1 files changed, 81 insertions, 0 deletions
diff --git a/cpp/src/Ice/FactoryTableInit.cpp b/cpp/src/Ice/FactoryTableInit.cpp
new file mode 100644
index 00000000000..8e9496e721c
--- /dev/null
+++ b/cpp/src/Ice/FactoryTableInit.cpp
@@ -0,0 +1,81 @@
+// **********************************************************************
+//
+// Copyright (c) 2003-2011 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice is licensed to you under the terms described in the
+// ICE_LICENSE file included in this distribution.
+//
+// **********************************************************************
+
+#include <Ice/FactoryTableInit.h>
+#include <Ice/UserExceptionFactory.h>
+#include <IceUtil/Mutex.h>
+#include <IceUtil/MutexPtrLock.h>
+
+namespace IceInternal
+{
+
+//
+// Single global instance of the factory table for non-local
+// exceptions and non-abstract classes.
+//
+ICE_DECLSPEC_EXPORT FactoryTable* factoryTable;
+
+}
+
+namespace
+{
+
+int initCount = 0;   // Initialization count
+IceUtil::Mutex* initCountMutex = 0;
+
+class Init
+{
+public:
+
+    Init()
+    {
+        initCountMutex = new IceUtil::Mutex;
+    }
+
+    ~Init()
+    {
+        delete initCountMutex;
+        initCountMutex = 0;
+    }
+};
+
+Init init;
+
+}
+
+//
+// This constructor initializes the single global
+// IceInternal::factoryTable instance from the outside (if it hasn't
+// been initialized yet). The constructor here is triggered by a
+// file-static instance of FactoryTable in each slice2cpp-generated
+// header file that uses non-local exceptions or non-abstract classes.
+// This ensures that IceInternal::factoryTable is always initialized
+// before it is used.
+//
+IceInternal::FactoryTableInit::FactoryTableInit()
+{
+    IceUtilInternal::MutexPtrLock<IceUtil::Mutex> lock(initCountMutex);
+    if(0 == initCount++)
+    {
+        factoryTable = new FactoryTable;
+    }
+}
+
+//
+// The destructor decrements the reference count and, once the
+// count drops to zero, deletes the table.
+//
+IceInternal::FactoryTableInit::~FactoryTableInit()
+{
+    IceUtilInternal::MutexPtrLock<IceUtil::Mutex> lock(initCountMutex);
+    if(0 == --initCount)
+    {
+        delete factoryTable;
+    }
+}