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Commit 9af82100 authored by Jeongik Cha's avatar Jeongik Cha
Browse files

Support ParcelFileDescriptor[] in libbinder_ndk 

Bug: 144114628
Test: atest CtsNdkBinderTestCases
Change-Id: Icaadc7767bae237b5d72fd922e87a50efaeac42f
parent 6cea68f9

libs/binder/ndk/include_ndk/android/binder_parcel_utils.h

+36 −0
Original line number Diff line number Diff line
@@ -440,6 +440,42 @@ binder_status_t AParcel_readStdVectorParcelableElement(const AParcel* parcel, vo 
    return vector->at(index).readFromParcel(parcel);

}



/**

 * Writes a ScopedFileDescriptor object inside a std::vector<ScopedFileDescriptor> at index 'index'

 * to 'parcel'.

 */

template <>

inline binder_status_t AParcel_writeStdVectorParcelableElement<ScopedFileDescriptor>(

        AParcel* parcel, const void* vectorData, size_t index) {

    const std::vector<ScopedFileDescriptor>* vector =

            static_cast<const std::vector<ScopedFileDescriptor>*>(vectorData);

    int writeFd = vector->at(index).get();

    if (writeFd < 0) {

        return STATUS_UNEXPECTED_NULL;

    }

    return AParcel_writeParcelFileDescriptor(parcel, writeFd);

}



/**

 * Reads a ScopedFileDescriptor object inside a std::vector<ScopedFileDescriptor> at index 'index'

 * from 'parcel'.

 */

template <>

inline binder_status_t AParcel_readStdVectorParcelableElement<ScopedFileDescriptor>(

        const AParcel* parcel, void* vectorData, size_t index) {

    std::vector<ScopedFileDescriptor>* vector =

            static_cast<std::vector<ScopedFileDescriptor>*>(vectorData);

    int readFd;

    binder_status_t status = AParcel_readParcelFileDescriptor(parcel, &readFd);

    if (status == STATUS_OK) {

        if (readFd < 0) {

            return STATUS_UNEXPECTED_NULL;

        }

        vector->at(index).set(readFd);

    }

    return status;

}



/**

 * Convenience API for writing a std::vector<P>

 */