/tmp/buildd/xz-utils-5.0.0/src/liblzma/lz/lz_encoder_hash.h File Reference

Hash macros for match finders. More...

#include "check.h"

Defines
#define	hash_table   lzma_crc32_table[0]
#define	HASH_2_SIZE   (UINT32_C(1) << 10)
#define	HASH_3_SIZE   (UINT32_C(1) << 16)
#define	HASH_4_SIZE   (UINT32_C(1) << 20)
#define	HASH_2_MASK   (HASH_2_SIZE - 1)
#define	HASH_3_MASK   (HASH_3_SIZE - 1)
#define	HASH_4_MASK   (HASH_4_SIZE - 1)
#define	FIX_3_HASH_SIZE   (HASH_2_SIZE)
#define	FIX_4_HASH_SIZE   (HASH_2_SIZE + HASH_3_SIZE)
#define	FIX_5_HASH_SIZE   (HASH_2_SIZE + HASH_3_SIZE + HASH_4_SIZE)
#define	hash_2_calc()
#define	hash_3_calc()
#define	hash_4_calc()
#define	hash_5_calc()
#define	hash_zip_calc()
#define	mt_hash_2_calc()
#define	mt_hash_3_calc()
#define	mt_hash_4_calc()

---

Detailed Description

Hash macros for match finders.

---

Define Documentation

#define hash_2_calc

(

)

Value:

const uint32_t hash_value \
                        = (uint32_t)(cur[0]) | ((uint32_t)(cur[1]) << 8)

#define hash_3_calc

(

)

Value:

const uint32_t temp = hash_table[cur[0]] ^ cur[1]; \
        const uint32_t hash_2_value = temp & HASH_2_MASK; \
        const uint32_t hash_value \
                        = (temp ^ ((uint32_t)(cur[2]) << 8)) & mf->hash_mask

#define hash_4_calc

(

)

Value:

const uint32_t temp = hash_table[cur[0]] ^ cur[1]; \
        const uint32_t hash_2_value = temp & HASH_2_MASK; \
        const uint32_t hash_3_value \
                        = (temp ^ ((uint32_t)(cur[2]) << 8)) & HASH_3_MASK; \
        const uint32_t hash_value = (temp ^ ((uint32_t)(cur[2]) << 8) \
                        ^ (hash_table[cur[3]] << 5)) & mf->hash_mask

#define hash_5_calc

(

)

Value:

const uint32_t temp = hash_table[cur[0]] ^ cur[1]; \
        const uint32_t hash_2_value = temp & HASH_2_MASK; \
        const uint32_t hash_3_value \
                        = (temp ^ ((uint32_t)(cur[2]) << 8)) & HASH_3_MASK; \
        uint32_t hash_4_value = (temp ^ ((uint32_t)(cur[2]) << 8) ^ \
                        ^ hash_table[cur[3]] << 5); \
        const uint32_t hash_value \
                        = (hash_4_value ^ (hash_table[cur[4]] << 3)) \
                                & mf->hash_mask; \
        hash_4_value &= HASH_4_MASK

#define hash_zip_calc

(

)

Value:

const uint32_t hash_value \
                        = (((uint32_t)(cur[2]) | ((uint32_t)(cur[0]) << 8)) \
                                ^ hash_table[cur[1]]) & 0xFFFF

#define mt_hash_2_calc

(

)

Value:

const uint32_t hash_2_value \
                        = (hash_table[cur[0]] ^ cur[1]) & HASH_2_MASK

#define mt_hash_3_calc

(

)

Value:

const uint32_t temp = hash_table[cur[0]] ^ cur[1]; \
        const uint32_t hash_2_value = temp & HASH_2_MASK; \
        const uint32_t hash_3_value \
                        = (temp ^ ((uint32_t)(cur[2]) << 8)) & HASH_3_MASK

#define mt_hash_4_calc

(

)

Value:

const uint32_t temp = hash_table[cur[0]] ^ cur[1]; \
        const uint32_t hash_2_value = temp & HASH_2_MASK; \
        const uint32_t hash_3_value \
                        = (temp ^ ((uint32_t)(cur[2]) << 8)) & HASH_3_MASK; \
        const uint32_t hash_4_value = (temp ^ ((uint32_t)(cur[2]) << 8) ^ \
                        (hash_table[cur[3]] << 5)) & HASH_4_MASK