core: Add a polling example
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#define EFL_EO_API_SUPPORT 1
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#define EFL_BETA_API_SUPPORT 1
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#include <stdio.h>
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#include <Eina.h>
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#include <Efl_Core.h>
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/*
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* Efl Core Poll examples.
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*
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* This example sets up poll callbacks for LOW, MEDIUM and HIGH frequency events.
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* We run for 30 seconds and print to stdout to show when each is called.
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* Depending on your system this may not include any LOW frequency polls.
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*/
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Efl_Loop_Timer *_timer;
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// the poll callback for low frequency events
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static void
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_poll_low_cb(void *data EINA_UNUSED, const Efl_Event *event EINA_UNUSED)
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{
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printf("L");
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}
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// the poll callback for medium frequency events
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static void
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_poll_med_cb(void *data EINA_UNUSED, const Efl_Event *event EINA_UNUSED)
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{
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printf("M");
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}
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// the poll callback for high frequency events
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static void
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_poll_high_cb(void *data EINA_UNUSED, const Efl_Event *event EINA_UNUSED)
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{
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printf(".");
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}
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// Our timer callback ticks at the specified interval to interrupt the polling
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static void
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_timer_cb(void *data EINA_UNUSED, const Efl_Event *event EINA_UNUSED)
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{
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printf("\nTIMER: timer callback called, exiting.\n");
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efl_del(_timer);
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efl_exit(0);
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}
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EAPI_MAIN void
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efl_main(void *data EINA_UNUSED, const Efl_Event *ev EINA_UNUSED)
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{
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Eo *loop = ev->object;
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setbuf(stdout, NULL);
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efl_event_callback_add(loop, EFL_LOOP_EVENT_POLL_LOW, _poll_low_cb, NULL);
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efl_event_callback_add(loop, EFL_LOOP_EVENT_POLL_MEDIUM, _poll_med_cb, NULL);
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efl_event_callback_add(loop, EFL_LOOP_EVENT_POLL_HIGH, _poll_high_cb, NULL);
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_timer = efl_add(EFL_LOOP_TIMER_CLASS, loop,
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efl_loop_timer_interval_set(efl_added, 30));
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efl_event_callback_add(_timer, EFL_LOOP_TIMER_EVENT_TICK, _timer_cb, NULL);
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}
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EFL_MAIN()
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@ -21,3 +21,10 @@ executable('efl_reference_core_idler',
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install : true
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)
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executable('efl_reference_core_poll',
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files(['core_poll.c']),
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dependencies : deps,
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include_directories : inc,
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install : true
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)
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