03bc75f298
At the layer right under HIDL impl, where the callback objs are received from HIDL and used by HAL layer, there is race condition volnerability which could yield using a incompletely copied sp obj. Added mutex protection. Change-Id: I611db590d1fadbe43c74db71a1ea906dbe067c6d CRs-Fixed: 2144976
75 lines
2.9 KiB
C++
75 lines
2.9 KiB
C++
/* Copyright (c) 2017, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation, nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef MEASUREMENT_API_CLINET_H
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#define MEASUREMENT_API_CLINET_H
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#include <mutex>
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#include <android/hardware/gnss/1.0/IGnssMeasurement.h>
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#include <android/hardware/gnss/1.0/IGnssMeasurementCallback.h>
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#include <LocationAPIClientBase.h>
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#include <hidl/Status.h>
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namespace android {
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namespace hardware {
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namespace gnss {
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namespace V1_0 {
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namespace implementation {
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using ::android::hardware::gnss::V1_0::IGnssMeasurement;
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using ::android::sp;
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class MeasurementAPIClient : public LocationAPIClientBase
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{
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public:
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MeasurementAPIClient();
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virtual ~MeasurementAPIClient();
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MeasurementAPIClient(const MeasurementAPIClient&) = delete;
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MeasurementAPIClient& operator=(const MeasurementAPIClient&) = delete;
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// for GpsMeasurementInterface
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Return<IGnssMeasurement::GnssMeasurementStatus> measurementSetCallback(
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const sp<IGnssMeasurementCallback>& callback);
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void measurementClose();
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// callbacks we are interested in
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void onGnssMeasurementsCb(GnssMeasurementsNotification gnssMeasurementsNotification) final;
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private:
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sp<IGnssMeasurementCallback> mGnssMeasurementCbIface;
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std::mutex mMutex;
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bool mTracking;
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};
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} // namespace implementation
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} // namespace V1_0
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} // namespace gnss
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} // namespace hardware
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} // namespace android
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#endif // MEASUREMENT_API_CLINET_H
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