extract

函数名称：This trie implements a longest prefix match algorithm that can be used to* match IP addresses to a stored set of ranges.* Data stored in @data of struct bpf_lpm_key and struct lpm_trie_node is

函数原型：static inline int extract_bit(const u8 *data, size_t index)

返回类型：int

参数：

类型	参数	名称
const u8 *	data
size_t	index

153

返回:非非data[index / 8]按位与1左移7减index取模8位的值

**调用者**
名称	描述
trie_lookup_elem	Called from syscall or from eBPF program
trie_update_elem	Called from syscall or from eBPF program
trie_delete_elem	Called from syscall or from eBPF program
trie_get_next_key

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