#include <stdexcept> // std::domain_error()
#include <cerrno>	// errno
#include "igs_resource_msg_from_err.h"
#include "igs_resource_sleep.h"
/*
1second=1,000milli_seconds=1,000,000micro_seconds=1,000,000,000nano_seconds
tv_sec(seconds)が負か、tv_nsec(nano_seconds)が0〜999,999,999範囲外、はエラー
*/
void igs::resource::sleep_sn(const time_t seconds, const long nano_seconds)
{
	struct timespec req;
	req.tv_sec = seconds;
	req.tv_nsec = nano_seconds;
	struct timespec rem;
	rem.tv_sec = 0;
	rem.tv_nsec = 0;
	if (::nanosleep(&req, &rem) < 0) {
		throw std::domain_error(igs_resource_msg_from_err(
			TEXT("nanosleep(-)"), errno));
	}
}
/*
windows ::Sleep()の仕様にあわせるためだけの関数
1second = 1,000milli_seconds(ミリ秒)
*/
void igs::resource::sleep_m(const DWORD milli_seconds)
{
	const time_t seconds = milli_seconds / 1000;
	const long nano_seconds = (milli_seconds % 1000) * 1000000;
	//std::cout << "milli_seconds=" << milli_seconds << std::endl;
	//std::cout << "      seconds=" << seconds << std::endl;
	//std::cout << " nano_seconds=" << nano_seconds << std::endl;
	igs::resource::sleep_sn(seconds, nano_seconds);
}