/*
 * 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_api/chre/re.h"
#include "chre/core/event_loop.h"
#include "chre/core/event_loop_manager.h"
#include "chre/platform/assert.h"
#include "chre/platform/memory.h"
#include "chre/platform/system_time.h"
#include "chre/util/macros.h"

using chre::EventLoopManager;
using chre::EventLoopManagerSingleton;

DLL_EXPORT uint64_t chreGetTime() {
  return chre::SystemTime::getMonotonicTime().toRawNanoseconds();
}

DLL_EXPORT int64_t chreGetEstimatedHostTimeOffset() {
  return chre::SystemTime::getEstimatedHostTimeOffset();
}

DLL_EXPORT uint64_t chreGetAppId(void) {
  chre::Nanoapp *nanoapp = EventLoopManager::validateChreApiCall(__func__);
  return nanoapp->getAppId();
}

DLL_EXPORT uint32_t chreGetInstanceId(void) {
  chre::Nanoapp *nanoapp = EventLoopManager::validateChreApiCall(__func__);
  return nanoapp->getInstanceId();
}

DLL_EXPORT uint32_t chreTimerSet(uint64_t duration, const void *cookie,
                                 bool oneShot) {
  chre::Nanoapp *nanoapp = EventLoopManager::validateChreApiCall(__func__);
  return EventLoopManagerSingleton::get()->getEventLoop().getTimerPool()
      .setTimer(nanoapp, chre::Nanoseconds(duration), cookie, oneShot);
}

DLL_EXPORT bool chreTimerCancel(uint32_t timerId) {
  chre::Nanoapp *nanoapp = EventLoopManager::validateChreApiCall(__func__);
  return EventLoopManagerSingleton::get()->getEventLoop().getTimerPool()
      .cancelTimer(nanoapp, timerId);
}

DLL_EXPORT void *chreHeapAlloc(uint32_t bytes) {
  chre::Nanoapp *nanoapp = EventLoopManager::validateChreApiCall(__func__);
  return chre::EventLoopManagerSingleton::get()->getMemoryManager().
      nanoappAlloc(nanoapp, bytes);
}

DLL_EXPORT void chreHeapFree(void *ptr) {
  chre::Nanoapp *nanoapp = EventLoopManager::validateChreApiCall(__func__);
  chre::EventLoopManagerSingleton::get()->getMemoryManager().
      nanoappFree(nanoapp, ptr);
}