xas_max

函数名称：Use this to calculate the maximum index that will need to be created* in order to add the entry described by @xas. Because we cannot store a* multiple-index entry at index 0, the calculation is a little more complex* than you might expect.

函数原型：static unsigned long xas_max(struct xa_state *xas)

返回类型：unsigned long

参数：

类型	参数	名称
struct xa_state *	xas

411

max等于xa_index

414

如果xa_shift或xa_sibs则

415

mask等于Returns the number of indices covered by a given xa_state 减1

416

max或等于mask

417

如果mask恒等于max则max自加

422

返回:max

**调用者**
名称	描述
xas_expand	xas_expand adds nodes to the head of the tree until it has reached* sufficient height to be able to contain @xas->xa_index

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