void WriteContentHeaderFrame(ref CustomBufferWriter <PipeWriter> writer, MessageProperties properties, ulong length)
{
var payloadSizeHeader = writer.WriteFrameHeader(FrameType.ContentHeader, channelNumber);
writer.Commit();
var bytesWrittenBefore = (uint)writer.BytesCommitted;
writer.Write(ClassId.Basic);
writer.Write(Reserved);
writer.Write(Reserved);
writer.Write(length);
writer.WriteBasicProperties(properties);
writer.Commit();
BinaryPrimitives.WriteUInt32BigEndian(payloadSizeHeader, ((uint)writer.BytesCommitted - bytesWrittenBefore));
writer.Write(FrameEnd);
}
public Task Publish(string exchange, string routingKey, bool mandatory, MessageProperties properties, Memory <byte> body)
{
ThrowIfClosed();
return(methods.Send_Publish(exchange, routingKey, mandatory, properties, body));
}
public async Task Send_Publish(string exchange, string routingKey, bool mandatory, MessageProperties properties, Memory <byte> bodyBytes)
{
var buffer = await socket.GetWriteBuffer();
try
{
WritePayload();
await buffer.FlushAsync();
}
finally
{
socket.ReleaseWriteBuffer();
}
void WritePayload()
{
var writer = new CustomBufferWriter <PipeWriter>(buffer);
var payloadSizeHeader = writer.WriteFrameHeader(FrameType.Method, channelNumber);
writer.Write(Method.Basic.Publish);
writer.Write(Reserved);
writer.Write(Reserved);
writer.WriteShortString(exchange);
writer.WriteShortString(routingKey);
writer.WriteBits(mandatory);
writer.Commit();
BinaryPrimitives.WriteUInt32BigEndian(payloadSizeHeader, ((uint)writer.BytesCommitted - FrameHeaderSize));
writer.Write(FrameEnd);
var body = bodyBytes.Span;
WriteContentHeaderFrame(ref writer, properties, (ulong)body.Length);
var framesToWrite = body.Length > 0;
while (framesToWrite)
{
Span <byte> frame;
if (body.Length > maxContentBodySize)
{
frame = body.Slice(0, (int)maxContentBodySize);
body = body.Slice((int)maxContentBodySize);
}
else
{
frame = body;
framesToWrite = false;
}
WriteContentBodyFrame(ref writer, frame);
}
writer.Commit();
}
}