/// <summary>
/// Compact the buffer to reclaim unused space above the limit.
/// </summary>
/// <returns> the builder for fluent API usage. </returns>
public BufferBuilder Compact()
{
_capacity = Math.Max(INITIAL_CAPACITY, BitUtil.FindNextPositivePowerOfTwo(_limit));
_buffer = CopyOf(_buffer, _capacity);
_mutableDirectBuffer.Wrap(_buffer);
return(this);
}
public unsafe void Send(ReadOnlySpan <byte> message)
{
if (!IsConnected)
throw new InvalidOperationException("Trying to send when not connected");
fixed(byte *ptr = message)
{
_buffer.Wrap(ptr, message.Length);
var spinWait = new SpinWait();
while (true)
{
var errorCode = _publication.Offer(_buffer, 0, message.Length, _dataReservedValueSupplier);
if (errorCode >= 0)
{
break;
}
var result = Utils.InterpretPublicationOfferResult(errorCode);
if (result == AeronResultType.Success)
{
break;
}
if (result == AeronResultType.ShouldRetry)
{
spinWait.SpinOnce();
continue;
}
_client.SessionDisconnected(this);
return;
}
_buffer.Release();
}
}
/// <summary>
/// Pre touch memory pages so they are faulted in to be available before access.
/// </summary>
public void PreTouch()
{
const int value = 0;
int pageSize = LogBufferDescriptor.PageSize(_logMetaDataBuffer);
UnsafeBuffer atomicBuffer = new UnsafeBuffer();
foreach (MappedByteBuffer buffer in _mappedByteBuffers)
{
atomicBuffer.Wrap(buffer.Pointer, 0, (int)buffer.Capacity);
for (int i = 0, length = atomicBuffer.Capacity; i < length; i += pageSize)
{
atomicBuffer.CompareAndSetInt(i, value, value);
}
}
}
/// <summary>
/// Wrap a region of an underlying log buffer so it can represent a claimed space for use by a publisher.
/// </summary>
/// <param name="buffer"> to be wrapped. </param>
/// <param name="offset"> at which the claimed region begins including space for the header. </param>
/// <param name="length"> length of the underlying claimed region including space for the header. </param>
public void Wrap(IAtomicBuffer buffer, int offset, int length)
{
_buffer.Wrap(buffer, offset, length);
}
public static unsafe void Release(this UnsafeBuffer buffer) => buffer.Wrap((byte *)0, 0);
/// <summary>
/// Wrap a region of an underlying log buffer so can can represent a claimed space for use by a publisher.
/// </summary>
/// <param name="buffer"> to be wrapped. </param>
/// <param name="offset"> at which the claimed region begins including space for the header. </param>
/// <param name="length"> length of the underlying claimed region including space for the header. </param>
public void Wrap(UnsafeBuffer buffer, int offset, int length)
{
_buffer.Wrap(buffer, offset, length);
}
private void Resize(int newCapacity)
{
_buffer.Wrap(CopyOf(_buffer.ByteArray, newCapacity));
}
