函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\zlib_deflate\deflate.c Create Date:2022-07-27 07:55:53
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：deflate_fast

函数原型：static block_state deflate_fast(deflate_state *s, int flush)

返回类型：block_state

参数：

类型参数名称
deflate_state *s
intflush
917  hash_head等于Local data
920  循环
926  如果umber of valid bytes ahead in window 小于Matches of length 3 are discarded if their distance exceeds TOO_FAR 则
927  Compression function. Returns the block state after the call.
928  如果umber of valid bytes ahead in window 小于Matches of length 3 are discarded if their distance exceeds TOO_FAR 且flush恒等于constants 则
931  如果umber of valid bytes ahead in window 恒等于0则退出
937  如果umber of valid bytes ahead in window 大于等于The three kinds of block type 则
938  Insert string str in the dictionary and set match_head to the previous head* of the hash chain (the most recent string with same hash key)(s, start of string to insert , hash_head)
944  如果hash_head不等于Local data且start of string to insert 减hash_head小于等于Minimum amount of lookahead, except at the end of the input file.* See deflate.c for comments about the MIN_MATCH+1.(s)则
949  如果avor or force Huffman coding不等于Z_HUFFMAN_ONLY则
954  如果length of best match 大于等于The three kinds of block type 则
957  bflush等于zlib_tr_tally(s, start of string to insert - start of matching string , length of best match - The three kinds of block type )
960  umber of valid bytes ahead in window 减等于length of best match
965  如果length of best match 小于等于max_insert_length且umber of valid bytes ahead in window 大于等于The three kinds of block type 则
976  否则
988  否则
991  bflush等于zlib_tr_tally(s, 0, window[start of string to insert ])
992  umber of valid bytes ahead in window 自减
993  start of string to insert 自加
995  如果bflush则
998  返回:如果flush恒等于Z_FINISH则finish_done否则lock flush performed