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update stream copying

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This commit is contained in:
Luke Pulverenti
2017-05-25 09:00:14 -04:00
parent d035d7eaec
commit 28988b056c
12 changed files with 468 additions and 406 deletions
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19
Emby.Server.Implementations/IO/AsyncStreamCopier.cs
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@@ -8,7 +8,7 @@ namespace Emby.Server.Implementations.IO
public class AsyncStreamCopier : IDisposable
{
// size in bytes of the buffers in the buffer pool
private const int DefaultBufferSize = 4096;
private const int DefaultBufferSize = 81920;
private readonly int _bufferSize;
// number of buffers in the pool
private const int DefaultBufferCount = 4;
@@ -38,15 +38,16 @@ namespace Emby.Server.Implementations.IO
// stored here for rethrow
private Exception _exception;
public TaskCompletionSource<bool> TaskCompletionSource;
public TaskCompletionSource<long> TaskCompletionSource;
private long _bytesToRead;
private long _totalBytesWritten;
private CancellationToken _cancellationToken;
public int IndividualReadOffset = 0;
public AsyncStreamCopier(Stream source,
Stream target,
long bytesToRead,
CancellationToken cancellationToken,
long bytesToRead,
CancellationToken cancellationToken,
bool closeStreamsOnEnd = false,
int bufferSize = DefaultBufferSize,
int bufferCount = DefaultBufferCount)
@@ -77,15 +78,15 @@ namespace Emby.Server.Implementations.IO
ThrowExceptionIfNeeded();
}
public static Task CopyStream(Stream source, Stream target, int bufferSize, int bufferCount, CancellationToken cancellationToken)
public static Task<long> CopyStream(Stream source, Stream target, int bufferSize, int bufferCount, CancellationToken cancellationToken)
{
return CopyStream(source, target, 0, bufferSize, bufferCount, cancellationToken);
}
public static Task CopyStream(Stream source, Stream target, long size, int bufferSize, int bufferCount, CancellationToken cancellationToken)
public static Task<long> CopyStream(Stream source, Stream target, long size, int bufferSize, int bufferCount, CancellationToken cancellationToken)
{
var copier = new AsyncStreamCopier(source, target, size, cancellationToken, false, bufferSize, bufferCount);
var taskCompletion = new TaskCompletionSource<bool>();
var taskCompletion = new TaskCompletionSource<long>();
copier.TaskCompletionSource = taskCompletion;
@@ -109,7 +110,7 @@ namespace Emby.Server.Implementations.IO
try
{
copier.EndCopy(result);
taskCompletion.TrySetResult(true);
taskCompletion.TrySetResult(copier._totalBytesWritten);
}
catch (Exception ex)
{
@@ -238,7 +239,7 @@ namespace Emby.Server.Implementations.IO
bytesToWrite = _sizes[bufferIndex];
}
_target.BeginWrite(_buffers[bufferIndex], 0, bytesToWrite, EndWrite, null);
_target.BeginWrite(_buffers[bufferIndex], IndividualReadOffset, bytesToWrite - IndividualReadOffset, EndWrite, null);
_totalBytesWritten += bytesToWrite;
}