diff options
Diffstat (limited to 'e2fsprogs/ext2fs/test_io.c')
-rw-r--r-- | e2fsprogs/ext2fs/test_io.c | 380 |
1 files changed, 0 insertions, 380 deletions
diff --git a/e2fsprogs/ext2fs/test_io.c b/e2fsprogs/ext2fs/test_io.c deleted file mode 100644 index bd74225c0..000000000 --- a/e2fsprogs/ext2fs/test_io.c +++ /dev/null | |||
@@ -1,380 +0,0 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * test_io.c --- This is the Test I/O interface. | ||
4 | * | ||
5 | * Copyright (C) 1996 Theodore Ts'o. | ||
6 | * | ||
7 | * %Begin-Header% | ||
8 | * This file may be redistributed under the terms of the GNU Public | ||
9 | * License. | ||
10 | * %End-Header% | ||
11 | */ | ||
12 | |||
13 | #include <stdio.h> | ||
14 | #include <string.h> | ||
15 | #if HAVE_UNISTD_H | ||
16 | #include <unistd.h> | ||
17 | #endif | ||
18 | #include <fcntl.h> | ||
19 | #include <time.h> | ||
20 | #if HAVE_SYS_STAT_H | ||
21 | #include <sys/stat.h> | ||
22 | #endif | ||
23 | #if HAVE_SYS_TYPES_H | ||
24 | #include <sys/types.h> | ||
25 | #endif | ||
26 | |||
27 | #include "ext2_fs.h" | ||
28 | #include "ext2fs.h" | ||
29 | |||
30 | /* | ||
31 | * For checking structure magic numbers... | ||
32 | */ | ||
33 | |||
34 | #define EXT2_CHECK_MAGIC(struct, code) \ | ||
35 | if ((struct)->magic != (code)) return (code) | ||
36 | |||
37 | struct test_private_data { | ||
38 | int magic; | ||
39 | io_channel real; | ||
40 | int flags; | ||
41 | FILE *outfile; | ||
42 | unsigned long block; | ||
43 | int read_abort_count, write_abort_count; | ||
44 | void (*read_blk)(unsigned long block, int count, errcode_t err); | ||
45 | void (*write_blk)(unsigned long block, int count, errcode_t err); | ||
46 | void (*set_blksize)(int blksize, errcode_t err); | ||
47 | void (*write_byte)(unsigned long block, int count, errcode_t err); | ||
48 | }; | ||
49 | |||
50 | static errcode_t test_open(const char *name, int flags, io_channel *channel); | ||
51 | static errcode_t test_close(io_channel channel); | ||
52 | static errcode_t test_set_blksize(io_channel channel, int blksize); | ||
53 | static errcode_t test_read_blk(io_channel channel, unsigned long block, | ||
54 | int count, void *data); | ||
55 | static errcode_t test_write_blk(io_channel channel, unsigned long block, | ||
56 | int count, const void *data); | ||
57 | static errcode_t test_flush(io_channel channel); | ||
58 | static errcode_t test_write_byte(io_channel channel, unsigned long offset, | ||
59 | int count, const void *buf); | ||
60 | static errcode_t test_set_option(io_channel channel, const char *option, | ||
61 | const char *arg); | ||
62 | |||
63 | static struct struct_io_manager struct_test_manager = { | ||
64 | EXT2_ET_MAGIC_IO_MANAGER, | ||
65 | "Test I/O Manager", | ||
66 | test_open, | ||
67 | test_close, | ||
68 | test_set_blksize, | ||
69 | test_read_blk, | ||
70 | test_write_blk, | ||
71 | test_flush, | ||
72 | test_write_byte, | ||
73 | test_set_option | ||
74 | }; | ||
75 | |||
76 | io_manager test_io_manager = &struct_test_manager; | ||
77 | |||
78 | /* | ||
79 | * These global variable can be set by the test program as | ||
80 | * necessary *before* calling test_open | ||
81 | */ | ||
82 | io_manager test_io_backing_manager = 0; | ||
83 | void (*test_io_cb_read_blk) | ||
84 | (unsigned long block, int count, errcode_t err) = 0; | ||
85 | void (*test_io_cb_write_blk) | ||
86 | (unsigned long block, int count, errcode_t err) = 0; | ||
87 | void (*test_io_cb_set_blksize) | ||
88 | (int blksize, errcode_t err) = 0; | ||
89 | void (*test_io_cb_write_byte) | ||
90 | (unsigned long block, int count, errcode_t err) = 0; | ||
91 | |||
92 | /* | ||
93 | * Test flags | ||
94 | */ | ||
95 | #define TEST_FLAG_READ 0x01 | ||
96 | #define TEST_FLAG_WRITE 0x02 | ||
97 | #define TEST_FLAG_SET_BLKSIZE 0x04 | ||
98 | #define TEST_FLAG_FLUSH 0x08 | ||
99 | #define TEST_FLAG_DUMP 0x10 | ||
100 | #define TEST_FLAG_SET_OPTION 0x20 | ||
101 | |||
102 | static void test_dump_block(io_channel channel, | ||
103 | struct test_private_data *data, | ||
104 | unsigned long block, const void *buf) | ||
105 | { | ||
106 | const unsigned char *cp; | ||
107 | FILE *f = data->outfile; | ||
108 | int i; | ||
109 | unsigned long cksum = 0; | ||
110 | |||
111 | for (i=0, cp = buf; i < channel->block_size; i++, cp++) { | ||
112 | cksum += *cp; | ||
113 | } | ||
114 | fprintf(f, "Contents of block %lu, checksum %08lu:\n", block, cksum); | ||
115 | for (i=0, cp = buf; i < channel->block_size; i++, cp++) { | ||
116 | if ((i % 16) == 0) | ||
117 | fprintf(f, "%04x: ", i); | ||
118 | fprintf(f, "%02x%c", *cp, ((i % 16) == 15) ? '\n' : ' '); | ||
119 | } | ||
120 | } | ||
121 | |||
122 | static void test_abort(io_channel channel, unsigned long block) | ||
123 | { | ||
124 | struct test_private_data *data; | ||
125 | FILE *f; | ||
126 | |||
127 | data = (struct test_private_data *) channel->private_data; | ||
128 | f = data->outfile; | ||
129 | test_flush(channel); | ||
130 | |||
131 | fprintf(f, "Aborting due to I/O to block %lu\n", block); | ||
132 | fflush(f); | ||
133 | abort(); | ||
134 | } | ||
135 | |||
136 | static errcode_t test_open(const char *name, int flags, io_channel *channel) | ||
137 | { | ||
138 | io_channel io = NULL; | ||
139 | struct test_private_data *data = NULL; | ||
140 | errcode_t retval; | ||
141 | char *value; | ||
142 | |||
143 | if (name == 0) | ||
144 | return EXT2_ET_BAD_DEVICE_NAME; | ||
145 | retval = ext2fs_get_mem(sizeof(struct struct_io_channel), &io); | ||
146 | if (retval) | ||
147 | return retval; | ||
148 | memset(io, 0, sizeof(struct struct_io_channel)); | ||
149 | io->magic = EXT2_ET_MAGIC_IO_CHANNEL; | ||
150 | retval = ext2fs_get_mem(sizeof(struct test_private_data), &data); | ||
151 | if (retval) { | ||
152 | retval = EXT2_ET_NO_MEMORY; | ||
153 | goto cleanup; | ||
154 | } | ||
155 | io->manager = test_io_manager; | ||
156 | retval = ext2fs_get_mem(strlen(name)+1, &io->name); | ||
157 | if (retval) | ||
158 | goto cleanup; | ||
159 | |||
160 | strcpy(io->name, name); | ||
161 | io->private_data = data; | ||
162 | io->block_size = 1024; | ||
163 | io->read_error = 0; | ||
164 | io->write_error = 0; | ||
165 | io->refcount = 1; | ||
166 | |||
167 | memset(data, 0, sizeof(struct test_private_data)); | ||
168 | data->magic = EXT2_ET_MAGIC_TEST_IO_CHANNEL; | ||
169 | if (test_io_backing_manager) { | ||
170 | retval = test_io_backing_manager->open(name, flags, | ||
171 | &data->real); | ||
172 | if (retval) | ||
173 | goto cleanup; | ||
174 | } else | ||
175 | data->real = 0; | ||
176 | data->read_blk = test_io_cb_read_blk; | ||
177 | data->write_blk = test_io_cb_write_blk; | ||
178 | data->set_blksize = test_io_cb_set_blksize; | ||
179 | data->write_byte = test_io_cb_write_byte; | ||
180 | |||
181 | data->outfile = NULL; | ||
182 | if ((value = getenv("TEST_IO_LOGFILE")) != NULL) | ||
183 | data->outfile = fopen(value, "w"); | ||
184 | if (!data->outfile) | ||
185 | data->outfile = stderr; | ||
186 | |||
187 | data->flags = 0; | ||
188 | if ((value = getenv("TEST_IO_FLAGS")) != NULL) | ||
189 | data->flags = strtoul(value, NULL, 0); | ||
190 | |||
191 | data->block = 0; | ||
192 | if ((value = getenv("TEST_IO_BLOCK")) != NULL) | ||
193 | data->block = strtoul(value, NULL, 0); | ||
194 | |||
195 | data->read_abort_count = 0; | ||
196 | if ((value = getenv("TEST_IO_READ_ABORT")) != NULL) | ||
197 | data->read_abort_count = strtoul(value, NULL, 0); | ||
198 | |||
199 | data->write_abort_count = 0; | ||
200 | if ((value = getenv("TEST_IO_WRITE_ABORT")) != NULL) | ||
201 | data->write_abort_count = strtoul(value, NULL, 0); | ||
202 | |||
203 | *channel = io; | ||
204 | return 0; | ||
205 | |||
206 | cleanup: | ||
207 | ext2fs_free_mem(&io); | ||
208 | ext2fs_free_mem(&data); | ||
209 | return retval; | ||
210 | } | ||
211 | |||
212 | static errcode_t test_close(io_channel channel) | ||
213 | { | ||
214 | struct test_private_data *data; | ||
215 | errcode_t retval = 0; | ||
216 | |||
217 | EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); | ||
218 | data = (struct test_private_data *) channel->private_data; | ||
219 | EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); | ||
220 | |||
221 | if (--channel->refcount > 0) | ||
222 | return 0; | ||
223 | |||
224 | if (data->real) | ||
225 | retval = io_channel_close(data->real); | ||
226 | |||
227 | if (data->outfile && data->outfile != stderr) | ||
228 | fclose(data->outfile); | ||
229 | |||
230 | ext2fs_free_mem(&channel->private_data); | ||
231 | ext2fs_free_mem(&channel->name); | ||
232 | ext2fs_free_mem(&channel); | ||
233 | return retval; | ||
234 | } | ||
235 | |||
236 | static errcode_t test_set_blksize(io_channel channel, int blksize) | ||
237 | { | ||
238 | struct test_private_data *data; | ||
239 | errcode_t retval = 0; | ||
240 | |||
241 | EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); | ||
242 | data = (struct test_private_data *) channel->private_data; | ||
243 | EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); | ||
244 | |||
245 | if (data->real) | ||
246 | retval = io_channel_set_blksize(data->real, blksize); | ||
247 | if (data->set_blksize) | ||
248 | data->set_blksize(blksize, retval); | ||
249 | if (data->flags & TEST_FLAG_SET_BLKSIZE) | ||
250 | fprintf(data->outfile, | ||
251 | "Test_io: set_blksize(%d) returned %s\n", | ||
252 | blksize, retval ? error_message(retval) : "OK"); | ||
253 | channel->block_size = blksize; | ||
254 | return retval; | ||
255 | } | ||
256 | |||
257 | |||
258 | static errcode_t test_read_blk(io_channel channel, unsigned long block, | ||
259 | int count, void *buf) | ||
260 | { | ||
261 | struct test_private_data *data; | ||
262 | errcode_t retval = 0; | ||
263 | |||
264 | EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); | ||
265 | data = (struct test_private_data *) channel->private_data; | ||
266 | EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); | ||
267 | |||
268 | if (data->real) | ||
269 | retval = io_channel_read_blk(data->real, block, count, buf); | ||
270 | if (data->read_blk) | ||
271 | data->read_blk(block, count, retval); | ||
272 | if (data->flags & TEST_FLAG_READ) | ||
273 | fprintf(data->outfile, | ||
274 | "Test_io: read_blk(%lu, %d) returned %s\n", | ||
275 | block, count, retval ? error_message(retval) : "OK"); | ||
276 | if (data->block && data->block == block) { | ||
277 | if (data->flags & TEST_FLAG_DUMP) | ||
278 | test_dump_block(channel, data, block, buf); | ||
279 | if (--data->read_abort_count == 0) | ||
280 | test_abort(channel, block); | ||
281 | } | ||
282 | return retval; | ||
283 | } | ||
284 | |||
285 | static errcode_t test_write_blk(io_channel channel, unsigned long block, | ||
286 | int count, const void *buf) | ||
287 | { | ||
288 | struct test_private_data *data; | ||
289 | errcode_t retval = 0; | ||
290 | |||
291 | EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); | ||
292 | data = (struct test_private_data *) channel->private_data; | ||
293 | EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); | ||
294 | |||
295 | if (data->real) | ||
296 | retval = io_channel_write_blk(data->real, block, count, buf); | ||
297 | if (data->write_blk) | ||
298 | data->write_blk(block, count, retval); | ||
299 | if (data->flags & TEST_FLAG_WRITE) | ||
300 | fprintf(data->outfile, | ||
301 | "Test_io: write_blk(%lu, %d) returned %s\n", | ||
302 | block, count, retval ? error_message(retval) : "OK"); | ||
303 | if (data->block && data->block == block) { | ||
304 | if (data->flags & TEST_FLAG_DUMP) | ||
305 | test_dump_block(channel, data, block, buf); | ||
306 | if (--data->write_abort_count == 0) | ||
307 | test_abort(channel, block); | ||
308 | } | ||
309 | return retval; | ||
310 | } | ||
311 | |||
312 | static errcode_t test_write_byte(io_channel channel, unsigned long offset, | ||
313 | int count, const void *buf) | ||
314 | { | ||
315 | struct test_private_data *data; | ||
316 | errcode_t retval = 0; | ||
317 | |||
318 | EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); | ||
319 | data = (struct test_private_data *) channel->private_data; | ||
320 | EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); | ||
321 | |||
322 | if (data->real && data->real->manager->write_byte) | ||
323 | retval = io_channel_write_byte(data->real, offset, count, buf); | ||
324 | if (data->write_byte) | ||
325 | data->write_byte(offset, count, retval); | ||
326 | if (data->flags & TEST_FLAG_WRITE) | ||
327 | fprintf(data->outfile, | ||
328 | "Test_io: write_byte(%lu, %d) returned %s\n", | ||
329 | offset, count, retval ? error_message(retval) : "OK"); | ||
330 | return retval; | ||
331 | } | ||
332 | |||
333 | /* | ||
334 | * Flush data buffers to disk. | ||
335 | */ | ||
336 | static errcode_t test_flush(io_channel channel) | ||
337 | { | ||
338 | struct test_private_data *data; | ||
339 | errcode_t retval = 0; | ||
340 | |||
341 | EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); | ||
342 | data = (struct test_private_data *) channel->private_data; | ||
343 | EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); | ||
344 | |||
345 | if (data->real) | ||
346 | retval = io_channel_flush(data->real); | ||
347 | |||
348 | if (data->flags & TEST_FLAG_FLUSH) | ||
349 | fprintf(data->outfile, "Test_io: flush() returned %s\n", | ||
350 | retval ? error_message(retval) : "OK"); | ||
351 | |||
352 | return retval; | ||
353 | } | ||
354 | |||
355 | static errcode_t test_set_option(io_channel channel, const char *option, | ||
356 | const char *arg) | ||
357 | { | ||
358 | struct test_private_data *data; | ||
359 | errcode_t retval = 0; | ||
360 | |||
361 | EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); | ||
362 | data = (struct test_private_data *) channel->private_data; | ||
363 | EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL); | ||
364 | |||
365 | |||
366 | if (data->flags & TEST_FLAG_SET_OPTION) | ||
367 | fprintf(data->outfile, "Test_io: set_option(%s, %s) ", | ||
368 | option, arg); | ||
369 | if (data->real && data->real->manager->set_option) { | ||
370 | retval = (data->real->manager->set_option)(data->real, | ||
371 | option, arg); | ||
372 | if (data->flags & TEST_FLAG_SET_OPTION) | ||
373 | fprintf(data->outfile, "returned %s\n", | ||
374 | retval ? error_message(retval) : "OK"); | ||
375 | } else { | ||
376 | if (data->flags & TEST_FLAG_SET_OPTION) | ||
377 | fprintf(data->outfile, "not implemented\n"); | ||
378 | } | ||
379 | return retval; | ||
380 | } | ||