public static async Task<ReactiveProcess> StartAsync(string fileName, string arguments) {
var p = new ReactiveProcess {StartInfo = new ProcessStartInfo(fileName, arguments)};
try {
await p.StartAsync().ConfigureAwait(false);
} catch {
p.Dispose();
throw;
}
return p;
}
async Task<ProcessExitResult> LaunchAndWaitForExitAsync(ReactiveProcess process, TimeSpan? monitorOutput,
TimeSpan? monitorResponding, CancellationToken token) {
var task = process.StartAsync();
_launched.OnNext(Tuple.Create(process.StartInfo, process.Id));
using (SetupMonitoringDisposable(process, monitorOutput, monitorResponding))
using (token.Register(process.Kill))
await task.ConfigureAwait(false);
_terminated.OnNext(Tuple.Create(process.StartInfo, process.ExitCode, process.Id));
return new ProcessExitResult(process.ExitCode, process.Id, process.StartInfo);
}
static void SetupStandardOutput(LaunchAndProcessInfo info, ReactiveProcess process) {
if (info.StandardOutputAction == null)
return;
if (!info.StartInfo.RedirectStandardOutput)
throw new InvalidOperationException("Not redirected output");
process.StandardOutputObservable.Subscribe(data => info.StandardOutputAction(process, data));
}
public async Task<ProcessExitResult> LaunchAndProcessAsync(LaunchAndProcessInfo info) {
using (var process = new ReactiveProcess {StartInfo = info.StartInfo.EnableRedirect()}) {
SetupStandardOutput(info, process);
SetupStandardError(info, process);
return
await
LaunchAndWaitForExitAsync(process, info.MonitorOutput, info.MonitorResponding,
info.CancellationToken)
.ConfigureAwait(false);
}
}
public async Task<ProcessExitResult> LaunchAsync(BasicLaunchInfo info) {
using (var process = new ReactiveProcess {StartInfo = info.StartInfo}) {
return
await
LaunchAndWaitForExitAsync(process, info.MonitorOutput, info.MonitorResponding,
info.CancellationToken)
.ConfigureAwait(false);
}
}
Timer MonitorProcessOutput(ReactiveProcess process, TimeSpan timeout) {
Contract.Requires<ArgumentNullException>(process != null);
Contract.Requires<ArgumentNullException>(timeout != null);
var state = process.MonitorProcessOutput();
_monitorStarted.OnNext(Tuple.Create(process.StartInfo, process.Id, "Output"));
return new TimerWithElapsedCancellation(MonitorInterval,
() => OnOutputMonitorElapsed(process, state, timeout),
(o, args) => _monitorStopped.OnNext(Tuple.Create(process.StartInfo, process.Id, "Output")));
}
CompositeDisposable SetupMonitoringDisposable(ReactiveProcess process, TimeSpan? monitorOutput,
TimeSpan? monitorResponding) {
var disposable = new CompositeDisposable();
if (monitorOutput.HasValue)
disposable.Add(MonitorProcessOutput(process, monitorOutput.Value));
if (monitorResponding.HasValue)
disposable.Add(MonitorProcessResponding(process, monitorResponding.Value));
return disposable;
}