From 723d0184e2972f21db0f85feef3d35f0cb9b3298 Mon Sep 17 00:00:00 2001
From: Heikki Linnakangas
Date: Wed, 15 Sep 2010 10:35:05 +0000
Subject: Use a latch to make startup process wake up and replay immediately
 when new WAL arrives via streaming replication. This reduces the latency, and
 also allows us to use a longer polling interval, which is good for energy
 efficiency.

We still need to poll to check for the appearance of a trigger file, but
the interval is now 5 seconds (instead of 100ms), like when waiting for
a new WAL segment to appear in WAL archive.
---
 src/include/access/xlog.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/include/access')

diff --git a/src/include/access/xlog.h b/src/include/access/xlog.h
index 3d8ffbba615..ea156d38345 100644
--- a/src/include/access/xlog.h
+++ b/src/include/access/xlog.h
@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.116 2010/08/12 23:24:54 rhaas Exp $
+ * $PostgreSQL: pgsql/src/include/access/xlog.h,v 1.117 2010/09/15 10:35:05 heikki Exp $
  */
 #ifndef XLOG_H
 #define XLOG_H
@@ -303,5 +303,6 @@ extern TimeLineID GetRecoveryTargetTLI(void);
 
 extern void HandleStartupProcInterrupts(void);
 extern void StartupProcessMain(void);
+extern void WakeupRecovery(void);
 
 #endif   /* XLOG_H */
-- 
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