New article – Signal Handling in Linux
This article introduces signals in Linux to the reader. It explains the nature of signals, how to use them and gives few small use examples.
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Hi Alex,
I read your article is is nice to get basic knowledge about signal.
I am little bit confused about sigaction api. Here sigaction api is having three argument and last argument is showing the struct sigaction *oldact. What is the use of that third argument. In manual page they have written that it is used to replace old signal action. but how it will replace old action. I m confused about that thing. Can you give demonstration code for that how it can switch to old action.