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include/linux/lzo.h
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#ifndef __LZO_H__ #define __LZO_H__ /* * LZO Public Kernel Interface * A mini subset of the LZO real-time data compression library * * Copyright (C) 1996-2005 Markus F.X.J. Oberhumer <markus@oberhumer.com> * * The full LZO package can be found at: * http://www.oberhumer.com/opensource/lzo/ * * Changed for kernel use by: * Nitin Gupta <nitingupta910@gmail.com> * Richard Purdie <rpurdie@openedhand.com> */ #define LZO1X_MEM_COMPRESS (16384 * sizeof(unsigned char *)) #define LZO1X_1_MEM_COMPRESS LZO1X_MEM_COMPRESS |
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#define lzo1x_worst_compress(x) ((x) + ((x) / 16) + 64 + 3) |
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/* This requires 'workmem' 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); /* 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) #endif |