// Internal for tests
internal ActiveHandlerTrackingEntry CreateHandlerEntry(string name)
{
var options = GetOptions(name);
var builder = new DefaultHttpMessageHandlerBuilder();
Configure(builder);
// Wrap the handler so we can ensure the inner handler outlives the outer handler.
var handler = new LifetimeTrackingHttpMessageHandler(builder.Build());
// Note that we can't start the timer here. That would introduce a very very subtle race condition
// with very short expiry times. We need to wait until we've actually handed out the handler once
// to start the timer.
//
// Otherwise it would be possible that we start the timer here, immediately expire it (very short
// timer) and then dispose it without ever creating a client. That would be bad. It's unlikely
// this would happen, but we want to be sure.
return(new ActiveHandlerTrackingEntry(name, handler, options.HandlerLifetime));
void Configure(HttpMessageHandlerBuilder b)
{
for (var i = 0; i < options.HttpMessageHandlerBuilderActions.Count; i++)
{
options.HttpMessageHandlerBuilderActions[i](b);
}
}
}
public ActiveHandlerTrackingEntry(
string name,
LifetimeTrackingHttpMessageHandler handler,
TimeSpan lifetime)
{
Name = name;
Handler = handler;
Lifetime = lifetime;
_lock = new object();
}