Method Read

framework/data_source/ContentDataSource.cpp:79–98

}

int ContentDataSource::Read(void *buf, size_t nbyte) {
    JniEnv env{};
    JNIEnv *pEnv = env.getEnv();
    if (pEnv == nullptr) {
        return -EINVAL;
    }

    jbyteArray buffer = pEnv->NewByteArray((jsize) nbyte);
    int readSize = (int) pEnv->CallIntMethod(mJContentDataSource, jContentDataSource_read, buffer);
    if (readSize <= 0) {
        return readSize;
    }
    jboolean isCopy = false;
    jbyte *jBytes = pEnv->GetByteArrayElements(buffer, &isCopy);
    memcpy(buf, jBytes, readSize);

    pEnv->ReleaseByteArrayElements(buffer, jBytes, 0);
    pEnv->DeleteLocalRef(buffer);
    return readSize;
}
void ContentDataSource::Interrupt(bool interrupt) {
    IDataSource::Interrupt(interrupt);
}