/// <summary>
/// Sends the body of a chunked transfer-encoded message
/// </summary>
/// <param name="socket"></param>
/// <param name="abortEvent"></param>
/// <param name="message"></param>
internal protected void SendBodyChunked(Socket socket, ManualResetEvent abortEvent, HttpMessage message, EventHandler <HttpMessageProgressEventArgs> onProgress, object stateObject)
{
int segmentNumber = 0;
int totalBytesSent = 0;
byte[] body = message.ToByteArray(false /* no headers */, true /* just the body */);
while (true)
{
// if we have sent the entire message then we can abortEvent
if (totalBytesSent > body.Length)
{
break;
}
// start out with a full segment size (this is just the buffer size by which we will send - 8k seems to be really common although i have no idea why other than that it's a power of 2...)
int chunkSize = MAX_SEGMENT_SIZE_CHUNKED;
// adjust how much we need to send to complete the message
if (chunkSize > (body.Length - totalBytesSent))
{
chunkSize = (body.Length - totalBytesSent);
}
// bump up the segment number
segmentNumber++;
// create a chunk of data to send
byte[] bytes = new byte[chunkSize];
Buffer.BlockCopy(body, totalBytesSent, bytes, 0, chunkSize);
// create a chunk around the data
HttpChunk chunk = new HttpChunk(bytes);
// send the data
int bytesSent = HttpUtils.SendBytes(socket, chunk.ToByteArray());
// if any data was sent
if (bytesSent > 0)
{
// figure out how much as data, minus the chunks control chars
int actualBytesSent = bytesSent - chunk.GetNonDataByteCount();
// if the chunksize is zero or less then we'll return what was sent
if (chunkSize > 0)
{
// all other times it'll not count the non data byte count in the chunk
bytesSent = actualBytesSent;
}
}
// tally the number of bytes we have sent
totalBytesSent += bytesSent;
// notify the callback of our progress
this.OnProgress(onProgress, this, new HttpMessageProgressEventArgs(message, false, bytes, totalBytesSent, stateObject));
// clear that buffer immediately
bytes = null;
// see if we have been instructed to abortEvent reading
if (abortEvent != null)
{
if (abortEvent.WaitOne(1, false))
{
throw new HttpMessageWriterAbortedException(message);
}
}
}
}
