From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1LxPke-0004Zn-4G
	for qemu-devel@nongnu.org; Fri, 24 Apr 2009 14:03:52 -0400
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1LxPkd-0004ZP-Jp
	for qemu-devel@nongnu.org; Fri, 24 Apr 2009 14:03:51 -0400
Received: from [199.232.76.173] (port=36838 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1LxPkd-0004ZC-BI
	for qemu-devel@nongnu.org; Fri, 24 Apr 2009 14:03:51 -0400
Received: from savannah.gnu.org ([199.232.41.3]:35168 helo=sv.gnu.org)
	by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32)
	(Exim 4.60) (envelope-from <anthony@codemonkey.ws>)
	id 1LxPkc-0003No-PL
	for qemu-devel@nongnu.org; Fri, 24 Apr 2009 14:03:50 -0400
Received: from cvs.savannah.gnu.org ([199.232.41.69])
	by sv.gnu.org with esmtp (Exim 4.69)
	(envelope-from <anthony@codemonkey.ws>) id 1LxPkc-0002xm-9S
	for qemu-devel@nongnu.org; Fri, 24 Apr 2009 18:03:50 +0000
Received: from aliguori by cvs.savannah.gnu.org with local (Exim 4.69)
	(envelope-from <aliguori@savannah.gnu.org>) id 1LxPkc-0002xZ-1s
	for qemu-devel@nongnu.org; Fri, 24 Apr 2009 18:03:50 +0000
MIME-Version: 1.0
Errors-To: aliguori
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
From: Anthony Liguori <anthony@codemonkey.ws>
Message-Id: <E1LxPkc-0002xZ-1s@cvs.savannah.gnu.org>
Date: Fri, 24 Apr 2009 18:03:50 +0000
Subject: [Qemu-devel] [7244] qemu: introduce lock/unlock_iothread (Marcelo
	Tosatti)
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: qemu-devel@nongnu.org

Revision: 7244
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=7244
Author:   aliguori
Date:     2009-04-24 18:03:49 +0000 (Fri, 24 Apr 2009)
Log Message:
-----------
qemu: introduce lock/unlock_iothread (Marcelo Tosatti)

Hook to allow iothread to drop the global mutex.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

Modified Paths:
--------------
    trunk/vl.c

Modified: trunk/vl.c
===================================================================
--- trunk/vl.c	2009-04-24 18:03:45 UTC (rev 7243)
+++ trunk/vl.c	2009-04-24 18:03:49 UTC (rev 7244)
@@ -3750,6 +3750,9 @@
     return;
 }
 
+#define qemu_mutex_lock_iothread() do { } while (0)
+#define qemu_mutex_unlock_iothread() do { } while (0)
+
 #ifdef _WIN32
 static void host_main_loop_wait(int *timeout)
 {
@@ -3842,7 +3845,9 @@
         slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
     }
 #endif
+    qemu_mutex_unlock_iothread();
     ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
+    qemu_mutex_lock_iothread();
     if (ret > 0) {
         IOHandlerRecord **pioh;