private void Process()
{
var command = queue.Pop(delay, new Command {
Action = idle
});
if (command.Quit)
{
quit = true;
}
if (command.Handler == null)
{
command.Handler = handler;
}
if (command.Action != null)
{
try
{
command.Action();
}
catch (Exception ex)
{
command.Handler?.Invoke(ex);
}
}
}
//must keep returning null after reader closed
//to ensure next readline returns null after nested reads
public string ReadLine()
{
if (closed)
{
return(null);
}
var line = queue.Pop(1, null);
while (line == null)
{
line = queue.Pop(1, null);
}
if (line == Environ.NewLines)
{
closed = true;
}
if (line == Environ.NewLines)
{
return(null);
}
return(line);
}
public static void Interactive(IStream io, Args args)
{
var thread = Thread.CurrentThread.Name;
var reader = new Runner(new Runner.Args()
{
ThreadName = string.Format("{0}_R", thread)
});
var erroer = new Runner(new Runner.Args()
{
ThreadName = string.Format("{0}_W", thread)
});
using (reader)
using (erroer)
{
var process = new DaemonProcess(args);
//eof below must close process immediatelly
//to ensure exited message happens after real exit
using (process)
{
io.WriteLine("Process {0} has started", process.Id);
var queue = new LockedQueue <bool>();
reader.Run(() =>
{
var line = process.ReadLine();
while (line != null)
{
Logger.Trace("<o:{0} {1}", process.Id, line);
io.WriteLine(line);
line = process.ReadLine();
}
Logger.Trace("<o:{0} EOF", process.Id);
});
reader.Run(() => queue.Push(true));
erroer.Run(() =>
{
var line = process.ReadError();
while (line != null)
{
Logger.Trace("<e:{0} {1}", process.Id, line);
line = process.ReadError();
}
Logger.Trace("<e:{0} EOF", process.Id);
});
erroer.Run(() => queue.Push(true));
while (true)
{
//non blocking readline needed to notice reader exit
var line = io.TryReadLine(out var eof);
if (eof)
{
Logger.Trace("EOF input > process");
}
if (eof)
{
break;
}
if (line != null)
{
Logger.Trace("i:{0}> {1}", process.Id, line);
process.WriteLine(line);
}
if (queue.Pop(1, false))
{
break;
}
}
}
//previous loop may swallow exit! by feeding it to process
//unit test should wait for syncing message below before exit!
io.WriteLine("Process {0} has exited", process.Id);
}
}