From owner-freebsd-hackers  Fri Apr  6 22: 4:39 2001
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From: "ªL­^¶W" <r88074@csie.ntu.edu.tw>
To: "Freebsd-Hackers" <freebsd-hackers@FreeBSD.ORG>
Subject: Why is the process  killed ??
Date: Sat, 7 Apr 2001 13:04:04 +0800
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Dear all :

        the user process have the following  code  in the "main.c"

to catch the signal "SIGPROF" and "SIGVTALRM"

but the process is still killed by SIGVTALRM signal

Could anyone explain what is the reason maybe ?

Thanks in advance.

Richard_Lin


***********************************************
void catchalrm (int signo)
{
  printf("\nCATCH SIGNAL: signo=%d\n",signo);
  printf("CATCH RETURN\n");
}

******************main.c**********************
main()
{
..............
..............
    act.sa_handler=catchalrm;
    sigfillset(&(act.sa_mask));
    sigaction(SIGPROF, &act,NULL);
    sigaction(SIGVTALRM,&act,NULL);
    sigaction(SIGALRM,&act,NULL);
...............
...............
}





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