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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ANDROID_GUI_SENSOR_CHANNEL_H
     18 #define ANDROID_GUI_SENSOR_CHANNEL_H
     19 
     20 #include <stdint.h>
     21 #include <sys/types.h>
     22 
     23 #include <utils/Errors.h>
     24 #include <utils/RefBase.h>
     25 
     26 
     27 namespace android {
     28 // ----------------------------------------------------------------------------
     29 class Parcel;
     30 
     31 class SensorChannel : public RefBase
     32 {
     33 public:
     34 
     35             SensorChannel();
     36             SensorChannel(const Parcel& data);
     37     virtual ~SensorChannel();
     38 
     39     int getFd() const;
     40     ssize_t write(void const* vaddr, size_t size);
     41     ssize_t read(void* vaddr, size_t size);
     42 
     43     status_t writeToParcel(Parcel* reply) const;
     44 
     45 private:
     46     int mSendFd;
     47     mutable int mReceiveFd;
     48 };
     49 
     50 // ----------------------------------------------------------------------------
     51 }; // namespace android
     52 
     53 #endif // ANDROID_GUI_SENSOR_CHANNEL_H
     54