#ifdef HAVE_CONFIG_H # include #endif #ifdef _WIN32 # define WIN32_LEAN_AND_MEAN # include # undef WIN32_LEAN_AND_MEAN # ifndef USER_TIMER_MINIMUM # define USER_TIMER_MINIMUM 0x0a # endif #endif #ifdef __SUNPRO_C # include # include #endif #include #include #include #include #include #include #ifdef HAVE_SYS_TIME_H # include #endif #ifdef HAVE_UNISTD_H # include #endif #ifdef _MSC_VER # include #endif #ifdef HAVE_ISFINITE # define ECORE_FINITE(t) isfinite(t) #else # ifdef _MSC_VER # define ECORE_FINITE(t) _finite(t) # else # define ECORE_FINITE(t) finite(t) # endif #endif //#define FIX_HZ 1 #ifdef FIX_HZ # ifndef _MSC_VER # include # endif # ifndef HZ # define HZ 100 # endif #endif #ifdef HAVE_EVIL # include #endif #include "Ecore.h" #include "ecore_private.h" #ifdef HAVE_SYS_EPOLL_H # define HAVE_EPOLL 1 # include #else # define HAVE_EPOLL 0 # define EPOLLIN 1 # define EPOLLPRI 2 # define EPOLLOUT 4 # define EPOLLERR 8 #define EPOLL_CTL_ADD 1 #define EPOLL_CTL_DEL 2 #define EPOLL_CTL_MOD 3 typedef union epoll_data { void *ptr; int fd; uint32_t u32; uint64_t u64; } epoll_data_t; struct epoll_event { uint32_t events; epoll_data_t data; }; static inline int epoll_create(int size EINA_UNUSED) { return -1; } static inline int epoll_wait(int epfd EINA_UNUSED, struct epoll_event *events EINA_UNUSED, int maxevents EINA_UNUSED, int timeout EINA_UNUSED) { return -1; } static inline int epoll_ctl(int epfd EINA_UNUSED, int op EINA_UNUSED, int fd EINA_UNUSED, struct epoll_event *event EINA_UNUSED) { return -1; } #endif #ifdef HAVE_SYS_TIMERFD_H # include #else /* fallback code if we don't have real timerfd - reduces number of ifdefs */ # ifndef CLOCK_MONOTONIC # define CLOCK_MONOTONIC 0 /* bogus value */ # endif # ifndef TFD_NONBLOCK # define TFD_NONBLOCK 0 /* bogus value */ # endif #endif /* HAVE_SYS_TIMERFD_H */ #ifndef HAVE_TIMERFD_CREATE static inline int timerfd_create(int clockid EINA_UNUSED, int flags EINA_UNUSED) { return -1; } static inline int timerfd_settime(int fd EINA_UNUSED, int flags EINA_UNUSED, const struct itimerspec *new_value EINA_UNUSED, struct itimerspec *old_value EINA_UNUSED) { return -1; } #endif /* HAVE_TIMERFD_CREATE */ #ifdef USE_G_MAIN_LOOP # include #endif #define NS_PER_SEC (1000.0 * 1000.0 * 1000.0) struct _Ecore_Fd_Handler { EINA_INLIST; ECORE_MAGIC; Ecore_Fd_Handler *next_ready; int fd; Ecore_Fd_Handler_Flags flags; Ecore_Fd_Cb func; void *data; Ecore_Fd_Cb buf_func; void *buf_data; Ecore_Fd_Prep_Cb prep_func; void *prep_data; int references; Eina_Bool read_active : 1; Eina_Bool write_active : 1; Eina_Bool error_active : 1; Eina_Bool delete_me : 1; Eina_Bool file : 1; #if defined(USE_G_MAIN_LOOP) GPollFD gfd; #endif }; GENERIC_ALLOC_SIZE_DECLARE(Ecore_Fd_Handler); #ifdef _WIN32 struct _Ecore_Win32_Handler { EINA_INLIST; ECORE_MAGIC; HANDLE h; Ecore_Win32_Handle_Cb func; void *data; int references; Eina_Bool delete_me : 1; }; GENERIC_ALLOC_SIZE_DECLARE(Ecore_Win32_Handler); #endif #ifndef USE_G_MAIN_LOOP static int _ecore_main_select(double timeout); #endif static void _ecore_main_prepare_handlers(void); static void _ecore_main_fd_handlers_cleanup(void); #ifndef _WIN32 # ifndef USE_G_MAIN_LOOP static void _ecore_main_fd_handlers_bads_rem(void); # endif #endif static void _ecore_main_fd_handlers_call(void); static int _ecore_main_fd_handlers_buf_call(void); #ifndef USE_G_MAIN_LOOP static void _ecore_main_loop_iterate_internal(int once_only); #endif #ifdef _WIN32 static int _ecore_main_win32_select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout); static void _ecore_main_win32_handlers_cleanup(void); #endif static int in_main_loop = 0; static int do_quit = 0; static Ecore_Fd_Handler *fd_handlers = NULL; static Ecore_Fd_Handler *fd_handler_current = NULL; static Eina_List *fd_handlers_with_prep = NULL; static Eina_List *file_fd_handlers = NULL; static Eina_List *fd_handlers_with_buffer = NULL; static Eina_List *fd_handlers_to_delete = NULL; /* single linked list of ready fdhs, terminated by loop to self */ static Ecore_Fd_Handler *fd_handlers_to_call; static Ecore_Fd_Handler *fd_handlers_to_call_current; #ifdef _WIN32 static Ecore_Win32_Handler *win32_handlers = NULL; static Ecore_Win32_Handler *win32_handler_current = NULL; static Eina_Bool win32_handlers_delete_me = EINA_FALSE; #endif #ifdef _WIN32 Ecore_Select_Function main_loop_select = _ecore_main_win32_select; #else # if !defined EXOTIC_NO_SELECT # ifdef HAVE_SYS_SELECT_H # include # endif Ecore_Select_Function main_loop_select = select; # else Ecore_Select_Function main_loop_select = NULL; # endif #endif #ifndef USE_G_MAIN_LOOP static double t1 = 0.0; static double t2 = 0.0; #endif static int timer_fd = -1; static int epoll_fd = -1; static pid_t epoll_pid; #ifdef USE_G_MAIN_LOOP static GPollFD ecore_epoll_fd; static GPollFD ecore_timer_fd; static GSource *ecore_glib_source; static guint ecore_glib_source_id; static GMainLoop *ecore_main_loop; static gboolean ecore_idling; static gboolean _ecore_glib_idle_enterer_called; static gboolean ecore_fds_ready; #endif Eina_Bool _ecore_fd_close_on_exec(int fd) { #ifdef HAVE_EXECVP int flags; flags = fcntl(fd, F_GETFD); if (flags == -1) return EINA_FALSE; flags |= FD_CLOEXEC; if (fcntl(fd, F_SETFD, flags) == -1) return EINA_FALSE; return EINA_TRUE; #else (void) fd; return EINA_FALSE; #endif } static inline void _ecore_fd_valid(void) { if (HAVE_EPOLL && epoll_fd >= 0) { if (fcntl(epoll_fd, F_GETFD) < 0) { ERR("arghhh you caught me! report a backtrace to edevel!"); pause(); } } } static inline void _ecore_try_add_to_call_list(Ecore_Fd_Handler *fdh) { /* check if this fdh is already in the list */ if (fdh->next_ready) return; if (fdh->read_active || fdh->write_active || fdh->error_active) { /* * make sure next_ready is non-null by pointing to ourselves * use that to indicate this fdh is in the ready list * insert at the head of the list to avoid trouble */ fdh->next_ready = fd_handlers_to_call ? fd_handlers_to_call : fdh; fd_handlers_to_call = fdh; } } static inline int _ecore_get_epoll_fd(void) { if (epoll_pid && epoll_pid != getpid()) { /* forked! */ _ecore_main_loop_shutdown(); } if (epoll_pid == 0 && epoll_fd < 0) { _ecore_main_loop_init(); } return epoll_fd; } static inline int _ecore_epoll_add(int efd, int fd, int events, void *ptr) { struct epoll_event ev; memset(&ev, 0, sizeof (ev)); ev.events = events; ev.data.ptr = ptr; INF("adding poll on %d %08x", fd, events); return epoll_ctl(efd, EPOLL_CTL_ADD, fd, &ev); } static inline int _ecore_poll_events_from_fdh(Ecore_Fd_Handler *fdh) { int events = 0; if (fdh->flags & ECORE_FD_READ) events |= EPOLLIN; if (fdh->flags & ECORE_FD_WRITE) events |= EPOLLOUT; if (fdh->flags & ECORE_FD_ERROR) events |= EPOLLERR | EPOLLPRI; return events; } #ifdef USE_G_MAIN_LOOP static inline int _gfd_events_from_fdh(Ecore_Fd_Handler *fdh) { int events = 0; if (fdh->flags & ECORE_FD_READ) events |= G_IO_IN; if (fdh->flags & ECORE_FD_WRITE) events |= G_IO_OUT; if (fdh->flags & ECORE_FD_ERROR) events |= G_IO_ERR; return events; } #endif static inline int _ecore_main_fdh_poll_add(Ecore_Fd_Handler *fdh) { int r = 0; if ((!fdh->file) && HAVE_EPOLL && epoll_fd >= 0) { r = _ecore_epoll_add(_ecore_get_epoll_fd(), fdh->fd, _ecore_poll_events_from_fdh(fdh), fdh); } else { #ifdef USE_G_MAIN_LOOP fdh->gfd.fd = fdh->fd; fdh->gfd.events = _gfd_events_from_fdh(fdh); fdh->gfd.revents = 0; INF("adding gpoll on %d %08x", fdh->fd, fdh->gfd.events); g_source_add_poll(ecore_glib_source, &fdh->gfd); #endif } return r; } static inline void _ecore_main_fdh_poll_del(Ecore_Fd_Handler *fdh) { if ((!fdh->file) && HAVE_EPOLL && epoll_fd >= 0) { struct epoll_event ev; int efd = _ecore_get_epoll_fd(); memset(&ev, 0, sizeof (ev)); INF("removing poll on %d", fdh->fd); /* could get an EBADF if somebody closed the FD before removing it */ if ((epoll_ctl(efd, EPOLL_CTL_DEL, fdh->fd, &ev) < 0)) { if (errno == EBADF) { WRN("fd %d was closed, can't remove from epoll - reinit!", fdh->fd); _ecore_main_loop_shutdown(); _ecore_main_loop_init(); } else { ERR("Failed to delete epoll fd %d! (errno=%d)", fdh->fd, errno); } } } else { #ifdef USE_G_MAIN_LOOP fdh->gfd.fd = fdh->fd; fdh->gfd.events = _gfd_events_from_fdh(fdh); fdh->gfd.revents = 0; INF("adding gpoll on %d %08x", fdh->fd, fdh->gfd.events); g_source_add_poll(ecore_glib_source, &fdh->gfd); #endif } } static inline int _ecore_main_fdh_poll_modify(Ecore_Fd_Handler *fdh) { int r = 0; if ((!fdh->file) && HAVE_EPOLL && epoll_fd >= 0) { struct epoll_event ev; int efd = _ecore_get_epoll_fd(); memset(&ev, 0, sizeof (ev)); ev.events = _ecore_poll_events_from_fdh(fdh); ev.data.ptr = fdh; INF("modifing epoll on %d to %08x", fdh->fd, ev.events); r = epoll_ctl(efd, EPOLL_CTL_MOD, fdh->fd, &ev); } else { #ifdef USE_G_MAIN_LOOP fdh->gfd.fd = fdh->fd; fdh->gfd.events = _gfd_events_from_fdh(fdh); fdh->gfd.revents = 0; INF("modifing gpoll on %d to %08x", fdh->fd, fdh->gfd.events); #endif } return r; } static inline int _ecore_main_fdh_epoll_mark_active(void) { struct epoll_event ev[32]; int i, ret; int efd = _ecore_get_epoll_fd(); memset(&ev, 0, sizeof (ev)); ret = epoll_wait(efd, ev, sizeof(ev) / sizeof(struct epoll_event), 0); if (ret < 0) { if (errno == EINTR) return -1; ERR("epoll_wait failed %d", errno); return -1; } for (i = 0; i < ret; i++) { Ecore_Fd_Handler *fdh; fdh = ev[i].data.ptr; if (!ECORE_MAGIC_CHECK(fdh, ECORE_MAGIC_FD_HANDLER)) { ECORE_MAGIC_FAIL(fdh, ECORE_MAGIC_FD_HANDLER, "_ecore_main_fdh_epoll_mark_active"); continue; } if (fdh->delete_me) { ERR("deleted fd in epoll"); continue; } if (ev[i].events & EPOLLIN) fdh->read_active = EINA_TRUE; if (ev[i].events & EPOLLOUT) fdh->write_active = EINA_TRUE; if (ev[i].events & EPOLLERR) fdh->error_active = EINA_TRUE; _ecore_try_add_to_call_list(fdh); } return ret; } #ifdef USE_G_MAIN_LOOP static inline int _ecore_main_fdh_glib_mark_active(void) { Ecore_Fd_Handler *fdh; int ret = 0; /* call the prepare callback for all handlers */ EINA_INLIST_FOREACH(fd_handlers, fdh) { if (fdh->delete_me) continue; if (fdh->gfd.revents & G_IO_IN) fdh->read_active = EINA_TRUE; if (fdh->gfd.revents & G_IO_OUT) fdh->write_active = EINA_TRUE; if (fdh->gfd.revents & G_IO_ERR) fdh->error_active = EINA_TRUE; _ecore_try_add_to_call_list(fdh); if (fdh->gfd.revents & (G_IO_IN | G_IO_OUT | G_IO_ERR)) ret++; } return ret; } /* like we are about to enter main_loop_select in _ecore_main_select */ static gboolean _ecore_main_gsource_prepare(GSource *source EINA_UNUSED, gint *next_time) { gboolean ready = FALSE; _ecore_lock(); in_main_loop++; if (!ecore_idling && !_ecore_glib_idle_enterer_called) { _ecore_time_loop_time = ecore_time_get(); _ecore_timer_expired_timers_call(_ecore_time_loop_time); _ecore_timer_cleanup(); _ecore_idle_enterer_call(); _ecore_throttle(); _ecore_glib_idle_enterer_called = FALSE; if (fd_handlers_with_buffer) _ecore_main_fd_handlers_buf_call(); } _ecore_signal_received_process(); /* don't check fds if somebody quit */ if (g_main_loop_is_running(ecore_main_loop)) { /* only set idling state in dispatch */ if (ecore_idling && !_ecore_idler_exist() && !_ecore_event_exist()) { if (_ecore_timers_exists()) { int r = -1; double t = _ecore_timer_next_get(); if (timer_fd >= 0 && t > 0.0) { struct itimerspec ts; ts.it_interval.tv_sec = 0; ts.it_interval.tv_nsec = 0; ts.it_value.tv_sec = t; ts.it_value.tv_nsec = fmod(t * NS_PER_SEC, NS_PER_SEC); /* timerfd cannot sleep for 0 time */ if (ts.it_value.tv_sec || ts.it_value.tv_nsec) { r = timerfd_settime(timer_fd, 0, &ts, NULL); if (r < 0) { ERR("timer set returned %d (errno=%d)", r, errno); close(timer_fd); timer_fd = -1; } else INF("sleeping for %ld s %06ldus", ts.it_value.tv_sec, ts.it_value.tv_nsec / 1000); } } if (r == -1) { *next_time = ceil(t * 1000.0); if (t == 0.0) ready = TRUE; } } else *next_time = -1; } else { *next_time = 0; if (_ecore_event_exist()) ready = TRUE; } if (fd_handlers_with_prep) _ecore_main_prepare_handlers(); } else ready = TRUE; in_main_loop--; INF("leave, timeout = %d", *next_time); _ecore_unlock(); /* ready if we're not running (about to quit) */ return ready; } static gboolean _ecore_main_gsource_check(GSource *source EINA_UNUSED) { gboolean ret = FALSE; _ecore_lock(); in_main_loop++; /* check if old timers expired */ if (ecore_idling && !_ecore_idler_exist() && !_ecore_event_exist()) { if (timer_fd >= 0) { uint64_t count = 0; int r = read(timer_fd, &count, sizeof count); if (r == -1 && errno == EAGAIN) ; else if (r == sizeof count) ret = TRUE; else { /* unexpected things happened... fail back to old way */ ERR("timer read returned %d (errno=%d)", r, errno); close(timer_fd); timer_fd = -1; } } } else ret = TRUE; /* check if fds are ready */ if (HAVE_EPOLL && epoll_fd >= 0) ecore_fds_ready = (_ecore_main_fdh_epoll_mark_active() > 0); else ecore_fds_ready = (_ecore_main_fdh_glib_mark_active() > 0); _ecore_main_fd_handlers_cleanup(); if (ecore_fds_ready) ret = TRUE; /* check timers after updating loop time */ if (!ret && _ecore_timers_exists()) ret = (0.0 == _ecore_timer_next_get()); in_main_loop--; _ecore_unlock(); return ret; } /* like we just came out of main_loop_select in _ecore_main_select */ static gboolean _ecore_main_gsource_dispatch(GSource *source EINA_UNUSED, GSourceFunc callback EINA_UNUSED, gpointer user_data EINA_UNUSED) { gboolean events_ready, timers_ready, idlers_ready; double next_time; _ecore_lock(); _ecore_time_loop_time = ecore_time_get(); _ecore_timer_enable_new(); next_time = _ecore_timer_next_get(); events_ready = _ecore_event_exist(); timers_ready = _ecore_timers_exists() && (0.0 == next_time); idlers_ready = _ecore_idler_exist(); in_main_loop++; INF("enter idling=%d fds=%d events=%d timers=%d (next=%.2f) idlers=%d", ecore_idling, ecore_fds_ready, events_ready, timers_ready, next_time, idlers_ready); if (ecore_idling && events_ready) { _ecore_idle_exiter_call(); ecore_idling = 0; } else if (!ecore_idling && !events_ready) { ecore_idling = 1; } if (ecore_idling) { _ecore_idler_all_call(); events_ready = _ecore_event_exist(); if (ecore_fds_ready || events_ready || timers_ready) { _ecore_idle_exiter_call(); ecore_idling = 0; } } /* process events */ if (!ecore_idling) { _ecore_main_fd_handlers_call(); if (fd_handlers_with_buffer) _ecore_main_fd_handlers_buf_call(); _ecore_signal_received_process(); _ecore_event_call(); _ecore_main_fd_handlers_cleanup(); _ecore_timer_expired_timers_call(_ecore_time_loop_time); _ecore_timer_cleanup(); _ecore_idle_enterer_call(); _ecore_throttle(); _ecore_glib_idle_enterer_called = TRUE; if (fd_handlers_with_buffer) _ecore_main_fd_handlers_buf_call(); } in_main_loop--; _ecore_unlock(); return TRUE; /* what should be returned here? */ } static void _ecore_main_gsource_finalize(GSource *source EINA_UNUSED) { } static GSourceFuncs ecore_gsource_funcs = { .prepare = _ecore_main_gsource_prepare, .check = _ecore_main_gsource_check, .dispatch = _ecore_main_gsource_dispatch, .finalize = _ecore_main_gsource_finalize, }; #endif void _ecore_main_loop_init(void) { epoll_fd = epoll_create(1); if (epoll_fd < 0) WRN("Failed to create epoll fd!"); epoll_pid = getpid(); _ecore_fd_close_on_exec(epoll_fd); /* add polls on all our file descriptors */ Ecore_Fd_Handler *fdh; EINA_INLIST_FOREACH(fd_handlers, fdh) { if (fdh->delete_me) continue; _ecore_epoll_add(epoll_fd, fdh->fd, _ecore_poll_events_from_fdh(fdh), fdh); _ecore_main_fdh_poll_add(fdh); } /* setup for the g_main_loop only integration */ #ifdef USE_G_MAIN_LOOP ecore_glib_source = g_source_new(&ecore_gsource_funcs, sizeof (GSource)); if (!ecore_glib_source) CRIT("Failed to create glib source for epoll!"); else { g_source_set_priority(ecore_glib_source, G_PRIORITY_HIGH_IDLE + 20); if (HAVE_EPOLL && epoll_fd >= 0) { /* epoll multiplexes fds into the g_main_loop */ ecore_epoll_fd.fd = epoll_fd; ecore_epoll_fd.events = G_IO_IN; ecore_epoll_fd.revents = 0; g_source_add_poll(ecore_glib_source, &ecore_epoll_fd); } /* timerfd gives us better than millisecond accuracy in g_main_loop */ timer_fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK); if (timer_fd < 0) WRN("failed to create timer fd!"); else { _ecore_fd_close_on_exec(timer_fd); ecore_timer_fd.fd = timer_fd; ecore_timer_fd.events = G_IO_IN; ecore_timer_fd.revents = 0; g_source_add_poll(ecore_glib_source, &ecore_timer_fd); } ecore_glib_source_id = g_source_attach(ecore_glib_source, NULL); if (ecore_glib_source_id <= 0) CRIT("Failed to attach glib source to default context"); } #endif } void _ecore_main_loop_shutdown(void) { #ifdef USE_G_MAIN_LOOP if (ecore_glib_source) { g_source_destroy(ecore_glib_source); ecore_glib_source = NULL; } #endif if (epoll_fd >= 0) { close(epoll_fd); epoll_fd = -1; } epoll_pid = 0; if (timer_fd >= 0) { close(timer_fd); timer_fd = -1; } } void * _ecore_main_fd_handler_del(Ecore_Fd_Handler *fd_handler) { if (fd_handler->delete_me) { ERR("fdh %p deleted twice", fd_handler); return NULL; } _ecore_main_fdh_poll_del(fd_handler); fd_handler->delete_me = EINA_TRUE; fd_handlers_to_delete = eina_list_append(fd_handlers_to_delete, fd_handler); if (fd_handler->prep_func && fd_handlers_with_prep) fd_handlers_with_prep = eina_list_remove(fd_handlers_with_prep, fd_handler); if (fd_handler->buf_func && fd_handlers_with_buffer) fd_handlers_with_buffer = eina_list_remove(fd_handlers_with_buffer, fd_handler); return fd_handler->data; } /** * @addtogroup Ecore_Main_Loop_Group * * @{ */ /** * Runs a single iteration of the main loop to process everything on the * queue. * * It does everything that is already done inside an @c Ecore main loop, like * checking for expired timers, idlers, etc. But it will do it only once and * return, instead of keep watching for new events. * * DO NOT use this function unless you are the person God comes to ask for * advice when He has trouble managing the Universe. * * @see ecore_main_loop_iterate_may_block() */ EAPI void ecore_main_loop_iterate(void) { EINA_MAIN_LOOP_CHECK_RETURN; #ifndef USE_G_MAIN_LOOP _ecore_lock(); _ecore_time_loop_time = ecore_time_get(); _ecore_main_loop_iterate_internal(1); _ecore_unlock(); #else g_main_context_iteration(NULL, 0); #endif } /** * Runs a single iteration of the main loop to process everything on the * queue with block/non-blocking status. * * @param may_block A flag if the main loop has a possibility of blocking. * (@c EINA_TRUE = may block/@c EINA_FALSE = non block) * * This is an extension API for ecore_main_loop_iterate() with additional * parameter. It does everything that is already done inside an * @c Ecore main loop, like checking for expired timers, idlers, etc. But it * will do it only once and return, instead of keep watching for new events. * * DO NOT use this function unless you are the person God comes to ask for * advice when He has trouble managing the Universe. * * @see ecore_main_loop_iterate() */ EAPI int ecore_main_loop_iterate_may_block(int may_block) { EINA_MAIN_LOOP_CHECK_RETURN_VAL(0); #ifndef USE_G_MAIN_LOOP _ecore_lock(); _ecore_time_loop_time = ecore_time_get(); in_main_loop++; _ecore_main_loop_iterate_internal(!may_block); in_main_loop--; _ecore_unlock(); return _ecore_event_exist(); #else return g_main_context_iteration(NULL, may_block); #endif } /** * Runs the application main loop. * * This function will not return until @ref ecore_main_loop_quit is called. It * will check for expired timers, idlers, file descriptors being watched by fd * handlers, etc. Once everything is done, before entering again on idle state, * any callback set as @c Idle_Enterer will be called. * * Each main loop iteration is done by calling ecore_main_loop_iterate() * internally. * * The polling (select) function used can be changed with * ecore_main_loop_select_func_set(). * * The function used to check for file descriptors, events, and that has a * timeout for the timers can be changed using * ecore_main_loop_select_func_set(). */ EAPI void ecore_main_loop_begin(void) { EINA_MAIN_LOOP_CHECK_RETURN; #ifndef USE_G_MAIN_LOOP _ecore_lock(); in_main_loop++; _ecore_time_loop_time = ecore_time_get(); while (do_quit == 0) _ecore_main_loop_iterate_internal(0); do_quit = 0; in_main_loop--; _ecore_unlock(); #else if (!do_quit) { if (!ecore_main_loop) ecore_main_loop = g_main_loop_new(NULL, FALSE); g_main_loop_run(ecore_main_loop); } do_quit = 0; #endif } /** * Quits the main loop once all the events currently on the queue have * been processed. * * This function returns immediately, but will mark the ecore_main_loop_begin() * function to return at the end of the current main loop iteration. */ EAPI void ecore_main_loop_quit(void) { EINA_MAIN_LOOP_CHECK_RETURN; do_quit = 1; #ifdef USE_G_MAIN_LOOP if (ecore_main_loop) g_main_loop_quit(ecore_main_loop); #endif } /** * Sets the function to use when monitoring multiple file descriptors, * and waiting until one of more of the file descriptors before ready * for some class of I/O operation. * * This function will be used instead of the system call select and * could possible be used to integrate the Ecore event loop with an * external event loop. * * @warning you don't know how to use, don't even try to use it. * * @param func The function to be used. */ EAPI void ecore_main_loop_select_func_set(Ecore_Select_Function func) { EINA_MAIN_LOOP_CHECK_RETURN; main_loop_select = func; } /** * Gets the select function set by ecore_select_func_set(), * or the native select function if none was set. * */ EAPI Ecore_Select_Function ecore_main_loop_select_func_get(void) { EINA_MAIN_LOOP_CHECK_RETURN_VAL(NULL); return main_loop_select; } Ecore_Fd_Handler * _ecore_main_fd_handler_add(int fd, Ecore_Fd_Handler_Flags flags, Ecore_Fd_Cb func, const void *data, Ecore_Fd_Cb buf_func, const void *buf_data) { Ecore_Fd_Handler *fdh = NULL; if ((fd < 0) || (flags == 0) || (!func)) return NULL; fdh = ecore_fd_handler_calloc(1); if (!fdh) return NULL; ECORE_MAGIC_SET(fdh, ECORE_MAGIC_FD_HANDLER); fdh->next_ready = NULL; fdh->fd = fd; fdh->flags = flags; if (_ecore_main_fdh_poll_add(fdh) < 0) { int err = errno; ERR("Failed to add poll on fd %d (errno = %d: %s)!", fd, err, strerror(err)); ecore_fd_handler_mp_free(fdh); return NULL; } fdh->read_active = EINA_FALSE; fdh->write_active = EINA_FALSE; fdh->error_active = EINA_FALSE; fdh->delete_me = EINA_FALSE; fdh->func = func; fdh->data = (void *)data; fdh->buf_func = buf_func; if (buf_func) fd_handlers_with_buffer = eina_list_append(fd_handlers_with_buffer, fdh); fdh->buf_data = (void *)buf_data; fd_handlers = (Ecore_Fd_Handler *) eina_inlist_append(EINA_INLIST_GET(fd_handlers), EINA_INLIST_GET(fdh)); return fdh; } EAPI Ecore_Fd_Handler * ecore_main_fd_handler_add(int fd, Ecore_Fd_Handler_Flags flags, Ecore_Fd_Cb func, const void *data, Ecore_Fd_Cb buf_func, const void *buf_data) { Ecore_Fd_Handler *fdh = NULL; EINA_MAIN_LOOP_CHECK_RETURN_VAL(NULL); _ecore_lock(); fdh = _ecore_main_fd_handler_add(fd, flags, func, data, buf_func, buf_data); _ecore_unlock(); return fdh; } EAPI Ecore_Fd_Handler * ecore_main_fd_handler_file_add(int fd, Ecore_Fd_Handler_Flags flags, Ecore_Fd_Cb func, const void *data, Ecore_Fd_Cb buf_func, const void *buf_data) { Ecore_Fd_Handler *fdh = NULL; EINA_MAIN_LOOP_CHECK_RETURN_VAL(NULL); _ecore_lock(); if ((fd < 0) || (flags == 0) || (!func)) goto unlock; fdh = ecore_fd_handler_calloc(1); if (!fdh) goto unlock; ECORE_MAGIC_SET(fdh, ECORE_MAGIC_FD_HANDLER); fdh->next_ready = NULL; fdh->fd = fd; fdh->flags = flags; fdh->file = EINA_TRUE; if (_ecore_main_fdh_poll_add(fdh) < 0) { int err = errno; ERR("Failed to add poll on fd %d (errno = %d: %s)!", fd, err, strerror(err)); ecore_fd_handler_mp_free(fdh); fdh = NULL; goto unlock; } fdh->read_active = EINA_FALSE; fdh->write_active = EINA_FALSE; fdh->error_active = EINA_FALSE; fdh->delete_me = EINA_FALSE; fdh->func = func; fdh->data = (void *)data; fdh->buf_func = buf_func; if (buf_func) fd_handlers_with_buffer = eina_list_append(fd_handlers_with_buffer, fdh); fdh->buf_data = (void *)buf_data; fd_handlers = (Ecore_Fd_Handler *) eina_inlist_append(EINA_INLIST_GET(fd_handlers), EINA_INLIST_GET(fdh)); file_fd_handlers = eina_list_append(file_fd_handlers, fdh); unlock: _ecore_unlock(); return fdh; } #ifdef _WIN32 EAPI Ecore_Win32_Handler * ecore_main_win32_handler_add(void *h, Ecore_Win32_Handle_Cb func, const void *data) { Ecore_Win32_Handler *wh; EINA_MAIN_LOOP_CHECK_RETURN_VAL(NULL); if (!h || !func) return NULL; wh = ecore_win32_handler_calloc(1); if (!wh) return NULL; ECORE_MAGIC_SET(wh, ECORE_MAGIC_WIN32_HANDLER); wh->h = (HANDLE)h; wh->delete_me = EINA_FALSE; wh->func = func; wh->data = (void *)data; win32_handlers = (Ecore_Win32_Handler *) eina_inlist_append(EINA_INLIST_GET(win32_handlers), EINA_INLIST_GET(wh)); return wh; } #else EAPI Ecore_Win32_Handler * ecore_main_win32_handler_add(void *h EINA_UNUSED, Ecore_Win32_Handle_Cb func EINA_UNUSED, const void *data EINA_UNUSED) { return NULL; } #endif EAPI void * ecore_main_fd_handler_del(Ecore_Fd_Handler *fd_handler) { void *ret = NULL; if (!fd_handler) return NULL; EINA_MAIN_LOOP_CHECK_RETURN_VAL(NULL); _ecore_lock(); if (!ECORE_MAGIC_CHECK(fd_handler, ECORE_MAGIC_FD_HANDLER)) { ECORE_MAGIC_FAIL(fd_handler, ECORE_MAGIC_FD_HANDLER, "ecore_main_fd_handler_del"); goto unlock; } ret = _ecore_main_fd_handler_del(fd_handler); unlock: _ecore_unlock(); return ret; } #ifdef _WIN32 EAPI void * ecore_main_win32_handler_del(Ecore_Win32_Handler *win32_handler) { if (!win32_handler) return NULL; EINA_MAIN_LOOP_CHECK_RETURN_VAL(NULL); if (!ECORE_MAGIC_CHECK(win32_handler, ECORE_MAGIC_WIN32_HANDLER)) { ECORE_MAGIC_FAIL(win32_handler, ECORE_MAGIC_WIN32_HANDLER, "ecore_main_win32_handler_del"); return NULL; } win32_handler->delete_me = EINA_TRUE; win32_handlers_delete_me = EINA_TRUE; return win32_handler->data; } #else EAPI void * ecore_main_win32_handler_del(Ecore_Win32_Handler *win32_handler EINA_UNUSED) { return NULL; } #endif EAPI void ecore_main_fd_handler_prepare_callback_set(Ecore_Fd_Handler *fd_handler, Ecore_Fd_Prep_Cb func, const void *data) { EINA_MAIN_LOOP_CHECK_RETURN; _ecore_lock(); if (!ECORE_MAGIC_CHECK(fd_handler, ECORE_MAGIC_FD_HANDLER)) { ECORE_MAGIC_FAIL(fd_handler, ECORE_MAGIC_FD_HANDLER, "ecore_main_fd_handler_prepare_callback_set"); goto unlock; } fd_handler->prep_func = func; fd_handler->prep_data = (void *)data; if ((!fd_handlers_with_prep) || (fd_handlers_with_prep && (!eina_list_data_find(fd_handlers_with_prep, fd_handler)))) /* FIXME: THIS WILL NOT SCALE WITH LOTS OF PREP FUNCTIONS!!! */ fd_handlers_with_prep = eina_list_append(fd_handlers_with_prep, fd_handler); unlock: _ecore_unlock(); } EAPI int ecore_main_fd_handler_fd_get(Ecore_Fd_Handler *fd_handler) { int fd = -1; EINA_MAIN_LOOP_CHECK_RETURN_VAL(-1); _ecore_lock(); if (!ECORE_MAGIC_CHECK(fd_handler, ECORE_MAGIC_FD_HANDLER)) { ECORE_MAGIC_FAIL(fd_handler, ECORE_MAGIC_FD_HANDLER, "ecore_main_fd_handler_fd_get"); goto unlock; } fd = fd_handler->fd; unlock: _ecore_unlock(); return fd; } EAPI Eina_Bool ecore_main_fd_handler_active_get(Ecore_Fd_Handler *fd_handler, Ecore_Fd_Handler_Flags flags) { int ret = EINA_FALSE; EINA_MAIN_LOOP_CHECK_RETURN_VAL(EINA_FALSE); _ecore_lock(); if (!ECORE_MAGIC_CHECK(fd_handler, ECORE_MAGIC_FD_HANDLER)) { ECORE_MAGIC_FAIL(fd_handler, ECORE_MAGIC_FD_HANDLER, "ecore_main_fd_handler_active_get"); goto unlock; } if ((flags & ECORE_FD_READ) && (fd_handler->read_active)) ret = EINA_TRUE; if ((flags & ECORE_FD_WRITE) && (fd_handler->write_active)) ret = EINA_TRUE; if ((flags & ECORE_FD_ERROR) && (fd_handler->error_active)) ret = EINA_TRUE; unlock: _ecore_unlock(); return ret; } EAPI void ecore_main_fd_handler_active_set(Ecore_Fd_Handler *fd_handler, Ecore_Fd_Handler_Flags flags) { int ret; EINA_MAIN_LOOP_CHECK_RETURN; _ecore_lock(); if (!ECORE_MAGIC_CHECK(fd_handler, ECORE_MAGIC_FD_HANDLER)) { ECORE_MAGIC_FAIL(fd_handler, ECORE_MAGIC_FD_HANDLER, "ecore_main_fd_handler_active_set"); goto unlock; } fd_handler->flags = flags; ret = _ecore_main_fdh_poll_modify(fd_handler); if (ret < 0) { ERR("Failed to mod epoll fd %d: %s!", fd_handler->fd, strerror(ret)); } unlock: _ecore_unlock(); } /** * @} */ void _ecore_main_shutdown(void) { if (in_main_loop) { ERR("\n" "*** ECORE WARNING: Calling ecore_shutdown() while still in the main loop.\n" "*** Program may crash or behave strangely now."); return; } while (fd_handlers) { Ecore_Fd_Handler *fdh; fdh = fd_handlers; fd_handlers = (Ecore_Fd_Handler *)eina_inlist_remove(EINA_INLIST_GET(fd_handlers), EINA_INLIST_GET(fdh)); ECORE_MAGIC_SET(fdh, ECORE_MAGIC_NONE); ecore_fd_handler_mp_free(fdh); } if (fd_handlers_with_buffer) fd_handlers_with_buffer = eina_list_free(fd_handlers_with_buffer); if (fd_handlers_with_prep) fd_handlers_with_prep = eina_list_free(fd_handlers_with_prep); if (fd_handlers_to_delete) fd_handlers_to_delete = eina_list_free(fd_handlers_to_delete); if (file_fd_handlers) file_fd_handlers = eina_list_free(file_fd_handlers); fd_handlers_to_call = NULL; fd_handlers_to_call_current = NULL; fd_handlers_to_delete = NULL; fd_handler_current = NULL; #ifdef _WIN32 while (win32_handlers) { Ecore_Win32_Handler *wh; wh = win32_handlers; win32_handlers = (Ecore_Win32_Handler *)eina_inlist_remove(EINA_INLIST_GET(win32_handlers), EINA_INLIST_GET(wh)); ECORE_MAGIC_SET(wh, ECORE_MAGIC_NONE); ecore_win32_handler_mp_free(wh); } win32_handlers_delete_me = EINA_FALSE; win32_handler_current = NULL; #endif } static void _ecore_main_prepare_handlers(void) { Ecore_Fd_Handler *fdh; Eina_List *l, *l2; /* call the prepare callback for all handlers with prep functions */ EINA_LIST_FOREACH_SAFE(fd_handlers_with_prep, l, l2, fdh) { if (!fdh) { fd_handlers_with_prep = eina_list_remove_list(l, fd_handlers_with_prep); continue; } if (!fdh->delete_me && fdh->prep_func) { fdh->references++; _ecore_call_prep_cb(fdh->prep_func, fdh->prep_data, fdh); fdh->references--; } else fd_handlers_with_prep = eina_list_remove_list(fd_handlers_with_prep, l); } } #ifndef USE_G_MAIN_LOOP static int _ecore_main_select(double timeout) { struct timeval tv, *t; fd_set rfds, wfds, exfds; Ecore_Fd_Handler *fdh; Eina_List *l; int max_fd; int ret; t = NULL; if ((!ECORE_FINITE(timeout)) || (timeout == 0.0)) /* finite() tests for NaN, too big, too small, and infinity. */ { tv.tv_sec = 0; tv.tv_usec = 0; t = &tv; } else if (timeout > 0.0) { int sec, usec; #ifdef FIX_HZ timeout += (0.5 / HZ); sec = (int)timeout; usec = (int)((timeout - (double)sec) * 1000000); #else sec = (int)timeout; usec = (int)((timeout - (double)sec) * 1000000); #endif tv.tv_sec = sec; tv.tv_usec = usec; t = &tv; } max_fd = 0; FD_ZERO(&rfds); FD_ZERO(&wfds); FD_ZERO(&exfds); /* call the prepare callback for all handlers */ if (fd_handlers_with_prep) _ecore_main_prepare_handlers(); if (!HAVE_EPOLL || epoll_fd < 0) { EINA_INLIST_FOREACH(fd_handlers, fdh) { if (!fdh->delete_me) { if (fdh->flags & ECORE_FD_READ) { FD_SET(fdh->fd, &rfds); if (fdh->fd > max_fd) max_fd = fdh->fd; } if (fdh->flags & ECORE_FD_WRITE) { FD_SET(fdh->fd, &wfds); if (fdh->fd > max_fd) max_fd = fdh->fd; } if (fdh->flags & ECORE_FD_ERROR) { FD_SET(fdh->fd, &exfds); if (fdh->fd > max_fd) max_fd = fdh->fd; } } } } else { /* polling on the epoll fd will wake when an fd in the epoll set is active */ max_fd = _ecore_get_epoll_fd(); FD_SET(max_fd, &rfds); } EINA_LIST_FOREACH(file_fd_handlers, l, fdh) if (!fdh->delete_me) { if (fdh->flags & ECORE_FD_READ) { FD_SET(fdh->fd, &rfds); if (fdh->fd > max_fd) max_fd = fdh->fd; } if (fdh->flags & ECORE_FD_WRITE) { FD_SET(fdh->fd, &wfds); if (fdh->fd > max_fd) max_fd = fdh->fd; } if (fdh->flags & ECORE_FD_ERROR) { FD_SET(fdh->fd, &exfds); if (fdh->fd > max_fd) max_fd = fdh->fd; } if (fdh->fd > max_fd) max_fd = fdh->fd; } if (_ecore_signal_count_get()) return -1; _ecore_unlock(); ret = main_loop_select(max_fd + 1, &rfds, &wfds, &exfds, t); _ecore_lock(); _ecore_time_loop_time = ecore_time_get(); if (ret < 0) { #ifndef _WIN32 if (errno == EINTR) return -1; else if (errno == EBADF) _ecore_main_fd_handlers_bads_rem(); #endif } if (ret > 0) { if (HAVE_EPOLL && epoll_fd >= 0) _ecore_main_fdh_epoll_mark_active(); else { EINA_INLIST_FOREACH(fd_handlers, fdh) { if (!fdh->delete_me) { if (FD_ISSET(fdh->fd, &rfds)) fdh->read_active = EINA_TRUE; if (FD_ISSET(fdh->fd, &wfds)) fdh->write_active = EINA_TRUE; if (FD_ISSET(fdh->fd, &exfds)) fdh->error_active = EINA_TRUE; _ecore_try_add_to_call_list(fdh); } } } EINA_LIST_FOREACH(file_fd_handlers, l, fdh) { if (!fdh->delete_me) { if (FD_ISSET(fdh->fd, &rfds)) fdh->read_active = EINA_TRUE; if (FD_ISSET(fdh->fd, &wfds)) fdh->write_active = EINA_TRUE; if (FD_ISSET(fdh->fd, &exfds)) fdh->error_active = EINA_TRUE; _ecore_try_add_to_call_list(fdh); } } _ecore_main_fd_handlers_cleanup(); #ifdef _WIN32 _ecore_main_win32_handlers_cleanup(); #endif return 1; } return 0; } #endif #ifndef _WIN32 # ifndef USE_G_MAIN_LOOP static void _ecore_main_fd_handlers_bads_rem(void) { Ecore_Fd_Handler *fdh; Eina_Inlist *l; int found = 0; ERR("Removing bad fds"); for (l = EINA_INLIST_GET(fd_handlers); l; ) { fdh = (Ecore_Fd_Handler *)l; l = l->next; errno = 0; if ((fcntl(fdh->fd, F_GETFD) < 0) && (errno == EBADF)) { ERR("Found bad fd at index %d", fdh->fd); if (fdh->flags & ECORE_FD_ERROR) { ERR("Fd set for error! calling user"); fdh->references++; if (!_ecore_call_fd_cb(fdh->func, fdh->data, fdh)) { ERR("Fd function err returned 0, remove it"); if (!fdh->delete_me) { fdh->delete_me = EINA_TRUE; fd_handlers_to_delete = eina_list_append(fd_handlers_to_delete, fdh); } found++; } fdh->references--; } else { ERR("Problematic fd found at %d! setting it for delete", fdh->fd); if (!fdh->delete_me) { fdh->delete_me = EINA_TRUE; fd_handlers_to_delete = eina_list_append(fd_handlers_to_delete, fdh); } found++; } } } if (found == 0) { # ifdef HAVE_GLIB ERR("No bad fd found. Maybe a foreign fd from glib?"); # else ERR("No bad fd found. EEEK!"); # endif } _ecore_main_fd_handlers_cleanup(); } # endif #endif static void _ecore_main_fd_handlers_cleanup(void) { Ecore_Fd_Handler *fdh; Eina_List *l, *l2; if (!fd_handlers_to_delete) return; EINA_LIST_FOREACH_SAFE(fd_handlers_to_delete, l, l2, fdh) { if (!fdh) { fd_handlers_to_delete = eina_list_remove_list(l, fd_handlers_to_delete); continue; } /* fdh->delete_me should be set for all fdhs at the start of the list */ if (fdh->references) continue; if (fdh->buf_func && fd_handlers_with_buffer) fd_handlers_with_buffer = eina_list_remove(fd_handlers_with_buffer, fdh); if (fdh->prep_func && fd_handlers_with_prep) fd_handlers_with_prep = eina_list_remove(fd_handlers_with_prep, fdh); fd_handlers = (Ecore_Fd_Handler *) eina_inlist_remove(EINA_INLIST_GET(fd_handlers), EINA_INLIST_GET(fdh)); if (fdh->file) file_fd_handlers = eina_list_remove(file_fd_handlers, fdh); ECORE_MAGIC_SET(fdh, ECORE_MAGIC_NONE); ecore_fd_handler_mp_free(fdh); fd_handlers_to_delete = eina_list_remove_list(fd_handlers_to_delete, l); } } #ifdef _WIN32 static void _ecore_main_win32_handlers_cleanup(void) { Ecore_Win32_Handler *wh; Eina_Inlist *l; int deleted_in_use = 0; if (!win32_handlers_delete_me) return; for (l = EINA_INLIST_GET(win32_handlers); l; ) { wh = (Ecore_Win32_Handler *)l; l = l->next; if (wh->delete_me) { if (wh->references) { deleted_in_use++; continue; } win32_handlers = (Ecore_Win32_Handler *) eina_inlist_remove(EINA_INLIST_GET(win32_handlers), EINA_INLIST_GET(wh)); ECORE_MAGIC_SET(wh, ECORE_MAGIC_NONE); ecore_win32_handler_mp_free(wh); } } if (!deleted_in_use) win32_handlers_delete_me = EINA_FALSE; } #endif static void _ecore_main_fd_handlers_call(void) { /* grab a new list */ if (!fd_handlers_to_call_current) { fd_handlers_to_call_current = fd_handlers_to_call; fd_handlers_to_call = NULL; } while (fd_handlers_to_call_current) { Ecore_Fd_Handler *fdh = fd_handlers_to_call_current; if (!fdh->delete_me) { if ((fdh->read_active) || (fdh->write_active) || (fdh->error_active)) { fdh->references++; if (!_ecore_call_fd_cb(fdh->func, fdh->data, fdh)) { if (!fdh->delete_me) { fdh->delete_me = EINA_TRUE; fd_handlers_to_delete = eina_list_append(fd_handlers_to_delete, fdh); } } fdh->references--; _ecore_fd_valid(); fdh->read_active = EINA_FALSE; fdh->write_active = EINA_FALSE; fdh->error_active = EINA_FALSE; } } /* stop when we point to ourselves */ if (fdh->next_ready == fdh) { fdh->next_ready = NULL; fd_handlers_to_call_current = NULL; break; } fd_handlers_to_call_current = fdh->next_ready; fdh->next_ready = NULL; } } static int _ecore_main_fd_handlers_buf_call(void) { Ecore_Fd_Handler *fdh; Eina_List *l, *l2; int ret; ret = 0; EINA_LIST_FOREACH_SAFE(fd_handlers_with_buffer, l, l2, fdh) { if (!fdh) { fd_handlers_with_buffer = eina_list_remove_list(l, fd_handlers_with_buffer); continue; } if ((!fdh->delete_me) && fdh->buf_func) { fdh->references++; if (_ecore_call_fd_cb(fdh->buf_func, fdh->buf_data, fdh)) { ret |= _ecore_call_fd_cb(fdh->func, fdh->data, fdh); fdh->read_active = EINA_TRUE; _ecore_try_add_to_call_list(fdh); } fdh->references--; } else fd_handlers_with_buffer = eina_list_remove_list(fd_handlers_with_buffer, l); } return ret; } #ifndef USE_G_MAIN_LOOP enum { SPIN_MORE, SPIN_RESTART, LOOP_CONTINUE }; static int _ecore_main_loop_spin_core(void) { /* as we are spinning we need to update loop time per spin */ _ecore_time_loop_time = ecore_time_get(); /* call all idlers, which returns false if no more idelrs exist */ if (!_ecore_idler_all_call()) return SPIN_RESTART; /* sneaky - drop through or if checks - the first one to succeed * drops through and returns "continue" so further ones dont run */ if ((_ecore_main_select(0.0) > 0) || (_ecore_event_exist()) || (_ecore_signal_count_get() > 0) || (do_quit)) return LOOP_CONTINUE; /* default - spin more */ return SPIN_MORE; } static int _ecore_main_loop_spin_no_timers(void) { /* if we have idlers we HAVE to spin and handle everything * in a polling way - spin in a tight polling loop */ for (;; ) { int action = _ecore_main_loop_spin_core(); if (action != SPIN_MORE) return action; /* if an idler has added a timer then we need to go through * the start of the spin cycle again to handle cases properly */ if (_ecore_timers_exists()) return SPIN_RESTART; } /* just contiune handling events etc. */ return LOOP_CONTINUE; } static int _ecore_main_loop_spin_timers(void) { /* if we have idlers we HAVE to spin and handle everything * in a polling way - spin in a tight polling loop */ for (;; ) { int action = _ecore_main_loop_spin_core(); if (action != SPIN_MORE) return action; /* if next timer expires now or in the past - stop spinning and * continue the mainloop walk as our "select" timeout has * expired now */ if (_ecore_timer_next_get() <= 0.0) return LOOP_CONTINUE; } /* just contiune handling events etc. */ return LOOP_CONTINUE; } static void _ecore_fps_marker_1(void) { if (!_ecore_fps_debug) return; t2 = ecore_time_get(); if ((t1 > 0.0) && (t2 > 0.0)) _ecore_fps_debug_runtime_add(t2 - t1); } static void _ecore_fps_marker_2(void) { if (!_ecore_fps_debug) return; t1 = ecore_time_get(); } static void _ecore_main_loop_iterate_internal(int once_only) { double next_time = -1.0; in_main_loop++; /* expire any timers */ _ecore_timer_expired_timers_call(_ecore_time_loop_time); _ecore_timer_cleanup(); /* process signals into events .... */ _ecore_signal_received_process(); /* if as a result of timers/animators or signals we have accumulated * events, then instantly handle them */ if (_ecore_event_exist()) { /* but first conceptually enter an idle state */ _ecore_idle_enterer_call(); _ecore_throttle(); /* now quickly poll to see which input fd's are active */ _ecore_main_select(0.0); /* allow newly queued timers to expire from now on */ _ecore_timer_enable_new(); /* go straight to processing the events we had queued */ goto process_all; } if (once_only) { /* in once_only mode we should quickly poll for inputs, signals * if we got any events or signals, allow new timers to process. * use bitwise or to force both conditions to be tested and * merged together */ if (_ecore_main_select(0.0) | _ecore_signal_count_get()) { _ecore_timer_enable_new(); goto process_all; } } else { /* call idle enterers ... */ _ecore_idle_enterer_call(); _ecore_throttle(); } /* if these calls caused any buffered events to appear - deal with them */ if (fd_handlers_with_buffer) _ecore_main_fd_handlers_buf_call(); /* if there are any (buffered fd handling may generate them) * then jump to processing them */ if (_ecore_event_exist()) { _ecore_main_select(0.0); _ecore_timer_enable_new(); goto process_all; } if (once_only) { /* in once_only mode enter idle here instead and then return */ _ecore_idle_enterer_call(); _ecore_throttle(); _ecore_timer_enable_new(); goto done; } _ecore_fps_marker_1(); /* start of the sleeping or looping section */ start_loop: /***************************************************************/ /* any timers re-added as a result of these are allowed to go */ _ecore_timer_enable_new(); /* if we have been asked to quit the mainloop then exit at this point */ if (do_quit) { _ecore_timer_enable_new(); goto done; } if (!_ecore_event_exist()) { /* init flags */ next_time = _ecore_timer_next_get(); /* no idlers */ if (!_ecore_idler_exist()) { /* sleep until timeout or forever (-1.0) waiting for on fds */ _ecore_main_select(next_time); } else { int action = LOOP_CONTINUE; /* no timers - spin */ if (next_time < 0) action = _ecore_main_loop_spin_no_timers(); /* timers - spin */ else action = _ecore_main_loop_spin_timers(); if (action == SPIN_RESTART) goto start_loop; } } _ecore_fps_marker_2(); /* actually wake up and deal with input, events etc. */ process_all: /***********************************************************/ /* we came out of our "wait state" so idle has exited */ if (!once_only) _ecore_idle_exiter_call(); /* call the fd handler per fd that became alive... */ /* this should read or write any data to the monitored fd and then */ /* post events onto the ecore event pipe if necessary */ _ecore_main_fd_handlers_call(); if (fd_handlers_with_buffer) _ecore_main_fd_handlers_buf_call(); /* process signals into events .... */ _ecore_signal_received_process(); /* handle events ... */ _ecore_event_call(); _ecore_main_fd_handlers_cleanup(); if (once_only) { /* if in once_only mode handle idle exiting */ _ecore_idle_enterer_call(); _ecore_throttle(); } done: /*******************************************************************/ in_main_loop--; } #endif #ifdef _WIN32 static int _ecore_main_win32_select(int nfds EINA_UNUSED, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *tv) { HANDLE objects[MAXIMUM_WAIT_OBJECTS]; int sockets[MAXIMUM_WAIT_OBJECTS]; Ecore_Fd_Handler *fdh; Ecore_Win32_Handler *wh; unsigned int objects_nbr = 0; unsigned int handles_nbr = 0; unsigned int events_nbr = 0; DWORD result; DWORD timeout; MSG msg; unsigned int i; int res; /* Create an event object per socket */ EINA_INLIST_FOREACH(fd_handlers, fdh) { WSAEVENT event; long network_event; network_event = 0; if (readfds) { if (FD_ISSET(fdh->fd, readfds)) network_event |= FD_READ; } if (writefds) { if (FD_ISSET(fdh->fd, writefds)) network_event |= FD_WRITE; } if (exceptfds) { if (FD_ISSET(fdh->fd, exceptfds)) network_event |= FD_OOB; } if (network_event) { event = WSACreateEvent(); WSAEventSelect(fdh->fd, event, network_event); objects[objects_nbr] = event; sockets[events_nbr] = fdh->fd; events_nbr++; objects_nbr++; } } /* store the HANDLEs in the objects to wait for */ EINA_INLIST_FOREACH(win32_handlers, wh) { objects[objects_nbr] = wh->h; handles_nbr++; objects_nbr++; } /* Empty the queue before waiting */ while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { TranslateMessage(&msg); DispatchMessage(&msg); } /* Wait for any message sent or posted to this queue */ /* or for one of the passed handles be set to signaled. */ if (!tv) timeout = INFINITE; else timeout = (DWORD)((tv->tv_sec * 1000.0) + (tv->tv_usec / 1000.0)); if (timeout == 0) return 0; result = MsgWaitForMultipleObjects(objects_nbr, (const HANDLE *)objects, EINA_FALSE, timeout, QS_ALLINPUT); if (readfds) FD_ZERO(readfds); if (writefds) FD_ZERO(writefds); if (exceptfds) FD_ZERO(exceptfds); /* The result tells us the type of event we have. */ if (result == WAIT_FAILED) { char *m; m = evil_last_error_get(); ERR("%s", m); free(m); res = -1; } else if (result == WAIT_TIMEOUT) { /* ERR("time out\n"); */ res = 0; } else if (result == (WAIT_OBJECT_0 + objects_nbr)) { while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { TranslateMessage(&msg); DispatchMessage(&msg); } res = 0; } else if ((result >= 0) && (result < WAIT_OBJECT_0 + events_nbr)) { WSANETWORKEVENTS network_event; WSAEnumNetworkEvents(sockets[result], objects[result], &network_event); if ((network_event.lNetworkEvents & FD_READ) && readfds) FD_SET(sockets[result], readfds); if ((network_event.lNetworkEvents & FD_WRITE) && writefds) FD_SET(sockets[result], writefds); if ((network_event.lNetworkEvents & FD_OOB) && exceptfds) FD_SET(sockets[result], exceptfds); res = 1; } else if ((result >= (WAIT_OBJECT_0 + events_nbr)) && (result < (WAIT_OBJECT_0 + objects_nbr))) { if (!win32_handler_current) { /* regular main loop, start from head */ win32_handler_current = win32_handlers; } else { /* recursive main loop, continue from where we were */ win32_handler_current = (Ecore_Win32_Handler *)EINA_INLIST_GET(win32_handler_current)->next; } while (win32_handler_current) { wh = win32_handler_current; if (objects[result - WAIT_OBJECT_0] == wh->h) { if (!wh->delete_me) { wh->references++; if (!wh->func(wh->data, wh)) { wh->delete_me = EINA_TRUE; win32_handlers_delete_me = EINA_TRUE; } wh->references--; } } if (win32_handler_current) /* may have changed in recursive main loops */ win32_handler_current = (Ecore_Win32_Handler *)EINA_INLIST_GET(win32_handler_current)->next; } res = 1; } else { ERR("unknown result...\n"); res = -1; } /* Remove event objects again */ for (i = 0; i < events_nbr; i++) WSACloseEvent(objects[i]); return res; } #endif