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- /* Copyright (C) 1998, 1999 Aladdin Enterprises. All rights reserved.
-
- This file is part of AFPL Ghostscript.
-
- AFPL Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author or
- distributor accepts any responsibility for the consequences of using it, or
- for whether it serves any particular purpose or works at all, unless he or
- she says so in writing. Refer to the Aladdin Free Public License (the
- "License") for full details.
-
- Every copy of AFPL Ghostscript must include a copy of the License, normally
- in a plain ASCII text file named PUBLIC. The License grants you the right
- to copy, modify and redistribute AFPL Ghostscript, but only under certain
- conditions described in the License. Among other things, the License
- requires that the copyright notice and this notice be preserved on all
- copies.
- */
-
- /*$Id: gsmemlok.h,v 1.2 2000/09/19 19:00:29 lpd Exp $ */
- /* Interface to monitor-locked heap memory allocator */
-
- /* Initial version 2/1/98 by John Desrosiers (soho@crl.com) */
-
- #if !defined(gsmemlok_INCLUDED)
- # define gsmemlok_INCLUDED
-
- #include "gsmemory.h"
- #include "gxsync.h"
-
- /*
- * This allocator encapsulates another allocator with a mutex.
- * Note that it does not keep track of memory that it acquires:
- * thus free_all with FREE_ALL_DATA is a no-op.
- */
-
- typedef struct gs_memory_locked_s {
- gs_memory_common; /* interface outside world sees */
- gs_memory_t *target; /* allocator to front */
- gx_monitor_t *monitor; /* monitor to serialize access to functions */
- } gs_memory_locked_t;
-
- /* ---------- Public constructors/destructors ---------- */
-
- /* Initialize a locked memory manager. */
- int gs_memory_locked_init(P2(
- gs_memory_locked_t * lmem, /* allocator to init */
- gs_memory_t * target /* allocator to monitor lock */
- ));
-
- /* Release a locked memory manager. */
- /* Note that this has no effect on the target. */
- void gs_memory_locked_release(P1(gs_memory_locked_t *lmem));
-
- /* Get the target of a locked memory manager. */
- gs_memory_t * gs_memory_locked_target(P1(const gs_memory_locked_t *lmem));
-
- #endif /*!defined(gsmemlok_INCLUDED) */
-