From ea89df2b76811505239b508a570ac9c0ea591038 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Fri, 9 Nov 2012 18:00:33 +0100
Subject: Use vfork() instead of fork() if available
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Hopefully this reduces the chance of hitting ‘unable to fork: Cannot
allocate memory’ errors.  vfork() is used for everything except
starting builders.
---
 src/libutil/util.hh | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/libutil/util.hh')

diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 0e121ea5c602..90413b0efe04 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -266,6 +266,9 @@ void closeOnExec(int fd);
    sanitize file handles 0, 1 and 2. */
 void setuidCleanup();
 
+/* Call vfork() if available, otherwise fork(). */
+extern pid_t (*maybeVfork)();
+
 
 /* User interruption. */
 
-- 
cgit 1.4.1