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