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SIGALRM Help

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# 1  
Old 06-16-2002
Question SIGALRM Help
A Unix system command needs to be executed from a C/C++ program. How do I use the SIGALRM in this case to stop processing the command after a few sec.
For eg, if the command is to connect to a database and the server is down, I would want to try for say 15 sec then give a timeout error.
How do I code this ?
# 2  
Old 06-16-2002
Most commands already have a timeout built-in to them. I would just go with that.

But to do what you asked, I would:

1 fork()

2a the child process would exec() the command in question

2b the parent process would sleep(15) ; then kill its child
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