| #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) |
| |
| /* 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); |
| |
| /* 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 |
