| 280 | long tell() { return reading >= 0 ? (info->compressedsize ? zfile.total_out : reading - info->offset) : -1; } |
| 281 | |
| 282 | bool seek(long pos, int whence) |
| 283 | { |
| 284 | if(reading < 0) return false; |
| 285 | if(!info->compressedsize) |
| 286 | { |
| 287 | switch(whence) |
| 288 | { |
| 289 | case SEEK_END: pos += info->offset + info->size; break; |
| 290 | case SEEK_CUR: pos += reading; break; |
| 291 | case SEEK_SET: pos += info->offset; break; |
| 292 | default: return false; |
| 293 | } |
| 294 | pos = clamp(pos, long(info->offset), long(info->offset + info->size)); |
| 295 | arch->owner = NULL; |
| 296 | if(!arch->data->seek(pos, SEEK_SET)) return false; |
| 297 | arch->owner = this; |
| 298 | reading = pos; |
| 299 | ended = false; |
| 300 | return true; |
| 301 | } |
| 302 | |
| 303 | switch(whence) |
| 304 | { |
| 305 | case SEEK_END: pos += info->size; break; |
| 306 | case SEEK_CUR: pos += zfile.total_out; break; |
| 307 | case SEEK_SET: break; |
| 308 | default: return false; |
| 309 | } |
| 310 | |
| 311 | if(pos >= (long)info->size) |
| 312 | { |
| 313 | reading = info->offset + info->compressedsize; |
| 314 | zfile.next_in += zfile.avail_in; |
| 315 | zfile.avail_in = 0; |
| 316 | zfile.total_in = info->compressedsize; |
| 317 | arch->owner = NULL; |
| 318 | ended = false; |
| 319 | return true; |
| 320 | } |
| 321 | |
| 322 | if(pos < 0) return false; |
| 323 | if(pos >= (long)zfile.total_out) pos -= zfile.total_out; |
| 324 | else |
| 325 | { |
| 326 | if(zfile.next_in && zfile.total_in <= uint(zfile.next_in - buf)) |
| 327 | { |
| 328 | zfile.avail_in += zfile.total_in; |
| 329 | zfile.next_in -= zfile.total_in; |
| 330 | } |
| 331 | else |
| 332 | { |
| 333 | arch->owner = NULL; |
| 334 | zfile.avail_in = 0; |
| 335 | zfile.next_in = NULL; |
| 336 | reading = info->offset; |
| 337 | } |
| 338 | inflateReset(&zfile); |
| 339 | } |
no test coverage detected