/// <summary>
/// Initializes the link object.
/// </summary>
/// <param name="type">A prefix to the link name for debugging purposes.</param>
/// <param name="session">The session in which the link is created.</param>
/// <param name="linkSettings">The link settings.</param>
protected AmqpLink(string type, AmqpSession session, AmqpLinkSettings linkSettings)
: base(type)
{
this.references = 1;
this.syncRoot = new object();
this.settings = linkSettings ?? throw new ArgumentNullException(nameof(linkSettings));
this.linkCredit = this.settings.TotalLinkCredit;
Source source = (Source)this.settings.Source;
if (source != null)
{
this.defaultOutcome = source.DefaultOutcome;
}
if (this.defaultOutcome == null)
{
this.defaultOutcome = AmqpConstants.ReleasedOutcome;
}
this.unsettledMap = new Dictionary <ArraySegment <byte>, Delivery>(ByteArrayComparer.Instance);
if (session != null)
{
this.AttachTo(session);
}
if (!linkSettings.IsReceiver())
{
this.inflightDeliveries = new SerializedWorker <Delivery>(this);
}
}
/// <summary>
/// Initializes the object.
/// </summary>
/// <param name="session">The session where the link is created.</param>
/// <param name="settings">The link settings.</param>
public SendingAmqpLink(AmqpSession session, AmqpLinkSettings settings)
: base("sender", session, settings)
{
// TODO: Add capability negotiation logic for BatchedMessageFormat to this.Settings
this.pendingDeliveries = new SerializedWorker <AmqpMessage>(this);
this.inflightSends = new WorkCollection <ArraySegment <byte>, SendAsyncResult, Outcome>(ByteArrayComparer.Instance);
this.lastFlowRequestTime = DateTime.UtcNow;
}
public void ExtractFrameBuffers(ByteBuffer buffer, SerializedWorker <ByteBuffer> bufferHandler)
{
if (this.currentFrameBuffer != null)
{
int sizeToWrite = Math.Min(this.currentFrameBuffer.Size, buffer.Length);
AmqpBitConverter.WriteBytes(this.currentFrameBuffer, buffer.Buffer, buffer.Offset, sizeToWrite);
buffer.Complete(sizeToWrite);
if (this.currentFrameBuffer.Size == 0)
{
ByteBuffer frameBuffer = this.currentFrameBuffer;
this.currentFrameBuffer = null;
bufferHandler.DoWork(frameBuffer);
}
}
while (buffer.Length >= AmqpCodec.MinimumFrameDecodeSize)
{
int frameSize = AmqpCodec.GetFrameSize(buffer);
if (frameSize < AmqpCodec.MinimumFrameDecodeSize || frameSize > this.maxFrameSize)
{
throw new AmqpException(AmqpErrorCode.FramingError, CommonResources.GetString(CommonResources.InvalidFrameSize, frameSize, this.maxFrameSize));
}
int sizeToWrite = Math.Min(frameSize, buffer.Length);
this.currentFrameBuffer = new ByteBuffer(frameSize, false);
AmqpBitConverter.WriteBytes(this.currentFrameBuffer, buffer.Buffer, buffer.Offset, sizeToWrite);
buffer.Complete(sizeToWrite);
if (frameSize == sizeToWrite)
{
ByteBuffer frameBuffer = this.currentFrameBuffer;
this.currentFrameBuffer = null;
bufferHandler.DoWork(frameBuffer);
}
else
{
break;
}
}
}
int references; // make sure no frames are sent after close
protected AmqpLink(AmqpSession session, AmqpLinkSettings linkSettings)
: this("link", session, linkSettings)
{
this.inflightDeliveries = new SerializedWorker <Delivery>(this);
}