From ede284de5fccecbde8a2b0b70471eec4cc5cd3eb Mon Sep 17 00:00:00 2001
From: Christopher Faylor <me@cgf.cx>
Date: Fri, 23 Dec 2005 01:24:14 +0000
Subject: * fork.cc (fork): Honor error return from sig_send.  Don't continue
 with fork if we couldn't suspend signals. * sigproc.cc (sig_send): Set
 sigCONT event when we see __SIGNOHOLD. (wait_sig): Remove holding_signals. 
 Create pipe with a buffer which will theoretically cause blocking if there is
 nothing reading on the pipe.  Wait for sigCONT at end of loop when we have a
 __SIGHOLD.

---
 winsup/cygwin/fork.cc | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'winsup/cygwin/fork.cc')

diff --git a/winsup/cygwin/fork.cc b/winsup/cygwin/fork.cc
index 98ef42769..31a5820df 100644
--- a/winsup/cygwin/fork.cc
+++ b/winsup/cygwin/fork.cc
@@ -507,7 +507,14 @@ fork ()
       return -1;
     }
 
-  sig_send (NULL, __SIGHOLD);
+  if (sig_send (NULL, __SIGHOLD))
+    {
+      if (exit_state)
+	Sleep (INFINITE);
+      set_errno (EAGAIN);
+      return -1;
+    }
+
   ischild = setjmp (grouped.ch.jmp);
 
   void *esp;
-- 
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