Method resetSize

app/src/main/cpp/utils/SharedBuffer.cpp:54–96

    }

    [[nodiscard]] bool resetSize(size_t size, bool keepContent) noexcept {
        std::scoped_lock _(mMutex);
        if (size == 0) {
            mSize = 0;
            return mBuffer != nullptr;
        }
        if (mBuffer != nullptr) {
            if (size * 2 < mActualSize || size > mActualSize) {
                size_t newSize = int(float(size) / LOAD_FACTOR);
                void *newBuffer = malloc(newSize);
                if (newBuffer == nullptr) {
                    return false;
                }
                if (keepContent) {
                    size_t cpSize = std::min(size, mSize);
                    memcpy(newBuffer, mBuffer, cpSize);
                    size_t left = newSize - cpSize;
                    if (left > 0) {
                        memset((char *) (newBuffer) + cpSize, 0, left);
                    }
                } else {
                    memset(newBuffer, 0, newSize);
                }
                // fill the old buffer with 0xCC before free for debugging purpose
                memset(mBuffer, 0xCC, mActualSize);
                free(mBuffer);
                mBuffer = newBuffer;
                mActualSize = newSize;
                mSize = size;
            } else {
                mSize = size;
            }
            return true;
        } else {
            mBuffer = malloc(size);
            if (mBuffer == nullptr) {
                return false;
            }
            memset(mBuffer, 0, size);
            mSize = mActualSize = size;
        }
        return true;
    }
};

SharedBuffer::SharedBuffer() = default;