ZSTD_adjustCParams

函数名称：ZSTD_adjustCParams() :optimize `cPar` for a given input (`srcSize` and `dictSize`).mostly downsizing to reduce memory consumption and initialization.Both `srcSize` and `dictSize` are optional (use 0 if unknown),

函数原型：ZSTD_compressionParameters ZSTD_adjustCParams(ZSTD_compressionParameters cPar, unsigned long long srcSize, size_t dictSize)

返回类型：ZSTD_compressionParameters

参数：

类型	参数	名称
ZSTD_compressionParameters	cPar
unsigned long long	srcSize
size_t	dictSize

182

如果srcSize加dictSize恒等于0则返回:cPar

187

minSrcSize等于如果srcSize恒等于0则500否则0

188

rSize等于srcSize加dictSize加minSrcSize

189

如果rSize小于1左移ZSTD_WINDOWLOG_MAX位则

190

srcLog等于MAX(ZSTD_HASHLOG_MIN, ====== common function ====== + 1)

191

如果windowLog大于srcLog则windowLog等于srcLog

195

如果hashLog大于windowLog则hashLog等于windowLog

198

cycleLog等于ZSTD_cycleLog() :* condition for correct operation : hashLog > 1

199

如果cycleLog大于windowLog则chainLog减等于cycleLog减windowLog

203

如果windowLog小于ZSTD_WINDOWLOG_ABSOLUTEMIN则windowLog等于ZSTD_WINDOWLOG_ABSOLUTEMIN

206

返回:cPar

**调用者**
名称	描述
ZSTD_getCParams	ZSTD_compressionParameters structure for a selected compression level, `srcSize` and `dictSize`.

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告