1 files changed, 104 insertions, 0 deletions
diff --git a/private/ole32/dcomss/objex/shrmem/dcom95/mutex.cxx b/private/ole32/dcomss/objex/shrmem/dcom95/mutex.cxx
new file mode 100644
index 000000000..a371b59c0
--- /dev/null
+++ b/private/ole32/dcomss/objex/shrmem/dcom95/mutex.cxx
@@ -0,0 +1,104 @@
+/*++
+
+Microsoft Windows NT RPC Name Service
+Copyright (c) 1995 Microsoft Corporation
+
+Module Name:
+
+    mutex.cxx
+
+Abstract:
+
+    This file contains the implementations for non inline member functions of
+	CReadWriteSection and CGlobalMutex, which implement a readers/writers
+	mutex and a multi-owner mutex, respectively.
+
+Author:
+
+    Satish Thatte (SatishT) 09/01/95  Created all the code below except where
+									  otherwise indicated.
+
+--*/
+
+#define NULL 0
+
+extern "C" {
+#include <windows.h>
+}
+
+#include <mutex.hxx> 
+
+
+CGlobalMutex::CGlobalMutex(
+							long lMaxCount
+							) 
+/*++
+
+Routine Description:
+
+    create a semaphore and initialize the handle member pNTSem.
+
+--*/
+{	
+    hGlobalMutex = CreateMutex(
+            NULL,                 //  LPSECURITY_ATTRIBUTES   lpsa
+            FALSE,               //  BOOL                    fInitialOwner
+            GLOBAL_CS           //  LPCTSTR                 lpszMutexName
+            );
+
+    //
+    // If the mutex create/open failed, then bail
+    //
+
+    if ( !hGlobalMutex )
+    {
+        return LAST_SCODE;
+    }
+
+    if ( GetLastError() == ERROR_ALREADY_EXISTS ) 
+    {
+    }
+}
+
+
+
+CGlobalMutex::~CGlobalMutex() 
+/*++
+
+Routine Description:
+
+    close the semaphore handle.
+
+--*/
+{
+	CloseHandle(pNTSem);
+}
+
+
+void
+CGlobalMutex::Enter() 
+/*++
+
+Routine Description:
+
+    Wait for the semaphore count to become nonzero.
+
+--*/
+{
+	WaitForSingleObject(pNTSem,INFINITE);
+}
+
+
+void
+CGlobalMutex::Leave(long lIncrement) 
+/*++
+
+Routine Description:
+
+    Increment the semaphore count by lIncrement to release lIncrement "slots".
+
+--*/
+{
+	ReleaseSemaphore(pNTSem,lIncrement,NULL);
+}
+