320 lines
8.1 KiB
C
320 lines
8.1 KiB
C
/* 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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <assert.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "eina_config.h"
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#include "eina_private.h"
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#include "eina_hash.h"
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#include "eina_module.h"
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#include "eina_log.h"
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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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#include "eina_safety_checks.h"
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#include "eina_mempool.h"
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/*============================================================================*
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* Local *
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*============================================================================*/
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/**
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* @cond LOCAL
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*/
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static Eina_Hash *_backends;
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static Eina_Array *_modules;
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static int _eina_mempool_log_dom = -1;
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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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static Eina_Mempool *
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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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{
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Eina_Mempool_Backend *be;
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Eina_Mempool *mp = NULL;
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static signed char mempool_pass = -1;
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if (mempool_pass == -1)
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{
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if (getenv("EINA_MEMPOOL_PASS")) mempool_pass = 1;
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else mempool_pass = 0;
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}
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if (mempool_pass == 1)
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{
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be = eina_hash_find(_backends, "pass_through");
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if (!be) be = eina_hash_find(_backends, name);
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}
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else be = eina_hash_find(_backends, name);
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if ((!be) || (!be->init)) goto on_error;
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mp = calloc(1, sizeof(Eina_Mempool));
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if (!mp) goto on_error;
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/* Work around ABI incompability introduced in Eina 1.1 */
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#define SBP(Property) mp->backend.Property = be->Property;
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SBP(name);
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SBP(init);
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SBP(free);
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SBP(alloc);
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SBP(realloc);
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SBP(garbage_collect);
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SBP(statistics);
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SBP(shutdown);
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#undef SBP
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if (be->repack || be->from || be->iterator || be->alloc_near)
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{
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mp->backend2 = calloc(1, sizeof (Eina_Mempool_Backend_ABI2));
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if (!mp->backend2) goto on_error;
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mp->backend2->repack = be->repack;
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mp->backend2->from = be->from;
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mp->backend2->iterator = be->iterator;
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mp->backend2->alloc_near = be->alloc_near;
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}
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mp->backend_data = mp->backend.init(context, options, args);
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if (EINA_UNLIKELY(! mp->backend_data)) goto clean_mp;
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return mp;
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clean_mp:
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free(mp->backend2);
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on_error:
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free(mp);
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return NULL;
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}
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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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void chained_shutdown(void);
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#endif
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#ifdef EINA_STATIC_BUILD_ONE_BIG
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Eina_Bool one_big_init(void);
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void one_big_shutdown(void);
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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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void pass_through_shutdown(void);
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#endif
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/**
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* @endcond
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*/
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/*============================================================================*
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* Global *
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*============================================================================*/
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/**
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* @cond LOCAL
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*/
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EINA_API Eina_Error EINA_ERROR_NOT_MEMPOOL_MODULE = 0;
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/**
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* @endcond
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*/
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EINA_API Eina_Bool
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eina_mempool_register(Eina_Mempool_Backend *be)
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{
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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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}
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EINA_API void
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eina_mempool_unregister(Eina_Mempool_Backend *be)
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{
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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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}
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Eina_Bool
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eina_mempool_init(void)
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{
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char *path;
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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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if (_eina_mempool_log_dom < 0)
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{
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EINA_LOG_ERR("Could not register log domain: eina_mempool");
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return 0;
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}
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_backends = eina_hash_string_superfast_new(NULL);
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/* dynamic backends */
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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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path = eina_module_symbol_path_get((const void *)eina_init,
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"/eina/modules/mp");
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_modules = eina_module_arch_list_get(_modules, path, MODULE_ARCH);
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if (path)
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free(path);
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if (!_modules)
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{
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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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}
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// XXX: MODFIX: do not list ALL modules and load them ALL! this is
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// wrong. load the module we need WHEN we need it (by name etc. etc.
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// from api).
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eina_module_list_load(_modules);
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/* builtin backends */
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#ifdef EINA_STATIC_BUILD_CHAINED_POOL
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chained_init();
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#endif
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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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#ifdef EINA_STATIC_BUILD_PASS_THROUGH
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pass_through_init();
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#endif
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return EINA_TRUE;
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mempool_init_error:
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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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return EINA_FALSE;
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}
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Eina_Bool
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eina_mempool_shutdown(void)
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{
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/* builtin backends */
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#ifdef EINA_STATIC_BUILD_CHAINED_POOL
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chained_shutdown();
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#endif
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#ifdef EINA_STATIC_BUILD_ONE_BIG
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one_big_shutdown();
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#endif
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#ifdef EINA_STATIC_BUILD_PASS_THROUGH
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pass_through_shutdown();
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#endif
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/* dynamic backends */
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eina_module_list_free(_modules);
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if (_modules)
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eina_array_free(_modules);
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if (_backends)
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eina_hash_free(_backends);
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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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return EINA_TRUE;
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}
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/*============================================================================*
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* API *
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*============================================================================*/
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EINA_API Eina_Mempool *
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eina_mempool_add(const char *name,
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const char *context,
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const char *options,
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...)
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{
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Eina_Mempool *mp;
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va_list args;
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EINA_SAFETY_ON_NULL_RETURN_VAL(name, NULL);
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DBG("name=%s, context=%s, options=%s",
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name, context ? context : "", options ? options : "");
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va_start(args, options);
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mp = _new_va(name, context, options, args);
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va_end(args);
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DBG("name=%s, context=%s, options=%s, mp=%p",
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name, context ? context : "", options ? options : "", mp);
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return mp;
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}
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EINA_API void eina_mempool_del(Eina_Mempool *mp)
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{
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EINA_SAFETY_ON_NULL_RETURN(mp);
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EINA_SAFETY_ON_NULL_RETURN(mp->backend.shutdown);
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DBG("mp=%p", mp);
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mp->backend.shutdown(mp->backend_data);
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free(mp->backend2);
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free(mp);
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}
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EINA_API void eina_mempool_repack(Eina_Mempool *mp, Eina_Mempool_Repack_Cb cb, void *data)
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{
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EINA_SAFETY_ON_NULL_RETURN(mp);
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EINA_SAFETY_ON_NULL_RETURN(mp->backend2);
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EINA_SAFETY_ON_NULL_RETURN(mp->backend2->repack);
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DBG("mp=%p", mp);
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mp->backend2->repack(mp->backend_data, cb, data);
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}
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EINA_API void eina_mempool_gc(Eina_Mempool *mp)
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{
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EINA_SAFETY_ON_NULL_RETURN(mp);
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EINA_SAFETY_ON_NULL_RETURN(mp->backend.garbage_collect);
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DBG("mp=%p", mp);
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mp->backend.garbage_collect(mp->backend_data);
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}
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EINA_API void eina_mempool_statistics(Eina_Mempool *mp)
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{
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EINA_SAFETY_ON_NULL_RETURN(mp);
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EINA_SAFETY_ON_NULL_RETURN(mp->backend.statistics);
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DBG("mp=%p", mp);
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mp->backend.statistics(mp->backend_data);
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}
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