pipe_fasync

函数名称：pipe_fasync

函数原型：static int pipe_fasync(int fd, struct file *filp, int on)

返回类型：int

参数：

类型	参数	名称
int	fd
struct file *	filp
int	on

722

pipe等于 needed for tty driver, and maybe others

723

retval等于0

725

__pipe_lock(pipe)

726

如果f_mode按位与le is open for reading 则retval等于SMP safe fasync helpers:

728

如果f_mode按位与le is open for writing 且retval大于等于0则

729

retval等于SMP safe fasync helpers:

730

如果retval小于0且f_mode按位与le is open for reading 则SMP safe fasync helpers:

734

__pipe_unlock(pipe)

735

返回:retval

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