First, signal and signal sourceSignal EssenceThe signal is a simulation of the interrupt mechanism at the software level, in principle, a process receives a signal that the processor receives an interrupt request can be said to be the same. The
The linux signal mechanism is far more complex than imagined. This article strives to use the shortest length to make in-depth and meticulous analysis on the machine. You can read the signal application instance (in the signal (below) first, so that
Core Signal Processing Reference:Http://www.spongeliu.com/165.htmlThe signal is essentially a simulation of the interrupt mechanism at the software level (attention to distinguish interrupts, anomalies, signals), which mainly have the following
The signal is associated with a certain process. In other words, a process can determine which signals are handled in the process. For example, a process can ignore some signals and handle only some other signals, and a process can also choose how
Http://blog.chinaunix.net/uid-9354-id-2425031.htmlSo I hope that the same way to deal with the multiple occurrences of the signal, it is best to use sigaction. The signal only appears and is processed once, can be used signal.Each time the signal
signal is a very important part of Linux programming, this article will detail the basic concept of signal mechanism, the approximate realization method of Linux to signal mechanism, how to use signal, and several system calls about signal. signal
Http://www.cnblogs.com/taobataoma/archive/2007/08/30/875743.htmlsignal is a very important part of Linux programming, this article will detail the basic concept of signal mechanism, the approximate realization method of Linux to signal mechanism,
Signal is a very important part of Linux programming, this article will detail the basic concept of signal mechanism, the approximate realization method of Linux to signal mechanism, how to use signal, and several system calls about signal.Signal
Signal is a very important part in Linux programming. This article will introduce in detail the basic concepts of the signal mechanism, the general implementation of the signal mechanism in Linux, and how to use the signal, and several system calls
1. Signal pending and blocking"Signal status:
The "pending" Status of the signal refers to the period from the generation of the signal to the time before the signal is processed. The "blocking" Status of the signal is a switching action, it
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