/// <summary>
/// Based on https://github.com/NimaAra/Easy.Common/blob/master/Easy.Common/RestClient.cs and
/// the associated blog post https://nima-ara-blog.azurewebsites.net/beware-of-the-net-httpclient/
/// </summary>
private void AddConnectionLeaseTimeout(Uri endpoint)
{
if (!endpoint.IsAbsoluteUri)
{
return;
}
var key = new EndpointCacheKey(endpoint);
if (!_endpoinsWithTcp.TryGetValue(key, out var _))
{
// ServicePointManager is responsible for managing different properties of a TCP connection
// and one of such properties is the ConnectionLeaseTimeout.
// This specifies how long (in ms) the TCP socket can stay open.
// By default the value of this property is set to -1 resulting in the socket
// staying open indefinitely (relatively speaking) so all we have to do is set it to a more realistic value:
try
{
ServicePointManager.FindServicePoint(endpoint)
.ConnectionLeaseTimeout = (int)HttpClientConfig.ConnectionLifeTime.TotalMilliseconds;
}
catch (NotImplementedException)
{
// Unity doesn't implement see https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/issues/2537
}
_endpoinsWithTcp[key] = true;
}
}
/// <summary>
/// Based on https://github.com/NimaAra/Easy.Common/blob/master/Easy.Common/RestClient.cs and
/// the associated blog post https://nima-ara-blog.azurewebsites.net/beware-of-the-net-httpclient/
/// </summary>
private void AddConnectionLeaseTimeout(Uri endpoint)
{
if (!endpoint.IsAbsoluteUri)
{
return;
}
var key = new EndpointCacheKey(endpoint);
if (!_endpoinsWithTcp.TryGetValue(key, out var _))
{
// ServicePointManager is responsible for managing different properties of a TCP connection
// and one of such properties is the ConnectionLeaseTimeout.
// This specifies how long (in ms) the TCP socket can stay open.
// By default the value of this property is set to -1 resulting in the socket
// staying open indefinitely (relatively speaking) so all we have to do is set it to a more realistic value:
ServicePointManager.FindServicePoint(endpoint)
.ConnectionLeaseTimeout = (int)HttpClientConfig.ConnectionLifeTime.TotalMilliseconds;
_endpoinsWithTcp[key] = true;
}
}
