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#602 Invoke APM callbacks on the threadpool.

This commit is contained in:
Chris R 2016-03-31 12:35:20 -07:00
parent 6725d68559
commit 3a97a6bdfd
4 changed files with 65 additions and 22 deletions
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9
src/Microsoft.AspNetCore.Http/Internal/ReferenceReadStream.cs
View File

@ -138,6 +138,9 @@ namespace Microsoft.AspNetCore.Http.Internal
}
if (callback != null)
{
// Offload callbacks to avoid stack dives on sync completions.
var ignored = Task.Run(() =>
{
try
{
@ -147,11 +150,17 @@ namespace Microsoft.AspNetCore.Http.Internal
{
// Suppress exceptions on background threads.
}
});
}
}
public override int EndRead(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException(nameof(asyncResult));
}
var task = (Task<int>)asyncResult;
return task.GetAwaiter().GetResult();
}

16
src/Microsoft.AspNetCore.WebUtilities/BufferedReadStream.cs
View File

@ -228,9 +228,20 @@ namespace Microsoft.AspNetCore.WebUtilities
TaskCompletionSource<int> tcs = new TaskCompletionSource<int>(state);
tcs.TrySetResult(toCopy);
if (callback != null)
{
// Offload callbacks to avoid stack dives on sync completions.
var ignored = Task.Run(() =>
{
try
{
callback(tcs.Task);
}
catch (Exception)
{
// Suppress exceptions on background threads.
}
});
}
return tcs.Task;
}
@ -239,6 +250,11 @@ namespace Microsoft.AspNetCore.WebUtilities
public override int EndRead(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException(nameof(asyncResult));
}
Task<int> task = asyncResult as Task<int>;
if (task != null)
{

9
src/Microsoft.AspNetCore.WebUtilities/FileBufferingReadStream.cs
View File

@ -231,6 +231,9 @@ namespace Microsoft.AspNetCore.WebUtilities
}
if (callback != null)
{
// Offload callbacks to avoid stack dives on sync completions.
var ignored = Task.Run(() =>
{
try
{
@ -240,11 +243,17 @@ namespace Microsoft.AspNetCore.WebUtilities
{
// Suppress exceptions on background threads.
}
});
}
}
public override int EndRead(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException(nameof(asyncResult));
}
var task = (Task<int>)asyncResult;
return task.GetAwaiter().GetResult();
}

9
src/Microsoft.AspNetCore.WebUtilities/MultipartReaderStream.cs
View File

@ -183,6 +183,9 @@ namespace Microsoft.AspNetCore.WebUtilities
}
if (callback != null)
{
// Offload callbacks to avoid stack dives on sync completions.
var ignored = Task.Run(() =>
{
try
{
@ -192,11 +195,17 @@ namespace Microsoft.AspNetCore.WebUtilities
{
// Suppress exceptions on background threads.
}
});
}
}
public override int EndRead(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentNullException(nameof(asyncResult));
}
var task = (Task<int>)asyncResult;
return task.GetAwaiter().GetResult();
}