Reap children which die before I get my signal handler installed.

diff --git a/xwait.c b/xwait.c
index 06e0e5c..1a7ecd7 100644 (file)
--- a/xwait.c
+++ b/xwait.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: xwait.c,v 1.3 1998/11/21 22:30:27 mdw Exp $
+ * $Id: xwait.c,v 1.4 1998/11/21 22:41:19 mdw Exp $
  *
  * Wait until prodded by another X client
  *
@@ -29,6 +29,9 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: xwait.c,v $
+ * Revision 1.4  1998/11/21 22:41:19  mdw
+ * Reap children which die before I get my signal handler installed.
+ *
  * Revision 1.3  1998/11/21 22:30:27  mdw
  * Support GNU-style long options throughout, and introduce proper help
  * text to all programs.  Update manual pages to match.
@@ -222,12 +225,23 @@ int main(int argc, char *argv[])
 
   {
     struct sigaction sa;
+    sigset_t ss, oss;
+
+    /* --- Set the handler up --- */
 
     sa.sa_handler = sigchld;
     sigemptyset(&sa.sa_mask);
     sigaddset(&sa.sa_mask, SIGCHLD);
     sa.sa_flags = 0;
     sigaction(SIGCHLD, &sa, 0);
+
+    /* --- Now reap any which have been waiting around so far --- */
+
+    sigemptyset(&ss);
+    sigaddset(&ss, SIGCHLD);
+    sigprocmask(SIG_BLOCK, &ss, &oss);
+    sigchld(SIGCHLD);
+    sigprocmask(SIG_SETMASK, &oss, 0);
   }
 
   /* --- Now wait for an event --- */