/*=========================================================================
 * Copyright (c) 2010-2014 Pivotal Software, Inc. All Rights Reserved.
 * This product is protected by U.S. and international copyright
 * and intellectual property laws. Pivotal products are covered by
 * one or more patents listed at http://www.pivotal.io/patents.
 *=========================================================================
 */

#include "NanoTimer.hpp"
#include <ace/OS.h>
#include <ace/Time_Value.h>
#include <ace/High_Res_Timer.h>

// @TODO: Make these actually nano granularity when possible.

namespace gemfire {

int64_t NanoTimer::now( )
{
  ACE_Time_Value now = ACE_High_Res_Timer::gettimeofday_hr();
  return 
    ( now.sec() * 1000000000ll ) /* convert secs to nanosecs */
  + ( now.usec() * 1000ll );        /* convert microsecs to nanosecs */
}

void NanoTimer::sleep( uint32_t nanos )
{
  timespec spec;
  spec.tv_nsec = nanos;
  timespec remaining;
  ACE_OS::nanosleep( &spec, &remaining );
}

void millisleep( uint32_t millis )
{
  time_t secs = millis / 1000;
  suseconds_t usecs = ( millis % 1000 ) * 1000;
  ACE_Time_Value duration( secs, usecs );
  ACE_OS::sleep( duration );
}

}