90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <math.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/time.h>
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#include "Ecore.h"
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#include "ecore_private.h"
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#include "ecore_main_common.h"
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#ifdef HAVE_SYS_TIMERFD_H
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static Eo *realtime_obj = NULL;
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static void
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_cb_read(void *data EINA_UNUSED, const Efl_Event *event)
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{
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Eo *loop = efl_provider_find(event->object, EFL_LOOP_CLASS);
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int fd = efl_loop_handler_fd_get(event->object);
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char buf[8];
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if (read(fd, buf, sizeof(buf)) >= 0) return;
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DBG("system clock changed");
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// XXX: ecore event needs to be eo loop api's
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ecore_event_add(ECORE_EVENT_SYSTEM_TIMEDATE_CHANGED, NULL, NULL, NULL);
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_ecore_main_timechanges_stop(loop);
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_ecore_main_timechanges_start(loop);
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}
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static void
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_cb_del(void *data EINA_UNUSED, const Efl_Event *event)
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{
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int fd = efl_loop_handler_fd_get(event->object);
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if (event->object == realtime_obj) realtime_obj = NULL;
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close(fd);
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}
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EFL_CALLBACKS_ARRAY_DEFINE(_event_watch,
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{ EFL_LOOP_HANDLER_EVENT_READ, _cb_read },
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{ EFL_EVENT_DEL, _cb_del });
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#endif
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void
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_ecore_main_timechanges_start(Eo *obj)
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{
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#ifdef HAVE_SYS_TIMERFD_H
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struct itimerspec its;
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int fd;
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if (realtime_obj) return;
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fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
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if (fd < 0) return;
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memset(&its, 0, sizeof(its));
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its.it_value.tv_sec = TIME_T_MAX; // end of time - 0xf
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if (timerfd_settime(fd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET,
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&its, NULL) < 0)
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{
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WRN("Couldn't arm timerfd to detect clock changes: %s", strerror(errno));
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close(fd);
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return;
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}
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realtime_obj =
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efl_add(EFL_LOOP_HANDLER_CLASS, obj,
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efl_loop_handler_fd_set(efl_added, fd),
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efl_loop_handler_active_set(efl_added, EFL_LOOP_HANDLER_FLAGS_READ),
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efl_event_callback_array_add(efl_added, _event_watch(), NULL));
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#endif
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}
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void
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_ecore_main_timechanges_stop(Eo *obj EINA_UNUSED)
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{
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#ifdef HAVE_SYS_TIMERFD_H
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Eo *o = realtime_obj;
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if (!o) return;
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realtime_obj = NULL;
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efl_del(o);
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#endif
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}
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