/// <summary>
/// Publishes a message on the bus, but on its own thread, with a 2 second timeout that will cancel the message
/// </summary>
public void Publish <T>(T msg) where T : Message
{
ThreadPool.QueueUserWorkItem(delegate
{
Exception ex = null;
CancellationTokenSource cts = new CancellationTokenSource();
Task task = Task.Run(() =>
{
try
{
using (cts.Token.Register(Thread.CurrentThread.Abort))
{
bus.Publish(msg);
}
}
catch (Exception e)
{
if (!(e is ThreadAbortException))
{
ex = e;
}
}
}, cts.Token);
bool done = task.Wait(2000);
if (ex != null)
{
throw ex;
}
if (!done)
{
cts.Cancel();
}
});
}
/// <summary>
/// Publishes a message on the bus, but on its own thread, with a 2 second timeout that will cancel the message
/// </summary>
public void Publish <T>(T msg, bool failureToast = false) where T : fastipc.Message.Message
{
ThreadPool.QueueUserWorkItem(delegate
{
Exception ex = null;
CancellationTokenSource cts = new CancellationTokenSource();
Task task = Task.Run(() =>
{
try
{
using (cts.Token.Register(Thread.CurrentThread.Abort))
{
if (bus != null)
{
bus.Publish(msg);
}
}
}
catch (Exception e)
{
if (!(e is ThreadAbortException))
{
ex = e;
}
}
}, cts.Token);
bool done = task.Wait(2000);
if (ex != null)
{
throw ex;
}
if (done)
{
//if the service was down, get the current service status now...
if (this._status == Statuses.CommunicationFailure)
{
UpdateStatus(Statuses.Listening);
Publish(new GetStatus());
}
}
else
{
UpdateStatus(Statuses.CommunicationFailure);
cts.Cancel();
if (failureToast)
{
SendToast("Failure", "The FingerPass Windows service did not respond. Is it stopped?");
}
}
});
}
static void Main(string[] args)
{
var pipeName = new SimpleStringPipeName(
name: "Example",
side: Side.Out);
var bus = new NamedPipeBus(pipeName: pipeName);
new ProcessBHost(bus);
Console.WriteLine($"Process B Host Runing");
Console.WriteLine("type exit to close");
Console.WriteLine("type help for command list");
var exit = false;
do
{
var cmd = Console.ReadLine();
if (string.IsNullOrWhiteSpace(cmd))
{
continue;
}
switch (cmd.ToLower())
{
case "exit":
exit = true;
break;
case "ping":
bus.Publish(new Ping());
break;
case "help":
case "?":
Console.WriteLine("exit: exit program");
Console.WriteLine("ping: publish ping message");
Console.WriteLine("cls: Clear Screen");
break;
case "cls":
Console.Clear();
break;
}
} while (!exit);
bus.Dispose();
}
private void can_exchange_messages()
{
var timeout = TimeSpan.FromSeconds(3);
var processADone = new ManualResetEventSlim(false);
var processBDone = new ManualResetEventSlim(false);
// Process A Simulation
new Thread(() =>
{
var pipeName = new SimpleStringPipeName(
name: "UnitTest",
side: Side.Out);
var bus = new NamedPipeBus(pipeName: pipeName);
var inHost = new TestHandler(
handleStringContent: msg => {
_logger.WriteLine($"[ProcessA] Received new message of type {msg.GetType().Name}: {msg.Content}");
},
handleTestMessage: msg => {
_logger.WriteLine($"[ProcessA] Received new message of type {msg.GetType().Name}");
processADone.Set();
}
);
bus.Subscribe(inHost);
bus.Publish(new StringContentMessage("Message from In"));
bus.Publish(new TestMessage());
})
{
IsBackground = true
}
.Start();
// Process B Simulation
new Thread(() =>
{
var pipeName = new SimpleStringPipeName(name: "UnitTest");
var bus = new NamedPipeBus(pipeName: pipeName);
var outHost = new TestHandler(
handleStringContent: msg => {
_logger.WriteLine($"[ProcessB] Received new message of type {msg.GetType().Name}: {msg.Content}");
},
handleTestMessage: msg => {
_logger.WriteLine($"[ProcessB] Received new message of type {msg.GetType().Name}");
processBDone.Set();
}
);
bus.Subscribe(outHost);
bus.Publish(new StringContentMessage("Message from Out"));
bus.Publish(new TestMessage());
})
{
IsBackground = true
}
.Start();
processBDone.Wait(timeout: timeout);
processADone.Wait(timeout: timeout);
Assert.True(
condition: processBDone.IsSet,
userMessage: "Failed to receive message from 'ProcessA'"
);
Assert.True(
condition: processADone.IsSet,
userMessage: "Failed to receive message from 'ProcessB'"
);
}