函数逻辑报告 |
Source Code:include\asm-generic\qrwlock.h |
Create Date:2022-07-27 10:53:36 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
首页 | 函数Tree |
注解内核,赢得工具 | 下载SCCT | English |
函数名称:queued_read_trylock - try to acquire read lock of a queue rwlock*@lock : Pointer to queue rwlock structure* Return: 1 if lock acquired, 0 if failed
函数原型:static inline int queued_read_trylock(struct qrwlock *lock)
返回类型:int
参数:
类型 | 参数 | 名称 |
---|---|---|
struct qrwlock * | lock |
42 | cnts等于atomic_read( & cnts) |
43 | 如果此条件成立可能性大(为编译器优化)(!(cnts & Writer mask ))则 |
44 | cnts等于atomic_add_return_acquire(_QR_BIAS, & cnts) |
45 | 如果此条件成立可能性大(为编译器优化)(!(cnts & Writer mask ))则返回:1 |
47 | atomic_sub(_QR_BIAS, & cnts) |
49 | 返回:0 |
源代码转换工具 开放的插件接口 | X |
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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 |