From: Paolo Bonzini <pbonzini@redhat.com>
Date: Sat, 12 Mar 2011 16:43:54 +0000 (+0100)
Subject: add assertions on the owner of a QemuMutex
X-Git-Tag: v0.15.0-rc0~719
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=89b48b56812a1a2d5b7edc927a7853d952e7fb38;p=thirdparty%2Fqemu.git

add assertions on the owner of a QemuMutex

These are already present in the Win32 implementation, add them to
the pthread wrappers as well.  Use PTHREAD_MUTEX_ERRORCHECK for mutex
operations. Later we'll add tracking of the owner for cond_signal/broadcast.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---

diff --git a/qemu-thread-posix.c b/qemu-thread-posix.c
index e3077733fca..8b54cc0262d 100644
--- a/qemu-thread-posix.c
+++ b/qemu-thread-posix.c
@@ -28,8 +28,12 @@ static void error_exit(int err, const char *msg)
 void qemu_mutex_init(QemuMutex *mutex)
 {
     int err;
+    pthread_mutexattr_t mutexattr;
 
-    err = pthread_mutex_init(&mutex->lock, NULL);
+    pthread_mutexattr_init(&mutexattr);
+    pthread_mutexattr_settype(&mutexattr, PTHREAD_MUTEX_ERRORCHECK);
+    err = pthread_mutex_init(&mutex->lock, &mutexattr);
+    pthread_mutexattr_destroy(&mutexattr);
     if (err)
         error_exit(err, __func__);
 }