318 lines
7.0 KiB
C
318 lines
7.0 KiB
C
/* EINA - EFL data type library
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* Copyright (C) 2008 Cedric Bail
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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 <stdio.h>
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#ifdef EFL_HAVE_POSIX_THREADS
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# include <pthread.h>
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#endif
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#ifdef EFL_HAVE_WIN32_THREADS
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h>
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# undef WIN32_LEAN_AND_MEAN
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#endif
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#include "eina_config.h"
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#include "eina_private.h"
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#include "eina_types.h"
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#include "eina_main.h"
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#include "eina_error.h"
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#include "eina_log.h"
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#include "eina_hash.h"
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#include "eina_binshare.h"
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#include "eina_stringshare.h"
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#include "eina_ustringshare.h"
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#include "eina_list.h"
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#include "eina_matrixsparse.h"
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#include "eina_array.h"
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#include "eina_counter.h"
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#include "eina_benchmark.h"
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#include "eina_magic.h"
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#include "eina_rectangle.h"
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#include "eina_safety_checks.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_Version _version = { VMAJ, VMIN, VMIC, VREV };
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static int _eina_main_count = 0;
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#ifdef EFL_HAVE_THREADS
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static int _eina_main_thread_count = 0;
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#endif
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static int _eina_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_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_log_dom, __VA_ARGS__)
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Eina_Bool _threads_activated = EINA_FALSE;
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#ifdef EFL_HAVE_THREADS
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# ifdef EFL_HAVE_POSIX_THREADS
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static pthread_mutex_t _mutex = PTHREAD_MUTEX_INITIALIZER;
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# define LOCK() if(_threads_activated) pthread_mutex_lock(&_mutex)
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# define UNLOCK() if(_threads_activated) pthread_mutex_unlock(&_mutex)
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# define UNLOCK_FORCE() pthread_mutex_unlock(&_mutex)
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# else /* EFL_HAVE_WIN32_THREADS */
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static HANDLE _mutex = NULL;
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# define LOCK() if(_threads_activated) WaitForSingleObject(_mutex, INFINITE)
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# define UNLOCK() if(_threads_activated) ReleaseMutex(_mutex)
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# define UNLOCK_FORCE() ReleaseMutex(_mutex)
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# endif
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#else
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# define LOCK() do {} while (0)
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# define UNLOCK() do {} while (0)
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# define UNLOCK_FORCE() do {} while (0)
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#endif
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/* place module init/shutdown functions here to avoid other modules
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* calling them by mistake.
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*/
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#define S(x) extern Eina_Bool eina_ ## x ## _init(void); \
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extern Eina_Bool eina_ ## x ## _shutdown(void)
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S(log);
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S(error);
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S(safety_checks);
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S(magic_string);
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S(iterator);
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S(accessor);
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S(array);
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S(module);
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S(mempool);
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S(list);
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S(binshare);
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S(stringshare);
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S(ustringshare);
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S(matrixsparse);
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S(convert);
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S(counter);
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S(benchmark);
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S(rectangle);
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S(strbuf);
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S(ustrbuf);
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S(quadtree);
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S(simple_xml);
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#undef S
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struct eina_desc_setup
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{
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const char *name;
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Eina_Bool (*init)(void);
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Eina_Bool (*shutdown)(void);
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};
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static const struct eina_desc_setup _eina_desc_setup[] = {
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#define S(x) {# x, eina_ ## x ## _init, eina_ ## x ## _shutdown}
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/* log is a special case as it needs printf */
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S(error),
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S(safety_checks),
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S(magic_string),
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S(iterator),
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S(accessor),
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S(array),
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S(module),
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S(mempool),
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S(list),
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S(binshare),
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S(stringshare),
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S(ustringshare),
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S(matrixsparse),
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S(convert),
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S(counter),
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S(benchmark),
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S(rectangle),
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S(strbuf),
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S(ustrbuf),
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S(quadtree),
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S(simple_xml)
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#undef S
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};
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static const size_t _eina_desc_setup_len = sizeof(_eina_desc_setup) /
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sizeof(_eina_desc_setup[0]);
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static void
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_eina_shutdown_from_desc(const struct eina_desc_setup *itr)
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{
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for (itr--; itr >= _eina_desc_setup; itr--)
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{
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if (!itr->shutdown())
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ERR("Problems shutting down eina module '%s', ignored.", itr->name);
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}
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eina_log_domain_unregister(_eina_log_dom);
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_eina_log_dom = -1;
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eina_log_shutdown();
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}
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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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* API *
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*============================================================================*/
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/**
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* @var eina_version
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* @brief Eina version (defined at configuration time)
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*/
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EAPI Eina_Version *eina_version = &_version;
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EAPI int
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eina_init(void)
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{
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const struct eina_desc_setup *itr, *itr_end;
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if (EINA_LIKELY(_eina_main_count > 0))
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return ++_eina_main_count;
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if (!eina_log_init())
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{
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fprintf(stderr, "Could not initialize eina logging system.\n");
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return 0;
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}
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_eina_log_dom = eina_log_domain_register("eina", EINA_LOG_COLOR_DEFAULT);
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if (_eina_log_dom < 0)
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{
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EINA_LOG_ERR("Could not register log domain: eina");
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eina_log_shutdown();
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return 0;
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}
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itr = _eina_desc_setup;
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itr_end = itr + _eina_desc_setup_len;
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for (; itr < itr_end; itr++)
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{
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if (!itr->init())
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{
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ERR("Could not initialize eina module '%s'.", itr->name);
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_eina_shutdown_from_desc(itr);
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return 0;
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}
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}
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_eina_main_count = 1;
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return 1;
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}
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EAPI int
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eina_shutdown(void)
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{
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_eina_main_count--;
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if (EINA_UNLIKELY(_eina_main_count == 0))
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_eina_shutdown_from_desc(_eina_desc_setup + _eina_desc_setup_len);
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return _eina_main_count;
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}
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EAPI int
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eina_threads_init(void)
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{
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#ifdef EFL_HAVE_THREADS
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int ret;
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# ifdef EFL_HAVE_WIN32_THREADS
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if (!_mutex)
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_mutex = CreateMutex(NULL, FALSE, NULL);
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if (!_mutex)
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return 0;
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# endif
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LOCK();
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++_eina_main_thread_count;
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ret = _eina_main_thread_count;
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if(_eina_main_thread_count > 1)
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{
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UNLOCK();
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return ret;
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}
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eina_share_common_threads_init();
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eina_log_threads_init();
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_threads_activated = EINA_TRUE;
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return ret;
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#else
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return 0;
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#endif
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}
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EAPI int
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eina_threads_shutdown(void)
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{
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#ifdef EFL_HAVE_THREADS
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int ret;
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LOCK();
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ret = --_eina_main_thread_count;
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if(_eina_main_thread_count > 0)
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{
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UNLOCK();
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return ret;
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}
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eina_share_common_threads_shutdown();
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eina_log_threads_shutdown();
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_threads_activated = EINA_FALSE;
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UNLOCK_FORCE();
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# ifdef EFL_HAVE_WIN32_THREADS
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if (_mutex)
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CloseHandle(_mutex);
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# endif
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return ret;
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#else
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return 0;
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#endif
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}
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/**
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* @}
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*/
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