linux/lib/zlib_dfltcc/dfltcc_deflate.h
Mikhail Zaslonko 9fec9f8ea5 lib/zlib: Split deflate and inflate states for DFLTCC
Currently deflate and inflate both use a common state struct. There are
several variables in this struct that we don't need for inflate, and
more may be coming in the future. Therefore split them in two separate
structs.
Apart from that, introduce separate headers for dfltcc_deflate and
dfltcc_inflate.

This commit is based on:
  https://github.com/zlib-ng/zlib-ng/commit/c592b1b

Link: https://lkml.kernel.org/r/20230126131428.1222214-7-zaslonko@linux.ibm.com
Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-02 22:50:09 -08:00

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C

// SPDX-License-Identifier: Zlib
#ifndef DFLTCC_DEFLATE_H
#define DFLTCC_DEFLATE_H
#include "dfltcc.h"
/* External functions */
int dfltcc_can_deflate(z_streamp strm);
int dfltcc_deflate(z_streamp strm,
int flush,
block_state *result);
void dfltcc_reset_deflate_state(z_streamp strm);
#define DEFLATE_RESET_HOOK(strm) \
dfltcc_reset_deflate_state((strm))
#define DEFLATE_HOOK dfltcc_deflate
#define DEFLATE_NEED_CHECKSUM(strm) (!dfltcc_can_deflate((strm)))
#endif /* DFLTCC_DEFLATE_H */