From 25e40ae6aa4b51f08c60bab3d11bb28a9efc2847 Mon Sep 17 00:00:00 2001
From: Christopher Faylor <me@cgf.cx>
Date: Fri, 14 Sep 2001 04:37:57 +0000
Subject: * fork.cc (vfork): Avoid recursive vforks.

---
 winsup/cygwin/fork.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

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

diff --git a/winsup/cygwin/fork.cc b/winsup/cygwin/fork.cc
index 83e25393f..b2f4d7c84 100644
--- a/winsup/cygwin/fork.cc
+++ b/winsup/cygwin/fork.cc
@@ -705,6 +705,8 @@ vfork ()
 
   if (vf == NULL)
     vf = vfork_storage.create ();
+  else if (vf->pid)
+    return fork ();
 
   if (!setjmp (vf->j))
     {
@@ -735,6 +737,8 @@ vfork ()
 	exit (exitval);
     }
 
-  return vf->pid;
+  int pid = vf->pid;
+  vf->pid = 0;
+  return pid;
 #endif
 }
-- 
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