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_WIN32_THREADS
26 # define WIN32_LEAN_AND_MEAN
28 # undef WIN32_LEAN_AND_MEAN
31 #ifdef EFL_HAVE_THREADS
32 # ifdef HAVE_SYS_TYPES_H
33 # include <sys/types.h>
50 #include "eina_lock.h"
51 #include "eina_config.h"
52 #include "eina_private.h"
53 #include "eina_types.h"
54 #include "eina_main.h"
55 #include "eina_error.h"
57 #include "eina_hash.h"
58 #include "eina_binshare.h"
59 #include "eina_stringshare.h"
60 #include "eina_ustringshare.h"
61 #include "eina_list.h"
62 #include "eina_matrixsparse.h"
63 #include "eina_array.h"
64 #include "eina_counter.h"
65 #include "eina_benchmark.h"
66 #include "eina_magic.h"
67 #include "eina_rectangle.h"
68 #include "eina_safety_checks.h"
69 #include "eina_inlist.h"
70 #include "eina_inarray.h"
72 /*============================================================================*
74 *============================================================================*/
80 static Eina_Version _version = { VMAJ, VMIN, VMIC, VREV };
82 static int _eina_main_count = 0;
83 #ifdef EFL_HAVE_THREADS
84 static int _eina_main_thread_count = 0;
86 static int _eina_log_dom = -1;
91 #define ERR(...) EINA_LOG_DOM_ERR(_eina_log_dom, __VA_ARGS__)
96 #define DBG(...) EINA_LOG_DOM_DBG(_eina_log_dom, __VA_ARGS__)
98 EAPI Eina_Bool _eina_threads_activated = EINA_FALSE;
99 EAPI Eina_Error EINA_ERROR_NOT_MAIN_LOOP = 0;
101 static const char EINA_ERROR_NOT_MAIN_LOOP_STR[] = "Main loop thread check failed.";
103 #ifdef EFL_HAVE_THREADS
105 EAPI DWORD _eina_main_loop;
107 EAPI pthread_t _eina_main_loop;
109 static pid_t _eina_pid;
113 static int _mt_enabled = 0;
116 #ifdef EFL_HAVE_THREADS
117 EAPI int _eina_threads_debug = 0;
118 # if !defined(_WIN32_WCE) && !defined(_WIN32)
119 EAPI pthread_mutex_t _eina_tracking_lock;
120 EAPI Eina_Inlist *_eina_tracking = NULL;
124 /* place module init/shutdown functions here to avoid other modules
125 * calling them by mistake.
127 #define S(x) extern Eina_Bool eina_ ## x ## _init(void); \
128 extern Eina_Bool eina_ ## x ## _shutdown(void)
156 struct eina_desc_setup
159 Eina_Bool (*init)(void);
160 Eina_Bool (*shutdown)(void);
163 static const struct eina_desc_setup _eina_desc_setup[] = {
164 #define S(x) {# x, eina_ ## x ## _init, eina_ ## x ## _shutdown}
165 /* log is a special case as it needs printf */
192 static const size_t _eina_desc_setup_len = sizeof(_eina_desc_setup) /
193 sizeof(_eina_desc_setup[0]);
196 _eina_shutdown_from_desc(const struct eina_desc_setup *itr)
198 for (itr--; itr >= _eina_desc_setup; itr--)
200 if (!itr->shutdown())
201 ERR("Problems shutting down eina module '%s', ignored.", itr->name);
204 eina_log_domain_unregister(_eina_log_dom);
213 /*============================================================================*
215 *============================================================================*/
218 /*============================================================================*
220 *============================================================================*/
224 * @brief Eina version (defined at configuration time)
226 EAPI Eina_Version *eina_version = &_version;
231 const struct eina_desc_setup *itr, *itr_end;
233 if (EINA_LIKELY(_eina_main_count > 0))
234 return ++_eina_main_count;
237 if ((getenv("EINA_MTRACE")) && (getenv("MALLOC_TRACE")))
244 if (!eina_log_init())
246 fprintf(stderr, "Could not initialize eina logging system.\n");
250 _eina_log_dom = eina_log_domain_register("eina", EINA_LOG_COLOR_DEFAULT);
251 if (_eina_log_dom < 0)
253 EINA_LOG_ERR("Could not register log domain: eina");
258 EINA_ERROR_NOT_MAIN_LOOP = eina_error_msg_static_register(
259 EINA_ERROR_NOT_MAIN_LOOP_STR);
261 #ifdef EFL_HAVE_THREADS
263 _eina_main_loop = GetCurrentThreadId();
265 _eina_main_loop = pthread_self();
267 _eina_pid = getpid();
270 #ifdef EINA_HAVE_DEBUG_THREADS
271 pthread_mutex_init(&_eina_tracking_lock, NULL);
273 if (getenv("EINA_DEBUG_THREADS"))
274 _eina_threads_debug = atoi(getenv("EINA_DEBUG_THREADS"));
277 itr = _eina_desc_setup;
278 itr_end = itr + _eina_desc_setup_len;
279 for (; itr < itr_end; itr++)
283 ERR("Could not initialize eina module '%s'.", itr->name);
284 _eina_shutdown_from_desc(itr);
289 _eina_main_count = 1;
297 if (EINA_UNLIKELY(_eina_main_count == 0))
299 _eina_shutdown_from_desc(_eina_desc_setup + _eina_desc_setup_len);
301 #ifdef EINA_HAVE_DEBUG_THREADS
302 pthread_mutex_destroy(&_eina_tracking_lock);
313 return _eina_main_count;
318 eina_threads_init(void)
320 #ifdef EFL_HAVE_THREADS
323 #ifdef EINA_HAVE_DEBUG_THREADS
324 assert(pthread_equal(_eina_main_loop, pthread_self()));
327 ++_eina_main_thread_count;
328 ret = _eina_main_thread_count;
330 if(_eina_main_thread_count > 1)
333 eina_share_common_threads_init();
334 eina_log_threads_init();
335 _eina_threads_activated = EINA_TRUE;
344 eina_threads_shutdown(void)
346 #ifdef EFL_HAVE_THREADS
349 #ifdef EINA_HAVE_DEBUG_THREADS
352 assert(pthread_equal(_eina_main_loop, pthread_self()));
353 assert(_eina_main_thread_count > 0);
356 ret = --_eina_main_thread_count;
357 if(_eina_main_thread_count > 0)
360 #ifdef EINA_HAVE_DEBUG_THREADS
361 pthread_mutex_lock(&_eina_tracking_lock);
364 fprintf(stderr, "*************************\n");
365 fprintf(stderr, "* The IMPOSSIBLE HAPPEN *\n");
366 fprintf(stderr, "* LOCK STILL TAKEN : *\n");
367 fprintf(stderr, "*************************\n");
368 EINA_INLIST_FOREACH(_eina_tracking, lk)
370 fprintf(stderr, "*************************\n");
373 pthread_mutex_unlock(&_eina_tracking_lock);
376 eina_share_common_threads_shutdown();
377 eina_log_threads_shutdown();
379 _eina_threads_activated = EINA_FALSE;
388 eina_main_loop_is(void)
390 #ifdef EFL_HAVE_THREADS
391 pid_t pid = getpid();
394 if (pid != _eina_pid)
397 _eina_main_loop = GetCurrentThreadId();
400 if (_eina_main_loop == GetCurrentThreadId())
403 if (pid != _eina_pid)
405 /* This is in case of a fork, but don't like the solution */
407 _eina_main_loop = pthread_self();
411 if (pthread_equal(_eina_main_loop, pthread_self()))
418 /** The purpose of this API should not be documented, it is used only by the one who know what they are doing. */
420 eina_main_loop_define(void)
422 #ifdef EFL_HAVE_THREADS
423 _eina_pid = getpid();
425 _eina_main_loop = GetCurrentThreadId();
427 _eina_main_loop = pthread_self();