hellwig | |
129 | cf57298a | Christoph Hellwig | if (len & 0x1ff) { |
130 | cf57298a | Christoph Hellwig | printf("length argument %lld is not sector aligned\n",
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131 | cf57298a | Christoph Hellwig | len); |
132 | cf57298a | Christoph Hellwig | return NULL; |
133 | cf57298a | Christoph Hellwig | } |
134 | cf57298a | Christoph Hellwig | |
135 | cf57298a | Christoph Hellwig | sizes[i] = len; |
136 | cf57298a | Christoph Hellwig | count += len; |
137 | cf57298a | Christoph Hellwig | } |
138 | cf57298a | Christoph Hellwig | |
139 | cf57298a | Christoph Hellwig | qemu_iovec_init(qiov, nr_iov); |
140 | cf57298a | Christoph Hellwig | |
141 | cf57298a | Christoph Hellwig | buf = p = qemu_io_alloc(count, pattern); |
142 | cf57298a | Christoph Hellwig | |
143 | cf57298a | Christoph Hellwig | for (i = 0; i < nr_iov; i++) { |
144 | cf57298a | Christoph Hellwig | qemu_iovec_add(qiov, p, sizes[i]); |
145 | cf57298a | Christoph Hellwig | p += sizes[i]; |
146 | cf57298a | Christoph Hellwig | } |
147 | cf57298a | Christoph Hellwig | |
148 | cf57298a | Christoph Hellwig | free(sizes); |
149 | cf57298a | Christoph Hellwig | return buf;
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150 | cf57298a | Christoph Hellwig | } |
151 | cf57298a | Christoph Hellwig | |
152 | e3aff4f6 | aliguori | static int do_read(char *buf, int64_t offset, int count, int *total) |
153 | e3aff4f6 | aliguori | { |
154 | e3aff4f6 | aliguori | int ret;
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155 | e3aff4f6 | aliguori | |
156 | e3aff4f6 | aliguori | ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
157 | e3aff4f6 | aliguori | if (ret < 0) |
158 | e3aff4f6 | aliguori | return ret;
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159 | e3aff4f6 | aliguori | *total = count; |
160 | e3aff4f6 | aliguori | return 1; |
161 | e3aff4f6 | aliguori | } |
162 | e3aff4f6 | aliguori | |
163 | e3aff4f6 | aliguori | static int do_write(char *buf, int64_t offset, int count, int *total) |
164 | e3aff4f6 | aliguori | { |
165 | e3aff4f6 | aliguori | int ret;
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166 | e3aff4f6 | aliguori | |
167 | e3aff4f6 | aliguori | ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
168 | e3aff4f6 | aliguori | if (ret < 0) |
169 | e3aff4f6 | aliguori | return ret;
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170 | e3aff4f6 | aliguori | *total = count; |
171 | e3aff4f6 | aliguori | return 1; |
172 | e3aff4f6 | aliguori | } |
173 | e3aff4f6 | aliguori | |
174 | e3aff4f6 | aliguori | static int do_pread(char *buf, int64_t offset, int count, int *total) |
175 | e3aff4f6 | aliguori | { |
176 | e3aff4f6 | aliguori | *total = bdrv_pread(bs, offset, (uint8_t *)buf, count); |
177 | e3aff4f6 | aliguori | if (*total < 0) |
178 | e3aff4f6 | aliguori | return *total;
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179 | e3aff4f6 | aliguori | return 1; |
180 | e3aff4f6 | aliguori | } |
181 | e3aff4f6 | aliguori | |
182 | e3aff4f6 | aliguori | static int do_pwrite(char *buf, int64_t offset, int count, int *total) |
183 | e3aff4f6 | aliguori | { |
184 | e3aff4f6 | aliguori | *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count); |
185 | e3aff4f6 | aliguori | if (*total < 0) |
186 | e3aff4f6 | aliguori | return *total;
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187 | e3aff4f6 | aliguori | return 1; |
188 | e3aff4f6 | aliguori | } |
189 | e3aff4f6 | aliguori | |
190 | ca94dbc7 | Kevin Wolf | static int do_load_vmstate(char *buf, int64_t offset, int count, int *total) |
191 | ca94dbc7 | Kevin Wolf | { |
192 | ca94dbc7 | Kevin Wolf | *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count); |
193 | ca94dbc7 | Kevin Wolf | if (*total < 0) |
194 | ca94dbc7 | Kevin Wolf | return *total;
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195 | ca94dbc7 | Kevin Wolf | return 1; |
196 | ca94dbc7 | Kevin Wolf | } |
197 | ca94dbc7 | Kevin Wolf | |
198 | ca94dbc7 | Kevin Wolf | static int do_save_vmstate(char *buf, int64_t offset, int count, int *total) |
199 | ca94dbc7 | Kevin Wolf | { |
200 | ca94dbc7 | Kevin Wolf | *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count); |
201 | ca94dbc7 | Kevin Wolf | if (*total < 0) |
202 | ca94dbc7 | Kevin Wolf | return *total;
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203 | ca94dbc7 | Kevin Wolf | return 1; |
204 | ca94dbc7 | Kevin Wolf | } |
205 | ca94dbc7 | Kevin Wolf | |
206 | e3aff4f6 | aliguori | #define NOT_DONE 0x7fffffff |
207 | e3aff4f6 | aliguori | static void aio_rw_done(void *opaque, int ret) |
208 | e3aff4f6 | aliguori | { |
209 | e3aff4f6 | aliguori | *(int *)opaque = ret;
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210 | e3aff4f6 | aliguori | } |
211 | e3aff4f6 | aliguori | |
212 | e3aff4f6 | aliguori | static int do_aio_readv(QEMUIOVector *qiov, int64_t offset, int *total) |
213 | e3aff4f6 | aliguori | { |
214 | e3aff4f6 | aliguori | BlockDriverAIOCB *acb; |
215 | e3aff4f6 | aliguori | int async_ret = NOT_DONE;
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216 | e3aff4f6 | aliguori | |
217 | e3aff4f6 | aliguori | acb = bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9, |
218 | e3aff4f6 | aliguori | aio_rw_done, &async_ret); |
219 | e3aff4f6 | aliguori | if (!acb)
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220 | e3aff4f6 | aliguori | return -EIO;
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221 | e3aff4f6 | aliguori | |
222 | e3aff4f6 | aliguori | while (async_ret == NOT_DONE)
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223 | e3aff4f6 | aliguori | qemu_aio_wait(); |
224 | e3aff4f6 | aliguori | |
225 | e3aff4f6 | aliguori | *total = qiov->size; |
226 | e3aff4f6 | aliguori | return async_ret < 0 ? async_ret : 1; |
227 | e3aff4f6 | aliguori | } |
228 | e3aff4f6 | aliguori | |
229 | e3aff4f6 | aliguori | static int do_aio_writev(QEMUIOVector *qiov, int64_t offset, int *total) |
230 | e3aff4f6 | aliguori | { |
231 | e3aff4f6 | aliguori | BlockDriverAIOCB *acb; |
232 | e3aff4f6 | aliguori | int async_ret = NOT_DONE;
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233 | e3aff4f6 | aliguori | |
234 | e3aff4f6 | aliguori | acb = bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9, |
235 | e3aff4f6 | aliguori | aio_rw_done, &async_ret); |
236 | e3aff4f6 | aliguori | if (!acb)
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237 | e3aff4f6 | aliguori | return -EIO;
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238 | e3aff4f6 | aliguori | |
239 | e3aff4f6 | aliguori | while (async_ret == NOT_DONE)
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240 | e3aff4f6 | aliguori | qemu_aio_wait(); |
241 | e3aff4f6 | aliguori | |
242 | 7e9bbc9f | aliguori | *total = qiov->size; |
243 | e3aff4f6 | aliguori | return async_ret < 0 ? async_ret : 1; |
244 | e3aff4f6 | aliguori | } |
245 | e3aff4f6 | aliguori | |
246 | e3aff4f6 | aliguori | |
247 | e3aff4f6 | aliguori | static const cmdinfo_t read_cmd; |
248 | e3aff4f6 | aliguori | |
249 | e3aff4f6 | aliguori | static void |
250 | e3aff4f6 | aliguori | read_help(void)
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251 | e3aff4f6 | aliguori | { |
252 | e3aff4f6 | aliguori | printf( |
253 | e3aff4f6 | aliguori | "\n"
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254 | e3aff4f6 | aliguori | " reads a range of bytes from the given offset\n"
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255 | e3aff4f6 | aliguori | "\n"
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256 | e3aff4f6 | aliguori | " Example:\n"
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257 | e3aff4f6 | aliguori | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n"
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258 | e3aff4f6 | aliguori | "\n"
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259 | e3aff4f6 | aliguori | " Reads a segment of the currently open file, optionally dumping it to the\n"
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260 | e3aff4f6 | aliguori | " standard output stream (with -v option) for subsequent inspection.\n"
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261 | ca94dbc7 | Kevin Wolf | " -b, -- read from the VM state rather than the virtual disk\n"
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262 | d9654a58 | Kevin Wolf | " -C, -- report statistics in a machine parsable format\n"
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263 | d9654a58 | Kevin Wolf | " -l, -- length for pattern verification (only with -P)\n"
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264 | e3aff4f6 | aliguori | " -p, -- use bdrv_pread to read the file\n"
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265 | c48101ae | aliguori | " -P, -- use a pattern to verify read data\n"
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266 | e3aff4f6 | aliguori | " -q, -- quite mode, do not show I/O statistics\n"
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267 | d9654a58 | Kevin Wolf | " -s, -- start offset for pattern verification (only with -P)\n"
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268 | d9654a58 | Kevin Wolf | " -v, -- dump buffer to standard output\n"
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269 | e3aff4f6 | aliguori | "\n");
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270 | e3aff4f6 | aliguori | } |
271 | e3aff4f6 | aliguori | |
272 | e3aff4f6 | aliguori | static int |
273 | e3aff4f6 | aliguori | read_f(int argc, char **argv) |
274 | e3aff4f6 | aliguori | { |
275 | e3aff4f6 | aliguori | struct timeval t1, t2;
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276 | e3aff4f6 | aliguori | int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; |
277 | ca94dbc7 | Kevin Wolf | int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; |
278 | e3aff4f6 | aliguori | int c, cnt;
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279 | e3aff4f6 | aliguori | char *buf;
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280 | e3aff4f6 | aliguori | int64_t offset; |
281 | d4ec5228 | Paul Brook | int count;
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282 | d4ec5228 | Paul Brook | /* Some compilers get confused and warn if this is not initialized. */
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283 | d4ec5228 | Paul Brook | int total = 0; |
284 | d9654a58 | Kevin Wolf | int pattern = 0, pattern_offset = 0, pattern_count = 0; |
285 | e3aff4f6 | aliguori | |
286 | ca94dbc7 | Kevin Wolf | while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) { |
287 | e3aff4f6 | aliguori | switch (c) {
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288 | ca94dbc7 | Kevin Wolf | case 'b': |
289 | ca94dbc7 | Kevin Wolf | bflag = 1;
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290 | ca94dbc7 | Kevin Wolf | break;
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291 | e3aff4f6 | aliguori | case 'C': |
292 | e3aff4f6 | aliguori | Cflag = 1;
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293 | e3aff4f6 | aliguori | break;
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294 | d9654a58 | Kevin Wolf | case 'l': |
295 | d9654a58 | Kevin Wolf | lflag = 1;
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296 | d9654a58 | Kevin Wolf | pattern_count = cvtnum(optarg); |
297 | d9654a58 | Kevin Wolf | if (pattern_count < 0) { |
298 | d9654a58 | Kevin Wolf | printf("non-numeric length argument -- %s\n", optarg);
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299 | d9654a58 | Kevin Wolf | return 0; |
300 | d9654a58 | Kevin Wolf | } |
301 | d9654a58 | Kevin Wolf | break;
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302 | e3aff4f6 | aliguori | case 'p': |
303 | e3aff4f6 | aliguori | pflag = 1;
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304 | e3aff4f6 | aliguori | break;
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305 | c48101ae | aliguori | case 'P': |
306 | c48101ae | aliguori | Pflag = 1;
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307 | c48101ae | aliguori | pattern = atoi(optarg); |
308 | c48101ae | aliguori | break;
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309 | e3aff4f6 | aliguori | case 'q': |
310 | e3aff4f6 | aliguori | qflag = 1;
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311 | e3aff4f6 | aliguori | break;
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312 | d9654a58 | Kevin Wolf | case 's': |
313 | d9654a58 | Kevin Wolf | sflag = 1;
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314 | d9654a58 | Kevin Wolf | pattern_offset = cvtnum(optarg); |
315 | d9654a58 | Kevin Wolf | if (pattern_offset < 0) { |
316 | d9654a58 | Kevin Wolf | printf("non-numeric length argument -- %s\n", optarg);
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317 | d9654a58 | Kevin Wolf | return 0; |
318 | d9654a58 | Kevin Wolf | } |
319 | d9654a58 | Kevin Wolf | break;
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320 | e3aff4f6 | aliguori | case 'v': |
321 | e3aff4f6 | aliguori | vflag = 1;
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322 | e3aff4f6 | aliguori | break;
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323 | e3aff4f6 | aliguori | default:
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324 | e3aff4f6 | aliguori | return command_usage(&read_cmd);
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325 | e3aff4f6 | aliguori | } |
326 | e3aff4f6 | aliguori | } |
327 | e3aff4f6 | aliguori | |
328 | e3aff4f6 | aliguori | if (optind != argc - 2) |
329 | e3aff4f6 | aliguori | return command_usage(&read_cmd);
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330 | e3aff4f6 | aliguori | |
331 | ca94dbc7 | Kevin Wolf | if (bflag && pflag) {
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332 | ca94dbc7 | Kevin Wolf | printf("-b and -p cannot be specified at the same time\n");
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333 | ca94dbc7 | Kevin Wolf | return 0; |
334 | ca94dbc7 | Kevin Wolf | } |
335 | ca94dbc7 | Kevin Wolf | |
336 | e3aff4f6 | aliguori | offset = cvtnum(argv[optind]); |
337 | e3aff4f6 | aliguori | if (offset < 0) { |
338 | e3aff4f6 | aliguori | printf("non-numeric length argument -- %s\n", argv[optind]);
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339 | e3aff4f6 | aliguori | return 0; |
340 | e3aff4f6 | aliguori | } |
341 | e3aff4f6 | aliguori | |
342 | e3aff4f6 | aliguori | optind++; |
343 | e3aff4f6 | aliguori | count = cvtnum(argv[optind]); |
344 | e3aff4f6 | aliguori | if (count < 0) { |
345 | e3aff4f6 | aliguori | printf("non-numeric length argument -- %s\n", argv[optind]);
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346 | e3aff4f6 | aliguori | return 0; |
347 | e3aff4f6 | aliguori | } |
348 | e3aff4f6 | aliguori | |
349 | d9654a58 | Kevin Wolf | if (!Pflag && (lflag || sflag)) {
|
350 | d9654a58 | Kevin Wolf | return command_usage(&read_cmd);
|
351 | d9654a58 | Kevin Wolf | } |
352 | d9654a58 | Kevin Wolf | |
353 | d9654a58 | Kevin Wolf | if (!lflag) {
|
354 | d9654a58 | Kevin Wolf | pattern_count = count - pattern_offset; |
355 | d9654a58 | Kevin Wolf | } |
356 | d9654a58 | Kevin Wolf | |
357 | d9654a58 | Kevin Wolf | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { |
358 | d9654a58 | Kevin Wolf | printf("pattern verfication range exceeds end of read data\n");
|
359 | d9654a58 | Kevin Wolf | return 0; |
360 | d9654a58 | Kevin Wolf | } |
361 | d9654a58 | Kevin Wolf | |
362 | e3aff4f6 | aliguori | if (!pflag)
|
363 | e3aff4f6 | aliguori | if (offset & 0x1ff) { |
364 | e3aff4f6 | aliguori | printf("offset %lld is not sector aligned\n",
|
365 | e3aff4f6 | aliguori | (long long)offset); |
366 | e3aff4f6 | aliguori | return 0; |
367 | e3aff4f6 | aliguori | |
368 | e3aff4f6 | aliguori | if (count & 0x1ff) { |
369 | e3aff4f6 | aliguori | printf("count %d is not sector aligned\n",
|
370 | e3aff4f6 | aliguori | count); |
371 | e3aff4f6 | aliguori | return 0; |
372 | e3aff4f6 | aliguori | } |
373 | e3aff4f6 | aliguori | } |
374 | e3aff4f6 | aliguori | |
375 | e3aff4f6 | aliguori | buf = qemu_io_alloc(count, 0xab);
|
376 | e3aff4f6 | aliguori | |
377 | e3aff4f6 | aliguori | gettimeofday(&t1, NULL);
|
378 | e3aff4f6 | aliguori | if (pflag)
|
379 | e3aff4f6 | aliguori | cnt = do_pread(buf, offset, count, &total); |
380 | ca94dbc7 | Kevin Wolf | else if (bflag) |
381 | ca94dbc7 | Kevin Wolf | cnt = do_load_vmstate(buf, offset, count, &total); |
382 | e3aff4f6 | aliguori | else
|
383 | e3aff4f6 | aliguori | cnt = do_read(buf, offset, count, &total); |
384 | e3aff4f6 | aliguori | gettimeofday(&t2, NULL);
|
385 | e3aff4f6 | aliguori | |
386 | e3aff4f6 | aliguori | if (cnt < 0) { |
387 | e3aff4f6 | aliguori | printf("read failed: %s\n", strerror(-cnt));
|
388 | 7d8abfcb | Kevin Wolf | goto out;
|
389 | e3aff4f6 | aliguori | } |
390 | e3aff4f6 | aliguori | |
391 | c48101ae | aliguori | if (Pflag) {
|
392 | d9654a58 | Kevin Wolf | void* cmp_buf = malloc(pattern_count);
|
393 | d9654a58 | Kevin Wolf | memset(cmp_buf, pattern, pattern_count); |
394 | d9654a58 | Kevin Wolf | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) {
|
395 | c48101ae | aliguori | printf("Pattern verification failed at offset %lld, "
|
396 | c48101ae | aliguori | "%d bytes\n",
|
397 | d9654a58 | Kevin Wolf | (long long) offset + pattern_offset, pattern_count); |
398 | c48101ae | aliguori | } |
399 | c48101ae | aliguori | free(cmp_buf); |
400 | c48101ae | aliguori | } |
401 | c48101ae | aliguori | |
402 | e3aff4f6 | aliguori | if (qflag)
|
403 | 7d8abfcb | Kevin Wolf | goto out;
|
404 | e3aff4f6 | aliguori | |
405 | e3aff4f6 | aliguori | if (vflag)
|
406 | e3aff4f6 | aliguori | dump_buffer(buf, offset, count); |
407 | e3aff4f6 | aliguori | |
408 | e3aff4f6 | aliguori | /* Finally, report back -- -C gives a parsable format */
|
409 | e3aff4f6 | aliguori | t2 = tsub(t2, t1); |
410 | e3aff4f6 | aliguori | print_report("read", &t2, offset, count, total, cnt, Cflag);
|
411 | e3aff4f6 | aliguori | |
412 | 7d8abfcb | Kevin Wolf | out:
|
413 | e3aff4f6 | aliguori | qemu_io_free(buf); |
414 | e3aff4f6 | aliguori | |
415 | e3aff4f6 | aliguori | return 0; |
416 | e3aff4f6 | aliguori | } |
417 | e3aff4f6 | aliguori | |
418 | e3aff4f6 | aliguori | static const cmdinfo_t read_cmd = { |
419 | e3aff4f6 | aliguori | .name = "read",
|
420 | e3aff4f6 | aliguori | .altname = "r",
|
421 | e3aff4f6 | aliguori | .cfunc = read_f, |
422 | e3aff4f6 | aliguori | .argmin = 2,
|
423 | e3aff4f6 | aliguori | .argmax = -1,
|
424 | ca94dbc7 | Kevin Wolf | .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len",
|
425 | e3aff4f6 | aliguori | .oneline = "reads a number of bytes at a specified offset",
|
426 | e3aff4f6 | aliguori | .help = read_help, |
427 | e3aff4f6 | aliguori | }; |
428 | e3aff4f6 | aliguori | |
429 | e3aff4f6 | aliguori | static const cmdinfo_t readv_cmd; |
430 | e3aff4f6 | aliguori | |
431 | e3aff4f6 | aliguori | static void |
432 | e3aff4f6 | aliguori | readv_help(void)
|
433 | e3aff4f6 | aliguori | { |
434 | e3aff4f6 | aliguori | printf( |
435 | e3aff4f6 | aliguori | "\n"
|
436 | e3aff4f6 | aliguori | " reads a range of bytes from the given offset into multiple buffers\n"
|
437 | e3aff4f6 | aliguori | "\n"
|
438 | e3aff4f6 | aliguori | " Example:\n"
|
439 | e3aff4f6 | aliguori | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n"
|
440 | e3aff4f6 | aliguori | "\n"
|
441 | e3aff4f6 | aliguori | " Reads a segment of the currently open file, optionally dumping it to the\n"
|
442 | e3aff4f6 | aliguori | " standard output stream (with -v option) for subsequent inspection.\n"
|
443 | e3aff4f6 | aliguori | " Uses multiple iovec buffers if more than one byte range is specified.\n"
|
444 | e3aff4f6 | aliguori | " -C, -- report statistics in a machine parsable format\n"
|
445 | c48101ae | aliguori | " -P, -- use a pattern to verify read data\n"
|
446 | e3aff4f6 | aliguori | " -v, -- dump buffer to standard output\n"
|
447 | e3aff4f6 | aliguori | " -q, -- quite mode, do not show I/O statistics\n"
|
448 | e3aff4f6 | aliguori | "\n");
|
449 | e3aff4f6 | aliguori | } |
450 | e3aff4f6 | aliguori | |
451 | e3aff4f6 | aliguori | static int |
452 | e3aff4f6 | aliguori | readv_f(int argc, char **argv) |
453 | e3aff4f6 | aliguori | { |
454 | e3aff4f6 | aliguori | struct timeval t1, t2;
|
455 | e3aff4f6 | aliguori | int Cflag = 0, qflag = 0, vflag = 0; |
456 | e3aff4f6 | aliguori | int c, cnt;
|
457 | cf57298a | Christoph Hellwig | char *buf;
|
458 | e3aff4f6 | aliguori | int64_t offset; |
459 | cf57298a | Christoph Hellwig | int total;
|
460 | cf57298a | Christoph Hellwig | int nr_iov;
|
461 | e3aff4f6 | aliguori | QEMUIOVector qiov; |
462 | c48101ae | aliguori | int pattern = 0; |
463 | c48101ae | aliguori | int Pflag = 0; |
464 | e3aff4f6 | aliguori | |
465 | c48101ae | aliguori | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
466 | e3aff4f6 | aliguori | switch (c) {
|
467 | e3aff4f6 | aliguori | case 'C': |
468 | e3aff4f6 | aliguori | Cflag = 1;
|
469 | e3aff4f6 | aliguori | break;
|
470 | c48101ae | aliguori | case 'P': |
471 | c48101ae | aliguori | Pflag = 1;
|
472 | c48101ae | aliguori | pattern = atoi(optarg); |
473 | c48101ae | aliguori | break;
|
474 | e3aff4f6 | aliguori | case 'q': |
475 | e3aff4f6 | aliguori | qflag = 1;
|
476 | e3aff4f6 | aliguori | break;
|
477 | e3aff4f6 | aliguori | case 'v': |
478 | e3aff4f6 | aliguori | vflag = 1;
|
479 | e3aff4f6 | aliguori | break;
|
480 | e3aff4f6 | aliguori | default:
|
481 | e3aff4f6 | aliguori | return command_usage(&readv_cmd);
|
482 | e3aff4f6 | aliguori | } |
483 | e3aff4f6 | aliguori | } |
484 | e3aff4f6 | aliguori | |
485 | e3aff4f6 | aliguori | if (optind > argc - 2) |
486 | e3aff4f6 | aliguori | return command_usage(&readv_cmd);
|
487 | e3aff4f6 | aliguori | |
488 | e3aff4f6 | aliguori | |
489 | e3aff4f6 | aliguori | offset = cvtnum(argv[optind]); |
490 | e3aff4f6 | aliguori | if (offset < 0) { |
491 | e3aff4f6 | aliguori | printf("non-numeric length argument -- %s\n", argv[optind]);
|
492 | e3aff4f6 | aliguori | return 0; |
493 | e3aff4f6 | aliguori | } |
494 | e3aff4f6 | aliguori | optind++; |
495 | e3aff4f6 | aliguori | |
496 | e3aff4f6 | aliguori | if (offset & 0x1ff) { |
497 | e3aff4f6 | aliguori | printf("offset %lld is not sector aligned\n",
|
498 | e3aff4f6 | aliguori | (long long)offset); |
499 | e3aff4f6 | aliguori | return 0; |
500 | e3aff4f6 | aliguori | } |
501 | e3aff4f6 | aliguori | |
502 | e3aff4f6 | aliguori | nr_iov = argc - optind; |
503 | cf57298a | Christoph Hellwig | buf = create_iovec(&qiov, &argv[optind], nr_iov, 0xab);
|
504 | e3aff4f6 | aliguori | |
505 | e3aff4f6 | aliguori | gettimeofday(&t1, NULL);
|
506 | e3aff4f6 | aliguori | cnt = do_aio_readv(&qiov, offset, &total); |
507 | e3aff4f6 | aliguori | gettimeofday(&t2, NULL);
|
508 | e3aff4f6 | aliguori | |
509 | e3aff4f6 | aliguori | if (cnt < 0) { |
510 | e3aff4f6 | aliguori | printf("readv failed: %s\n", strerror(-cnt));
|
511 | 7d8abfcb | Kevin Wolf | goto out;
|
512 | e3aff4f6 | aliguori | } |
513 | e3aff4f6 | aliguori | |
514 | c48101ae | aliguori | if (Pflag) {
|
515 | cf57298a | Christoph Hellwig | void* cmp_buf = malloc(qiov.size);
|
516 | cf57298a | Christoph Hellwig | memset(cmp_buf, pattern, qiov.size); |
517 | cf57298a | Christoph Hellwig | if (memcmp(buf, cmp_buf, qiov.size)) {
|
518 | c48101ae | aliguori | printf("Pattern verification failed at offset %lld, "
|
519 | cf57298a | Christoph Hellwig | "%zd bytes\n",
|
520 | cf57298a | Christoph Hellwig | (long long) offset, qiov.size); |
521 | c48101ae | aliguori | } |
522 | c48101ae | aliguori | free(cmp_buf); |
523 | c48101ae | aliguori | } |
524 | c48101ae | aliguori | |
525 | e3aff4f6 | aliguori | if (qflag)
|
526 | 7d8abfcb | Kevin Wolf | goto out;
|
527 | e3aff4f6 | aliguori | |
528 | e3aff4f6 | aliguori | if (vflag)
|
529 | e3aff4f6 | aliguori | dump_buffer(buf, offset, qiov.size); |
530 | e3aff4f6 | aliguori | |
531 | e3aff4f6 | aliguori | /* Finally, report back -- -C gives a parsable format */
|
532 | e3aff4f6 | aliguori | t2 = tsub(t2, t1); |
533 | e3aff4f6 | aliguori | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag);
|
534 | e3aff4f6 | aliguori | |
535 | 7d8abfcb | Kevin Wolf | out:
|
536 | e3aff4f6 | aliguori | qemu_io_free(buf); |
537 | e3aff4f6 | aliguori | return 0; |
538 | e3aff4f6 | aliguori | } |
539 | e3aff4f6 | aliguori | |
540 | e3aff4f6 | aliguori | static const cmdinfo_t readv_cmd = { |
541 | e3aff4f6 | aliguori | .name = "readv",
|
542 | e3aff4f6 | aliguori | .cfunc = readv_f, |
543 | e3aff4f6 | aliguori | .argmin = 2,
|
544 | e3aff4f6 | aliguori | .argmax = -1,
|
545 | c48101ae | aliguori | .args = "[-Cqv] [-P pattern ] off len [len..]",
|
546 | e3aff4f6 | aliguori | .oneline = "reads a number of bytes at a specified offset",
|
547 | e3aff4f6 | aliguori | .help = readv_help, |
548 | e3aff4f6 | aliguori | }; |
549 | e3aff4f6 | aliguori | |
550 | e3aff4f6 | aliguori | static const cmdinfo_t write_cmd; |
551 | e3aff4f6 | aliguori | |
552 | e3aff4f6 | aliguori | static void |
553 | e3aff4f6 | aliguori | write_help(void)
|
554 | e3aff4f6 | aliguori | { |
555 | e3aff4f6 | aliguori | printf( |
556 | e3aff4f6 | aliguori | "\n"
|
557 | e3aff4f6 | aliguori | " writes a range of bytes from the given offset\n"
|
558 | e3aff4f6 | aliguori | "\n"
|
559 | e3aff4f6 | aliguori | " Example:\n"
|
560 | e3aff4f6 | aliguori | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n"
|
561 | e3aff4f6 | aliguori | "\n"
|
562 | e3aff4f6 | aliguori | " Writes into a segment of the currently open file, using a buffer\n"
|
563 | e3aff4f6 | aliguori | " filled with a set pattern (0xcdcdcdcd).\n"
|
564 | ca94dbc7 | Kevin Wolf | " -b, -- write to the VM state rather than the virtual disk\n"
|
565 | e3aff4f6 | aliguori | " -p, -- use bdrv_pwrite to write the file\n"
|
566 | e3aff4f6 | aliguori | " -P, -- use different pattern to fill file\n"
|
567 | e3aff4f6 | aliguori | " -C, -- report statistics in a machine parsable format\n"
|
568 | e3aff4f6 | aliguori | " -q, -- quite mode, do not show I/O statistics\n"
|
569 | e3aff4f6 | aliguori | "\n");
|
570 | e3aff4f6 | aliguori | } |
571 | e3aff4f6 | aliguori | |
572 | e3aff4f6 | aliguori | static int |
573 | e3aff4f6 | aliguori | write_f(int argc, char **argv) |
574 | e3aff4f6 | aliguori | { |
575 | e3aff4f6 | aliguori | struct timeval t1, t2;
|
576 | ca94dbc7 | Kevin Wolf | int Cflag = 0, pflag = 0, qflag = 0, bflag = 0; |
577 | e3aff4f6 | aliguori | int c, cnt;
|
578 | e3aff4f6 | aliguori | char *buf;
|
579 | e3aff4f6 | aliguori | int64_t offset; |
580 | d4ec5228 | Paul Brook | int count;
|
581 | d4ec5228 | Paul Brook | /* Some compilers get confused and warn if this is not initialized. */
|
582 | d4ec5228 | Paul Brook | int total = 0; |
583 | e3aff4f6 | aliguori | int pattern = 0xcd; |
584 | e3aff4f6 | aliguori | |
585 | ca94dbc7 | Kevin Wolf | while ((c = getopt(argc, argv, "bCpP:q")) != EOF) { |
586 | e3aff4f6 | aliguori | switch (c) {
|
587 | ca94dbc7 | Kevin Wolf | case 'b': |
588 | ca94dbc7 | Kevin Wolf | bflag = 1;
|
589 | ca94dbc7 | Kevin Wolf | break;
|
590 | e3aff4f6 | aliguori | case 'C': |
591 | e3aff4f6 | aliguori | Cflag = 1;
|
592 | e3aff4f6 | aliguori | break;
|
593 | e3aff4f6 | aliguori | case 'p': |
594 | e3aff4f6 | aliguori | pflag = 1;
|
595 | e3aff4f6 | aliguori | break;
|
596 | e3aff4f6 | aliguori | case 'P': |
597 | e3aff4f6 | aliguori | pattern = atoi(optarg); |
598 | e3aff4f6 | aliguori | break;
|
599 | e3aff4f6 | aliguori | case 'q': |
600 | e3aff4f6 | aliguori | qflag = 1;
|
601 | e3aff4f6 | aliguori | break;
|
602 | e3aff4f6 | aliguori | default:
|
603 | e3aff4f6 | aliguori | return command_usage(&write_cmd);
|
604 | e3aff4f6 | aliguori | } |
605 | e3aff4f6 | aliguori | } |
606 | e3aff4f6 | aliguori | |
607 | e3aff4f6 | aliguori | if (optind != argc - 2) |
608 | e3aff4f6 | aliguori | return command_usage(&write_cmd);
|
609 | e3aff4f6 | aliguori | |
610 | ca94dbc7 | Kevin Wolf | if (bflag && pflag) {
|
611 | ca94dbc7 | Kevin Wolf | printf("-b and -p cannot be specified at the same time\n");
|
612 | ca94dbc7 | Kevin Wolf | return 0; |
613 | ca94dbc7 | Kevin Wolf | } |
614 | ca94dbc7 | Kevin Wolf | |
615 | e3aff4f6 | aliguori | offset = cvtnum(argv[optind]); |
616 | e3aff4f6 | aliguori | if (offset < 0) { |
617 | e3aff4f6 | aliguori | printf("non-numeric length argument -- %s\n", argv[optind]);
|
618 | e3aff4f6 | aliguori | return 0; |
619 | e3aff4f6 | aliguori | } |
620 | e3aff4f6 | aliguori | |
621 | e3aff4f6 | aliguori | optind++; |
622 | e3aff4f6 | aliguori | count = cvtnum(argv[optind]); |
623 | e3aff4f6 | aliguori | if (count < 0) { |
624 | e3aff4f6 | aliguori | printf("non-numeric length argument -- %s\n", argv[optind]);
|
625 | e3aff4f6 | aliguori | return 0; |
626 | e3aff4f6 | aliguori | } |
627 | e3aff4f6 | aliguori | |
628 | e3aff4f6 | aliguori | if (!pflag) {
|
629 | e3aff4f6 | aliguori | if (offset & 0x1ff) { |
630 | e3aff4f6 | aliguori | printf("offset %lld is not sector aligned\n",
|
631 | e3aff4f6 | aliguori | (long long)offset); |
632 | e3aff4f6 | aliguori | return 0; |
633 | e3aff4f6 | aliguori | } |
634 | e3aff4f6 | aliguori | |
635 | e3aff4f6 | aliguori | if (count & 0x1ff) { |
636 | e3aff4f6 | aliguori | printf("count %d is not sector aligned\n",
|
637 | e3aff4f6 | aliguori | count); |
638 | e3aff4f6 | aliguori | return 0; |
639 | e3aff4f6 | aliguori | } |
640 | e3aff4f6 | aliguori | } |
641 | e3aff4f6 | aliguori | |
642 | e3aff4f6 | aliguori | buf = qemu_io_alloc(count, pattern); |
643 | e3aff4f6 | aliguori | |
644 | e3aff4f6 | aliguori | gettimeofday(&t1, NULL);
|
645 | e3aff4f6 | aliguori | if (pflag)
|
646 | e3aff4f6 | aliguori | cnt = do_pwrite(buf, offset, count, &total); |
647 | ca94dbc7 | Kevin Wolf | else if (bflag) |
648 | ca94dbc7 | Kevin Wolf | cnt = do_save_vmstate(buf, offset, count, &total); |
649 | e3aff4f6 | aliguori | else
|
650 | e3aff4f6 | aliguori | cnt = do_write(buf, offset, count, &total); |
651 | e3aff4f6 | aliguori | gettimeofday(&t2, NULL);
|
652 | e3aff4f6 | aliguori | |
653 | e3aff4f6 | aliguori | if (cnt < 0) { |
654 | e3aff4f6 | aliguori | printf("write failed: %s\n", strerror(-cnt));
|
655 | 7d8abfcb | Kevin Wolf | goto out;
|
656 | e3aff4f6 | aliguori | } |
657 | e3aff4f6 | aliguori | |
658 | e3aff4f6 | aliguori | if (qflag)
|
659 | 7d8abfcb | Kevin Wolf | goto out;
|
660 | e3aff4f6 | aliguori | |
661 | e3aff4f6 | aliguori | /* Finally, report back -- -C gives a parsable format */
|
662 | e3aff4f6 | aliguori | t2 = tsub(t2, t1); |
663 | e3aff4f6 | aliguori | print_report("wrote", &t2, offset, count, total, cnt, Cflag);
|
664 | e3aff4f6 | aliguori | |
665 | 7d8abfcb | Kevin Wolf | out:
|
666 | e3aff4f6 | aliguori | qemu_io_free(buf); |
667 | e3aff4f6 | aliguori | |
668 | e3aff4f6 | aliguori | return 0; |
669 | e3aff4f6 | aliguori | } |
670 | e3aff4f6 | aliguori | |
671 | e3aff4f6 | aliguori | static const cmdinfo_t write_cmd = { |
672 | e3aff4f6 | aliguori | .name = "write",
|
673 | e3aff4f6 | aliguori | .altname = "w",
|
674 | e3aff4f6 | aliguori | .cfunc = write_f, |
675 | e3aff4f6 | aliguori | .argmin = 2,
|
676 | e3aff4f6 | aliguori | .argmax = -1,
|
677 | ca94dbc7 | Kevin Wolf | .args = "[-abCpq] [-P pattern ] off len",
|
678 | e3aff4f6 | aliguori | .oneline = "writes a number of bytes at a specified offset",
|
679 | e3aff4f6 | aliguori | .help = write_help, |
680 | e3aff4f6 | aliguori | }; |
681 | e3aff4f6 | aliguori | |
682 | e3aff4f6 | aliguori | static const cmdinfo_t writev_cmd; |
683 | e3aff4f6 | aliguori | |
684 | e3aff4f6 | aliguori | static void |
685 | e3aff4f6 | aliguori | writev_help(void)
|
686 | e3aff4f6 | aliguori | { |
687 | e3aff4f6 | aliguori | printf( |
688 | e3aff4f6 | aliguori | "\n"
|
689 | e3aff4f6 | aliguori | " writes a range of bytes from the given offset source from multiple buffers\n"
|
690 | e3aff4f6 | aliguori | "\n"
|
691 | e3aff4f6 | aliguori | " Example:\n"
|
692 | e3aff4f6 | aliguori | " 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
|
693 | e3aff4f6 | aliguori | "\n"
|
694 | e3aff4f6 | aliguori | " Writes into a segment of the currently open file, using a buffer\n"
|
695 | e3aff4f6 | aliguori | " filled with a set pattern (0xcdcdcdcd).\n"
|
696 | e3aff4f6 | aliguori | " -P, -- use different pattern to fill file\n"
|
697 | e3aff4f6 | aliguori | " -C, -- report statistics in a machine parsable format\n"
|
698 | e3aff4f6 | aliguori | " -q, -- quite mode, do not show I/O statistics\n"
|
699 | e3aff4f6 | aliguori | "\n");
|
700 | e3aff4f6 | aliguori | } |
701 | e3aff4f6 | aliguori | |
702 | e3aff4f6 | aliguori | static int |
703 | e3aff4f6 | aliguori | writev_f(int argc, char **argv) |
704 | e3aff4f6 | aliguori | { |
705 | e3aff4f6 | aliguori | struct timeval t1, t2;
|
706 | e3aff4f6 | aliguori | int Cflag = 0, qflag = 0; |
707 | e3aff4f6 | aliguori | int c, cnt;
|
708 | cf57298a | Christoph Hellwig | char *buf;
|
709 | e3aff4f6 | aliguori | int64_t offset; |
710 | cf57298a | Christoph Hellwig | int total;
|
711 | cf57298a | Christoph Hellwig | int nr_iov;
|
712 | e3aff4f6 | aliguori | int pattern = 0xcd; |
713 | e3aff4f6 | aliguori | QEMUIOVector qiov; |
714 | e3aff4f6 | aliguori | |
715 | e3aff4f6 | aliguori | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
716 | e3aff4f6 | aliguori | switch (c) {
|
717 | e3aff4f6 | aliguori | case 'C': |
718 | e3aff4f6 | aliguori | Cflag = 1;
|
719 | e3aff4f6 | aliguori | break;
|
720 | e3aff4f6 | aliguori | case 'q': |
721 | e3aff4f6 | aliguori | qflag = 1;
|
722 | e3aff4f6 | aliguori | break;
|
723 | e3aff4f6 | aliguori | case 'P': |
724 | e3aff4f6 | aliguori | pattern = atoi(optarg); |
725 | e3aff4f6 | aliguori | break;
|
726 | e3aff4f6 | aliguori | default:
|
727 | e3aff4f6 | aliguori | return command_usage(&writev_cmd);
|
728 | e3aff4f6 | aliguori | } |
729 | e3aff4f6 | aliguori | } |
730 | e3aff4f6 | aliguori | |
731 | e3aff4f6 | aliguori | if (optind > argc - 2) |
732 | e3aff4f6 | aliguori | return command_usage(&writev_cmd);
|
733 | e3aff4f6 | aliguori | |
734 | e3aff4f6 | aliguori | offset = cvtnum(argv[optind]); |
735 | e3aff4f6 | aliguori | if (offset < 0) { |
736 | e3aff4f6 | aliguori | printf("non-numeric length argument -- %s\n", argv[optind]);
|
737 | e3aff4f6 | aliguori | return 0; |
738 | e3aff4f6 | aliguori | } |
739 | e3aff4f6 | aliguori | optind++; |
740 | e3aff4f6 | aliguori | |
741 | e3aff4f6 | aliguori | if (offset & 0x1ff) { |
742 | e3aff4f6 | aliguori | printf("offset %lld is not sector aligned\n",
|
743 | e3aff4f6 | aliguori | (long long)offset); |
744 | e3aff4f6 | aliguori | return 0; |
745 | e3aff4f6 | aliguori | } |
746 | e3aff4f6 | aliguori | |
747 | e3aff4f6 | aliguori | nr_iov = argc - optind; |
748 | cf57298a | Christoph Hellwig | buf = create_iovec(&qiov, &argv[optind], nr_iov, pattern); |
749 | e3aff4f6 | aliguori | |
750 | e3aff4f6 | aliguori | gettimeofday(&t1, NULL);
|
751 | e3aff4f6 | aliguori | cnt = do_aio_writev(&qiov, offset, &total); |
752 | e3aff4f6 | aliguori | gettimeofday(&t2, NULL);
|
753 | e3aff4f6 | aliguori | |
754 | e3aff4f6 | aliguori | if (cnt < 0) { |
755 | e3aff4f6 | aliguori | printf("writev failed: %s\n", strerror(-cnt));
|
756 | 7d8abfcb | Kevin Wolf | goto out;
|
757 | e3aff4f6 | aliguori | } |
758 | e3aff4f6 | aliguori | |
759 | e3aff4f6 | aliguori | if (qflag)
|
760 | 7d8abfcb | Kevin Wolf | goto out;
|
761 | e3aff4f6 | aliguori | |
762 | e3aff4f6 | aliguori | /* Finally, report back -- -C gives a parsable format */
|
763 | e3aff4f6 | aliguori | t2 = tsub(t2, t1); |
764 | e3aff4f6 | aliguori | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag);
|
765 | 7d8abfcb | Kevin Wolf | out:
|
766 | e3aff4f6 | aliguori | qemu_io_free(buf); |
767 | e3aff4f6 | aliguori | return 0; |
768 | e3aff4f6 | aliguori | } |
769 | e3aff4f6 | aliguori | |
770 | e3aff4f6 | aliguori | static const cmdinfo_t writev_cmd = { |
771 | e3aff4f6 | aliguori | .name = "writev",
|
772 | e3aff4f6 | aliguori | .cfunc = writev_f, |
773 | e3aff4f6 | aliguori | .argmin = 2,
|
774 | e3aff4f6 | aliguori | .argmax = -1,
|
775 | e3aff4f6 | aliguori | .args = "[-Cq] [-P pattern ] off len [len..]",
|
776 | e3aff4f6 | aliguori | .oneline = "writes a number of bytes at a specified offset",
|
777 | e3aff4f6 | aliguori | .help = writev_help, |
778 | e3aff4f6 | aliguori | }; |
779 | e3aff4f6 | aliguori | |
780 | 95533d5f | Christoph Hellwig | struct aio_ctx {
|
781 | 95533d5f | Christoph Hellwig | QEMUIOVector qiov; |
782 | 95533d5f | Christoph Hellwig | int64_t offset; |
783 | 95533d5f | Christoph Hellwig | char *buf;
|
784 | 95533d5f | Christoph Hellwig | int qflag;
|
785 | 95533d5f | Christoph Hellwig | int vflag;
|
786 | 95533d5f | Christoph Hellwig | int Cflag;
|
787 | 95533d5f | Christoph Hellwig | int Pflag;
|
788 | 95533d5f | Christoph Hellwig | int pattern;
|
789 | 95533d5f | Christoph Hellwig | struct timeval t1;
|
790 | 95533d5f | Christoph Hellwig | }; |
791 | 95533d5f | Christoph Hellwig | |
792 | 95533d5f | Christoph Hellwig | static void |
793 | 95533d5f | Christoph Hellwig | aio_write_done(void *opaque, int ret) |
794 | 95533d5f | Christoph Hellwig | { |
795 | 95533d5f | Christoph Hellwig | struct aio_ctx *ctx = opaque;
|
796 | 95533d5f | Christoph Hellwig | struct timeval t2;
|
797 | 95533d5f | Christoph Hellwig | |
798 | 95533d5f | Christoph Hellwig | gettimeofday(&t2, NULL);
|
799 | 95533d5f | Christoph Hellwig | |
800 | 95533d5f | Christoph Hellwig | |
801 | 95533d5f | Christoph Hellwig | if (ret < 0) { |
802 | 95533d5f | Christoph Hellwig | printf("aio_write failed: %s\n", strerror(-ret));
|
803 | 7d8abfcb | Kevin Wolf | goto out;
|
804 | 95533d5f | Christoph Hellwig | } |
805 | 95533d5f | Christoph Hellwig | |
806 | 230d4fa4 | Christoph Hellwig | if (ctx->qflag) {
|
807 | 7d8abfcb | Kevin Wolf | goto out;
|
808 | 230d4fa4 | Christoph Hellwig | } |
809 | 95533d5f | Christoph Hellwig | |
810 | 95533d5f | Christoph Hellwig | /* Finally, report back -- -C gives a parsable format */
|
811 | 95533d5f | Christoph Hellwig | t2 = tsub(t2, ctx->t1); |
812 | 230d4fa4 | Christoph Hellwig | print_report("wrote", &t2, ctx->offset, ctx->qiov.size,
|
813 | 230d4fa4 | Christoph Hellwig | ctx->qiov.size, 1, ctx->Cflag);
|
814 | 7d8abfcb | Kevin Wolf | out:
|
815 | 95533d5f | Christoph Hellwig | qemu_io_free(ctx->buf); |
816 | 95533d5f | Christoph Hellwig | free(ctx); |
817 | 95533d5f | Christoph Hellwig | } |
818 | 95533d5f | Christoph Hellwig | |
819 | 95533d5f | Christoph Hellwig | static const cmdinfo_t aio_read_cmd; |
820 | 95533d5f | Christoph Hellwig | |
821 | 95533d5f | Christoph Hellwig | static void |
822 | 95533d5f | Christoph Hellwig | aio_read_done(void *opaque, int ret) |
823 | 95533d5f | Christoph Hellwig | { |
824 | 95533d5f | Christoph Hellwig | struct aio_ctx *ctx = opaque;
|
825 | 95533d5f | Christoph Hellwig | struct timeval t2;
|
826 | 95533d5f | Christoph Hellwig | |
827 | 95533d5f | Christoph Hellwig | gettimeofday(&t2, NULL);
|
828 | 95533d5f | Christoph Hellwig | |
829 | 95533d5f | Christoph Hellwig | if (ret < 0) { |
830 | 95533d5f | Christoph Hellwig | printf("readv failed: %s\n", strerror(-ret));
|
831 | 7d8abfcb | Kevin Wolf | goto out;
|
832 | 95533d5f | Christoph Hellwig | } |
833 | 95533d5f | Christoph Hellwig | |
834 | 95533d5f | Christoph Hellwig | if (ctx->Pflag) {
|
835 | 230d4fa4 | Christoph Hellwig | void *cmp_buf = malloc(ctx->qiov.size);
|
836 | 95533d5f | Christoph Hellwig | |
837 | 230d4fa4 | Christoph Hellwig | memset(cmp_buf, ctx->pattern, ctx->qiov.size); |
838 | 230d4fa4 | Christoph Hellwig | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) {
|
839 | 95533d5f | Christoph Hellwig | printf("Pattern verification failed at offset %lld, "
|
840 | 230d4fa4 | Christoph Hellwig | "%zd bytes\n",
|
841 | 230d4fa4 | Christoph Hellwig | (long long) ctx->offset, ctx->qiov.size); |
842 | 95533d5f | Christoph Hellwig | } |
843 | 95533d5f | Christoph Hellwig | free(cmp_buf); |
844 | 95533d5f | Christoph Hellwig | } |
845 | 95533d5f | Christoph Hellwig | |
846 | 230d4fa4 | Christoph Hellwig | if (ctx->qflag) {
|
847 | 7d8abfcb | Kevin Wolf | goto out;
|
848 | 230d4fa4 | Christoph Hellwig | } |
849 | 95533d5f | Christoph Hellwig | |
850 | 230d4fa4 | Christoph Hellwig | if (ctx->vflag) {
|
851 | 230d4fa4 | Christoph Hellwig | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); |
852 | 230d4fa4 | Christoph Hellwig | } |
853 | 95533d5f | Christoph Hellwig | |
854 | 95533d5f | Christoph Hellwig | /* Finally, report back -- -C gives a parsable format */
|
855 | 95533d5f | Christoph Hellwig | t2 = tsub(t2, ctx->t1); |
856 | 230d4fa4 | Christoph Hellwig | print_report("read", &t2, ctx->offset, ctx->qiov.size,
|
857 | 230d4fa4 | Christoph Hellwig | ctx->qiov.size, 1, ctx->Cflag);
|
858 | 7d8abfcb | Kevin Wolf | out:
|
859 | 95533d5f | Christoph Hellwig | qemu_io_free(ctx->buf); |
860 | 95533d5f | Christoph Hellwig | free(ctx); |
861 | 95533d5f | Christoph Hellwig | } |
862 | 95533d5f | Christoph Hellwig | |
863 | 95533d5f | Christoph Hellwig | static void |
864 | 95533d5f | Christoph Hellwig | aio_read_help(void)
|
865 | 95533d5f | Christoph Hellwig | { |
866 | 95533d5f | Christoph Hellwig | printf( |
867 | 95533d5f | Christoph Hellwig | "\n"
|
868 | 95533d5f | Christoph Hellwig | " asynchronously reads a range of bytes from the given offset\n"
|
869 | 95533d5f | Christoph Hellwig | "\n"
|
870 | 95533d5f | Christoph Hellwig | " Example:\n"
|
871 | 95533d5f | Christoph Hellwig | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n"
|
872 | 95533d5f | Christoph Hellwig | "\n"
|
873 | 95533d5f | Christoph Hellwig | " Reads a segment of the currently open file, optionally dumping it to the\n"
|
874 | 95533d5f | Christoph Hellwig | " standard output stream (with -v option) for subsequent inspection.\n"
|
875 | 95533d5f | Christoph Hellwig | " The read is performed asynchronously and should the aio_flush command \n"
|
876 | 95533d5f | Christoph Hellwig | " should be used to ensure all outstanding aio requests have been completed\n"
|
877 | 95533d5f | Christoph Hellwig | " -C, -- report statistics in a machine parsable format\n"
|
878 | 95533d5f | Christoph Hellwig | " -P, -- use a pattern to verify read data\n"
|
879 | 95533d5f | Christoph Hellwig | " -v, -- dump buffer to standard output\n"
|
880 | 95533d5f | Christoph Hellwig | " -q, -- quite mode, do not show I/O statistics\n"
|
881 | 95533d5f | Christoph Hellwig | "\n");
|
882 | 95533d5f | Christoph Hellwig | } |
883 | 95533d5f | Christoph Hellwig | |
884 | 95533d5f | Christoph Hellwig | static int |
885 | 95533d5f | Christoph Hellwig | aio_read_f(int argc, char **argv) |
886 | 95533d5f | Christoph Hellwig | { |
887 | cf57298a | Christoph Hellwig | int nr_iov, c;
|
888 | 95533d5f | Christoph Hellwig | struct aio_ctx *ctx = calloc(1, sizeof(struct aio_ctx)); |
889 | 95533d5f | Christoph Hellwig | BlockDriverAIOCB *acb; |
890 | 95533d5f | Christoph Hellwig | |
891 | 95533d5f | Christoph Hellwig | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
892 | 95533d5f | Christoph Hellwig | switch (c) {
|
893 | 95533d5f | Christoph Hellwig | case 'C': |
894 | 95533d5f | Christoph Hellwig | ctx->Cflag = 1;
|
895 | 95533d5f | Christoph Hellwig | break;
|
896 | 95533d5f | Christoph Hellwig | case 'P': |
897 | 95533d5f | Christoph Hellwig | ctx->Pflag = 1;
|
898 | 95533d5f | Christoph Hellwig | ctx->pattern = atoi(optarg); |
899 | 95533d5f | Christoph Hellwig | break;
|
900 | 95533d5f | Christoph Hellwig | case 'q': |
901 | 95533d5f | Christoph Hellwig | ctx->qflag = 1;
|
902 | 95533d5f | Christoph Hellwig | break;
|
903 | 95533d5f | Christoph Hellwig | case 'v': |
904 | 95533d5f | Christoph Hellwig | ctx->vflag = 1;
|
905 | 95533d5f | Christoph Hellwig | break;
|
906 | 95533d5f | Christoph Hellwig | default:
|
907 | 7d8abfcb | Kevin Wolf | free(ctx); |
908 | 95533d5f | Christoph Hellwig | return command_usage(&aio_read_cmd);
|
909 | 95533d5f | Christoph Hellwig | } |
910 | 95533d5f | Christoph Hellwig | } |
911 | 95533d5f | Christoph Hellwig | |
912 | 7d8abfcb | Kevin Wolf | if (optind > argc - 2) { |
913 | 7d8abfcb | Kevin Wolf | free(ctx); |
914 | 95533d5f | Christoph Hellwig | return command_usage(&aio_read_cmd);
|
915 | 7d8abfcb | Kevin Wolf | } |
916 | 95533d5f | Christoph Hellwig | |
917 | 95533d5f | Christoph Hellwig | ctx->offset = cvtnum(argv[optind]); |
918 | 95533d5f | Christoph Hellwig | if (ctx->offset < 0) { |
919 | 95533d5f | Christoph Hellwig | printf("non-numeric length argument -- %s\n", argv[optind]);
|
920 | 7d8abfcb | Kevin Wolf | free(ctx); |
921 | 95533d5f | Christoph Hellwig | return 0; |
922 | 95533d5f | Christoph Hellwig | } |
923 | 95533d5f | Christoph Hellwig | optind++; |
924 | 95533d5f | Christoph Hellwig | |
925 | 95533d5f | Christoph Hellwig | if (ctx->offset & 0x1ff) { |
926 | 95533d5f | Christoph Hellwig | printf("offset %lld is not sector aligned\n",
|
927 | 95533d5f | Christoph Hellwig | (long long)ctx->offset); |
928 | 7d8abfcb | Kevin Wolf | free(ctx); |
929 | 95533d5f | Christoph Hellwig | return 0; |
930 | 95533d5f | Christoph Hellwig | } |
931 | 95533d5f | Christoph Hellwig | |
932 | 95533d5f | Christoph Hellwig | nr_iov = argc - optind; |
933 | cf57298a | Christoph Hellwig | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, 0xab);
|
934 | 95533d5f | Christoph Hellwig | |
935 | 95533d5f | Christoph Hellwig | gettimeofday(&ctx->t1, NULL);
|
936 | 95533d5f | Christoph Hellwig | acb = bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov,
|
937 | 95533d5f | Christoph Hellwig | ctx->qiov.size >> 9, aio_read_done, ctx);
|
938 | 7d8abfcb | Kevin Wolf | if (!acb) {
|
939 | 7d8abfcb | Kevin Wolf | free(ctx->buf); |
940 | 7d8abfcb | Kevin Wolf | free(ctx); |
941 | 95533d5f | Christoph Hellwig | return -EIO;
|
942 | 7d8abfcb | Kevin Wolf | } |
943 | 95533d5f | Christoph Hellwig | |
944 | 95533d5f | Christoph Hellwig | return 0; |
945 | 95533d5f | Christoph Hellwig | } |
946 | 95533d5f | Christoph Hellwig | |
947 | 95533d5f | Christoph Hellwig | static const cmdinfo_t aio_read_cmd = { |
948 | 95533d5f | Christoph Hellwig | .name = "aio_read",
|
949 | 95533d5f | Christoph Hellwig | .cfunc = aio_read_f, |
950 | 95533d5f | Christoph Hellwig | .argmin = 2,
|
951 | 95533d5f | Christoph Hellwig | .argmax = -1,
|
952 | 95533d5f | Christoph Hellwig | .args = "[-Cqv] [-P pattern ] off len [len..]",
|
953 | 95533d5f | Christoph Hellwig | .oneline = "asynchronously reads a number of bytes",
|
954 | 95533d5f | Christoph Hellwig | .help = aio_read_help, |
955 | 95533d5f | Christoph Hellwig | }; |
956 | 95533d5f | Christoph Hellwig | |
957 | 95533d5f | Christoph Hellwig | static const cmdinfo_t aio_write_cmd; |
958 | 95533d5f | Christoph Hellwig | |
959 | 95533d5f | Christoph Hellwig | static void |
960 | 95533d5f | Christoph Hellwig | aio_write_help(void)
|
961 | 95533d5f | Christoph Hellwig | { |
962 | 95533d5f | Christoph Hellwig | printf( |
963 | 95533d5f | Christoph Hellwig | "\n"
|
964 | 95533d5f | Christoph Hellwig | " asynchronously writes a range of bytes from the given offset source \n"
|
965 | 95533d5f | Christoph Hellwig | " from multiple buffers\n"
|
966 | 95533d5f | Christoph Hellwig | "\n"
|
967 | 95533d5f | Christoph Hellwig | " Example:\n"
|
968 | 95533d5f | Christoph Hellwig | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
|
969 | 95533d5f | Christoph Hellwig | "\n"
|
970 | 95533d5f | Christoph Hellwig | " Writes into a segment of the currently open file, using a buffer\n"
|
971 | 95533d5f | Christoph Hellwig | " filled with a set pattern (0xcdcdcdcd).\n"
|
972 | 95533d5f | Christoph Hellwig | " The write is performed asynchronously and should the aio_flush command \n"
|
973 | 95533d5f | Christoph Hellwig | " should be used to ensure all outstanding aio requests have been completed\n"
|
974 | 95533d5f | Christoph Hellwig | " -P, -- use different pattern to fill file\n"
|
975 | 95533d5f | Christoph Hellwig | " -C, -- report statistics in a machine parsable format\n"
|
976 | 95533d5f | Christoph Hellwig | " -q, -- quite mode, do not show I/O statistics\n"
|
977 | 95533d5f | Christoph Hellwig | "\n");
|
978 | 95533d5f | Christoph Hellwig | } |
979 | 95533d5f | Christoph Hellwig | |
980 | 95533d5f | Christoph Hellwig | |
981 | 95533d5f | Christoph Hellwig | static int |
982 | 95533d5f | Christoph Hellwig | aio_write_f(int argc, char **argv) |
983 | 95533d5f | Christoph Hellwig | { |
984 | cf57298a | Christoph Hellwig | int nr_iov, c;
|
985 | 95533d5f | Christoph Hellwig | int pattern = 0xcd; |
986 | 95533d5f | Christoph Hellwig | struct aio_ctx *ctx = calloc(1, sizeof(struct aio_ctx)); |
987 | 95533d5f | Christoph Hellwig | BlockDriverAIOCB *acb; |
988 | 95533d5f | Christoph Hellwig | |
989 | 95533d5f | Christoph Hellwig | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
990 | 95533d5f | Christoph Hellwig | switch (c) {
|
991 | 95533d5f | Christoph Hellwig | case 'C': |
992 | 95533d5f | Christoph Hellwig | ctx->Cflag = 1;
|
993 | 95533d5f | Christoph Hellwig | break;
|
994 | 95533d5f | Christoph Hellwig | case 'q': |
995 | 95533d5f | Christoph Hellwig | ctx->qflag = 1;
|
996 | 95533d5f | Christoph Hellwig | break;
|
997 | 95533d5f | Christoph Hellwig | case 'P': |
998 | 95533d5f | Christoph Hellwig | pattern = atoi(optarg); |
999 | 95533d5f | Christoph Hellwig | break;
|
1000 | 95533d5f | Christoph Hellwig | default:
|
1001 | 7d8abfcb | Kevin Wolf | free(ctx); |
1002 | 95533d5f | Christoph Hellwig | return command_usage(&aio_write_cmd);
|
1003 | 95533d5f | Christoph Hellwig | } |
1004 | 95533d5f | Christoph Hellwig | } |
1005 | 95533d5f | Christoph Hellwig | |
1006 | 7d8abfcb | Kevin Wolf | if (optind > argc - 2) { |
1007 | 7d8abfcb | Kevin Wolf | free(ctx); |
1008 | 95533d5f | Christoph Hellwig | return command_usage(&aio_write_cmd);
|
1009 | 7d8abfcb | Kevin Wolf | } |
1010 | 95533d5f | Christoph Hellwig | |
1011 | 95533d5f | Christoph Hellwig | ctx->offset = cvtnum(argv[optind]); |
1012 | 95533d5f | Christoph Hellwig | if (ctx->offset < 0) { |
1013 | 95533d5f | Christoph Hellwig | printf("non-numeric length argument -- %s\n", argv[optind]);
|
1014 | 7d8abfcb | Kevin Wolf | free(ctx); |
1015 | 95533d5f | Christoph Hellwig | return 0; |
1016 | 95533d5f | Christoph Hellwig | } |
1017 | 95533d5f | Christoph Hellwig | optind++; |
1018 | 95533d5f | Christoph Hellwig | |
1019 | 95533d5f | Christoph Hellwig | if (ctx->offset & 0x1ff) { |
1020 | 95533d5f | Christoph Hellwig | printf("offset %lld is not sector aligned\n",
|
1021 | 95533d5f | Christoph Hellwig | (long long)ctx->offset); |
1022 | 7d8abfcb | Kevin Wolf | free(ctx); |
1023 | 95533d5f | Christoph Hellwig | return 0; |
1024 | 95533d5f | Christoph Hellwig | } |
1025 | 95533d5f | Christoph Hellwig | |
1026 | 95533d5f | Christoph Hellwig | nr_iov = argc - optind; |
1027 | cf57298a | Christoph Hellwig | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, pattern); |
1028 | 95533d5f | Christoph Hellwig | |
1029 | 95533d5f | Christoph Hellwig | gettimeofday(&ctx->t1, NULL);
|
1030 | 95533d5f | Christoph Hellwig | acb = bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov,
|
1031 | 95533d5f | Christoph Hellwig | ctx->qiov.size >> 9, aio_write_done, ctx);
|
1032 | 7d8abfcb | Kevin Wolf | if (!acb) {
|
1033 | 7d8abfcb | Kevin Wolf | free(ctx->buf); |
1034 | 7d8abfcb | Kevin Wolf | free(ctx); |
1035 | 95533d5f | Christoph Hellwig | return -EIO;
|
1036 | 7d8abfcb | Kevin Wolf | } |
1037 | 95533d5f | Christoph Hellwig | |
1038 | 95533d5f | Christoph Hellwig | return 0; |
1039 | 95533d5f | Christoph Hellwig | } |
1040 | 95533d5f | Christoph Hellwig | |
1041 | 95533d5f | Christoph Hellwig | static const cmdinfo_t aio_write_cmd = { |
1042 | 95533d5f | Christoph Hellwig | .name = "aio_write",
|
1043 | 95533d5f | Christoph Hellwig | .cfunc = aio_write_f, |
1044 | 95533d5f | Christoph Hellwig | .argmin = 2,
|
1045 | 95533d5f | Christoph Hellwig | .argmax = -1,
|
1046 | 95533d5f | Christoph Hellwig | .args = "[-Cq] [-P pattern ] off len [len..]",
|
1047 | 95533d5f | Christoph Hellwig | .oneline = "asynchronously writes a number of bytes",
|
1048 | 95533d5f | Christoph Hellwig | .help = aio_write_help, |
1049 | 95533d5f | Christoph Hellwig | }; |
1050 | 95533d5f | Christoph Hellwig | |
1051 | 95533d5f | Christoph Hellwig | static int |
1052 | 95533d5f | Christoph Hellwig | aio_flush_f(int argc, char **argv) |
1053 | 95533d5f | Christoph Hellwig | { |
1054 | 95533d5f | Christoph Hellwig | qemu_aio_flush(); |
1055 | 95533d5f | Christoph Hellwig | return 0; |
1056 | 95533d5f | Christoph Hellwig | } |
1057 | 95533d5f | Christoph Hellwig | |
1058 | 95533d5f | Christoph Hellwig | static const cmdinfo_t aio_flush_cmd = { |
1059 | 95533d5f | Christoph Hellwig | .name = "aio_flush",
|
1060 | 95533d5f | Christoph Hellwig | .cfunc = aio_flush_f, |
1061 | 95533d5f | Christoph Hellwig | .oneline = "completes all outstanding aio requets"
|
1062 | 95533d5f | Christoph Hellwig | }; |
1063 | 95533d5f | Christoph Hellwig | |
1064 | e3aff4f6 | aliguori | static int |
1065 | e3aff4f6 | aliguori | flush_f(int argc, char **argv) |
1066 | e3aff4f6 | aliguori | { |
1067 | e3aff4f6 | aliguori | bdrv_flush(bs); |
1068 | e3aff4f6 | aliguori | return 0; |
1069 | e3aff4f6 | aliguori | } |
1070 | e3aff4f6 | aliguori | |
1071 | e3aff4f6 | aliguori | static const cmdinfo_t flush_cmd = { |
1072 | e3aff4f6 | aliguori | .name = "flush",
|
1073 | e3aff4f6 | aliguori | .altname = "f",
|
1074 | e3aff4f6 | aliguori | .cfunc = flush_f, |
1075 | e3aff4f6 | aliguori | .oneline = "flush all in-core file state to disk",
|
1076 | e3aff4f6 | aliguori | }; |
1077 | e3aff4f6 | aliguori | |
1078 | e3aff4f6 | aliguori | static int |
1079 | e3aff4f6 | aliguori | truncate_f(int argc, char **argv) |
1080 | e3aff4f6 | aliguori | { |
1081 | e3aff4f6 | aliguori | int64_t offset; |
1082 | e3aff4f6 | aliguori | int ret;
|
1083 | e3aff4f6 | aliguori | |
1084 | e3aff4f6 | aliguori | offset = cvtnum(argv[1]);
|
1085 | e3aff4f6 | aliguori | if (offset < 0) { |
1086 | e3aff4f6 | aliguori | printf("non-numeric truncate argument -- %s\n", argv[1]); |
1087 | e3aff4f6 | aliguori | return 0; |
1088 | e3aff4f6 | aliguori | } |
1089 | e3aff4f6 | aliguori | |
1090 | e3aff4f6 | aliguori | ret = bdrv_truncate(bs, offset); |
1091 | e3aff4f6 | aliguori | if (ret < 0) { |
1092 | e3aff4f6 | aliguori | printf("truncate: %s", strerror(ret));
|
1093 | e3aff4f6 | aliguori | return 0; |
1094 | e3aff4f6 | aliguori | } |
1095 | e3aff4f6 | aliguori | |
1096 | e3aff4f6 | aliguori | return 0; |
1097 | e3aff4f6 | aliguori | } |
1098 | e3aff4f6 | aliguori | |
1099 | e3aff4f6 | aliguori | static const cmdinfo_t truncate_cmd = { |
1100 | e3aff4f6 | aliguori | .name = "truncate",
|
1101 | e3aff4f6 | aliguori | .altname = "t",
|
1102 | e3aff4f6 | aliguori | .cfunc = truncate_f, |
1103 | e3aff4f6 | aliguori | .argmin = 1,
|
1104 | e3aff4f6 | aliguori | .argmax = 1,
|
1105 | e3aff4f6 | aliguori | .args = "off",
|
1106 | e3aff4f6 | aliguori | .oneline = "truncates the current file at the given offset",
|
1107 | e3aff4f6 | aliguori | }; |
1108 | e3aff4f6 | aliguori | |
1109 | e3aff4f6 | aliguori | static int |
1110 | e3aff4f6 | aliguori | length_f(int argc, char **argv) |
1111 | e3aff4f6 | aliguori | { |
1112 | e3aff4f6 | aliguori | int64_t size; |
1113 | e3aff4f6 | aliguori | char s1[64]; |
1114 | e3aff4f6 | aliguori | |
1115 | e3aff4f6 | aliguori | size = bdrv_getlength(bs); |
1116 | e3aff4f6 | aliguori | if (size < 0) { |
1117 | e3aff4f6 | aliguori | printf("getlength: %s", strerror(size));
|
1118 | e3aff4f6 | aliguori | return 0; |
1119 | e3aff4f6 | aliguori | } |
1120 | e3aff4f6 | aliguori | |
1121 | e3aff4f6 | aliguori | cvtstr(size, s1, sizeof(s1));
|
1122 | e3aff4f6 | aliguori | printf("%s\n", s1);
|
1123 | e3aff4f6 | aliguori | return 0; |
1124 | e3aff4f6 | aliguori | } |
1125 | e3aff4f6 | aliguori | |
1126 | e3aff4f6 | aliguori | |
1127 | e3aff4f6 | aliguori | static const cmdinfo_t length_cmd = { |
1128 | e3aff4f6 | aliguori | .name = "length",
|
1129 | e3aff4f6 | aliguori | .altname = "l",
|
1130 | e3aff4f6 | aliguori | .cfunc = length_f, |
1131 | e3aff4f6 | aliguori | .oneline = "gets the length of the current file",
|
1132 | e3aff4f6 | aliguori | }; |
1133 | e3aff4f6 | aliguori | |
1134 | e3aff4f6 | aliguori | |
1135 | e3aff4f6 | aliguori | static int |
1136 | e3aff4f6 | aliguori | info_f(int argc, char **argv) |
1137 | e3aff4f6 | aliguori | { |
1138 | e3aff4f6 | aliguori | BlockDriverInfo bdi; |
1139 | e3aff4f6 | aliguori | char s1[64], s2[64]; |
1140 | e3aff4f6 | aliguori | int ret;
|
1141 | e3aff4f6 | aliguori | |
1142 | e3aff4f6 | aliguori | if (bs->drv && bs->drv->format_name)
|
1143 | e3aff4f6 | aliguori | printf("format name: %s\n", bs->drv->format_name);
|
1144 | e3aff4f6 | aliguori | if (bs->drv && bs->drv->protocol_name)
|
1145 | e3aff4f6 | aliguori | printf("format name: %s\n", bs->drv->protocol_name);
|
1146 | e3aff4f6 | aliguori | |
1147 | e3aff4f6 | aliguori | ret = bdrv_get_info(bs, &bdi); |
1148 | e3aff4f6 | aliguori | if (ret)
|
1149 | e3aff4f6 | aliguori | return 0; |
1150 | e3aff4f6 | aliguori | |
1151 | e3aff4f6 | aliguori | cvtstr(bdi.cluster_size, s1, sizeof(s1));
|
1152 | e3aff4f6 | aliguori | cvtstr(bdi.vm_state_offset, s2, sizeof(s2));
|
1153 | e3aff4f6 | aliguori | |
1154 | e3aff4f6 | aliguori | printf("cluster size: %s\n", s1);
|
1155 | e3aff4f6 | aliguori | printf("vm state offset: %s\n", s2);
|
1156 | e3aff4f6 | aliguori | |
1157 | e3aff4f6 | aliguori | return 0; |
1158 | e3aff4f6 | aliguori | } |
1159 | e3aff4f6 | aliguori | |
1160 | e3aff4f6 | aliguori | |
1161 | e3aff4f6 | aliguori | |
1162 | e3aff4f6 | aliguori | static const cmdinfo_t info_cmd = { |
1163 | e3aff4f6 | aliguori | .name = "info",
|
1164 | e3aff4f6 | aliguori | .altname = "i",
|
1165 | e3aff4f6 | aliguori | .cfunc = info_f, |
1166 | e3aff4f6 | aliguori | .oneline = "prints information about the current file",
|
1167 | e3aff4f6 | aliguori | }; |
1168 | e3aff4f6 | aliguori | |
1169 | e3aff4f6 | aliguori | static int |
1170 | e3aff4f6 | aliguori | alloc_f(int argc, char **argv) |
1171 | e3aff4f6 | aliguori | { |
1172 | e3aff4f6 | aliguori | int64_t offset; |
1173 | e3aff4f6 | aliguori | int nb_sectors;
|
1174 | e3aff4f6 | aliguori | char s1[64]; |
1175 | e3aff4f6 | aliguori | int num;
|
1176 | e3aff4f6 | aliguori | int ret;
|
1177 | 838ab728 | aliguori | const char *retstr; |
1178 | e3aff4f6 | aliguori | |
1179 | e3aff4f6 | aliguori | offset = cvtnum(argv[1]);
|
1180 | e3aff4f6 | aliguori | if (offset & 0x1ff) { |
1181 | e3aff4f6 | aliguori | printf("offset %lld is not sector aligned\n",
|
1182 | e3aff4f6 | aliguori | (long long)offset); |
1183 | e3aff4f6 | aliguori | return 0; |
1184 | e3aff4f6 | aliguori | } |
1185 | e3aff4f6 | aliguori | |
1186 | e3aff4f6 | aliguori | if (argc == 3) |
1187 | e3aff4f6 | aliguori | nb_sectors = cvtnum(argv[2]);
|
1188 | e3aff4f6 | aliguori | else
|
1189 | e3aff4f6 | aliguori | nb_sectors = 1;
|
1190 | e3aff4f6 | aliguori | |
1191 | e3aff4f6 | aliguori | ret = bdrv_is_allocated(bs, offset >> 9, nb_sectors, &num);
|
1192 | e3aff4f6 | aliguori | |
1193 | e3aff4f6 | aliguori | cvtstr(offset, s1, sizeof(s1));
|
1194 | e3aff4f6 | aliguori | |
1195 | 838ab728 | aliguori | retstr = ret ? "allocated" : "not allocated"; |
1196 | e3aff4f6 | aliguori | if (nb_sectors == 1) |
1197 | 838ab728 | aliguori | printf("sector %s at offset %s\n", retstr, s1);
|
1198 | e3aff4f6 | aliguori | else
|
1199 | 838ab728 | aliguori | printf("%d/%d sectors %s at offset %s\n",
|
1200 | 838ab728 | aliguori | num, nb_sectors, retstr, s1); |
1201 | e3aff4f6 | aliguori | return 0; |
1202 | e3aff4f6 | aliguori | } |
1203 | e3aff4f6 | aliguori | |
1204 | e3aff4f6 | aliguori | static const cmdinfo_t alloc_cmd = { |
1205 | e3aff4f6 | aliguori | .name = "alloc",
|
1206 | e3aff4f6 | aliguori | .altname = "a",
|
1207 | e3aff4f6 | aliguori | .argmin = 1,
|
1208 | e3aff4f6 | aliguori | .argmax = 2,
|
1209 | e3aff4f6 | aliguori | .cfunc = alloc_f, |
1210 | e3aff4f6 | aliguori | .args = "off [sectors]",
|
1211 | e3aff4f6 | aliguori | .oneline = "checks if a sector is present in the file",
|
1212 | e3aff4f6 | aliguori | }; |
1213 | e3aff4f6 | aliguori | |
1214 | e3aff4f6 | aliguori | static int |
1215 | e3aff4f6 | aliguori | close_f(int argc, char **argv) |
1216 | e3aff4f6 | aliguori | { |
1217 | e3aff4f6 | aliguori | bdrv_close(bs); |
1218 | e3aff4f6 | aliguori | bs = NULL;
|
1219 | e3aff4f6 | aliguori | return 0; |
1220 | e3aff4f6 | aliguori | } |
1221 | e3aff4f6 | aliguori | |
1222 | e3aff4f6 | aliguori | static const cmdinfo_t close_cmd = { |
1223 | e3aff4f6 | aliguori | .name = "close",
|
1224 | e3aff4f6 | aliguori | .altname = "c",
|
1225 | e3aff4f6 | aliguori | .cfunc = close_f, |
1226 | e3aff4f6 | aliguori | .oneline = "close the current open file",
|
1227 | e3aff4f6 | aliguori | }; |
1228 | e3aff4f6 | aliguori | |
1229 | 9c4bab26 | Christoph Hellwig | static int openfile(char *name, int flags, int growable) |
1230 | e3aff4f6 | aliguori | { |
1231 | e3aff4f6 | aliguori | if (bs) {
|
1232 | e3aff4f6 | aliguori | fprintf(stderr, "file open already, try 'help close'\n");
|
1233 | e3aff4f6 | aliguori | return 1; |
1234 | e3aff4f6 | aliguori | } |
1235 | e3aff4f6 | aliguori | |
1236 | e3aff4f6 | aliguori | bs = bdrv_new("hda");
|
1237 | e3aff4f6 | aliguori | if (!bs)
|
1238 | e3aff4f6 | aliguori | return 1; |
1239 | e3aff4f6 | aliguori | |
1240 | 1db6947d | Christoph Hellwig | if (growable) {
|
1241 | 1db6947d | Christoph Hellwig | flags |= BDRV_O_FILE; |
1242 | 1db6947d | Christoph Hellwig | } |
1243 | 1db6947d | Christoph Hellwig | |
1244 | e3aff4f6 | aliguori | if (bdrv_open(bs, name, flags) == -1) { |
1245 | e3aff4f6 | aliguori | fprintf(stderr, "%s: can't open device %s\n", progname, name);
|
1246 | e3aff4f6 | aliguori | bs = NULL;
|
1247 | e3aff4f6 | aliguori | return 1; |
1248 | e3aff4f6 | aliguori | } |
1249 | e3aff4f6 | aliguori | |
1250 | 9c4bab26 | Christoph Hellwig | if (growable) {
|
1251 | 9c4bab26 | Christoph Hellwig | bs->growable = 1;
|
1252 | 9c4bab26 | Christoph Hellwig | } |
1253 | e3aff4f6 | aliguori | return 0; |
1254 | e3aff4f6 | aliguori | } |
1255 | e3aff4f6 | aliguori | |
1256 | e3aff4f6 | aliguori | static void |
1257 | e3aff4f6 | aliguori | open_help(void)
|
1258 | e3aff4f6 | aliguori | { |
1259 | e3aff4f6 | aliguori | printf( |
1260 | e3aff4f6 | aliguori | "\n"
|
1261 | e3aff4f6 | aliguori | " opens a new file in the requested mode\n"
|
1262 | e3aff4f6 | aliguori | "\n"
|
1263 | e3aff4f6 | aliguori | " Example:\n"
|
1264 | e3aff4f6 | aliguori | " 'open -Cn /tmp/data' - creates/opens data file read-write and uncached\n"
|
1265 | e3aff4f6 | aliguori | "\n"
|
1266 | e3aff4f6 | aliguori | " Opens a file for subsequent use by all of the other qemu-io commands.\n"
|
1267 | e3aff4f6 | aliguori | " -C, -- create new file if it doesn't exist\n"
|
1268 | e3aff4f6 | aliguori | " -r, -- open file read-only\n"
|
1269 | e3aff4f6 | aliguori | " -s, -- use snapshot file\n"
|
1270 | e3aff4f6 | aliguori | " -n, -- disable host cache\n"
|
1271 | 9c4bab26 | Christoph Hellwig | " -g, -- allow file to grow (only applies to protocols)"
|
1272 | e3aff4f6 | aliguori | "\n");
|
1273 | e3aff4f6 | aliguori | } |
1274 | e3aff4f6 | aliguori | |
1275 | e3aff4f6 | aliguori | static const cmdinfo_t open_cmd; |
1276 | e3aff4f6 | aliguori | |
1277 | e3aff4f6 | aliguori | static int |
1278 | e3aff4f6 | aliguori | open_f(int argc, char **argv) |
1279 | e3aff4f6 | aliguori | { |
1280 | e3aff4f6 | aliguori | int flags = 0; |
1281 | e3aff4f6 | aliguori | int readonly = 0; |
1282 | 9c4bab26 | Christoph Hellwig | int growable = 0; |
1283 | e3aff4f6 | aliguori | int c;
|
1284 | e3aff4f6 | aliguori | |
1285 | 9c4bab26 | Christoph Hellwig | while ((c = getopt(argc, argv, "snCrg")) != EOF) { |
1286 | e3aff4f6 | aliguori | switch (c) {
|
1287 | e3aff4f6 | aliguori | case 's': |
1288 | e3aff4f6 | aliguori | flags |= BDRV_O_SNAPSHOT; |
1289 | e3aff4f6 | aliguori | break;
|
1290 | e3aff4f6 | aliguori | case 'n': |
1291 | e3aff4f6 | aliguori | flags |= BDRV_O_NOCACHE; |
1292 | e3aff4f6 | aliguori | break;
|
1293 | e3aff4f6 | aliguori | case 'C': |
1294 | e3aff4f6 | aliguori | flags |= BDRV_O_CREAT; |
1295 | e3aff4f6 | aliguori | break;
|
1296 | e3aff4f6 | aliguori | case 'r': |
1297 | e3aff4f6 | aliguori | readonly = 1;
|
1298 | e3aff4f6 | aliguori | break;
|
1299 | 9c4bab26 | Christoph Hellwig | case 'g': |
1300 | 9c4bab26 | Christoph Hellwig | growable = 1;
|
1301 | 9c4bab26 | Christoph Hellwig | break;
|
1302 | e3aff4f6 | aliguori | default:
|
1303 | e3aff4f6 | aliguori | return command_usage(&open_cmd);
|
1304 | e3aff4f6 | aliguori | } |
1305 | e3aff4f6 | aliguori | } |
1306 | e3aff4f6 | aliguori | |
1307 | e3aff4f6 | aliguori | if (readonly)
|
1308 | e3aff4f6 | aliguori | flags |= BDRV_O_RDONLY; |
1309 | e3aff4f6 | aliguori | else
|
1310 | e3aff4f6 | aliguori | flags |= BDRV_O_RDWR; |
1311 | e3aff4f6 | aliguori | |
1312 | e3aff4f6 | aliguori | if (optind != argc - 1) |
1313 | e3aff4f6 | aliguori | return command_usage(&open_cmd);
|
1314 | e3aff4f6 | aliguori | |
1315 | 9c4bab26 | Christoph Hellwig | return openfile(argv[optind], flags, growable);
|
1316 | e3aff4f6 | aliguori | } |
1317 | e3aff4f6 | aliguori | |
1318 | e3aff4f6 | aliguori | static const cmdinfo_t open_cmd = { |
1319 | e3aff4f6 | aliguori | .name = "open",
|
1320 | e3aff4f6 | aliguori | .altname = "o",
|
1321 | e3aff4f6 | aliguori | .cfunc = open_f, |
1322 | e3aff4f6 | aliguori | .argmin = 1,
|
1323 | e3aff4f6 | aliguori | .argmax = -1,
|
1324 | e3aff4f6 | aliguori | .flags = CMD_NOFILE_OK, |
1325 | e3aff4f6 | aliguori | .args = "[-Crsn] [path]",
|
1326 | e3aff4f6 | aliguori | .oneline = "open the file specified by path",
|
1327 | e3aff4f6 | aliguori | .help = open_help, |
1328 | e3aff4f6 | aliguori | }; |
1329 | e3aff4f6 | aliguori | |
1330 | e3aff4f6 | aliguori | static int |
1331 | e3aff4f6 | aliguori | init_args_command( |
1332 | e3aff4f6 | aliguori | int index)
|
1333 | e3aff4f6 | aliguori | { |
1334 | e3aff4f6 | aliguori | /* only one device allowed so far */
|
1335 | e3aff4f6 | aliguori | if (index >= 1) |
1336 | e3aff4f6 | aliguori | return 0; |
1337 | e3aff4f6 | aliguori | return ++index;
|
1338 | e3aff4f6 | aliguori | } |
1339 | e3aff4f6 | aliguori | |
1340 | e3aff4f6 | aliguori | static int |
1341 | e3aff4f6 | aliguori | init_check_command( |
1342 | e3aff4f6 | aliguori | const cmdinfo_t *ct)
|
1343 | e3aff4f6 | aliguori | { |
1344 | e3aff4f6 | aliguori | if (ct->flags & CMD_FLAG_GLOBAL)
|
1345 | e3aff4f6 | aliguori | return 1; |
1346 | e3aff4f6 | aliguori | if (!(ct->flags & CMD_NOFILE_OK) && !bs) {
|
1347 | e3aff4f6 | aliguori | fprintf(stderr, "no file open, try 'help open'\n");
|
1348 | e3aff4f6 | aliguori | return 0; |
1349 | e3aff4f6 | aliguori | } |
1350 | e3aff4f6 | aliguori | return 1; |
1351 | e3aff4f6 | aliguori | } |
1352 | e3aff4f6 | aliguori | |
1353 | e3aff4f6 | aliguori | static void usage(const char *name) |
1354 | e3aff4f6 | aliguori | { |
1355 | e3aff4f6 | aliguori | printf( |
1356 | e3aff4f6 | aliguori | "Usage: %s [-h] [-V] [-Crsnm] [-c cmd] ... [file]\n"
|
1357 | 84844a20 | Stefan Weil | "QEMU Disk exerciser\n"
|
1358 | e3aff4f6 | aliguori | "\n"
|
1359 | e3aff4f6 | aliguori | " -C, --create create new file if it doesn't exist\n"
|
1360 | e3aff4f6 | aliguori | " -c, --cmd command to execute\n"
|
1361 | e3aff4f6 | aliguori | " -r, --read-only export read-only\n"
|
1362 | e3aff4f6 | aliguori | " -s, --snapshot use snapshot file\n"
|
1363 | e3aff4f6 | aliguori | " -n, --nocache disable host cache\n"
|
1364 | 1db6947d | Christoph Hellwig | " -g, --growable allow file to grow (only applies to protocols)\n"
|
1365 | e3aff4f6 | aliguori | " -m, --misalign misalign allocations for O_DIRECT\n"
|
1366 | e3aff4f6 | aliguori | " -h, --help display this help and exit\n"
|
1367 | e3aff4f6 | aliguori | " -V, --version output version information and exit\n"
|
1368 | e3aff4f6 | aliguori | "\n",
|
1369 | e3aff4f6 | aliguori | name); |
1370 | e3aff4f6 | aliguori | } |
1371 | e3aff4f6 | aliguori | |
1372 | e3aff4f6 | aliguori | |
1373 | e3aff4f6 | aliguori | int main(int argc, char **argv) |
1374 | e3aff4f6 | aliguori | { |
1375 | e3aff4f6 | aliguori | int readonly = 0; |
1376 | 9c4bab26 | Christoph Hellwig | int growable = 0; |
1377 | 9c4bab26 | Christoph Hellwig | const char *sopt = "hVc:Crsnmg"; |
1378 | e3aff4f6 | aliguori | struct option lopt[] = {
|
1379 | e3aff4f6 | aliguori | { "help", 0, 0, 'h' }, |
1380 | e3aff4f6 | aliguori | { "version", 0, 0, 'V' }, |
1381 | e3aff4f6 | aliguori | { "offset", 1, 0, 'o' }, |
1382 | e3aff4f6 | aliguori | { "cmd", 1, 0, 'c' }, |
1383 | e3aff4f6 | aliguori | { "create", 0, 0, 'C' }, |
1384 | e3aff4f6 | aliguori | { "read-only", 0, 0, 'r' }, |
1385 | e3aff4f6 | aliguori | { "snapshot", 0, 0, 's' }, |
1386 | e3aff4f6 | aliguori | { "nocache", 0, 0, 'n' }, |
1387 | e3aff4f6 | aliguori | { "misalign", 0, 0, 'm' }, |
1388 | 9c4bab26 | Christoph Hellwig | { "growable", 0, 0, 'g' }, |
1389 | e3aff4f6 | aliguori | { NULL, 0, 0, 0 } |
1390 | e3aff4f6 | aliguori | }; |
1391 | e3aff4f6 | aliguori | int c;
|
1392 | e3aff4f6 | aliguori | int opt_index = 0; |
1393 | e3aff4f6 | aliguori | int flags = 0; |
1394 | e3aff4f6 | aliguori | |
1395 | e3aff4f6 | aliguori | progname = basename(argv[0]);
|
1396 | e3aff4f6 | aliguori | |
1397 | e3aff4f6 | aliguori | while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) { |
1398 | e3aff4f6 | aliguori | switch (c) {
|
1399 | e3aff4f6 | aliguori | case 's': |
1400 | e3aff4f6 | aliguori | flags |= BDRV_O_SNAPSHOT; |
1401 | e3aff4f6 | aliguori | break;
|
1402 | e3aff4f6 | aliguori | case 'n': |
1403 | e3aff4f6 | aliguori | flags |= BDRV_O_NOCACHE; |
1404 | e3aff4f6 | aliguori | break;
|
1405 | e3aff4f6 | aliguori | case 'c': |
1406 | e3aff4f6 | aliguori | add_user_command(optarg); |
1407 | e3aff4f6 | aliguori | break;
|
1408 | e3aff4f6 | aliguori | case 'C': |
1409 | e3aff4f6 | aliguori | flags |= BDRV_O_CREAT; |
1410 | e3aff4f6 | aliguori | break;
|
1411 | e3aff4f6 | aliguori | case 'r': |
1412 | e3aff4f6 | aliguori | readonly = 1;
|
1413 | e3aff4f6 | aliguori | break;
|
1414 | e3aff4f6 | aliguori | case 'm': |
1415 | e3aff4f6 | aliguori | misalign = 1;
|
1416 | e3aff4f6 | aliguori | break;
|
1417 | 9c4bab26 | Christoph Hellwig | case 'g': |
1418 | 9c4bab26 | Christoph Hellwig | growable = 1;
|
1419 | 9c4bab26 | Christoph Hellwig | break;
|
1420 | e3aff4f6 | aliguori | case 'V': |
1421 | e3aff4f6 | aliguori | printf("%s version %s\n", progname, VERSION);
|
1422 | e3aff4f6 | aliguori | exit(0);
|
1423 | e3aff4f6 | aliguori | case 'h': |
1424 | e3aff4f6 | aliguori | usage(progname); |
1425 | e3aff4f6 | aliguori | exit(0);
|
1426 | e3aff4f6 | aliguori | default:
|
1427 | e3aff4f6 | aliguori | usage(progname); |
1428 | e3aff4f6 | aliguori | exit(1);
|
1429 | e3aff4f6 | aliguori | } |
1430 | e3aff4f6 | aliguori | } |
1431 | e3aff4f6 | aliguori | |
1432 | e3aff4f6 | aliguori | if ((argc - optind) > 1) { |
1433 | e3aff4f6 | aliguori | usage(progname); |
1434 | e3aff4f6 | aliguori | exit(1);
|
1435 | e3aff4f6 | aliguori | } |
1436 | e3aff4f6 | aliguori | |
1437 | e3aff4f6 | aliguori | bdrv_init(); |
1438 | e3aff4f6 | aliguori | |
1439 | e3aff4f6 | aliguori | /* initialize commands */
|
1440 | e3aff4f6 | aliguori | quit_init(); |
1441 | e3aff4f6 | aliguori | help_init(); |
1442 | e3aff4f6 | aliguori | add_command(&open_cmd); |
1443 | e3aff4f6 | aliguori | add_command(&close_cmd); |
1444 | e3aff4f6 | aliguori | add_command(&read_cmd); |
1445 | e3aff4f6 | aliguori | add_command(&readv_cmd); |
1446 | e3aff4f6 | aliguori | add_command(&write_cmd); |
1447 | e3aff4f6 | aliguori | add_command(&writev_cmd); |
1448 | 95533d5f | Christoph Hellwig | add_command(&aio_read_cmd); |
1449 | 95533d5f | Christoph Hellwig | add_command(&aio_write_cmd); |
1450 | 95533d5f | Christoph Hellwig | add_command(&aio_flush_cmd); |
1451 | e3aff4f6 | aliguori | add_command(&flush_cmd); |
1452 | e3aff4f6 | aliguori | add_command(&truncate_cmd); |
1453 | e3aff4f6 | aliguori | add_command(&length_cmd); |
1454 | e3aff4f6 | aliguori | add_command(&info_cmd); |
1455 | e3aff4f6 | aliguori | add_command(&alloc_cmd); |
1456 | e3aff4f6 | aliguori | |
1457 | e3aff4f6 | aliguori | add_args_command(init_args_command); |
1458 | e3aff4f6 | aliguori | add_check_command(init_check_command); |
1459 | e3aff4f6 | aliguori | |
1460 | e3aff4f6 | aliguori | /* open the device */
|
1461 | e3aff4f6 | aliguori | if (readonly)
|
1462 | e3aff4f6 | aliguori | flags |= BDRV_O_RDONLY; |
1463 | e3aff4f6 | aliguori | else
|
1464 | e3aff4f6 | aliguori | flags |= BDRV_O_RDWR; |
1465 | e3aff4f6 | aliguori | |
1466 | e3aff4f6 | aliguori | if ((argc - optind) == 1) |
1467 | 9c4bab26 | Christoph Hellwig | openfile(argv[optind], flags, growable); |
1468 | e3aff4f6 | aliguori | command_loop(); |
1469 | e3aff4f6 | aliguori | |
1470 | 95533d5f | Christoph Hellwig | /*
|
1471 | 95533d5f | Christoph Hellwig | * Make sure all outstanding requests get flushed the program exits.
|
1472 | 95533d5f | Christoph Hellwig | */
|
1473 | 95533d5f | Christoph Hellwig | qemu_aio_flush(); |
1474 | 95533d5f | Christoph Hellwig | |
1475 | e3aff4f6 | aliguori | if (bs)
|
1476 | e3aff4f6 | aliguori | bdrv_close(bs); |
1477 | e3aff4f6 | aliguori | return 0; |
1478 | e3aff4f6 | aliguori | } |