зеркало из https://github.com/mozilla/pjs.git
95 строки
2.7 KiB
C++
95 строки
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsIMalloc_h___
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#define nsIMalloc_h___
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#include "nsISupports.h"
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class nsIMalloc : public nsISupports {
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public:
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/**
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* Allocates a block of memory of a particular size.
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*
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* @param size - the size of the block to allocate
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* @result the block of memory
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*/
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NS_IMETHOD_(void*)
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Alloc(PRUint32 size) = 0;
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/**
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* Reallocates a block of memory to a new size.
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*
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* @param ptr - the block of memory to reallocate
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* @param size - the new size
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* @result the rellocated block of memory
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*/
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NS_IMETHOD_(void*)
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Realloc(void* ptr, PRUint32 size) = 0;
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/**
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* Frees a block of memory.
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*
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* @param ptr - the block of memory to free
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*/
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NS_IMETHOD_(void)
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Free(void* ptr) = 0;
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/**
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* Returns the size of a block of memory. Returns -1
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* if the size is not available.
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*
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* @param ptr - the block of memory
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* @result the size or -1 if not available
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*/
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NS_IMETHOD_(PRInt32)
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GetSize(void* ptr) = 0;
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/**
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* Returns whether the block of memory was allocated by this
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* memory allocator. Returns PR_FALSE if this information is
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* not available.
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*
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* @param ptr - the block of memory
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* @result true if allocated by this nsIMalloc, false if not or
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* if it can't be determined
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*/
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NS_IMETHOD_(PRBool)
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DidAlloc(void* ptr) = 0;
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/**
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* Attempts to shrink the heap.
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*/
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NS_IMETHOD_(void)
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HeapMinimize(void) = 0;
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};
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#define NS_IMALLOC_IID \
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{ /* c4744e60-1875-11d2-815f-006008119d7a */ \
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0xc4744e60, \
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0x1875, \
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0x11d2, \
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{0x81, 0x5f, 0x00, 0x60, 0x08, 0x11, 0x9d, 0x7a} \
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}
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////////////////////////////////////////////////////////////////////////////////
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#endif /* nsIMalloc_h___ */
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