early-access version 2840

externals/cubeb/src/cubeb_utils_win.h

@@ -11,23 +11,24 @@
 #include "cubeb-internal.h"
 #include <windows.h>
 
-/* This wraps an SRWLock to track the owner in debug mode, adapted from
+/* This wraps a critical section to track the owner in debug mode, adapted from
    NSPR and http://blogs.msdn.com/b/oldnewthing/archive/2013/07/12/10433554.aspx
  */
 class owned_critical_section {
 public:
   owned_critical_section()
-      : srwlock(SRWLOCK_INIT)
 #ifndef NDEBUG
-        ,
-        owner(0)
+      : owner(0)
 #endif
   {
+    InitializeCriticalSection(&critical_section);
   }
 
+  ~owned_critical_section() { DeleteCriticalSection(&critical_section); }
+
   void lock()
   {
-    AcquireSRWLockExclusive(&srwlock);
+    EnterCriticalSection(&critical_section);
 #ifndef NDEBUG
     XASSERT(owner != GetCurrentThreadId() && "recursive locking");
     owner = GetCurrentThreadId();
@@ -40,7 +41,7 @@ public:
     /* GetCurrentThreadId cannot return 0: it is not a the valid thread id */
     owner = 0;
 #endif
-    ReleaseSRWLockExclusive(&srwlock);
+    LeaveCriticalSection(&critical_section);
   }
 
   /* This is guaranteed to have the good behaviour if it succeeds. The behaviour
@@ -54,12 +55,12 @@ public:
   }
 
 private:
-  SRWLOCK srwlock;
+  CRITICAL_SECTION critical_section;
 #ifndef NDEBUG
   DWORD owner;
 #endif
 
-  // Disallow copy and assignment because SRWLock cannot be copied.
+  // Disallow copy and assignment because CRICICAL_SECTION cannot be copied.
   owned_critical_section(const owned_critical_section &);
   owned_critical_section & operator=(const owned_critical_section &);
 };