What is asynchronous communication. Simply, once the device is ready, the application is proactively notified, in which case the application does not need to query the device state, as the "broken concept" is often mentioned on the hardware. The
With regard to the reentrant nature of code, design developers generally consider thread safety only, and the security of asynchronous signal processing functions is often ignored. This article first describes how to write a secure asynchronous
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
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
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
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
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 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
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