/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "chre/platform/system_time.h"

#include <cerrno>
#include <cstring>
#include <ctime>

#include "chre/platform/assert.h"
#include "chre/platform/log.h"

namespace chre {

Nanoseconds SystemTime::getMonotonicTime() {
  struct timespec timeNow;
  if (clock_gettime(CLOCK_MONOTONIC, &timeNow)) {
    CHRE_ASSERT_LOG(false, "Failed to obtain time with error: %s",
                    strerror(errno));
    return Nanoseconds(UINT64_MAX);
  }

  return Seconds(timeNow.tv_sec) + Nanoseconds(timeNow.tv_nsec);
}

}  // namespace chre