reallocIfNeeded() — netty Function Reference

Source Code

transport-classes-kqueue/src/main/java/io/netty/channel/kqueue/NativeLongArray.java lines 88–106

    private void reallocIfNeeded() {
        if (size == capacity) {
            // Double the capacity while it is "sufficiently small", and otherwise increase by 50%.
            int newLength = capacity <= 65536 ? capacity << 1 : capacity + capacity >> 1;
            int newCapacity = calculateBufferCapacity(newLength);
            CleanableDirectBuffer buffer = Buffer.allocateDirectBufferWithNativeOrder(newCapacity);
            // Copy over the old content of the memory and reset the position as we always act on the buffer as if
            // the position was never increased.
            memory.position(0).limit(size);
            buffer.buffer().put(memory);
            buffer.buffer().position(0);

            memoryCleanable.clean();
            memoryCleanable = buffer;
            memory = buffer.buffer();
            memoryAddress = Buffer.memoryAddress(memory);
            capacity = newLength;
        }
    }