| /* |
| * 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. |
| */ |
| |
| #ifndef CHRE_CORE_EVENT_H_ |
| #define CHRE_CORE_EVENT_H_ |
| |
| #include "chre_api/chre/event.h" |
| #include "chre/platform/assert.h" |
| #include "chre/platform/log.h" |
| #include "chre/util/non_copyable.h" |
| |
| #include <cstdint> |
| |
| namespace chre { |
| |
| // TODO: put these in a more common place |
| constexpr uint32_t kSystemInstanceId = 0; |
| constexpr uint32_t kBroadcastInstanceId = UINT32_MAX; |
| |
| // Can be used in the context of a specific Nanoapp's instance ID |
| constexpr uint32_t kInvalidInstanceId = kBroadcastInstanceId; |
| |
| class Event : public NonCopyable { |
| public: |
| Event(uint16_t eventType_, |
| void *eventData_, |
| chreEventCompleteFunction *freeCallback_, |
| uint32_t senderInstanceId_ = kSystemInstanceId, |
| uint32_t targetInstanceId_ = kBroadcastInstanceId) |
| : eventType(eventType_), |
| eventData(eventData_), |
| freeCallback(freeCallback_), |
| senderInstanceId(senderInstanceId_), |
| targetInstanceId(targetInstanceId_) {} |
| |
| void incrementRefCount() { |
| mRefCount++; |
| CHRE_ASSERT(mRefCount != 0); |
| } |
| |
| void decrementRefCount() { |
| CHRE_ASSERT(mRefCount > 0); |
| mRefCount--; |
| } |
| |
| bool isUnreferenced() { |
| return (mRefCount == 0); |
| } |
| |
| const uint16_t eventType; |
| void * const eventData; |
| chreEventCompleteFunction * const freeCallback; |
| const uint32_t senderInstanceId; |
| const uint32_t targetInstanceId; |
| |
| private: |
| size_t mRefCount = 0; |
| }; |
| |
| } |
| |
| #endif // CHRE_CORE_EVENT_H_ |