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Old 02-09-2009, 12:42 AM   #1
LQ Newbie
Registered: Jan 2009
Posts: 2

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Sending signal from c program

I tried to send SIGUSR1 signal to a process using
system("kill -SIGUSR1 1234"); where 1234 is pid of process
m getting error
kill: SIGUSR1: invalid signal specification
and signal is not sent to the process.
But If I run same command from konsole it is working fine??
can anyone suggest what going wrong??
Thanks in advance..
Ravi Singla
Old 02-09-2009, 04:13 AM   #2
Registered: Dec 2008
Location: Atlanta, GA, USA
Distribution: Ubuntu
Posts: 130

Rep: Reputation: 26
Use the following function to send the signal through C code
kill (int pid, int signal);

raise() will send a signal to the program that contains this raise() call..



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