From 73fb21862b1daf86d4dd08d514b31c58122e7c9f Mon Sep 17 00:00:00 2001
From: Felix Domke <tmbinc@elitedvb.net>
Date: Mon, 26 Sep 2005 17:34:19 +0000
Subject: [PATCH]  - try to optimize notify behaviour: notify only when queue
 is empty

---
 lib/gdi/grc.cpp | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/lib/gdi/grc.cpp b/lib/gdi/grc.cpp
index 05aaa6ff..55d266c0 100644
--- a/lib/gdi/grc.cpp
+++ b/lib/gdi/grc.cpp
@@ -1,5 +1,5 @@
 // for debugging use:
-#define SYNC_PAINT
+// #define SYNC_PAINT
 #include <unistd.h>
 #ifndef SYNC_PAINT
 #include <pthread.h>
@@ -55,6 +55,7 @@ gRC::~gRC()
 
 void *gRC::thread()
 {
+	int need_notify = 0;
 #ifndef SYNC_PAINT
 	while (1)
 #else
@@ -66,12 +67,17 @@ void *gRC::thread()
 		if (o.opcode==gOpcode::shutdown)
 			break;
 		if (o.opcode==gOpcode::notify)
-		{
-			m_notify_pump.send(1);
-		} else
+			need_notify = 1;
+		else
 			o.dc->exec(&o);
 		o.dc->Release();
 		queue.dequeue();
+
+		if ((!queue.size()) && need_notify)
+		{
+			need_notify = 0;
+			m_notify_pump.send(1);
+		}
 	}
 #ifndef SYNC_PAINT
 	pthread_exit(0);
-- 
2.30.2