util: Use unique type for QemuRecMutex in thread-posix.h

We will shortly convert lockable.h to _Generic, and we cannot
have two compatible types in the same expansion.  Wrap QemuMutex
in a struct, and unwrap in qemu-thread-posix.c.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210614233143.1221879-6-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/util/qemu-thread-posix.c b/util/qemu-thread-posix.c
index d990826ed8..fd9d714038 100644
--- a/util/qemu-thread-posix.c
+++ b/util/qemu-thread-posix.c
@@ -116,32 +116,32 @@ void qemu_rec_mutex_init(QemuRecMutex *mutex)
 
     pthread_mutexattr_init(&attr);
     pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
-    err = pthread_mutex_init(&mutex->lock, &attr);
+    err = pthread_mutex_init(&mutex->m.lock, &attr);
     pthread_mutexattr_destroy(&attr);
     if (err) {
         error_exit(err, __func__);
     }
-    mutex->initialized = true;
+    mutex->m.initialized = true;
 }
 
 void qemu_rec_mutex_destroy(QemuRecMutex *mutex)
 {
-    qemu_mutex_destroy(mutex);
+    qemu_mutex_destroy(&mutex->m);
 }
 
 void qemu_rec_mutex_lock_impl(QemuRecMutex *mutex, const char *file, int line)
 {
-    qemu_mutex_lock_impl(mutex, file, line);
+    qemu_mutex_lock_impl(&mutex->m, file, line);
 }
 
 int qemu_rec_mutex_trylock_impl(QemuRecMutex *mutex, const char *file, int line)
 {
-    return qemu_mutex_trylock_impl(mutex, file, line);
+    return qemu_mutex_trylock_impl(&mutex->m, file, line);
 }
 
 void qemu_rec_mutex_unlock_impl(QemuRecMutex *mutex, const char *file, int line)
 {
-    qemu_mutex_unlock_impl(mutex, file, line);
+    qemu_mutex_unlock_impl(&mutex->m, file, line);
 }
 
 void qemu_cond_init(QemuCond *cond)