hi,

in my application, i have set up to capture SIGINT and execute a handler.the problem is whenever i hit C-c, multiple SIGINT are sent to the application.I have blocked the SIGINT right after catching the first one but it is unsuccessful.Here is what i do :


jmp_buf main_loop;

int main()
{

signal(SIGINT,CleanExit);

sigset_t set;
sigset_t old_set;

sigemptyset(&set);
sigemptyset(&old_set);

sigaddset (&set, SIGINT);

// run other threads ...

while( 1 )
{
if ( setjmp (main_loop) )
{
pthread_sigmask(SIG_BLOCK,&set,&old_set);
/// Clean up and shut down threads
pthread_sigmask(SIG_UNBLOCK,&set,&old_set);
break;
}
}

printf("\nbye!\n");
return 0;

}


void CleanExit()
{
shutdownThreads = 1;
longjmp (main_loop, 1);
}



The problem is the CleanExit method runs 3 to 4 times which means the pthread_sigmask(SIG_BLOCK,&set,&old_set); has not done the job.

So what is the problem?

My application is running in mulinux.

Thanks in advance,
Sedighzade