signal, parent & children processes


I did something like:

/* --------------------- */
void sigINT_handler1 (int sig_i)
{
fprintf (stderr, "sigINT_handler1: pid#%d ignores a signal %d\n", getpid(), sig_i);
signal (SIGINT, sigINT_handler1);
}

void sigINT_handler2 (int sig_i)
{
fprintf (stderr, "sigINT_handler2: pid#%d ignores a signal %d\n", getpid(), sig_i);
signal (SIGINT, sigINT_handler2);
}


int main()
// fragments od code
{
sigINT_handler1 (SIGINT);

if (fork() > 0) // Parent
{
// Stuff
waitpid (pid, &status, 0);
}
else // Child
{
sigINT_handler2 (SIGINT);
execvp (<args>);
}
}

Parent catchs SIGINT via sigINT_handler1,
but Child doesn't catch SIGINT via sigINT_handler2.

How can Child catch SIGINT with its own signal handler?


--
Alex Vinokur
email: alex DOT vinokur AT gmail DOT com
http://mathforum.org/library/view/10978.html
http://sourceforge.net/users/alexvn



.

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