呼叫信令 call signalling ; GKRCS ; call signal ; call signal system 元信令 Metasignaling ; meta-signaling ; meta signaling ; metasignaling ..
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Your write system call will be interrupted by the bus error signal SIGBUS, because you performed a bad memory access.
此时write系统调用会被进程接收到的SIGBUS信号中断,因为当前进程访问了非法内存地址。
Suppose a signal is generated during the very small time gap between setting the errno variable by the close system call and its return.
假定信号在close系统调用设置errno变量到其返回之前这一极小的时间片段内生成。
Kill system call takes two arguments: 1 the PID process id of the process that needs to be signalled 2 the signal that needs to be send to the process.
Kill系统调用接收两个参数:1需要接收信号的进程PID进程id 2需要发送给进程的信号。
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