1 files changed, 151 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/glue/nsMemory.cpp b/src/libs/xpcom18a4/xpcom/glue/nsMemory.cpp
new file mode 100644
index 00000000..2449c58e
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/glue/nsMemory.cpp
@@ -0,0 +1,151 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsXPCOM.h"
+#include "nsMemory.h"
+#include "nsXPCOMPrivate.h"
+
+static nsIMemory* gMemory = nsnull;
+
+static NS_METHOD FreeGlobalMemory(void)
+{
+    NS_ASSERTION(gMemory, "must be not null after SetupGlobalMemory");
+    NS_IF_RELEASE(gMemory);
+    return NS_OK;
+}
+
+#define ENSURE_ALLOCATOR \
+  (gMemory ? PR_TRUE : (PRBool)(SetupGlobalMemory() != nsnull))
+
+static nsIMemory*
+SetupGlobalMemory()
+{
+    NS_ASSERTION(!gMemory, "must be called once");
+    if (!gMemory)
+    {
+        NS_GetMemoryManager(&gMemory);
+        NS_ASSERTION(gMemory, "can't get memory manager!");
+        if (gMemory)
+            NS_RegisterXPCOMExitRoutine(FreeGlobalMemory, 0);
+    }
+    return gMemory;
+}
+
+#ifdef XPCOM_GLUE
+nsresult GlueStartupMemory() 
+{
+    NS_ASSERTION(!gMemory, "must be called once");
+    if (!gMemory)
+    {
+        NS_GetMemoryManager(&gMemory);
+        NS_ASSERTION(gMemory, "can't get memory manager!");
+        if (!gMemory)
+            return NS_ERROR_FAILURE;
+    }
+    return NS_OK;
+}
+
+void GlueShutdownMemory()
+{
+    NS_IF_RELEASE(gMemory);
+}
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// nsMemory static helper routines
+
+NS_COM void*
+nsMemory::Alloc(PRSize size)
+{
+    if (!ENSURE_ALLOCATOR)
+        return nsnull;
+ 
+   return gMemory->Alloc(size);
+}
+
+NS_COM void*
+nsMemory::Realloc(void* ptr, PRSize size)
+{
+    if (!ENSURE_ALLOCATOR)
+        return nsnull;    
+
+    return gMemory->Realloc(ptr, size);
+}
+
+NS_COM void
+nsMemory::Free(void* ptr)
+{
+    if (!ENSURE_ALLOCATOR)
+        return;    
+
+    gMemory->Free(ptr);
+}
+
+NS_COM nsresult
+nsMemory::HeapMinimize(PRBool aImmediate)
+{
+    if (!ENSURE_ALLOCATOR)
+        return NS_ERROR_FAILURE;    
+
+    return gMemory->HeapMinimize(aImmediate);
+}
+
+NS_COM void*
+nsMemory::Clone(const void* ptr, PRSize size)
+{
+    if (!ENSURE_ALLOCATOR)
+        return nsnull;    
+
+    void* newPtr = gMemory->Alloc(size);
+    if (newPtr)
+        memcpy(newPtr, ptr, size);
+    return newPtr;
+}
+
+NS_COM nsIMemory*
+nsMemory::GetGlobalMemoryService()
+{
+    if (!ENSURE_ALLOCATOR)
+        return nsnull;    
+   
+    nsIMemory* result = gMemory;
+    NS_IF_ADDREF(result);
+    return result;
+}
+
+//----------------------------------------------------------------------
+