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//
// StreamContent.cs
//
// Authors:
// Marek Safar <marek.safar@gmail.com>
//
// Copyright (C) 2011 Xamarin Inc (http://www.xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.IO;
using System.Threading.Tasks;
namespace System.Net.Http
{
public class StreamContent : HttpContent
{
readonly Stream content;
readonly int bufferSize;
public StreamContent (Stream content)
: this (content, 16 * 1024)
{
}
public StreamContent (Stream content, int bufferSize)
{
if (content == null)
throw new ArgumentNullException ("content");
if (bufferSize <= 0)
throw new ArgumentOutOfRangeException ("bufferSize");
this.content = content;
this.bufferSize = bufferSize;
}
protected override Task<Stream> CreateContentReadStreamAsync ()
{
return Task.FromResult (content);
}
protected override void Dispose (bool disposing)
{
if (disposing) {
content.Dispose ();
}
base.Dispose (disposing);
}
protected internal override Task SerializeToStreamAsync (Stream stream, TransportContext context)
{
return content.CopyToAsync (stream, bufferSize);
}
protected internal override bool TryComputeLength (out long length)
{
if (!content.CanSeek) {
length = 0;
return false;
}
length = content.Length;
return true;
}
}
}
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