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 #ifdef EFL_HAVE_POSIX_THREADS
29 #ifdef EFL_HAVE_WIN32_THREADS
30 # define WIN32_LEAN_AND_MEAN
32 # undef WIN32_LEAN_AND_MEAN
35 #include "eina_config.h"
36 #include "eina_private.h"
37 #include "eina_types.h"
38 #include "eina_main.h"
39 #include "eina_error.h"
41 #include "eina_hash.h"
42 #include "eina_binshare.h"
43 #include "eina_stringshare.h"
44 #include "eina_ustringshare.h"
45 #include "eina_list.h"
46 #include "eina_matrixsparse.h"
47 #include "eina_array.h"
48 #include "eina_counter.h"
49 #include "eina_benchmark.h"
50 #include "eina_magic.h"
51 #include "eina_rectangle.h"
52 #include "eina_safety_checks.h"
54 static Eina_Version _version = { VMAJ, VMIN, VMIC, VREV };
55 EAPI Eina_Version *eina_version = &_version;
57 /*============================================================================*
59 *============================================================================*/
65 static int _eina_main_count = 0;
66 #ifdef EFL_HAVE_THREADS
67 static int _eina_main_thread_count = 0;
69 static int _eina_log_dom = -1;
74 #define ERR(...) EINA_LOG_DOM_ERR(_eina_log_dom, __VA_ARGS__)
79 #define DBG(...) EINA_LOG_DOM_DBG(_eina_log_dom, __VA_ARGS__)
81 #ifdef EFL_HAVE_THREADS
82 static Eina_Bool _threads_activated = EINA_FALSE;
83 # ifdef EFL_HAVE_POSIX_THREADS
84 static pthread_mutex_t _mutex = PTHREAD_MUTEX_INITIALIZER;
85 # define LOCK() if(_threads_activated) pthread_mutex_lock(&_mutex)
86 # define UNLOCK() if(_threads_activated) pthread_mutex_unlock(&_mutex)
87 # define UNLOCK_FORCE() pthread_mutex_unlock(&_mutex)
88 # else /* EFL_HAVE_WIN32_THREADS */
89 static HANDLE _mutex = NULL;
90 # define LOCK() if(_threads_activated) WaitForSingleObject(_mutex, INFINITE)
91 # define UNLOCK() if(_threads_activated) ReleaseMutex(_mutex)
92 # define UNLOCK_FORCE() ReleaseMutex(_mutex)
95 # define LOCK() do {} while (0)
96 # define UNLOCK() do {} while (0)
97 # define UNLOCK_FORCE() do {} while (0)
100 /* place module init/shutdown functions here to avoid other modules
101 * calling them by mistake.
103 #define S(x) extern Eina_Bool eina_ ## x ## _init(void); \
104 extern Eina_Bool eina_ ## x ## _shutdown(void)
128 struct eina_desc_setup
131 Eina_Bool (*init)(void);
132 Eina_Bool (*shutdown)(void);
135 static const struct eina_desc_setup _eina_desc_setup[] = {
136 #define S(x) {# x, eina_ ## x ## _init, eina_ ## x ## _shutdown}
137 /* log is a special case as it needs printf */
160 static const size_t _eina_desc_setup_len = sizeof(_eina_desc_setup) /
161 sizeof(_eina_desc_setup[0]);
164 _eina_shutdown_from_desc(const struct eina_desc_setup *itr)
166 for (itr--; itr >= _eina_desc_setup; itr--)
168 if (!itr->shutdown())
169 ERR("Problems shutting down eina module '%s', ignored.", itr->name);
172 eina_log_domain_unregister(_eina_log_dom);
181 /*============================================================================*
183 *============================================================================*/
185 /*============================================================================*
187 *============================================================================*/
190 * @addtogroup Eina_Main_Group Main
192 * @brief These functions provide general initialisation and shut down
199 * @brief Initialize the Eina library.
201 * @return 1 or greater on success, 0 on error.
203 * This function sets up all the eina modules. It returns 0 on
204 * failure (that is, when one of the module fails to initialize),
205 * otherwise it returns the number of times it has already been
208 * When Eina is not used anymore, call eina_shutdown() to shut down
214 const struct eina_desc_setup *itr, *itr_end;
216 if (EINA_LIKELY(_eina_main_count > 0))
217 return ++_eina_main_count;
219 if (!eina_log_init())
221 fprintf(stderr, "Could not initialize eina logging system.\n");
225 _eina_log_dom = eina_log_domain_register("eina", EINA_LOG_COLOR_DEFAULT);
226 if (_eina_log_dom < 0)
228 EINA_LOG_ERR("Could not register log domain: eina");
233 itr = _eina_desc_setup;
234 itr_end = itr + _eina_desc_setup_len;
235 for (; itr < itr_end; itr++)
239 ERR("Could not initialize eina module '%s'.", itr->name);
240 _eina_shutdown_from_desc(itr);
245 _eina_main_count = 1;
250 * @brief Shut down the Eina library.
252 * @return 0 when all the modules is completely shut down, 1 or
255 * This function shuts down the Eina library. It returns 0 when it has
256 * been called the same number of times than eina_init(). In that case
257 * it shut down all the Eina modules.
259 * Once this function succeeds (that is, @c 0 is returned), you must
260 * not call any of the Eina function anymore. You must call
261 * eina_init() again to use the Eina functions again.
267 if (EINA_UNLIKELY(_eina_main_count == 0))
268 _eina_shutdown_from_desc(_eina_desc_setup + _eina_desc_setup_len);
270 return _eina_main_count;
275 * @brief Initialize the mutexs of the Eina library.
277 * @return 1 or greater on success, 0 on error.
279 * This function sets up all the mutexs in all eina modules. It returns 0 on
280 * failure (that is, when one of the module fails to initialize),
281 * otherwise it returns the number of times it has already been
284 * When the mutexs are not used anymore, call eina_thread_shutdown() to shut down
288 eina_threads_init(void)
290 #ifdef EFL_HAVE_THREADS
293 # ifdef EFL_HAVE_WIN32_THREADS
295 _mutex = CreateMutex(NULL, FALSE, NULL);
303 ++_eina_main_thread_count;
304 ret = _eina_main_thread_count;
306 if(_eina_main_thread_count > 1)
312 eina_share_common_threads_init();
313 eina_log_threads_init();
314 #ifdef EFL_RWLOCKS_ENABLE
315 eina_array_threadsafety_init();
317 _threads_activated = EINA_TRUE;
326 * @brief Shut down mutexs in the Eina library.
328 * @return 0 when all mutexs are completely shut down, 1 or
331 * This function shuts down the mutexs in the Eina library. It returns 0 when it has
332 * been called the same number of times than eina_thread_init(). In that case
333 * it shut down all the mutexs.
335 * Once this function succeeds (that is, @c 0 is returned), you must
336 * not call any of the Eina function in a thread anymore. You must call
337 * eina_thread_init() again to use the Eina functions in a thread again.
340 eina_threads_shutdown(void)
342 #ifdef EFL_HAVE_THREADS
346 ret = --_eina_main_thread_count;
347 if(_eina_main_thread_count > 0)
353 eina_share_common_threads_shutdown();
354 eina_log_threads_shutdown();
355 #ifdef EFL_RWLOCKS_ENABLE
356 eina_array_threadsafety_shutdown();
359 _threads_activated = EINA_FALSE;
363 # ifdef EFL_HAVE_WIN32_THREADS