From: aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Fri, 24 Apr 2009 18:03:49 +0000 (+0000)
Subject: qemu: introduce lock/unlock_iothread (Marcelo Tosatti)
X-Git-Tag: TizenStudio_2.0_p2.3.2~208^2~12117
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4870852c9e5c92d1e94afddbee607e578e226fae;p=sdk%2Femulator%2Fqemu.git

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>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7244 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/vl.c b/vl.c
index 92f3014..63aeb23 100644
--- a/vl.c
+++ b/vl.c
@@ -3750,6 +3750,9 @@ void qemu_cpu_kick(void *env)
     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 @@ void main_loop_wait(int timeout)
         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;