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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859/* SPDX-License-Identifier: GPL-2.0 */#ifndef __LZO_H__#define __LZO_H__/* * LZO Public Kernel Interface * A mini subset of the LZO real-time data compression library * * Copyright (C) 1996-2012 Markus F.X.J. Oberhumer <markus@oberhumer.com> * * The full LZO package can be found at: * http://www.oberhumer.com/opensource/lzo/ * * Changed for Linux kernel use by: * Nitin Gupta <nitingupta910@gmail.com> * Richard Purdie <rpurdie@openedhand.com> */
#define LZO1X_1_MEM_COMPRESS (8192 * sizeof(unsigned short))#define LZO1X_MEM_COMPRESS LZO1X_1_MEM_COMPRESS
#define lzo1x_worst_compress(x) ((x) + ((x) / 16) + 64 + 3 + 2)
/* This requires 'wrkmem' of size LZO1X_1_MEM_COMPRESS */int lzo1x_1_compress(const unsigned char *src, size_t src_len, unsigned char *dst, size_t *dst_len, void *wrkmem);
/* Same as above but does not write more than dst_len to dst. */int lzo1x_1_compress_safe(const unsigned char *src, size_t src_len, unsigned char *dst, size_t *dst_len, void *wrkmem);
/* This requires 'wrkmem' of size LZO1X_1_MEM_COMPRESS */int lzorle1x_1_compress(const unsigned char *src, size_t src_len, unsigned char *dst, size_t *dst_len, void *wrkmem);
/* Same as above but does not write more than dst_len to dst. */int lzorle1x_1_compress_safe(const unsigned char *src, size_t src_len, unsigned char *dst, size_t *dst_len, void *wrkmem);
/* safe decompression with overrun testing */int lzo1x_decompress_safe(const unsigned char *src, size_t src_len, unsigned char *dst, size_t *dst_len);
/* * Return values (< 0 = Error) */#define LZO_E_OK 0#define LZO_E_ERROR (-1)#define LZO_E_OUT_OF_MEMORY (-2)#define LZO_E_NOT_COMPRESSIBLE (-3)#define LZO_E_INPUT_OVERRUN (-4)#define LZO_E_OUTPUT_OVERRUN (-5)#define LZO_E_LOOKBEHIND_OVERRUN (-6)#define LZO_E_EOF_NOT_FOUND (-7)#define LZO_E_INPUT_NOT_CONSUMED (-8)#define LZO_E_NOT_YET_IMPLEMENTED (-9)#define LZO_E_INVALID_ARGUMENT (-10)
#endif