/*
 *
 * Copyright 2014, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include "src/cpp/util/time.h"

#include <grpc/support/time.h>

using std::chrono::duration_cast;
using std::chrono::nanoseconds;
using std::chrono::seconds;
using std::chrono::system_clock;

namespace grpc {

void AbsoluteDeadlineTimepoint2Timespec(const system_clock::time_point& from,
                                        gpr_timespec* to) {
  system_clock::duration deadline = from.time_since_epoch();
  seconds secs = duration_cast<seconds>(deadline);
  nanoseconds nsecs = duration_cast<nanoseconds>(deadline - secs);
  to->tv_sec = secs.count();
  to->tv_nsec = nsecs.count();
}

system_clock::time_point AbsoluteDeadlineTimespec2Timepoint(gpr_timespec t) {
  system_clock::time_point tp;
  tp += seconds(t.tv_sec);
  tp += nanoseconds(t.tv_nsec);
  return tp;
}

}  // namespace grpc