gecko-dev/xpcom/base/nsMemory.h

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2.1 KiB
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef nsMemory_h__
#define nsMemory_h__
#include "nsIMemory.h"
/**
* Static helper routines to manage memory. These routines allow easy access
* to xpcom's built-in (global) nsIMemory implementation, without needing
* to go through the service manager to get it. However this requires clients
* to link with the xpcom DLL.
*/
class nsMemory
{
public:
static NS_EXPORT void* Alloc(size_t size);
static NS_EXPORT void* Realloc(void* ptr, size_t size);
static NS_EXPORT void Free(void* ptr);
static NS_EXPORT nsresult HeapMinimize(PRBool aImmediate);
static NS_EXPORT void* Clone(const void* ptr, size_t size);
static NS_EXPORT nsIMemory* GetGlobalMemoryService(); // AddRefs
};
// ContractID/CID for the global memory service:
#define NS_MEMORY_CONTRACTID "@mozilla.org/xpcom/memory-service;1"
#define NS_MEMORY_CLASSNAME "Global Memory Service"
#define NS_MEMORY_CID \
{ /* 30a04e40-38e7-11d4-8cf5-0060b0fc14a3 */ \
0x30a04e40, \
0x38e7, \
0x11d4, \
{0x8c, 0xf5, 0x00, 0x60, 0xb0, 0xfc, 0x14, 0xa3} \
}
#endif // nsMemory_h__