函数逻辑报告

函数名称：Returns a multiple of the size of a "struct signalfd_siginfo", or a negative* error code. The "count" parameter must be at least the size of a* "struct signalfd_siginfo".

函数原型：static ssize_t signalfd_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)

返回类型：ssize_t

参数：