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/* Copyright (C) 1998, 1999 Aladdin Enterprises. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: gsmemlok.h,v 1.5 2002/06/16 08:45:42 lpd Exp $ */
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/* Interface to monitor-locked heap memory allocator */
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/* Initial version 2/1/98 by John Desrosiers (soho@crl.com) */
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#if !defined(gsmemlok_INCLUDED)
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# define gsmemlok_INCLUDED
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#include "gsmemory.h"
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#include "gxsync.h"
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/*
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* This allocator encapsulates another allocator with a mutex.
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* Note that it does not keep track of memory that it acquires:
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* thus free_all with FREE_ALL_DATA is a no-op.
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*/
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typedef struct gs_memory_locked_s {
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gs_memory_common; /* interface outside world sees */
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gs_memory_t *target; /* allocator to front */
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gx_monitor_t *monitor; /* monitor to serialize access to functions */
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} gs_memory_locked_t;
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/* ---------- Public constructors/destructors ---------- */
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/* Initialize a locked memory manager. */
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int gs_memory_locked_init(
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gs_memory_locked_t * lmem, /* allocator to init */
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gs_memory_t * target /* allocator to monitor lock */
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);
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/* Release a locked memory manager. */
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/* Note that this has no effect on the target. */
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void gs_memory_locked_release(gs_memory_locked_t *lmem);
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/* Get the target of a locked memory manager. */
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gs_memory_t * gs_memory_locked_target(const gs_memory_locked_t *lmem);
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#endif /*!defined(gsmemlok_INCLUDED) */
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