| #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 |