| #ifndef DECOMPRESS_GENERIC_H |
| #define DECOMPRESS_GENERIC_H |
| |
| /* Minimal chunksize to be read. |
| *Bzip2 prefers at least 4096 |
| *Lzma prefers 0x10000 */ |
| #define COMPR_IOBUF_SIZE 4096 |
| |
| typedef int (*decompress_fn) (unsigned char *inbuf, int len, |
| int(*fill)(void*, unsigned int), |
| int(*writebb)(void*, unsigned int), |
| unsigned char *output, |
| int *posp, |
| void(*error)(char *x)); |
| |
| /* inbuf - input buffer |
| *len - len of pre-read data in inbuf |
| *fill - function to fill inbuf if empty |
| *writebb - function to write out outbug |
| *posp - if non-null, input position (number of bytes read) will be |
| * returned here |
| * |
| *If len != 0, the inbuf is initialized (with as much data), and fill |
| *should not be called |
| *If len = 0, the inbuf is allocated, but empty. Its size is IOBUF_SIZE |
| *fill should be called (repeatedly...) to read data, at most IOBUF_SIZE |
| */ |
| |
| /* Utility routine to detect the decompression method */ |
| decompress_fn decompress_method(const unsigned char *inbuf, int len, |
| const char **name); |
| |
| #endif |