public void InterruptInput()
{
bool passed = false, aborted = false;
var evt = new AlsaSequencerEvent();
AlsaSequencer seq = null;
int appPort = -1;
var waitStart = new ManualResetEvent(false);
using (seq = new AlsaSequencer(AlsaIOType.Input, AlsaIOMode.None)) {
appPort = seq.CreateSimplePort("alsa-sharp-test-input", AlsaPortCapabilities.Write | AlsaPortCapabilities.NoExport, AlsaPortType.Application | AlsaPortType.MidiGeneric);
var cinfo = new AlsaClientInfo {
Client = -1
};
int client = -1;
while (seq.QueryNextClient(cinfo))
{
if (cinfo.Name.Contains("Midi Through"))
{
client = cinfo.Client;
}
}
if (client < 0)
{
Console.Error.WriteLine("Midi Through not found. Not testable.");
return; // not testable
}
seq.ConnectFrom(appPort, client, 0);
try {
seq.ResetPoolInput();
var task = Task.Run(() => {
waitStart.Set();
try {
seq.Input(evt, appPort);
passed = true;
} catch (Exception ex) {
passed = false;
aborted = true;
Console.Error.WriteLine("Input threw an error: " + ex);
}
});
waitStart.WaitOne();
// it will cause ALSA error as it's waiting for input in blocking mode.
seq.DisconnectFrom(appPort, client, 0);
task.Wait(50);
Assert.IsFalse(passed, "input should keep listening");
seq.DeleteSimplePort(appPort);
task.Wait(50);
seq.Dispose();
seq = null;
task.Wait(50);
} finally {
if (seq != null)
{
seq.Dispose();
}
}
// It doesn't even run exception part...
Assert.IsFalse(aborted, "We expect it not to abort...");
}
}
public static void Stop()
{
if (!isRunning)
{
return;
}
sequencer.Dispose();
sequencer = null;
isRunning = false;
}