#include <stdexcept> // std::domain_error()</stdexcept>

#include <cerrno>	// errno</cerrno>

#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);

}