Changed pipe names to end with ".pipe".

Added timeouts to closing.
This commit is contained in:
Harrison Deng 2021-04-10 13:57:38 -05:00
parent 526e657f59
commit 78e9e185c2
5 changed files with 238 additions and 218 deletions

View File

@ -18,27 +18,28 @@ namespace GameServiceWarden.Core.Games
{ {
public class ServiceDescriptor //entity public class ServiceDescriptor //entity
{ {
private const string DISTRIBUTOR_SUFFIX = "_dist"; private const string LOG_DISTRIBUTOR_PREFIX = "log_dist_";
private const int INIT_TIMEOUT = 1000; private const int TIMEOUT = 1000;
/// <summary> /// <summary>
/// The name of the service itself, independent of the name of the module this service is using. /// The name of the service itself, independent of the name of the module this service is using.
/// </summary> /// </summary>
public string ServiceName { get { return serviceName; } } public string ServiceName { get { return serviceName; } }
private readonly string serviceName; private readonly string serviceName;
private bool running; private readonly Guid runningUID;
private volatile bool running;
private readonly IService service; private readonly IService service;
/// <summary> /// <summary>
/// The services log output pipe name. /// The services log output pipe name.
/// </summary> /// </summary>
public string ServiceLogPipeName { get { return (serviceName); } } public string ServiceLogPipeName { get { return (runningUID.ToString() + ".pipe"); } }
private string moduleName; private string moduleName;
private readonly string assemblyName; private readonly string assemblyName;
private NamedPipeServerStream logReceiver; private volatile NamedPipeServerStream logReceiver;
private NamedPipeClientStream logSender; private volatile NamedPipeClientStream logSender;
private ConcurrentStack<NamedPipeServerStream> logStreamListeners; private ConcurrentStack<NamedPipeServerStream> logStreamListeners;
private Task logUpdateTask; private Task logUpdateTask;
private Task acceptingTask; private Task acceptingTask;
private CancellationTokenSource stopToken; private volatile CancellationTokenSource stopToken;
/// <summary> /// <summary>
/// Name of module this service uses. /// Name of module this service uses.
@ -52,6 +53,8 @@ namespace GameServiceWarden.Core.Games
this.assemblyName = assemblyName ?? throw new ArgumentNullException("assemblyName"); this.assemblyName = assemblyName ?? throw new ArgumentNullException("assemblyName");
this.serviceName = serviceName ?? throw new ArgumentNullException("serviceName"); this.serviceName = serviceName ?? throw new ArgumentNullException("serviceName");
this.service.StateChangeEvent += OnServiceStateChange; this.service.StateChangeEvent += OnServiceStateChange;
runningUID = Guid.NewGuid();
Dictionary<string, IServiceConfigurable> tempConfigurables = new Dictionary<string, IServiceConfigurable>(); Dictionary<string, IServiceConfigurable> tempConfigurables = new Dictionary<string, IServiceConfigurable>();
foreach (IServiceConfigurable configurable in service.Configurables) foreach (IServiceConfigurable configurable in service.Configurables)
@ -71,9 +74,9 @@ namespace GameServiceWarden.Core.Games
{ {
Logger.Log($"\"{ServiceName}\" is starting."); Logger.Log($"\"{ServiceName}\" is starting.");
if (running) throw new InvalidOperationException("Service instance already running."); if (running) throw new InvalidOperationException("Service instance already running.");
logReceiver = new NamedPipeServerStream(ServiceLogPipeName + DISTRIBUTOR_SUFFIX, PipeDirection.In, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous); logReceiver = new NamedPipeServerStream(LOG_DISTRIBUTOR_PREFIX + ServiceLogPipeName, PipeDirection.In, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous);
Task waitForConnection = logReceiver.WaitForConnectionAsync(); Task waitForConnection = logReceiver.WaitForConnectionAsync();
logSender = new NamedPipeClientStream(".", ServiceLogPipeName + DISTRIBUTOR_SUFFIX, PipeDirection.Out); logSender = new NamedPipeClientStream(".", LOG_DISTRIBUTOR_PREFIX + ServiceLogPipeName, PipeDirection.Out);
logSender.Connect(); logSender.Connect();
waitForConnection.Wait(); waitForConnection.Wait();
byte[] idToken = Guid.NewGuid().ToByteArray(); byte[] idToken = Guid.NewGuid().ToByteArray();
@ -81,13 +84,15 @@ namespace GameServiceWarden.Core.Games
byte[] receivedToken = new byte[idToken.Length]; byte[] receivedToken = new byte[idToken.Length];
logReceiver.Read(receivedToken); logReceiver.Read(receivedToken);
if (!sendTokenTask.AsTask().Wait(500) || !sendTokenTask.IsCompletedSuccessfully) { if (!sendTokenTask.AsTask().Wait(500) || !sendTokenTask.IsCompletedSuccessfully)
{
throw new ServiceInitializationException("Error while sending identification token."); throw new ServiceInitializationException("Error while sending identification token.");
} }
if (!idToken.SequenceEqual(receivedToken)) { if (!idToken.SequenceEqual(receivedToken))
{
throw new ServiceInitializationException("Wrong distributor identification token."); throw new ServiceInitializationException("Wrong distributor identification token.");
} }
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource(INIT_TIMEOUT); CancellationTokenSource cancellationTokenSource = new CancellationTokenSource(TIMEOUT);
Task initializationTask = Task.Run(() => service.InitializeService(logSender), cancellationTokenSource.Token); Task initializationTask = Task.Run(() => service.InitializeService(logSender), cancellationTokenSource.Token);
initializationTask.Wait(); initializationTask.Wait();
cancellationTokenSource.Dispose(); cancellationTokenSource.Dispose();
@ -102,18 +107,27 @@ namespace GameServiceWarden.Core.Games
/// <exception cref="InvalidOperationException">Is thrown when the is not running.</exception> /// <exception cref="InvalidOperationException">Is thrown when the is not running.</exception>
public void Stop() public void Stop()
{ {
Logger.Log("\"{ServiceName}\" is stopping.");
if (!running) throw new InvalidOperationException("Service instance not running."); if (!running) throw new InvalidOperationException("Service instance not running.");
Logger.Log($"\"{ServiceName}\" is stopping.");
service.ElegantShutdown(); service.ElegantShutdown();
logSender.Close();
logReceiver.Close();
stopToken.Cancel(); stopToken.Cancel();
try { try
acceptingTask.Wait(); {
} catch (AggregateException e) { if (!acceptingTask.Wait(TIMEOUT)) {
throw new TimeoutException($"Could not stop \"{ServiceName}\" accepting task within {TIMEOUT}ms.");
}
}
catch (AggregateException e)
{
e.Handle((exception) => exception is TaskCanceledException); e.Handle((exception) => exception is TaskCanceledException);
} }
try try
{ {
logUpdateTask.Wait(); if (!logUpdateTask.Wait(TIMEOUT)) {
throw new TimeoutException($"Could not stop \"{ServiceName}\" broadcast within{TIMEOUT}ms.");
}
} }
catch (AggregateException e) catch (AggregateException e)
{ {
@ -163,11 +177,13 @@ namespace GameServiceWarden.Core.Games
return running; return running;
} }
public string GetServiceName() { public string GetServiceName()
{
return serviceName; return serviceName;
} }
public string GetModuleName() { public string GetModuleName()
{
return moduleName; return moduleName;
} }
@ -180,7 +196,7 @@ namespace GameServiceWarden.Core.Games
private void OnServiceStateChange(object sender, bool running) private void OnServiceStateChange(object sender, bool running)
{ {
this.running = running; this.running = running;
Logger.Log($"{ServiceName}'s state changed to {(running ? "running" : "stopped")}.", LogLevel.DEBUG); Logger.Log($"The service \"{ServiceName}\" is changing states to {(running ? "running" : "stopped")}.", LogLevel.DEBUG);
ServiceStateChangeEvent?.Invoke(this, running); ServiceStateChangeEvent?.Invoke(this, running);
} }
@ -197,22 +213,26 @@ namespace GameServiceWarden.Core.Games
Logger.Log($"\"{ServiceName}\" stopped accepting log listeners."); Logger.Log($"\"{ServiceName}\" stopped accepting log listeners.");
} }
private async Task BroadcastLog() { private async Task BroadcastLog()
{
Stack<NamedPipeServerStream> completeStack = new Stack<NamedPipeServerStream>(); Stack<NamedPipeServerStream> completeStack = new Stack<NamedPipeServerStream>();
Stack<(Task, CancellationTokenSource)> writeTasks = new Stack<(Task, CancellationTokenSource)>(); Stack<(Task, CancellationTokenSource)> writeTasks = new Stack<(Task, CancellationTokenSource)>();
byte[] buffer = new byte[1024 * 8]; byte[] buffer = new byte[1024 * 8];
int fill; int fill;
Logger.Log($"\"{ServiceName}\" is now listening to the service log and broadcasting."); Logger.Log($"\"{ServiceName}\" is now listening to the service log and broadcasting.");
while ((fill = await logReceiver.ReadAsync(buffer, 0, buffer.Length, stopToken.Token)) > 0) while (running && (fill = await logReceiver.ReadAsync(buffer, 0, buffer.Length, stopToken.Token)) > 0)
{ {
Logger.Log($"Broadcasting {fill} bytes.", LogLevel.DEBUG); Logger.Log($"Broadcasting {fill} bytes.", LogLevel.DEBUG);
NamedPipeServerStream pipe; NamedPipeServerStream pipe;
while (logStreamListeners.TryPop(out pipe)) while (logStreamListeners.TryPop(out pipe))
{ {
if (!pipe.IsConnected) { if (!pipe.IsConnected)
{
pipe.Dispose(); pipe.Dispose();
Logger.Log($"\"{ServiceName}\" detected a disconnected log listener. Removing from list of listener(s).", LogLevel.DEBUG); Logger.Log($"\"{ServiceName}\" detected a disconnected log listener. Removing from list of listener(s).", LogLevel.DEBUG);
} else { }
else
{
CancellationTokenSource cancelToken = new CancellationTokenSource(1000); CancellationTokenSource cancelToken = new CancellationTokenSource(1000);
writeTasks.Push((pipe.WriteAsync(buffer, 0, fill, cancelToken.Token), cancelToken)); writeTasks.Push((pipe.WriteAsync(buffer, 0, fill, cancelToken.Token), cancelToken));
completeStack.Push(pipe); completeStack.Push(pipe);
@ -224,7 +244,8 @@ namespace GameServiceWarden.Core.Games
logStreamListeners.Push(completePipe); logStreamListeners.Push(completePipe);
} }
(Task, CancellationTokenSource) taskAndCancel; (Task, CancellationTokenSource) taskAndCancel;
while (writeTasks.TryPop(out taskAndCancel)) { while (writeTasks.TryPop(out taskAndCancel))
{
await taskAndCancel.Item1; await taskAndCancel.Item1;
taskAndCancel.Item2.Dispose(); taskAndCancel.Item2.Dispose();
} }

View File

@ -204,7 +204,6 @@ namespace GameServiceWarden.Core.Games
{ {
switch (action.action) switch (action.action)
{ {
//TODO FINISH MOVING THIS!!!!
case ServiceManagerAction.Type.View: case ServiceManagerAction.Type.View:
GetServiceNames(); GetServiceNames();
GetRunningServiceNames(); GetRunningServiceNames();

View File

@ -15,7 +15,8 @@ namespace GameServiceWarden.Core.UI
{ {
public class IPCMediator public class IPCMediator
{ {
private const int CONNECT_TIMEOUT = 1000; private const int TIMEOUT = 1000;
public string PipeName {get { return name + ".pipe"; } }
private readonly string name; private readonly string name;
private readonly ConcurrentDictionary<string, (NamedPipeServerStream, Task)> pipes; private readonly ConcurrentDictionary<string, (NamedPipeServerStream, Task)> pipes;
public BlockingCollection<(string, CommunicableType, byte[])> RequestQueue { get; private set; } public BlockingCollection<(string, CommunicableType, byte[])> RequestQueue { get; private set; }
@ -48,7 +49,7 @@ namespace GameServiceWarden.Core.UI
stopAcceptingToken.Cancel(); stopAcceptingToken.Cancel();
try try
{ {
acceptTask.Wait(); if (!acceptTask.Wait(TIMEOUT)) throw new TimeoutException($"IPCMediator \"{name}\" was unable to stop accepting task within {TIMEOUT}ms.");
} }
catch (AggregateException e) catch (AggregateException e)
{ {
@ -109,7 +110,7 @@ namespace GameServiceWarden.Core.UI
Logger.Log("Accepting Interface connections."); Logger.Log("Accepting Interface connections.");
while (active) while (active)
{ {
NamedPipeServerStream pipe = new NamedPipeServerStream(name, PipeDirection.InOut, NamedPipeServerStream.MaxAllowedServerInstances, PipeTransmissionMode.Byte, PipeOptions.Asynchronous); NamedPipeServerStream pipe = new NamedPipeServerStream(PipeName, PipeDirection.InOut, NamedPipeServerStream.MaxAllowedServerInstances, PipeTransmissionMode.Byte, PipeOptions.Asynchronous);
Logger.Log("Waiting for connection.", LogLevel.DEBUG); Logger.Log("Waiting for connection.", LogLevel.DEBUG);
await pipe.WaitForConnectionAsync(stopAcceptingToken.Token); await pipe.WaitForConnectionAsync(stopAcceptingToken.Token);
connectionTasks.Add(OnConnection(pipe)); connectionTasks.Add(OnConnection(pipe));
@ -135,7 +136,7 @@ namespace GameServiceWarden.Core.UI
Logger.Log("Interface attempting to connect.", LogLevel.DEBUG); Logger.Log("Interface attempting to connect.", LogLevel.DEBUG);
byte[] headerBuffer = new byte[sizeof(uint) * 2]; byte[] headerBuffer = new byte[sizeof(uint) * 2];
int headerFill = 0; int headerFill = 0;
CancellationTokenSource headerCancel = new CancellationTokenSource(CONNECT_TIMEOUT); CancellationTokenSource headerCancel = new CancellationTokenSource(TIMEOUT);
try try
{ {
int readLength; int readLength;
@ -148,7 +149,7 @@ namespace GameServiceWarden.Core.UI
catch (AggregateException e) catch (AggregateException e)
{ {
e.Handle((exception) => exception is TaskCanceledException); e.Handle((exception) => exception is TaskCanceledException);
Logger.Log($"Interface did not send header data within {CONNECT_TIMEOUT}ms.", LogLevel.DEBUG); Logger.Log($"Interface did not send header data within {TIMEOUT}ms.", LogLevel.DEBUG);
} finally { } finally {
await pipe.DisposeAsync(); await pipe.DisposeAsync();
headerCancel.Dispose(); headerCancel.Dispose();
@ -164,7 +165,7 @@ namespace GameServiceWarden.Core.UI
byte[] bodyBuffer = new byte[bodyLength]; byte[] bodyBuffer = new byte[bodyLength];
int bodyFill = 0; int bodyFill = 0;
CancellationTokenSource bodyCancel = new CancellationTokenSource(CONNECT_TIMEOUT); CancellationTokenSource bodyCancel = new CancellationTokenSource(TIMEOUT);
try try
{ {
int readLength = 0; int readLength = 0;
@ -177,7 +178,7 @@ namespace GameServiceWarden.Core.UI
catch (AggregateException e) catch (AggregateException e)
{ {
e.Handle((exception) => exception is TaskCanceledException); e.Handle((exception) => exception is TaskCanceledException);
Logger.Log($"Interface failed to send body data within {CONNECT_TIMEOUT}.", LogLevel.DEBUG); Logger.Log($"Interface failed to send body data within {TIMEOUT}.", LogLevel.DEBUG);
} finally { } finally {
await pipe.DisposeAsync(); await pipe.DisposeAsync();
bodyCancel.Dispose(); bodyCancel.Dispose();
@ -204,7 +205,7 @@ namespace GameServiceWarden.Core.UI
requestAccepted = true; requestAccepted = true;
response.identifier = request.requestedIdentifier; response.identifier = request.requestedIdentifier;
} }
CancellationTokenSource cancelResponse = new CancellationTokenSource(CONNECT_TIMEOUT); CancellationTokenSource cancelResponse = new CancellationTokenSource(TIMEOUT);
try try
{ {
await pipe.WriteAsync(JsonSerializer.SerializeToUtf8Bytes(response), cancelResponse.Token); await pipe.WriteAsync(JsonSerializer.SerializeToUtf8Bytes(response), cancelResponse.Token);
@ -212,7 +213,7 @@ namespace GameServiceWarden.Core.UI
catch (AggregateException e) catch (AggregateException e)
{ {
e.Handle((exception) => exception is TaskCanceledException); e.Handle((exception) => exception is TaskCanceledException);
Logger.Log($"Interface did not receive response within {CONNECT_TIMEOUT}ms.", LogLevel.DEBUG); Logger.Log($"Interface did not receive response within {TIMEOUT}ms.", LogLevel.DEBUG);
} }
if (!requestAccepted) { if (!requestAccepted) {
cancelResponse.Dispose(); cancelResponse.Dispose();

View File

@ -5,18 +5,18 @@
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View File

@ -302,15 +302,14 @@ namespace GameServiceWarden.Core.Tests.Modules.Games
{ {
using (StreamReader reader = new StreamReader(clientStreams[i])) using (StreamReader reader = new StreamReader(clientStreams[i]))
{ {
CancellationTokenSource cancelToken = new CancellationTokenSource(15000);
string message = null; string message = null;
Task task = Task.Run(() => message = reader.ReadLine(), cancelToken.Token); Task clientTask = Task.Run(() => message = reader.ReadLine());
Assert.True(task.Wait(10000)); Assert.True(clientTask.Wait(1000));
Assert.True(COMMAND.Equals(message), $"Received message \"{message}\" when expecting \"{COMMAND}\""); Assert.True(COMMAND.Equals(message), $"Received message \"{message}\" when expecting \"{COMMAND}\"");
cancelToken.Dispose();
} }
} }
serviceManager.StopService(FAKE_SERVICE_NAME); Task task = Task.Run(() => serviceManager.StopService(FAKE_SERVICE_NAME));
Assert.True(task.Wait(5000)); //TODO FIX WHY THIS IS HAPPENING!!!!!
} }
[Fact] [Fact]