#include "select.h"
#include "../base.h"
#include "../errno.h"
#include <stddef.h>
#include <linux-syscalls/linux.h>
#include "../bsdthread/cancelable.h"

long sys_select(int nfds, void* rfds, void* wfds, void* efds, struct bsd_timeval* timeout)
{
	CANCELATION_POINT();
	return sys_select_nocancel(nfds, rfds, wfds, efds, timeout);
}

long sys_select_nocancel(int nfds, void* rfds, void* wfds, void* efds, struct bsd_timeval* timeout)
{
	#if defined(__NR__newselect) || defined(__NR_select)
		int ret;
		struct linux_timeval ltv;

		if (timeout != NULL)
		{
			ltv.tv_sec = timeout->tv_sec;
			ltv.tv_usec = timeout->tv_usec;
		}

		#if defined(__NR__newselect)
			ret = LINUX_SYSCALL(__NR__newselect, nfds, rfds, wfds, efds,
					(timeout != NULL) ? &ltv : NULL);
		#else
			ret = LINUX_SYSCALL(__NR_select, nfds, rfds, wfds, efds,
					(timeout != NULL) ? &ltv : NULL);
		#endif
		if (ret < 0)
			ret = errno_linux_to_bsd(ret);

		return ret;
	#else
		return sys_pselect_nocancel(nfds, rfds, wfds, efds, timeout, NULL);
	#endif
}