/// <summary>
/// Creates an instace of <see cref="InboxSubscription"/>
/// </summary>
/// <param name="owner"></param>
/// <param name="sid"></param>
/// <param name="subject"></param>
/// <param name="feedback"></param>
internal InboxSubscription(
SubscriptionPool owner,
long sid,
string subject,
IRequestReplayFeedback feedback
)
: base(owner, sid, subject, queue: string.Empty, useCache: false)
{
this._feedback = feedback;
}
/// <summary>
/// Entry-point to register a special INBOX subscription
/// internally used for the request-reply mechanism.
/// </summary>
/// <param name="subject">The subject to subscribe to.</param>
/// <param name="feedback">The reference to the reply message handler.</param>
/// <returns>An instance of <see cref="InboxSubscription"/>.</returns>
internal InboxSubscription SubscribeInbox(
string subject,
IRequestReplayFeedback feedback
)
{
lock (this._sublocker)
{
//creates a new instance of subscription proxy
this._ssid++;
var sub = new InboxSubscription(this, this._ssid, subject, feedback);
//then register it
this._subRegister.Add(this._ssid, sub);
//finally, enqueues the request of subscription to be
//sent to the NATS broker.
this._connmgr.EnqueueSubscriptionOperation(sub.ProtoMessageSub);
return(sub);
}
}
