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#ifndef PLARENAS_H
#define PLARENAS_H

PR_BEGIN_EXTERN_C

typedef struct PLArenaPool      PLArenaPool;

/*
** Initialize an arena pool with the given name for debugging and metering,
** with a minimum size per arena of size bytes.
**/
PR_EXTERN(void) PL_InitArenaPool(
    PLArenaPool *pool, const char *name, PRUint32 size, PRUint32 align);

/*
** Finish using arenas, freeing all memory associated with them.
**/
PR_EXTERN(void) PL_ArenaFinish(void);

/*
** Free the arenas in pool.  The user may continue to allocate from pool
** after calling this function.  There is no need to call PL_InitArenaPool()
** again unless PL_FinishArenaPool(pool) has been called.
**/
PR_EXTERN(void) PL_FreeArenaPool(PLArenaPool *pool);

/*
** Free the arenas in pool and finish using it altogether.
**/
PR_EXTERN(void) PL_FinishArenaPool(PLArenaPool *pool);

/*
** Compact all of the arenas in a pool so that no space is wasted.
** NOT IMPLEMENTED.  Do not use.
**/
PR_EXTERN(void) PL_CompactArenaPool(PLArenaPool *pool);

/*
** Friend functions used by the PL_ARENA_*() macros.
**/
PR_EXTERN(void *) PL_ArenaAllocate(PLArenaPool *pool, PRUint32 nb);

PR_EXTERN(void *) PL_ArenaGrow(
    PLArenaPool *pool, void *p, PRUint32 size, PRUint32 incr);

PR_EXTERN(void) PL_ArenaRelease(PLArenaPool *pool, char *mark);

/*
** memset contents of all arenas in pool to pattern
*/
PR_EXTERN(void) PL_ClearArenaPool(PLArenaPool *pool, PRInt32 pattern);

PR_END_EXTERN_C

#endif /* PLARENAS_H */
