зеркало из https://github.com/mozilla/gecko-dev.git
96 строки
2.8 KiB
C
96 строки
2.8 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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#if defined(PLARENAS_H)
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#else /* defined(PLARENAS_H) */
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PR_BEGIN_EXTERN_C
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typedef struct PLArenaPool PLArenaPool;
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/*
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** Allocate an arena pool as specified by the parameters.
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**
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** This is equivelant to allocating the space yourself and then
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** calling PL_InitArenaPool().
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**
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** This function may fail (and return a NULL) for a variety of
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** reasons. The reason for a particular failure can be discovered
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** by calling PR_GetError().
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*/
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#if 0 /* Not implemented */
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PR_EXTERN(PLArenaPool*) PL_AllocArenaPool(
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const char *name, PRUint32 size, PRUint32 align);
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#endif
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/*
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** Destroy an arena pool previously allocated by PL_AllocArenaPool().
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**
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** This function may fail if the arena is not empty and the caller
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** wishes to check for empty upon descruction.
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*/
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#if 0 /* Not implemented */
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PR_EXTERN(PRStatus) PL_DestroyArenaPool(PLArenaPool *pool, PRBool checkEmpty);
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#endif
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/*
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** Initialize an arena pool with the given name for debugging and metering,
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** with a minimum size per arena of size bytes.
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**/
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PR_EXTERN(void) PL_InitArenaPool(
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PLArenaPool *pool, const char *name, PRUint32 size, PRUint32 align);
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/*
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** Finish using arenas, freeing all memory associated with them.
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**/
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PR_EXTERN(void) PL_ArenaFinish(void);
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/*
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** Free the arenas in pool. The user may continue to allocate from pool
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** after calling this function. There is no need to call PL_InitArenaPool()
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** again unless PL_FinishArenaPool(pool) has been called.
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**/
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PR_EXTERN(void) PL_FreeArenaPool(PLArenaPool *pool);
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/*
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** Free the arenas in pool and finish using it altogether.
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**/
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PR_EXTERN(void) PL_FinishArenaPool(PLArenaPool *pool);
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/*
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** Compact all of the arenas in a pool so that no space is wasted.
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**/
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PR_EXTERN(void) PL_CompactArenaPool(PLArenaPool *pool);
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/*
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** Friend functions used by the PL_ARENA_*() macros.
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**/
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PR_EXTERN(void *) PL_ArenaAllocate(PLArenaPool *pool, PRUint32 nb);
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PR_EXTERN(void *) PL_ArenaGrow(
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PLArenaPool *pool, void *p, PRUint32 size, PRUint32 incr);
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PR_EXTERN(void) PL_ArenaRelease(PLArenaPool *pool, char *mark);
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PR_END_EXTERN_C
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#endif /* defined(PLARENAS_H) */
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/* plarenas */
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