[vlc-devel] [PATCH 2/2] win32: implement vlc_assert_locked()

[Steve Lhomme]

--
simple rebase of https://patches.videolan.org/patch/13640/
---
 src/libvlc.h       |  2 +-
 src/win32/thread.c | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/libvlc.h b/src/libvlc.h
index 63d8b54..86f31fc 100644
--- a/src/libvlc.h
+++ b/src/libvlc.h
@@ -62,7 +62,7 @@ void vlc_threads_setup (libvlc_int_t *);
 void vlc_trace (const char *fn, const char *file, unsigned line);
 #define vlc_backtrace() vlc_trace(__func__, __FILE__, __LINE__)
 
-#if (defined (LIBVLC_USE_PTHREAD) || defined(__ANDROID__)) && !defined (NDEBUG)
+#if (defined (LIBVLC_USE_PTHREAD) || defined(__ANDROID__) || defined(_WIN32)) && !defined (NDEBUG)
 void vlc_assert_locked (vlc_mutex_t *);
 #else
 # define vlc_assert_locked( m ) (void)m
diff --git a/src/win32/thread.c b/src/win32/thread.c
index 8d53185..6fafbfa 100644
--- a/src/win32/thread.c
+++ b/src/win32/thread.c
@@ -187,6 +187,25 @@ void vlc_mutex_unlock (vlc_mutex_t *p_mutex)
     LeaveCriticalSection (&p_mutex->mutex);
 }
 
+#ifndef NDEBUG
+void vlc_assert_locked (vlc_mutex_t *p_mutex)
+{
+    if (!p_mutex->dynamic)
+    {   /* static mutexes */
+        assert (p_mutex != &super_mutex); /* this one cannot be static */
+
+        vlc_mutex_lock (&super_mutex);
+        assert (p_mutex->locked);
+        vlc_mutex_unlock (&super_mutex);
+        return;
+    }
+
+    int ret = TryEnterCriticalSection (&p_mutex->mutex);
+    assert(ret != 0 && p_mutex->locked);
+    LeaveCriticalSection (&p_mutex->mutex);
+}
+#endif
+
 /*** Semaphore ***/
 #if (_WIN32_WINNT < _WIN32_WINNT_WIN8)
 # include <stdalign.h>
-- 
2.8.2