7 static struct sigaction oldChildHandlerData;
9 void theHandler(int arg)
11 printf("handled %s\n", arg == SIGCHLD ? "SIGCHLD" : "?!unexpected signal?!" );
17 act.sa_handler=theHandler;
18 sigemptyset(&(act.sa_mask));
19 sigaddset(&(act.sa_mask), SIGCHLD);
20 // Make sure we don't block this signal. gdb tends to do that :-(
21 sigprocmask(SIG_UNBLOCK, &(act.sa_mask), 0);
23 act.sa_flags = SA_NOCLDSTOP;
25 // CC: take care of SunOS which automatically restarts interrupted system
26 // calls (and thus does not have SA_RESTART)
29 act.sa_flags |= SA_RESTART;
32 sigaction( SIGCHLD, &act, &oldChildHandlerData );
34 act.sa_handler=SIG_IGN;
35 sigemptyset(&(act.sa_mask));
36 sigaddset(&(act.sa_mask), SIGPIPE);
38 sigaction( SIGPIPE, &act, 0L);
46 FILE *p = popen("echo Hallo World", "r");
48 int n = fread(buffer, 200, 1, p);
49 __attribute__((unused)) ssize_t nw = write(2, buffer, n);
52 for (i = 0; i < 1000000; i++) ;