static int block_sigchld_handler = 0;
-void
+#ifdef HAVE_SIGACTION
+ sigset_t
+#else /* !HAVE_SIGACTION */
+ int
+#endif /* !HAVE_SIGACTION */
block_sigchld (void)
{
#ifdef HAVE_SIGACTION
sigset_t child_set;
sigemptyset (&child_set);
sigaddset (&child_set, SIGCHLD);
+ sigaddset (&child_set, SIGPIPE);
sigprocmask (SIG_BLOCK, &child_set, 0);
#endif /* HAVE_SIGACTION */
block_sigchld_handler++;
+
+#ifdef HAVE_SIGACTION
+ return child_set;
+#else /* !HAVE_SIGACTION */
+ return 0;
+#endif /* !HAVE_SIGACTION */
}
void
sigset_t child_set;
sigemptyset(&child_set);
sigaddset(&child_set, SIGCHLD);
+ sigaddset(&child_set, SIGPIPE);
sigprocmask(SIG_UNBLOCK, &child_set, 0);
#endif /* HAVE_SIGACTION */
be the screen on which this particular hack is running -- not the display
specification which the driver itself is using, since the driver ignores
its screen number and manages all existing screens.
+
+ Likewise, store a window ID in $XSCREENSAVER_WINDOW -- this will allow
+ us to (eventually) run multiple hacks in Xinerama mode, where each hack
+ has the same $DISPLAY but a different piece of glass.
*/
saver_info *si = ssi->global;
const char *odpy = DisplayString (si->dpy);
- char *ndpy = (char *) malloc(strlen(odpy) + 20);
+ char *ndpy = (char *) malloc (strlen(odpy) + 20);
+ char *nssw = (char *) malloc (40);
char *s;
strcpy (ndpy, "DISPLAY=");
while (isdigit(*s)) s++; /* skip over dpy number */
while (*s == '.') s++; /* skip over dot */
if (s[-1] != '.') *s++ = '.'; /* put on a dot */
- sprintf(s, "%d", ssi->number); /* put on screen number */
+ sprintf(s, "%d", ssi->real_screen_number); /* put on screen number */
+
+ sprintf (nssw, "XSCREENSAVER_WINDOW=0x%lX",
+ (unsigned long) ssi->screensaver_window);
/* Allegedly, BSD 4.3 didn't have putenv(), but nobody runs such systems
any more, right? It's not Posix, but everyone seems to have it. */
#ifdef HAVE_PUTENV
if (putenv (ndpy))
abort ();
- /* do not free(ndpy) -- see above. */
+ if (putenv (nssw))
+ abort ();
+
+ /* don't free ndpy/nssw -- some implementations of putenv (BSD 4.4,
+ glibc 2.0) copy the argument, but some (libc4,5, glibc 2.1.2)
+ do not. So we must leak it (and/or the previous setting). Yay.
+ */
#endif /* HAVE_PUTENV */
}