mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 23:23:55 +08:00
daeb6b6fbe
Fix and improve comments in decompress/generic.h that describe the decompressor API. Also remove an unused definition, and rename INBUF_LEN in lib/decompress_inflate.c to conform to bzip2/lzma naming. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
#ifndef DECOMPRESS_GENERIC_H
|
|
#define DECOMPRESS_GENERIC_H
|
|
|
|
typedef int (*decompress_fn) (unsigned char *inbuf, int len,
|
|
int(*fill)(void*, unsigned int),
|
|
int(*flush)(void*, unsigned int),
|
|
unsigned char *outbuf,
|
|
int *posp,
|
|
void(*error)(char *x));
|
|
|
|
/* inbuf - input buffer
|
|
*len - len of pre-read data in inbuf
|
|
*fill - function to fill inbuf when empty
|
|
*flush - function to write out outbuf
|
|
*outbuf - output buffer
|
|
*posp - if non-null, input position (number of bytes read) will be
|
|
* returned here
|
|
*
|
|
*If len != 0, inbuf should contain all the necessary input data, and fill
|
|
*should be NULL
|
|
*If len = 0, inbuf can be NULL, in which case the decompressor will allocate
|
|
*the input buffer. If inbuf != NULL it must be at least XXX_IOBUF_SIZE bytes.
|
|
*fill will be called (repeatedly...) to read data, at most XXX_IOBUF_SIZE
|
|
*bytes should be read per call. Replace XXX with the appropriate decompressor
|
|
*name, i.e. LZMA_IOBUF_SIZE.
|
|
*
|
|
*If flush = NULL, outbuf must be large enough to buffer all the expected
|
|
*output. If flush != NULL, the output buffer will be allocated by the
|
|
*decompressor (outbuf = NULL), and the flush function will be called to
|
|
*flush the output buffer at the appropriate time (decompressor and stream
|
|
*dependent).
|
|
*/
|
|
|
|
|
|
/* Utility routine to detect the decompression method */
|
|
decompress_fn decompress_method(const unsigned char *inbuf, int len,
|
|
const char **name);
|
|
|
|
#endif
|