#include <hwo/events.h>
#include <sys/atomic.h>
#include <hwo/systick.h>
#include <hwo/threads.h>

#include <stdlib.h>

/*! \brief .
 *
 */
EVENT*	event_wait(uint32_t maxwait)
{
	list_t *l;
	EVENT* e;
	
	event_cleanup();
	
	do
	{
		ATOMIC
		
		l = list_fetch_first( &_ev_head );
		if (l) {
			e = list_entry(l,EVENT,list);
			if (e->flags & EV_FLAG_AUTOFREE)
				_ev_cleanup = e;
			
			if (e->event == EV_SYS_TIMER){
				if (e->ptr){
					void (*h)(void) = e->ptr;
					h();
					return NULL;
				};
			};
			return e;
		};
		
		if (!maxwait)
			return NULL;
		
		eventWaiter = current_thread();
		wait_ms( maxwait );
		eventWaiter = NULL;
	} while (1);
};