1 files changed, 49 insertions, 0 deletions
diff --git a/XMPCommon/source/AutoSharedLock.cpp b/XMPCommon/source/AutoSharedLock.cpp
new file mode 100644
index 0000000..4648365
--- /dev/null
+++ b/XMPCommon/source/AutoSharedLock.cpp
@@ -0,0 +1,49 @@
+// =================================================================================================
+// ADOBE SYSTEMS INCORPORATED
+// Copyright 2014 Adobe Systems Incorporated
+// All Rights Reserved
+//
+// NOTICE:  Adobe permits you to use, modify, and distribute this file in accordance with the terms
+// of the Adobe license agreement accompanying it.
+// =================================================================================================
+
+#include "XMPCommon/Utilities/AutoSharedLock.h"
+#include "XMPCommon/Interfaces/ISharedMutex.h"
+#include "XMPCommon/Interfaces/IError_I.h"
+#include "XMPCommon/XMPCommonErrorCodes_I.h"
+
+namespace XMP_COMPONENT_INT_NAMESPACE {
+	AutoSharedLock::AutoSharedLock( const spISharedMutex & mutex, bool exclusiveLock /*= false */ )
+		: mMutex( mutex )
+		, mExclusiveLock( exclusiveLock )
+	{
+		if ( mMutex ) {
+			eMultiThreadingErrorCode er;
+			if ( mExclusiveLock )
+				er = mMutex->Lock();
+			else
+				er = mMutex->LockShared();
+			if ( er != kMTECNone ) {
+				NOTIFY_ERROR( IError_v1::kEDMultiThreading, er, "Unable to lock the mutex", IError_v1::kESProcessFatal, false, false );
+			}
+		}
+	}
+
+	AutoSharedLock::~AutoSharedLock() {
+		Release();
+	}
+
+	void AutoSharedLock::Release() {
+		if ( mMutex ) {
+			eMultiThreadingErrorCode er;
+			if ( mExclusiveLock )
+				er = mMutex->Unlock();
+			else
+				er = mMutex->UnlockShared();
+			if ( er != kMTECNone ) {
+				NOTIFY_ERROR( IError_v1::kEDMultiThreading, er, "Unable to lock the mutex", IError_v1::kESProcessFatal, false, false );
+			}
+		}
+	}
+
+}