/// <summary>
/// Launches a background thread to listen for POSIX signals.
/// Exit on two signal 2's or one signal 15.
/// </summary>
static void InstallSignalHandler(RCRunner runner)
{
#if __MonoCS__
UnixSignal[] signals =
{
new UnixSignal(Mono.Unix.Native.Signum.SIGTERM),
new UnixSignal(Mono.Unix.Native.Signum.SIGINT)
};
Thread signalThread = new Thread(delegate()
{
while (true)
{
int index = UnixSignal.WaitAny(signals, -1);
if (index < 0)
{
continue;
}
Mono.Unix.Native.Signum signal = signals[index].Signum;
if (signal == Mono.Unix.Native.Signum.SIGTERM)
{
ThreadPool.QueueUserWorkItem(delegate(object state)
{
RCSystem.Log.Record(0, 0, "runner", 0, "signal", "SIGTERM");
runner.Abort(15);
});
}
else if (signal == Mono.Unix.Native.Signum.SIGINT)
{
if (!_firstSigint)
{
_firstSigint = true;
ThreadPool.QueueUserWorkItem(delegate(object state)
{
RCSystem.Log.Record(0, 0, "runner", 0, "signal", "SIGINT");
runner.Interupt();
});
}
else
{
ThreadPool.QueueUserWorkItem(delegate(object state)
{
RCSystem.Log.Record(0, 0, "runner", 0, "signal", "SIGINT (exiting)");
runner.Abort(2);
});
}
}
}
});
signalThread.IsBackground = true;
signalThread.Start();
#endif
}