113 lines
2.8 KiB
D
113 lines
2.8 KiB
D
module tristanable.watcher;
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import tristanable.manager : Manager;
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import tristanable.request : Request;
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import tristanable.notifications : NotificationReply;
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import std.socket : Socket;
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import core.thread : Thread;
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import bmessage : receiveMessage;
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/* TODO: Watcher class to watch for stuff, and add to manager's queues */
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/* TODO: maneger class to use commands on, enqueue and wait for dequeue */
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public final class Watcher : Thread
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{
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/**
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* The associated Manager
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*
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* Used to access the queues.
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*/
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private Manager manager;
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/**
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* The endpoint host we are connected to
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*/
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private Socket endpoint;
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/**
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* Whether or not the watcher is active
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*/
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private bool isActive;
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this(Manager manager, Socket endpoint)
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{
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super(&watchLoop);
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this.manager = manager;
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this.endpoint = endpoint;
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isActive = true;
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}
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public void stopWatcher()
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{
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isActive = false;
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}
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private void watchLoop()
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{
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while(isActive)
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{
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/* The received message (tag+data) */
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byte[] receivedPayload;
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/* The message's tag */
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ulong receivedTag;
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/* The message's data */
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byte[] receivedMessage;
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/* Receive a message */
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bool recvStatus = receiveMessage(endpoint, receivedPayload);
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/* TODO: Status check */
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/* Fetch the `tag` */
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receivedTag = *(cast(ulong*)receivedPayload.ptr);
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/* Fetch the `data` */
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receivedMessage = receivedPayload[8..receivedPayload.length];
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/* Lock the queue for reading */
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manager.lockQueue();
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/* Get the queue */
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Request[] currentQueue = manager.getQueue();
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/* Check to see if this is a tag we are awaiting */
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bool foundTag = manager.isValidTag(receivedTag);
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ulong requestPosition = manager.getTagPosition(receivedTag);
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/**
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* Check if the tag was found
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*
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* This only accounts for tags requested
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*/
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if(foundTag)
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{
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/* Fulfill the request */
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currentQueue[requestPosition].fulfill(receivedMessage);
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}
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/**
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* Check if the tag was reservd
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*/
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else if(manager.isReservedTag(receivedTag))
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{
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/* Lock the notification queue */
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manager.lockNotificationQueue();
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/* Create the NotificationReply */
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NotificationReply notifyReply = new NotificationReply(receivedTag, receivedMessage);
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/* Unlock the notification queue */
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manager.unlockNotificationQueue();
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}
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else
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{
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/* TODO: */
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}
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/* Unlock the queue */
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manager.unlockQueue();
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}
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}
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} |