Wednesday, October 12, 2011

Unix/Linux Signal Handling

Signals are the interrupts. They are a way of providing asynchronous events. For example a user typing ctrl-c on terminal to stop a program. Most of the programs need to handle signals. Every signal has a name like SIGxxx. For example : SIGALRM is the alarm signal that is generated when the timer set by the alarm function goes off.

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