2008-08-06 11:15:24 -07:00
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/* EINA - EFL data type library
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* Copyright (C) 2007-2008 Jorge Luis Zapata Muga
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library;
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* if not, see <http://www.gnu.org/licenses/>.
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*/
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2008-08-28 00:46:42 -07:00
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#ifdef HAVE_CONFIG_H
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2009-09-06 21:32:49 -07:00
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# include "config.h"
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2008-08-28 00:46:42 -07:00
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#endif
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#include <assert.h>
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2008-09-29 06:28:42 -07:00
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#include <stdlib.h>
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2008-10-29 16:12:56 -07:00
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#include <stdio.h>
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#include <string.h>
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2008-08-28 00:46:42 -07:00
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2009-08-28 05:03:34 -07:00
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#include "eina_config.h"
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#include "eina_private.h"
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2008-09-24 05:55:31 -07:00
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#include "eina_hash.h"
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2008-07-30 06:35:49 -07:00
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#include "eina_module.h"
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2009-09-03 18:13:49 -07:00
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#include "eina_log.h"
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2009-09-06 15:21:56 -07:00
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#include "eina_main.h"
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/* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */
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2009-09-03 18:13:49 -07:00
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#include "eina_safety_checks.h"
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#include "eina_mempool.h"
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2008-08-28 00:46:42 -07:00
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2008-07-30 05:46:55 -07:00
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/*============================================================================*
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2010-07-27 19:37:05 -07:00
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* Local *
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*============================================================================*/
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2009-01-20 00:29:41 -08:00
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2009-06-22 13:03:58 -07:00
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/**
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* @cond LOCAL
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*/
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2008-09-24 05:55:31 -07:00
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static Eina_Hash *_backends;
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2008-09-29 06:28:42 -07:00
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static Eina_Array *_modules;
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2009-09-06 21:23:05 -07:00
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static int _eina_mempool_log_dom = -1;
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2009-09-03 18:13:49 -07:00
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2009-09-06 21:23:05 -07:00
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#ifdef ERR
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#undef ERR
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#endif
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#define ERR(...) EINA_LOG_DOM_ERR(_eina_mempool_log_dom, __VA_ARGS__)
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#ifdef DBG
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#undef DBG
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#endif
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#define DBG(...) EINA_LOG_DOM_DBG(_eina_mempool_log_dom, __VA_ARGS__)
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2009-09-03 18:13:49 -07:00
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2008-07-30 05:46:55 -07:00
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2008-07-31 10:00:56 -07:00
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static Eina_Mempool *
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2010-07-27 19:37:05 -07:00
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_new_va(const char *name,
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const char *context,
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const char *options,
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va_list args)
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2008-07-30 05:46:55 -07:00
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{
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2010-07-27 19:37:05 -07:00
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Eina_Mempool_Backend *be;
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Eina_Mempool *mp;
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2009-01-20 00:29:41 -08:00
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2010-07-27 19:37:05 -07:00
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Eina_Error err = EINA_ERROR_NOT_MEMPOOL_MODULE;
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2008-07-31 10:00:56 -07:00
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2010-07-27 19:37:05 -07:00
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eina_error_set(0);
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be = eina_hash_find(_backends, name);
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if (!be)
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goto on_error;
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2008-08-18 01:18:16 -07:00
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2010-07-27 19:37:05 -07:00
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err = EINA_ERROR_OUT_OF_MEMORY;
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mp = malloc(sizeof(Eina_Mempool));
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if (!mp)
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goto on_error;
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2008-09-24 05:55:31 -07:00
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2010-07-27 19:37:05 -07:00
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/* FIXME why backend is not a pointer? */
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mp->backend = *be;
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mp->backend_data = mp->backend.init(context, options, args);
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2008-08-18 01:18:16 -07:00
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2010-07-27 19:37:05 -07:00
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return mp;
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2008-08-18 01:18:16 -07:00
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2010-07-27 19:37:05 -07:00
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on_error:
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eina_error_set(err);
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return NULL;
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2008-07-30 05:46:55 -07:00
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}
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2008-08-18 01:18:16 -07:00
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2008-09-24 05:55:31 -07:00
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/* Built-in backend's prototypes */
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#ifdef EINA_STATIC_BUILD_CHAINED_POOL
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Eina_Bool chained_init(void);
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2010-07-27 19:37:05 -07:00
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void chained_shutdown(void);
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2008-09-24 05:55:31 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_PASS_THROUGH
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Eina_Bool pass_through_init(void);
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2010-07-27 19:37:05 -07:00
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void pass_through_shutdown(void);
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2008-09-24 05:55:31 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_EMEMOA_UNKNOWN
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Eina_Bool ememoa_unknown_init(void);
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2010-07-27 19:37:05 -07:00
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void ememoa_unknown_shutdown(void);
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2008-09-24 05:55:31 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_EMEMOA_FIXED
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Eina_Bool ememoa_fixed_init(void);
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2010-07-27 19:37:05 -07:00
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void ememoa_fixed_shutdown(void);
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2008-09-24 05:55:31 -07:00
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#endif
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2008-09-26 08:27:46 -07:00
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#ifdef EINA_STATIC_BUILD_FIXED_BITMAP
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Eina_Bool fixed_bitmap_init(void);
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2010-07-27 19:37:05 -07:00
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void fixed_bitmap_shutdown(void);
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2008-09-26 08:27:46 -07:00
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#endif
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2010-03-26 00:47:11 -07:00
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#ifdef EINA_STATIC_BUILD_BUDDY
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Eina_Bool buddy_init(void);
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2010-07-27 19:37:05 -07:00
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void buddy_shutdown(void);
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2010-03-26 00:47:11 -07:00
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#endif
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2010-07-26 08:52:43 -07:00
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#ifdef EINA_STATIC_BUILD_ONE_BIG
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Eina_Bool one_big_init(void);
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2010-07-27 19:37:05 -07:00
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void one_big_shutdown(void);
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2010-07-26 08:52:43 -07:00
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#endif
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2009-06-22 13:03:58 -07:00
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/**
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* @endcond
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*/
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2008-08-28 00:46:42 -07:00
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/*============================================================================*
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2010-07-27 19:37:05 -07:00
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* Global *
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*============================================================================*/
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2009-01-20 00:29:41 -08:00
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2009-12-27 00:45:30 -08:00
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/**
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* @cond LOCAL
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*/
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EAPI Eina_Error EINA_ERROR_NOT_MEMPOOL_MODULE = 0;
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2010-07-27 19:37:05 -07:00
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static const char EINA_ERROR_NOT_MEMPOOL_MODULE_STR[] =
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"Not a memory pool module.";
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2009-12-27 00:45:30 -08:00
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/**
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* @endcond
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*/
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2009-09-03 18:13:49 -07:00
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EAPI Eina_Bool
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eina_mempool_register(Eina_Mempool_Backend *be)
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2008-09-24 05:55:31 -07:00
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{
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2009-09-03 18:13:49 -07:00
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EINA_SAFETY_ON_NULL_RETURN_VAL(be, 0);
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DBG("be=%p, name=%p", be, be->name);
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return eina_hash_add(_backends, be->name, be);
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2008-09-24 05:55:31 -07:00
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}
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2008-08-28 00:46:42 -07:00
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2009-09-03 18:13:49 -07:00
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EAPI void
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eina_mempool_unregister(Eina_Mempool_Backend *be)
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2008-09-24 05:55:31 -07:00
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{
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2009-09-03 18:13:49 -07:00
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EINA_SAFETY_ON_NULL_RETURN(be);
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DBG("be=%p, name=%p", be, be->name);
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eina_hash_del(_backends, be->name, be);
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2008-09-24 05:55:31 -07:00
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}
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2009-01-20 00:29:41 -08:00
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2009-09-06 15:21:56 -07:00
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Eina_Bool
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2008-07-31 10:00:56 -07:00
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eina_mempool_init(void)
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2008-07-30 05:46:55 -07:00
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{
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2009-09-06 15:21:56 -07:00
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char *path;
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2010-07-27 19:37:05 -07:00
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_eina_mempool_log_dom = eina_log_domain_register("eina_mempool",
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EINA_LOG_COLOR_DEFAULT);
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2009-09-06 21:23:05 -07:00
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if (_eina_mempool_log_dom < 0)
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2009-09-06 15:21:56 -07:00
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{
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2010-07-27 19:37:05 -07:00
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EINA_LOG_ERR("Could not register log domain: eina_mempool");
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return 0;
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2009-09-06 15:21:56 -07:00
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}
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2010-07-27 19:37:05 -07:00
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EINA_ERROR_NOT_MEMPOOL_MODULE = eina_error_msg_static_register(
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EINA_ERROR_NOT_MEMPOOL_MODULE_STR);
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2009-09-06 15:21:56 -07:00
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_backends = eina_hash_string_superfast_new(NULL);
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/* dynamic backends */
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2010-07-27 19:37:05 -07:00
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_modules = eina_module_arch_list_get(NULL,
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PACKAGE_LIB_DIR "/eina/modules/mp",
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MODULE_ARCH);
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2009-09-06 15:21:56 -07:00
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2010-01-26 07:54:28 -08:00
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path = eina_module_environment_path_get("HOME", "/.eina/mp/modules/mp");
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_modules = eina_module_arch_list_get(_modules, path, MODULE_ARCH);
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2010-07-27 19:37:05 -07:00
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if (path)
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free(path);
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2009-09-06 15:21:56 -07:00
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2010-07-27 19:37:05 -07:00
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path = eina_module_environment_path_get("EINA_MODULES_MEMPOOL_DIR",
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"/eina/modules/mp");
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2010-01-26 07:54:28 -08:00
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_modules = eina_module_arch_list_get(_modules, path, MODULE_ARCH);
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2010-07-27 19:37:05 -07:00
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if (path)
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free(path);
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2009-09-06 15:21:56 -07:00
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2010-07-27 19:37:05 -07:00
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path = eina_module_symbol_path_get((const void *)eina_init,
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"/eina/modules/mp");
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2010-01-26 07:54:28 -08:00
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_modules = eina_module_arch_list_get(_modules, path, MODULE_ARCH);
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2010-07-27 19:37:05 -07:00
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if (path)
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free(path);
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2009-09-06 15:21:56 -07:00
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if (!_modules)
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{
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2010-07-27 19:37:05 -07:00
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ERR("no mempool modules able to be loaded.");
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eina_hash_free(_backends);
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goto mempool_init_error;
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2009-09-06 15:21:56 -07:00
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}
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2010-07-27 19:37:05 -07:00
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2009-09-06 15:21:56 -07:00
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eina_module_list_load(_modules);
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2010-07-27 19:37:05 -07:00
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2009-09-06 15:21:56 -07:00
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/* builtin backends */
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2008-09-24 05:55:31 -07:00
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#ifdef EINA_STATIC_BUILD_CHAINED_POOL
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2009-09-06 15:21:56 -07:00
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chained_init();
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2008-09-24 05:55:31 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_PASS_THROUGH
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2009-09-06 15:21:56 -07:00
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pass_through_init();
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2008-09-24 05:55:31 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_EMEMOA_UNKNOWN
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2009-09-06 15:21:56 -07:00
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ememoa_unknown_init();
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2008-09-24 05:55:31 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_EMEMOA_FIXED
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2009-09-06 15:21:56 -07:00
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ememoa_fixed_init();
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2009-08-06 11:08:14 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_FIXED_BITMAP
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2009-09-06 15:21:56 -07:00
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fixed_bitmap_init();
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2008-09-24 05:55:31 -07:00
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#endif
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2010-01-08 04:10:14 -08:00
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#ifdef EINA_STATIC_BUILD_BUDDY
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buddy_init();
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#endif
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2010-07-26 08:52:43 -07:00
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#ifdef EINA_STATIC_BUILD_ONE_BIG
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one_big_init();
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#endif
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2009-06-09 09:02:20 -07:00
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2009-09-06 15:21:56 -07:00
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return EINA_TRUE;
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2009-06-09 09:02:20 -07:00
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2010-07-27 19:37:05 -07:00
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mempool_init_error:
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2009-09-06 21:23:05 -07:00
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eina_log_domain_unregister(_eina_mempool_log_dom);
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_eina_mempool_log_dom = -1;
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2009-09-06 15:21:56 -07:00
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return EINA_FALSE;
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2008-07-30 05:46:55 -07:00
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}
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2008-08-18 01:18:16 -07:00
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2009-09-06 15:21:56 -07:00
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Eina_Bool
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2008-07-31 10:00:56 -07:00
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eina_mempool_shutdown(void)
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2008-07-30 05:46:55 -07:00
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{
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2009-09-06 15:21:56 -07:00
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/* builtin backends */
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2008-09-24 05:55:31 -07:00
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#ifdef EINA_STATIC_BUILD_CHAINED_POOL
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2009-09-06 15:21:56 -07:00
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chained_shutdown();
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2008-09-24 05:55:31 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_PASS_THROUGH
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2009-09-06 15:21:56 -07:00
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pass_through_shutdown();
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2008-09-24 05:55:31 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_EMEMOA_UNKNOWN
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2009-09-06 15:21:56 -07:00
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ememoa_unknown_shutdown();
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2008-09-24 05:55:31 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_EMEMOA_FIXED
|
2009-09-06 15:21:56 -07:00
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ememoa_fixed_shutdown();
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2009-08-06 11:08:14 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_FIXED_BITMAP
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2009-09-06 15:21:56 -07:00
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fixed_bitmap_shutdown();
|
2010-01-08 04:10:14 -08:00
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#endif
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#ifdef EINA_STATIC_BUILD_BUDDY
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buddy_shutdown();
|
2010-07-26 08:52:43 -07:00
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#endif
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#ifdef EINA_STATIC_BUILD_ONE_BIG
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one_big_shutdown();
|
2008-09-24 05:55:31 -07:00
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#endif
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2009-09-06 15:21:56 -07:00
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/* dynamic backends */
|
2010-01-08 04:22:23 -08:00
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eina_module_list_free(_modules);
|
2009-09-06 15:21:56 -07:00
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if (_modules)
|
2010-07-27 19:37:05 -07:00
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eina_array_free(_modules);
|
2009-06-09 09:02:20 -07:00
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|
2009-09-06 15:21:56 -07:00
|
|
|
if (_backends)
|
2010-07-27 19:37:05 -07:00
|
|
|
eina_hash_free(_backends);
|
2009-06-09 09:02:20 -07:00
|
|
|
|
2009-09-06 21:23:05 -07:00
|
|
|
eina_log_domain_unregister(_eina_mempool_log_dom);
|
|
|
|
_eina_mempool_log_dom = -1;
|
2009-06-09 09:02:20 -07:00
|
|
|
|
2009-09-06 15:21:56 -07:00
|
|
|
return EINA_TRUE;
|
2008-07-30 05:46:55 -07:00
|
|
|
}
|
2008-08-18 01:18:16 -07:00
|
|
|
|
2009-12-27 00:45:30 -08:00
|
|
|
/*============================================================================*
|
2010-07-27 19:37:05 -07:00
|
|
|
* API *
|
|
|
|
*============================================================================*/
|
2009-12-27 00:45:30 -08:00
|
|
|
|
|
|
|
/**
|
|
|
|
* @addtogroup Eina_Memory_Pool_Group Memory Pool
|
|
|
|
*
|
|
|
|
* @brief These functions provide memory pool management.
|
|
|
|
*
|
2010-02-19 05:42:34 -08:00
|
|
|
* Several mempool are available:
|
|
|
|
*
|
|
|
|
* @li @c buddy: It uses the
|
|
|
|
* <a href="http://en.wikipedia.org/wiki/Buddy_memory_allocation">"buddy
|
|
|
|
* allocator" algorithm</a> but the Eina implementation differs in the
|
|
|
|
* sense that the chunk information is not stored on the chunk itself,
|
|
|
|
* but on another memory area. This is useful for cases where the
|
2010-02-24 15:58:27 -08:00
|
|
|
* memory to manage might be slower to access, or limited (like video
|
2010-02-19 05:42:34 -08:00
|
|
|
* memory).
|
|
|
|
* @li @c chained_pool: It is the default one. It allocates a big
|
2010-02-24 15:58:27 -08:00
|
|
|
* chunk of memory with malloc() and split the result in chunks of the
|
|
|
|
* requested size that are pushed inside a stack. When requested, it
|
2010-02-19 05:42:34 -08:00
|
|
|
* takes this pointer from the stack to give them to whoever wants
|
|
|
|
* them.
|
|
|
|
* @li @c ememoa_fixed and @c ememoa_unknown: experimental allocators
|
|
|
|
* which could be useful when a fixed amount of memory is needed.
|
2010-02-24 15:58:27 -08:00
|
|
|
* @li @c fixed_bitmap: It allocates with malloc) 32* the requested
|
2010-02-19 05:42:34 -08:00
|
|
|
* size and push the pool pointer in an rbtree. To find empty space in
|
|
|
|
* a pool, it will just search for the first bit set in an int (32
|
|
|
|
* bits). Then, when a pointer is freed, it will do a search inside
|
|
|
|
* the rbtree.
|
|
|
|
* @li @c pass_through: it just call malloc() and free(). It may be
|
|
|
|
* faster on some computers than using our own allocators (like having
|
|
|
|
* a huge L2 cache, over 4MB).
|
|
|
|
*
|
2009-12-27 00:45:30 -08:00
|
|
|
* @{
|
|
|
|
*/
|
|
|
|
|
2008-07-31 10:00:56 -07:00
|
|
|
EAPI Eina_Mempool *
|
2010-07-27 19:37:05 -07:00
|
|
|
eina_mempool_add(const char *name,
|
|
|
|
const char *context,
|
|
|
|
const char *options,
|
|
|
|
...)
|
2008-07-30 05:46:55 -07:00
|
|
|
{
|
2010-07-27 19:37:05 -07:00
|
|
|
Eina_Mempool *mp;
|
|
|
|
va_list args;
|
2008-07-31 10:00:56 -07:00
|
|
|
|
2010-07-27 19:37:05 -07:00
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(name, NULL);
|
|
|
|
DBG("name=%s, context=%s, options=%s",
|
|
|
|
name, context ? context : "", options ? options : "");
|
2008-07-31 10:00:56 -07:00
|
|
|
|
2010-07-27 19:37:05 -07:00
|
|
|
va_start(args, options);
|
|
|
|
mp = _new_va(name, context, options, args);
|
|
|
|
va_end(args);
|
2008-07-31 10:00:56 -07:00
|
|
|
|
2010-07-27 19:37:05 -07:00
|
|
|
DBG("name=%s, context=%s, options=%s, mp=%p",
|
|
|
|
name, context ? context : "", options ? options : "", mp);
|
2009-09-03 18:13:49 -07:00
|
|
|
|
2010-07-27 19:37:05 -07:00
|
|
|
return mp;
|
2008-07-30 05:46:55 -07:00
|
|
|
}
|
2008-08-18 01:18:16 -07:00
|
|
|
|
2009-06-24 09:56:49 -07:00
|
|
|
EAPI void eina_mempool_del(Eina_Mempool *mp)
|
2008-07-30 05:46:55 -07:00
|
|
|
{
|
2010-07-27 19:37:05 -07:00
|
|
|
EINA_SAFETY_ON_NULL_RETURN(mp);
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN(mp->backend.shutdown);
|
|
|
|
DBG("mp=%p", mp);
|
|
|
|
mp->backend.shutdown(mp->backend_data);
|
|
|
|
free(mp);
|
2008-07-30 05:46:55 -07:00
|
|
|
}
|
2008-08-18 01:18:16 -07:00
|
|
|
|
2008-09-17 08:20:35 -07:00
|
|
|
EAPI void eina_mempool_gc(Eina_Mempool *mp)
|
|
|
|
{
|
2010-07-27 19:37:05 -07:00
|
|
|
EINA_SAFETY_ON_NULL_RETURN(mp);
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN(mp->backend.garbage_collect);
|
|
|
|
DBG("mp=%p", mp);
|
|
|
|
mp->backend.garbage_collect(mp->backend_data);
|
2008-09-17 08:20:35 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
EAPI void eina_mempool_statistics(Eina_Mempool *mp)
|
|
|
|
{
|
2010-07-27 19:37:05 -07:00
|
|
|
EINA_SAFETY_ON_NULL_RETURN(mp);
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN(mp->backend.statistics);
|
|
|
|
DBG("mp=%p", mp);
|
|
|
|
mp->backend.statistics(mp->backend_data);
|
2008-09-17 08:20:35 -07:00
|
|
|
}
|
2009-06-22 13:03:58 -07:00
|
|
|
|
2010-07-26 08:52:43 -07:00
|
|
|
EAPI unsigned int
|
|
|
|
eina_mempool_alignof(unsigned int size)
|
|
|
|
{
|
|
|
|
int align;
|
|
|
|
|
|
|
|
if (size <= 2)
|
2010-07-27 19:37:05 -07:00
|
|
|
align = 2;
|
2010-07-26 08:52:43 -07:00
|
|
|
else if (size < 8)
|
2010-07-27 19:37:05 -07:00
|
|
|
align = 4;
|
2010-07-26 08:52:43 -07:00
|
|
|
else
|
|
|
|
#if __WORDSIZE == 32
|
2010-07-27 19:37:05 -07:00
|
|
|
align = 8;
|
|
|
|
|
2010-07-26 08:52:43 -07:00
|
|
|
#else
|
|
|
|
if (size < 16)
|
2010-07-27 19:37:05 -07:00
|
|
|
align = 8;
|
2010-07-26 08:52:43 -07:00
|
|
|
else
|
2010-07-27 19:37:05 -07:00
|
|
|
align = 16;
|
2010-07-26 08:52:43 -07:00
|
|
|
#endif
|
|
|
|
|
|
|
|
return ((size / align) + 1) * align;
|
|
|
|
}
|
|
|
|
|
2009-06-22 13:03:58 -07:00
|
|
|
/**
|
|
|
|
* @}
|
|
|
|
*/
|