| Checked Trace | |||
|---|---|---|---|
| linux_spec@[/nix/store/qf513g69n2gy4prf0yhgggwimyl8q7kd-fs_test] | sexp | stdout | stderr |
| Traced Execution | stdout | stderr |
|---|
| Script | script |
|---|
| 1 | # processing file 'adhoc_pread_tests-int.trace' ... |
| 2 | @type trace |
| 3 | # adhoc_pread_tests2: adhoc tests to check behaviour of read in various situations |
| 4 | |
| 5 | |
| 6 | # ############################################# |
| 7 | # initialization |
| 8 | # ############################################# |
| 9 | |
| 10 | # empty and non-empty directories to read from |
| 11 | mkdir "/empty_dir" 0o777 |
| 12 | Tau |
| 13 | RV_none |
| 14 | mkdir "/non_empty_dir" 0o777 |
| 15 | Tau |
| 16 | RV_none |
| 17 | |
| 18 | # create files with different contents in the non-empty directory |
| 19 | chdir "/non_empty_dir" |
| 20 | Tau |
| 21 | RV_none |
| 22 | |
| 23 | # "f1.txt" is empty |
| 24 | open_close "f1.txt" [O_CREAT;O_RDWR] 0o666 |
| 25 | Tau |
| 26 | RV_none |
| 27 | |
| 28 | # "f2.txt" contains some short text |
| 29 | open "f2.txt" [O_CREAT;O_RDWR] 0o666 |
| 30 | Tau |
| 31 | RV_num(3) |
| 32 | write! (FD 3) "Lorem ipsum dolor sit a" 23 |
| 33 | Tau |
| 34 | RV_num(23) |
| 35 | close (FD 3) |
| 36 | Tau |
| 37 | RV_none |
| 38 | |
| 39 | # "f3.txt" contains all kinds of strange characters |
| 40 | open "f3.txt" [O_CREAT;O_RDWR] 0o666 |
| 41 | Tau |
| 42 | RV_num(3) |
| 43 | write! (FD 3) "\"-#@/\000\001\001\243\b" 10 |
| 44 | Tau |
| 45 | RV_num(10) |
| 46 | close (FD 3) |
| 47 | Tau |
| 48 | RV_none |
| 49 | |
| 50 | |
| 51 | # ############################################# |
| 52 | # read on an empty file |
| 53 | # ############################################# |
| 54 | |
| 55 | # read nothing |
| 56 | open "f1.txt" [O_RDONLY] |
| 57 | Tau |
| 58 | RV_num(3) |
| 59 | pread (FD 3) 0 0 |
| 60 | Tau |
| 61 | RV_bytes("") |
| 62 | close (FD 3) |
| 63 | Tau |
| 64 | RV_none |
| 65 | |
| 66 | # read 1 char beyond end |
| 67 | open "f1.txt" [O_RDONLY] |
| 68 | Tau |
| 69 | RV_num(3) |
| 70 | pread (FD 3) 1 0 |
| 71 | Tau |
| 72 | RV_bytes("") |
| 73 | close (FD 3) |
| 74 | Tau |
| 75 | RV_none |
| 76 | |
| 77 | # read 1 char after seeking beyond end |
| 78 | open "f1.txt" [O_RDONLY] |
| 79 | Tau |
| 80 | RV_num(3) |
| 81 | pread (FD 3) 1 100 |
| 82 | Tau |
| 83 | RV_bytes("") |
| 84 | close (FD 3) |
| 85 | Tau |
| 86 | RV_none |
| 87 | |
| 88 | # read with negative offset |
| 89 | open "f1.txt" [O_RDONLY] |
| 90 | Tau |
| 91 | RV_num(3) |
| 92 | pread (FD 3) 1 -100 |
| 93 | Tau |
| 94 | EINVAL |
| 95 | close (FD 3) |
| 96 | Tau |
| 97 | RV_none |
| 98 | |
| 99 | |
| 100 | |
| 101 | # ############################################# |
| 102 | # read on a non-empty file |
| 103 | # ############################################# |
| 104 | |
| 105 | # "f2.txt" is 23 bytes long |
| 106 | |
| 107 | # pread 0 chars |
| 108 | open "f2.txt" [O_RDONLY] |
| 109 | Tau |
| 110 | RV_num(3) |
| 111 | pread (FD 3) 0 0 |
| 112 | Tau |
| 113 | RV_bytes("") |
| 114 | close (FD 3) |
| 115 | Tau |
| 116 | RV_none |
| 117 | |
| 118 | # read 0 chars |
| 119 | open "f2.txt" [O_RDONLY] |
| 120 | Tau |
| 121 | RV_num(3) |
| 122 | read (FD 3) 0 |
| 123 | Tau |
| 124 | RV_bytes("") |
| 125 | close (FD 3) |
| 126 | Tau |
| 127 | RV_none |
| 128 | |
| 129 | # pread 2 chars |
| 130 | open "f2.txt" [O_RDONLY] |
| 131 | Tau |
| 132 | RV_num(3) |
| 133 | pread (FD 3) 2 0 |
| 134 | Tau |
| 135 | RV_bytes("Lo") |
| 136 | close (FD 3) |
| 137 | Tau |
| 138 | RV_none |
| 139 | |
| 140 | # read 2 chars |
| 141 | open "f2.txt" [O_RDONLY] |
| 142 | Tau |
| 143 | RV_num(3) |
| 144 | read (FD 3) 2 |
| 145 | Tau |
| 146 | RV_bytes("Lo") |
| 147 | close (FD 3) |
| 148 | Tau |
| 149 | RV_none |
| 150 | |
| 151 | # pread 2 chars with offset 5 |
| 152 | open "f2.txt" [O_RDONLY] |
| 153 | Tau |
| 154 | RV_num(3) |
| 155 | pread (FD 3) 2 5 |
| 156 | Tau |
| 157 | RV_bytes(" i") |
| 158 | close (FD 3) |
| 159 | Tau |
| 160 | RV_none |
| 161 | |
| 162 | # read 2 chars and then 3, preads don't influence each other |
| 163 | open "f2.txt" [O_RDONLY] |
| 164 | Tau |
| 165 | RV_num(3) |
| 166 | pread (FD 3) 2 0 |
| 167 | Tau |
| 168 | RV_bytes("Lo") |
| 169 | pread (FD 3) 3 0 |
| 170 | Tau |
| 171 | RV_bytes("Lor") |
| 172 | close (FD 3) |
| 173 | Tau |
| 174 | RV_none |
| 175 | |
| 176 | # read 2 chars and then 3, reads influence each other |
| 177 | open "f2.txt" [O_RDONLY] |
| 178 | Tau |
| 179 | RV_num(3) |
| 180 | read (FD 3) 2 |
| 181 | Tau |
| 182 | RV_bytes("Lo") |
| 183 | read (FD 3) 3 |
| 184 | Tau |
| 185 | RV_bytes("rem") |
| 186 | close (FD 3) |
| 187 | Tau |
| 188 | RV_none |
| 189 | |
| 190 | # pread over end of file |
| 191 | open "f2.txt" [O_RDONLY] |
| 192 | Tau |
| 193 | RV_num(3) |
| 194 | pread (FD 3) 100 0 |
| 195 | Tau |
| 196 | RV_bytes("Lorem ipsum dolor sit a") |
| 197 | close (FD 3) |
| 198 | Tau |
| 199 | RV_none |
| 200 | |
| 201 | # read over end of file |
| 202 | open "f2.txt" [O_RDONLY] |
| 203 | Tau |
| 204 | RV_num(3) |
| 205 | read (FD 3) 100 |
| 206 | Tau |
| 207 | RV_bytes("Lorem ipsum dolor sit a") |
| 208 | close (FD 3) |
| 209 | Tau |
| 210 | RV_none |
| 211 | |
| 212 | # pread just after end |
| 213 | open "f2.txt" [O_RDONLY] |
| 214 | Tau |
| 215 | RV_num(3) |
| 216 | pread (FD 3) 1 23 |
| 217 | Tau |
| 218 | RV_bytes("") |
| 219 | close (FD 3) |
| 220 | Tau |
| 221 | RV_none |
| 222 | |
| 223 | # pread far beyond end |
| 224 | open "f2.txt" [O_RDONLY] |
| 225 | Tau |
| 226 | RV_num(3) |
| 227 | pread (FD 3) 1 100 |
| 228 | Tau |
| 229 | RV_bytes("") |
| 230 | close (FD 3) |
| 231 | Tau |
| 232 | RV_none |
| 233 | |
| 234 | # pread over end |
| 235 | open "f2.txt" [O_RDONLY] |
| 236 | Tau |
| 237 | RV_num(3) |
| 238 | pread (FD 3) 5 20 |
| 239 | Tau |
| 240 | RV_bytes("t a") |
| 241 | close (FD 3) |
| 242 | Tau |
| 243 | RV_none |
| 244 | |
| 245 | # pread with negative offset |
| 246 | open "f2.txt" [O_RDONLY] |
| 247 | Tau |
| 248 | RV_num(3) |
| 249 | pread (FD 3) 1 -100 |
| 250 | Tau |
| 251 | EINVAL |
| 252 | close (FD 3) |
| 253 | Tau |
| 254 | RV_none |
| 255 | |
| 256 | # multiple preads don't influence each other or reads |
| 257 | open "f2.txt" [O_RDONLY] |
| 258 | Tau |
| 259 | RV_num(3) |
| 260 | read (FD 3) 2 |
| 261 | Tau |
| 262 | RV_bytes("Lo") |
| 263 | pread (FD 3) 5 10 |
| 264 | Tau |
| 265 | RV_bytes("m dol") |
| 266 | read (FD 3) 3 |
| 267 | Tau |
| 268 | RV_bytes("rem") |
| 269 | pread (FD 3) 5 2 |
| 270 | Tau |
| 271 | RV_bytes("rem i") |
| 272 | read (FD 3) 2 |
| 273 | Tau |
| 274 | RV_bytes(" i") |
| 275 | close (FD 3) |
| 276 | Tau |
| 277 | RV_none |
| 278 | |
| 279 | # read is influenced by seek |
| 280 | open "f2.txt" [O_RDONLY] |
| 281 | Tau |
| 282 | RV_num(3) |
| 283 | lseek (FD 3) 6 SEEK_SET |
| 284 | Tau |
| 285 | RV_num(6) |
| 286 | read (FD 3) 5 |
| 287 | Tau |
| 288 | RV_bytes("ipsum") |
| 289 | close (FD 3) |
| 290 | Tau |
| 291 | RV_none |
| 292 | |
| 293 | # pread is not influenced by seek |
| 294 | open "f2.txt" [O_RDONLY] |
| 295 | Tau |
| 296 | RV_num(3) |
| 297 | lseek (FD 3) 7 SEEK_SET |
| 298 | Tau |
| 299 | RV_num(7) |
| 300 | pread (FD 3) 5 6 |
| 301 | Tau |
| 302 | RV_bytes("ipsum") |
| 303 | close (FD 3) |
| 304 | Tau |
| 305 | RV_none |
| 306 | |
| 307 | # ############################################# |
| 308 | # test reading of special chars |
| 309 | # ############################################# |
| 310 | |
| 311 | open "f3.txt" [O_RDONLY] |
| 312 | Tau |
| 313 | RV_num(3) |
| 314 | read (FD 3) 100 |
| 315 | Tau |
| 316 | RV_bytes("\"-#@/\000\001\001\243\b") |
| 317 | close (FD 3) |
| 318 | Tau |
| 319 | RV_none |
| 320 | |
| 321 | |
| 322 | # ############################################# |
| 323 | # reading from file-descriptors open for |
| 324 | # different modes |
| 325 | # ############################################# |
| 326 | |
| 327 | open "f2.txt" [O_RDONLY] |
| 328 | Tau |
| 329 | RV_num(3) |
| 330 | read (FD 3) 100 |
| 331 | Tau |
| 332 | RV_bytes("Lorem ipsum dolor sit a") |
| 333 | close (FD 3) |
| 334 | Tau |
| 335 | RV_none |
| 336 | |
| 337 | open "f2.txt" [O_WRONLY] |
| 338 | Tau |
| 339 | RV_num(3) |
| 340 | read (FD 3) 100 |
| 341 | Tau |
| 342 | EBADF |
| 343 | close (FD 3) |
| 344 | Tau |
| 345 | RV_none |
| 346 | |
| 347 | open "f2.txt" [O_RDWR] |
| 348 | Tau |
| 349 | RV_num(3) |
| 350 | read (FD 3) 100 |
| 351 | Tau |
| 352 | RV_bytes("Lorem ipsum dolor sit a") |
| 353 | close (FD 3) |
| 354 | Tau |
| 355 | RV_none |
| 356 | |
| 357 | # open a descriptor, remove permission on file |
| 358 | # and then read. Since descriptor is open |
| 359 | # that should be fine, but opening again is not |
| 360 | open "f2.txt" [O_RDONLY] |
| 361 | Tau |
| 362 | RV_num(3) |
| 363 | chmod "f2.txt" 0o000 |
| 364 | Tau |
| 365 | RV_none |
| 366 | read (FD 3) 100 |
| 367 | Tau |
| 368 | RV_bytes("Lorem ipsum dolor sit a") |
| 369 | close (FD 3) |
| 370 | Tau |
| 371 | RV_none |
| 372 | |
| 373 | open "f2.txt" [O_RDONLY] |
| 374 | Tau |
| 375 | RV_num(3) |
| 376 | read (FD 3) 100 |
| 377 | Tau |
| 378 | RV_bytes("Lorem ipsum dolor sit a") |
| 379 | close (FD 3) |
| 380 | Tau |
| 381 | RV_none |
| 382 | |
| 383 | chmod "f2.txt" 0o666 |
| 384 | Tau |
| 385 | RV_none |
| 386 | open "f2.txt" [O_RDONLY] |
| 387 | Tau |
| 388 | RV_num(3) |
| 389 | read (FD 3) 100 |
| 390 | Tau |
| 391 | RV_bytes("Lorem ipsum dolor sit a") |
| 392 | close (FD 3) |
| 393 | Tau |
| 394 | RV_none |
| 395 | |
| 396 | # ############################################# |
| 397 | # read on directories |
| 398 | # ############################################# |
| 399 | |
| 400 | open "/empty_dir" [O_RDONLY] |
| 401 | Tau |
| 402 | RV_num(3) |
| 403 | pread (FD 3) 0 0 |
| 404 | Tau |
| 405 | EISDIR |
| 406 | pread (FD 3) 1 0 |
| 407 | Tau |
| 408 | EISDIR |
| 409 | pread (FD 3) 1 1 |
| 410 | Tau |
| 411 | EISDIR |
| 412 | read (FD 3) 0 |
| 413 | Tau |
| 414 | EISDIR |
| 415 | read (FD 3) 1 |
| 416 | Tau |
| 417 | EISDIR |
| 418 | read (FD 3) 1 |
| 419 | Tau |
| 420 | EISDIR |
| 421 | close (FD 3) |
| 422 | Tau |
| 423 | RV_none |
| 424 | |
| 425 | open "/non_empty_dir" [O_RDONLY] |
| 426 | Tau |
| 427 | RV_num(3) |
| 428 | pread (FD 3) 0 0 |
| 429 | Tau |
| 430 | EISDIR |
| 431 | pread (FD 3) 1 0 |
| 432 | Tau |
| 433 | EISDIR |
| 434 | pread (FD 3) 1 1 |
| 435 | Tau |
| 436 | EISDIR |
| 437 | read (FD 3) 0 |
| 438 | Tau |
| 439 | EISDIR |
| 440 | read (FD 3) 1 |
| 441 | Tau |
| 442 | EISDIR |
| 443 | read (FD 3) 1 |
| 444 | Tau |
| 445 | EISDIR |
| 446 | close (FD 3) |
| 447 | Tau |
| 448 | RV_none |
| 449 | |
| 450 | |
| 451 | # ############################################# |
| 452 | # finished :-) |
| 453 | # ############################################# |
| 454 | |
| 455 | |
| 456 |