Watcher
- Hoisted common imports into a `version(unittest)` Watcher (unittests) - Added a unittest for testing `stop()` to unblock `dequeue()`s
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@ -130,6 +130,9 @@ public class Watcher : Thread
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}
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// TODO: Unblock all `dequeue()`'s here
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// TODO: Get a reason for exiting (either cause of error OR shutdoiwn (see below (which in turn is called by the Manager)))
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version(unittest) { writeln("Exited watcher loop"); }
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this.manager.stop();
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}
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/**
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@ -143,6 +146,13 @@ public class Watcher : Thread
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}
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}
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version(unittest)
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{
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import std.socket;
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import std.stdio;
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import core.thread;
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}
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/**
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* Set up a server which will send some tagged messages to us (the client),
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* where we have setup a `Manager` to watch the queues with tags `42` and `69`,
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@ -150,10 +160,6 @@ public class Watcher : Thread
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*/
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unittest
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{
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import std.socket;
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import std.stdio;
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import core.thread;
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Address serverAddress = parseAddress("::1", 0);
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Socket server = new Socket(AddressFamily.INET6, SocketType.STREAM, ProtocolType.TCP);
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server.bind(serverAddress);
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@ -296,4 +302,132 @@ unittest
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/* Stop the manager */
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manager.stop();
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}
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/**
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* Setup a server which dies (kills its connection to us)
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* midway whilst we are doing a `dequeue()`
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*
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* This is to test the exception triggering mechanism
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* for such a case
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*/
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unittest
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{
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}
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/**
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* Setup a `Manager` and then block on a `dequeue()`
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* but from another thread shutdown the `Manager`.
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*
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* This is to test the exception triggering mechanism
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* for such a case
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*/
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unittest
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{
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writeln("<<<<< Test 4 start >>>>>");
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Address serverAddress = parseAddress("::1", 0);
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Socket server = new Socket(AddressFamily.INET6, SocketType.STREAM, ProtocolType.TCP);
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server.bind(serverAddress);
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server.listen(0);
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class ServerThread : Thread
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{
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this()
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{
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super(&worker);
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}
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private void worker()
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{
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Socket clientSocket = server.accept();
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BClient bClient = new BClient(clientSocket);
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Thread.sleep(dur!("seconds")(7));
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writeln("Server start");
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/**
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* Create a tagged message to send
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*
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* tag 42 payload Cucumber 😳️
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*/
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TaggedMessage message = new TaggedMessage(42, cast(byte[])"Cucumber 😳️");
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byte[] tEncoded = message.encode();
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writeln("server send status: ", bClient.sendMessage(tEncoded));
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writeln("server send [done]");
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sleep(dur!("seconds")(15));
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writeln("Server ending");
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}
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}
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ServerThread serverThread = new ServerThread();
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serverThread.start();
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Socket client = new Socket(AddressFamily.INET6, SocketType.STREAM, ProtocolType.TCP);
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writeln(server.localAddress);
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Manager manager = new Manager(client);
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Queue sixtyNine = new Queue(69);
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manager.registerQueue(sixtyNine);
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/* Connect our socket to the server */
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client.connect(server.localAddress);
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/* Start the manager and let it manage the socket */
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manager.start();
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// The failing exception
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TristanableException failingException;
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class DequeueThread : Thread
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{
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private Queue testQueue;
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this(Queue testQueue)
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{
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super(&worker);
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this.testQueue = testQueue;
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}
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public void worker()
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{
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try
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{
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writeln("dequeuThread: Before dequeue()");
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this.testQueue.dequeue();
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writeln("dequeueThread: After dequeue() [should not get here]");
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}
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catch(TristanableException e)
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{
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writeln("Got tristanable exception during dequeue(): "~e.toString());
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// TODO: Fliup boolean is all cgood and assret it later
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failingException = e;
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}
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}
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}
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DequeueThread dequeueThread = new DequeueThread(sixtyNine);
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dequeueThread.start();
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// Stop the manager
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manager.stop();
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writeln("drop");
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// Wait for the dequeueing thread to stop
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dequeueThread.join();
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// Check condition
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assert(failingException !is null);
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assert(failingException.getError() == ErrorType.MANAGER_SHUTDOWN);
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}
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