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Diffstat (limited to 'sensors/common/utils/EventMessageQueueWrapper.h')
| -rw-r--r-- | sensors/common/utils/EventMessageQueueWrapper.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/sensors/common/utils/EventMessageQueueWrapper.h b/sensors/common/utils/EventMessageQueueWrapper.h new file mode 100644 index 0000000000..bf3261ffbc --- /dev/null +++ b/sensors/common/utils/EventMessageQueueWrapper.h @@ -0,0 +1,109 @@ +/* + * Copyright (C) 2020 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 ANDROID_HARDWARE_SENSORS_V2_1_EVENTMESSAGEQUEUEWRAPPER_H +#define ANDROID_HARDWARE_SENSORS_V2_1_EVENTMESSAGEQUEUEWRAPPER_H + +#include "convertV2_1.h" + +#include <android/hardware/sensors/2.1/types.h> +#include <fmq/MessageQueue.h> +#include <hidl/MQDescriptor.h> +#include <hidl/Status.h> +#include <log/log.h> + +#include <atomic> + +namespace android { +namespace hardware { +namespace sensors { +namespace V2_1 { +namespace implementation { + +class EventMessageQueueWrapperBase : public RefBase { + public: + virtual ~EventMessageQueueWrapperBase() {} + + virtual std::atomic<uint32_t>* getEventFlagWord() = 0; + virtual size_t availableToRead() = 0; + virtual bool read(V2_1::Event* events, size_t numToRead) = 0; + virtual bool write(const std::vector<V2_1::Event>& events) = 0; +}; + +class EventMessageQueueWrapperV1_0 : public EventMessageQueueWrapperBase { + public: + using EventMessageQueue = MessageQueue<V1_0::Event, kSynchronizedReadWrite>; + + EventMessageQueueWrapperV1_0(std::unique_ptr<EventMessageQueue>& queue) + : mQueue(std::move(queue)) {} + + const ::android::hardware::MQDescriptorSync<V1_0::Event>* getDesc() { + return mQueue->getDesc(); + } + + virtual std::atomic<uint32_t>* getEventFlagWord() override { + return mQueue->getEventFlagWord(); + } + + virtual size_t availableToRead() override { return mQueue->availableToRead(); } + + virtual bool read(V2_1::Event* events, size_t numToRead) override { + return mQueue->read(reinterpret_cast<V1_0::Event*>(events), numToRead); + } + + virtual bool write(const std::vector<V2_1::Event>& events) override { + const std::vector<V1_0::Event>& oldEvents = convertToOldEvents(events); + return mQueue->write(oldEvents.data(), oldEvents.size()); + } + + private: + std::unique_ptr<EventMessageQueue> mQueue; +}; + +class EventMessageQueueWrapperV2_1 : public EventMessageQueueWrapperBase { + public: + using EventMessageQueue = MessageQueue<V2_1::Event, kSynchronizedReadWrite>; + + EventMessageQueueWrapperV2_1(std::unique_ptr<EventMessageQueue>& queue) + : mQueue(std::move(queue)) {} + + const ::android::hardware::MQDescriptorSync<V2_1::Event>* getDesc() { + return mQueue->getDesc(); + } + + std::atomic<uint32_t>* getEventFlagWord() override { return mQueue->getEventFlagWord(); } + + virtual size_t availableToRead() override { return mQueue->availableToRead(); } + + virtual bool read(V2_1::Event* events, size_t numToRead) override { + return mQueue->read(events, numToRead); + } + + bool write(const std::vector<V2_1::Event>& events) override { + return mQueue->write(events.data(), events.size()); + } + + private: + std::unique_ptr<EventMessageQueue> mQueue; +}; + +} // namespace implementation +} // namespace V2_1 +} // namespace sensors +} // namespace hardware +} // namespace android + +#endif // ANDROID_HARDWARE_SENSORS_V2_1_EVENTMESSAGEQUEUEWRAPPER_H
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