Method write

framework/data_source/cache/slice.cpp:48–68

    }

    int slice::write(const void *buffer, int size)
    {
        if (mBufferPtr == nullptr) {
            mAlloc = true;
            mBufferPtr = new uint8_t[mCapacity];
        }

        if (size == 0) {
            return 0;
        }

        int writeSize = (int) MIN(size, mCapacity - mSize);

        if (writeSize == 0) {
            return -ENOSPC;
        }

        memcpy(mBufferPtr + mSize, buffer, static_cast<size_t>(writeSize));
        mSize += writeSize;
        return writeSize;
    }

    int slice::readAt(void *buffer, int size, uint64_t offset)
    {