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 /*============================================================================*
56 *============================================================================*/
62 static Eina_Version _version = { VMAJ, VMIN, VMIC, VREV };
64 static int _eina_main_count = 0;
65 #ifdef EFL_HAVE_THREADS
66 static int _eina_main_thread_count = 0;
68 static int _eina_log_dom = -1;
73 #define ERR(...) EINA_LOG_DOM_ERR(_eina_log_dom, __VA_ARGS__)
78 #define DBG(...) EINA_LOG_DOM_DBG(_eina_log_dom, __VA_ARGS__)
80 Eina_Bool _threads_activated = EINA_FALSE;
82 #ifdef EFL_HAVE_THREADS
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)
129 struct eina_desc_setup
132 Eina_Bool (*init)(void);
133 Eina_Bool (*shutdown)(void);
136 static const struct eina_desc_setup _eina_desc_setup[] = {
137 #define S(x) {# x, eina_ ## x ## _init, eina_ ## x ## _shutdown}
138 /* log is a special case as it needs printf */
162 static const size_t _eina_desc_setup_len = sizeof(_eina_desc_setup) /
163 sizeof(_eina_desc_setup[0]);
166 _eina_shutdown_from_desc(const struct eina_desc_setup *itr)
168 for (itr--; itr >= _eina_desc_setup; itr--)
170 if (!itr->shutdown())
171 ERR("Problems shutting down eina module '%s', ignored.", itr->name);
174 eina_log_domain_unregister(_eina_log_dom);
183 /*============================================================================*
185 *============================================================================*/
188 /*============================================================================*
190 *============================================================================*/
193 * @addtogroup Eina_Main_Group Main
195 * @brief These functions provide general initialisation and shut down
203 * @brief Eina version (defined at configuration time)
205 EAPI Eina_Version *eina_version = &_version;
208 * @brief Initialize the Eina library.
210 * @return 1 or greater on success, 0 on error.
212 * This function sets up all the eina modules. It returns 0 on
213 * failure (that is, when one of the module fails to initialize),
214 * otherwise it returns the number of times it has already been
217 * When Eina is not used anymore, call eina_shutdown() to shut down
223 const struct eina_desc_setup *itr, *itr_end;
225 if (EINA_LIKELY(_eina_main_count > 0))
226 return ++_eina_main_count;
228 if (!eina_log_init())
230 fprintf(stderr, "Could not initialize eina logging system.\n");
234 _eina_log_dom = eina_log_domain_register("eina", EINA_LOG_COLOR_DEFAULT);
235 if (_eina_log_dom < 0)
237 EINA_LOG_ERR("Could not register log domain: eina");
242 itr = _eina_desc_setup;
243 itr_end = itr + _eina_desc_setup_len;
244 for (; itr < itr_end; itr++)
248 ERR("Could not initialize eina module '%s'.", itr->name);
249 _eina_shutdown_from_desc(itr);
254 _eina_main_count = 1;
259 * @brief Shut down the Eina library.
261 * @return 0 when all the modules is completely shut down, 1 or
264 * This function shuts down the Eina library. It returns 0 when it has
265 * been called the same number of times than eina_init(). In that case
266 * it shut down all the Eina modules.
268 * Once this function succeeds (that is, @c 0 is returned), you must
269 * not call any of the Eina function anymore. You must call
270 * eina_init() again to use the Eina functions again.
276 if (EINA_UNLIKELY(_eina_main_count == 0))
277 _eina_shutdown_from_desc(_eina_desc_setup + _eina_desc_setup_len);
279 return _eina_main_count;
284 * @brief Initialize the mutexes of the Eina library.
286 * @return 1 or greater on success, 0 on error.
288 * This function sets up all the mutexes in all eina modules. It returns 0 on
289 * failure (that is, when one of the module fails to initialize),
290 * otherwise it returns the number of times it has already been
293 * When the mutexes are not used anymore, call eina_threads_shutdown() to shut down
297 eina_threads_init(void)
299 #ifdef EFL_HAVE_THREADS
302 # ifdef EFL_HAVE_WIN32_THREADS
304 _mutex = CreateMutex(NULL, FALSE, NULL);
312 ++_eina_main_thread_count;
313 ret = _eina_main_thread_count;
315 if(_eina_main_thread_count > 1)
321 eina_share_common_threads_init();
322 eina_log_threads_init();
323 _threads_activated = EINA_TRUE;
332 * @brief Shut down mutexes in the Eina library.
334 * @return 0 when all mutexes are completely shut down, 1 or
337 * This function shuts down the mutexes in the Eina library. It returns 0 when it has
338 * been called the same number of times than eina_threads_init(). In that case
339 * it shut down all the mutexes.
341 * Once this function succeeds (that is, @c 0 is returned), you must
342 * not call any of the Eina function in a thread anymore. You must call
343 * eina_threads_init() again to use the Eina functions in a thread again.
346 eina_threads_shutdown(void)
348 #ifdef EFL_HAVE_THREADS
352 ret = --_eina_main_thread_count;
353 if(_eina_main_thread_count > 0)
359 eina_share_common_threads_shutdown();
360 eina_log_threads_shutdown();
362 _threads_activated = EINA_FALSE;
366 # ifdef EFL_HAVE_WIN32_THREADS