1 /* EINA - EFL data type library
2 * Copyright (C) 2008 Cedric Bail
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library;
16 * if not, see <http://www.gnu.org/licenses/>.
25 #include "eina_config.h"
26 #include "eina_private.h"
27 #include "eina_types.h"
28 #include "eina_main.h"
29 #include "eina_error.h"
31 #include "eina_hash.h"
32 #include "eina_stringshare.h"
33 #include "eina_list.h"
34 #include "eina_matrixsparse.h"
35 #include "eina_array.h"
36 #include "eina_counter.h"
37 #include "eina_benchmark.h"
38 #include "eina_magic.h"
39 #include "eina_rectangle.h"
40 #include "eina_safety_checks.h"
42 /*============================================================================*
44 *============================================================================*/
50 static int _eina_main_count = 0;
51 static int _eina_main_thread_count = 0;
52 static int _eina_log_dom = -1;
57 #define ERR(...) EINA_LOG_DOM_ERR(_eina_log_dom, __VA_ARGS__)
62 #define DBG(...) EINA_LOG_DOM_DBG(_eina_log_dom, __VA_ARGS__)
64 #ifdef EFL_HAVE_PTHREAD
66 static Eina_Bool _threads_activated = EINA_FALSE;
67 static pthread_mutex_t _mutex = PTHREAD_MUTEX_INITIALIZER;
68 #define LOCK() if(_threads_activated) pthread_mutex_lock(&_mutex);
69 #define UNLOCK() if(_threads_activated) pthread_mutex_unlock(&_mutex);
70 #define UNLOCK_FORCE() pthread_mutex_unlock(&_mutex);
72 #define LOCK() do {} while (0)
73 #define UNLOCK() do {} while (0)
74 #define UNLOCK_FORCE() do {} while (0)
77 /* place module init/shutdown functions here to avoid other modules
78 * calling them by mistake.
80 #define S(x) extern Eina_Bool eina_##x##_init(void); extern Eina_Bool eina_##x##_shutdown(void)
99 struct eina_desc_setup
102 Eina_Bool (*init)(void);
103 Eina_Bool (*shutdown)(void);
106 static const struct eina_desc_setup _eina_desc_setup[] = {
107 #define S(x) {#x, eina_##x##_init, eina_##x##_shutdown}
108 /* log is a special case as it needs printf */
126 static const size_t _eina_desc_setup_len = sizeof(_eina_desc_setup) / sizeof(_eina_desc_setup[0]);
129 _eina_shutdown_from_desc(const struct eina_desc_setup *itr)
131 for (itr--; itr >= _eina_desc_setup; itr--)
133 if (!itr->shutdown())
134 ERR("Problems shutting down eina module '%s', ignored.", itr->name);
137 eina_log_domain_unregister(_eina_log_dom);
146 /*============================================================================*
148 *============================================================================*/
150 /*============================================================================*
152 *============================================================================*/
155 * @addtogroup Eina_Main_Group Main
157 * @brief These functions provide general initialisation and shut down
164 * @brief Initialize the Eina library.
166 * @return 1 or greater on success, 0 on error.
168 * This function sets up all the eina modules. It returns 0 on
169 * failure (that is, when one of the module fails to initialize),
170 * otherwise it returns the number of times it has already been
173 * When Eina is not used anymore, call eina_shutdown() to shut down
179 const struct eina_desc_setup *itr, *itr_end;
181 if (EINA_LIKELY(_eina_main_count > 0))
182 return ++_eina_main_count;
184 if (!eina_log_init())
186 fprintf(stderr, "Could not initialize eina logging system.\n");
189 _eina_log_dom = eina_log_domain_register("eina", EINA_LOG_COLOR_DEFAULT);
190 if (_eina_log_dom < 0)
192 EINA_LOG_ERR("Could not register log domain: eina");
197 itr = _eina_desc_setup;
198 itr_end = itr + _eina_desc_setup_len;
199 for (; itr < itr_end; itr++)
203 ERR("Could not initialize eina module '%s'.", itr->name);
204 _eina_shutdown_from_desc(itr);
209 _eina_main_count = 1;
214 * @brief Shut down the Eina library.
216 * @return 0 when all the modules is completely shut down, 1 or
219 * This function shuts down the Eina library. It returns 0 when it has
220 * been called the same number of times than eina_init(). In that case
221 * it shut down all the Eina modules.
223 * Once this function succeeds (that is, @c 0 is returned), you must
224 * not call any of the Eina function anymore. You must call
225 * eina_init() again to use the Eina functions again.
231 if (EINA_UNLIKELY(_eina_main_count == 0))
232 _eina_shutdown_from_desc(_eina_desc_setup + _eina_desc_setup_len);
233 return _eina_main_count;
238 * @brief Initialize the mutexs of the Eina library.
240 * @return 1 or greater on success, 0 on error.
242 * This function sets up all the mutexs in all eina modules. It returns 0 on
243 * failure (that is, when one of the module fails to initialize),
244 * otherwise it returns the number of times it has already been
247 * When the mutexs are not used anymore, call eina_thread_shutdown() to shut down
251 eina_threads_init(void)
253 #ifdef EFL_HAVE_PTHREAD
257 ++_eina_main_thread_count;
258 ret = _eina_main_thread_count;
260 if(_eina_main_thread_count > 1)
266 eina_stringshare_threads_init();
267 eina_log_threads_init();
268 _threads_activated = EINA_TRUE;
277 * @brief Shut down mutexs in the Eina library.
279 * @return 0 when all mutexs are completely shut down, 1 or
282 * This function shuts down the mutexs in the Eina library. It returns 0 when it has
283 * been called the same number of times than eina_thread_init(). In that case
284 * it shut down all the mutexs.
286 * Once this function succeeds (that is, @c 0 is returned), you must
287 * not call any of the Eina function in a thread anymore. You must call
288 * eina_thread_init() again to use the Eina functions in a thread again.
291 eina_threads_shutdown(void)
293 #ifdef EFL_HAVE_PTHREAD
297 ret = --_eina_main_thread_count;
298 if(_eina_main_thread_count > 0)
304 eina_stringshare_threads_shutdown();
305 eina_log_threads_shutdown();
307 _threads_activated = EINA_FALSE;