函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\zlib_deflate\deftree.c Create Date:2022-07-27 07:56:00
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Local (static) routines in this file.

函数原型：static void tr_static_init(void)

返回类型：void

参数：无

236  如果static_init_done则返回
239  length等于0
240  以code小于LENGTH_CODES减1循环
241  length code for each normalized match length (0 == MIN_MATCH) [code]等于length
242  以n小于1左移peat a zero length 11-138 times (7 bits of repeat count) [code]位循环
243  distance codes. The first 256 values correspond to the distances* 3 .. 258, the last 256 values correspond to the top 8 bits of* the 15 bit distances.[length++]等于code
251  distance codes. The first 256 values correspond to the distances* 3 .. 258, the last 256 values correspond to the top 8 bits of* the 15 bit distances.[length - 1]等于code
254  dist等于0
255  以code小于16循环
256  First normalized length for each code (0 = MIN_MATCH) [code]等于dist
257  以n小于1左移extra_dbits[code]位循环
258  The static distance tree. (Actually a trivial tree since all codes use* 5 bits.)[dist++]等于code
262  dist右移等于7位
263  以code小于umber of Literal or Length codes, including the END_BLOCK code 循环
264  First normalized length for each code (0 = MIN_MATCH) [code]等于dist左移7位
265  以n小于1左移extra_dbits[code]减7位循环
266  The static distance tree. (Actually a trivial tree since all codes use* 5 bits.)[256 + dist++]等于code
272  以bits小于等于maximum heap size 循环bl_count[bits]等于0
273  n等于0
274  当n小于等于143循环
274  Len等于8, bl_count[8]自加
275  当n小于等于255循环
275  Len等于9, bl_count[9]自加
276  当n小于等于279循环
276  Len等于7, bl_count[7]自加
277  当n小于等于287循环
277  Len等于8, bl_count[8]自加
282  gen_codes((ct_data * )Local data. These are initialized only once., umber of literal bytes 0..255 + 1, bl_count)
286  Len等于5
287  Code等于bitrev32((u32)n)右移32减5位
289  static_init_done等于1
调用者
名称描述
zlib_tr_initInitialize the tree data structures for a new zlib stream.