On Wed, Oct 06, 2004 at 12:24:48PM -0400, Remy Gauthier wrote:
>We manage synchronous events through calls to system(), and
>asynchronous events via fork() and a SIGCHLD handler. We have noticed
>(on V1.5.10-1 and V1.5.11-1) that after a call to system(), the
>handlers were not being called after the child process stopped. This
>program has this behaviour (removing the call to system() will restore
>correct SIGCHLD handling):
SYSTEM(3) Linux Programmer's Manual SYSTEM(3)
NAME
system - execute a shell command
SYNOPSIS
#include <stdlib.h>
int system(const char *string);
DESCRIPTION
system() executes a command specified in string by calling /bin/sh -c
string, and returns after the command has been completed. During exe-
cution of the command, SIGCHLD will be blocked, and SIGINT and SIGQUIT
will be ignored.
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