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 #ifdef EFL_HAVE_PTHREAD
52 static int _eina_main_thread_count = 0;
54 static int _eina_log_dom = -1;
59 #define ERR(...) EINA_LOG_DOM_ERR(_eina_log_dom, __VA_ARGS__)
64 #define DBG(...) EINA_LOG_DOM_DBG(_eina_log_dom, __VA_ARGS__)
66 #ifdef EFL_HAVE_PTHREAD
68 static Eina_Bool _threads_activated = EINA_FALSE;
69 static pthread_mutex_t _mutex = PTHREAD_MUTEX_INITIALIZER;
70 #define LOCK() if(_threads_activated) pthread_mutex_lock(&_mutex);
71 #define UNLOCK() if(_threads_activated) pthread_mutex_unlock(&_mutex);
72 #define UNLOCK_FORCE() pthread_mutex_unlock(&_mutex);
74 #define LOCK() do {} while (0)
75 #define UNLOCK() do {} while (0)
76 #define UNLOCK_FORCE() do {} while (0)
79 /* place module init/shutdown functions here to avoid other modules
80 * calling them by mistake.
82 #define S(x) extern Eina_Bool eina_##x##_init(void); extern Eina_Bool eina_##x##_shutdown(void)
101 struct eina_desc_setup
104 Eina_Bool (*init)(void);
105 Eina_Bool (*shutdown)(void);
108 static const struct eina_desc_setup _eina_desc_setup[] = {
109 #define S(x) {#x, eina_##x##_init, eina_##x##_shutdown}
110 /* log is a special case as it needs printf */
128 static const size_t _eina_desc_setup_len = sizeof(_eina_desc_setup) / sizeof(_eina_desc_setup[0]);
131 _eina_shutdown_from_desc(const struct eina_desc_setup *itr)
133 for (itr--; itr >= _eina_desc_setup; itr--)
135 if (!itr->shutdown())
136 ERR("Problems shutting down eina module '%s', ignored.", itr->name);
139 eina_log_domain_unregister(_eina_log_dom);
148 /*============================================================================*
150 *============================================================================*/
152 /*============================================================================*
154 *============================================================================*/
157 * @addtogroup Eina_Main_Group Main
159 * @brief These functions provide general initialisation and shut down
166 * @brief Initialize the Eina library.
168 * @return 1 or greater on success, 0 on error.
170 * This function sets up all the eina modules. It returns 0 on
171 * failure (that is, when one of the module fails to initialize),
172 * otherwise it returns the number of times it has already been
175 * When Eina is not used anymore, call eina_shutdown() to shut down
181 const struct eina_desc_setup *itr, *itr_end;
183 if (EINA_LIKELY(_eina_main_count > 0))
184 return ++_eina_main_count;
186 if (!eina_log_init())
188 fprintf(stderr, "Could not initialize eina logging system.\n");
191 _eina_log_dom = eina_log_domain_register("eina", EINA_LOG_COLOR_DEFAULT);
192 if (_eina_log_dom < 0)
194 EINA_LOG_ERR("Could not register log domain: eina");
199 itr = _eina_desc_setup;
200 itr_end = itr + _eina_desc_setup_len;
201 for (; itr < itr_end; itr++)
205 ERR("Could not initialize eina module '%s'.", itr->name);
206 _eina_shutdown_from_desc(itr);
211 _eina_main_count = 1;
216 * @brief Shut down the Eina library.
218 * @return 0 when all the modules is completely shut down, 1 or
221 * This function shuts down the Eina library. It returns 0 when it has
222 * been called the same number of times than eina_init(). In that case
223 * it shut down all the Eina modules.
225 * Once this function succeeds (that is, @c 0 is returned), you must
226 * not call any of the Eina function anymore. You must call
227 * eina_init() again to use the Eina functions again.
233 if (EINA_UNLIKELY(_eina_main_count == 0))
234 _eina_shutdown_from_desc(_eina_desc_setup + _eina_desc_setup_len);
235 return _eina_main_count;
240 * @brief Initialize the mutexs of the Eina library.
242 * @return 1 or greater on success, 0 on error.
244 * This function sets up all the mutexs in all eina modules. It returns 0 on
245 * failure (that is, when one of the module fails to initialize),
246 * otherwise it returns the number of times it has already been
249 * When the mutexs are not used anymore, call eina_thread_shutdown() to shut down
253 eina_threads_init(void)
255 #ifdef EFL_HAVE_PTHREAD
259 ++_eina_main_thread_count;
260 ret = _eina_main_thread_count;
262 if(_eina_main_thread_count > 1)
268 eina_stringshare_threads_init();
269 eina_log_threads_init();
270 _threads_activated = EINA_TRUE;
279 * @brief Shut down mutexs in the Eina library.
281 * @return 0 when all mutexs are completely shut down, 1 or
284 * This function shuts down the mutexs in the Eina library. It returns 0 when it has
285 * been called the same number of times than eina_thread_init(). In that case
286 * it shut down all the mutexs.
288 * Once this function succeeds (that is, @c 0 is returned), you must
289 * not call any of the Eina function in a thread anymore. You must call
290 * eina_thread_init() again to use the Eina functions in a thread again.
293 eina_threads_shutdown(void)
295 #ifdef EFL_HAVE_PTHREAD
299 ret = --_eina_main_thread_count;
300 if(_eina_main_thread_count > 0)
306 eina_stringshare_threads_shutdown();
307 eina_log_threads_shutdown();
309 _threads_activated = EINA_FALSE;