From b879372352767e6668517e274978bebf09bd868e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Thu, 13 Dec 2007 15:44:41 +0000
Subject: [PATCH] Added the timeout to QueueCommand::MakeSpace() as well.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23121 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/add-ons/accelerants/intel_extreme/engine.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/add-ons/accelerants/intel_extreme/engine.cpp b/src/add-ons/accelerants/intel_extreme/engine.cpp
index 15109b5633..48efc265ea 100644
--- a/src/add-ons/accelerants/intel_extreme/engine.cpp
+++ b/src/add-ons/accelerants/intel_extreme/engine.cpp
@@ -105,6 +105,7 @@ QueueCommands::MakeSpace(uint32 size)
 {
 	ASSERT((size & 1) == 0);
 	size *= sizeof(uint32);
+	bigtime_t start = system_time();
 
 	while (fRingBuffer.space_left < size) {
 		// wait until more space is free
@@ -116,8 +117,13 @@ QueueCommands::MakeSpace(uint32 size)
 
 		fRingBuffer.space_left = head - fRingBuffer.position;
 
-		if (fRingBuffer.space_left < size)
+		if (fRingBuffer.space_left < size) {
+			if (system_time() > start + 1000000LL) {
+				TRACE(("intel_extreme: engine stalled\n"));
+				break;
+			}
 			spin(10);
+		}
 	}
 
 	fRingBuffer.space_left -= size;