95 lines
3.0 KiB
Plaintext
95 lines
3.0 KiB
Plaintext
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// ----------------------------------------------------------------------------
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// ----------------------------------------------------------------------------
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using System;
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//using System.Threading;
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using Microsoft.SingSharp;
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using Microsoft.Singularity;
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using Microsoft.Singularity.Channels;
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using Microsoft.Singularity.Test.Contracts;
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using Microsoft.Singularity.Xml;
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using FileSystem.Utils;
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using Microsoft.Singularity.Applications;
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using Microsoft.Singularity.Io;
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//using System.Collections;
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using Microsoft.Singularity.V1.Services;
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using Microsoft.SingSharp.Reflection;
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using Microsoft.Singularity.Directory;
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using Microsoft.Contracts;
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namespace Microsoft.Singularity.Applications
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{
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public class ProcessLauncher {
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internal static Process CreateSubProcess(
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Parameters! config,
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string[] args
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)
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{
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DirectoryServiceContract.Imp ds = config.nsRef.Acquire();
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if (ds == null) {
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throw new Exception("Unable to acquire handle to the Directory Service root");
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}
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ds.RecvSuccess();
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PipeMultiplexer outputMux = MuxOut();
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if (outputMux == null) {
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delete ds;
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return null;
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}
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Manifest manifest;
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Process child = Binder.CreateProcess(ds, args, outputMux, out manifest);
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if (child == null) {
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Console.WriteLine("Error creating process");
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DebugStub.Print("Error creating process");
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outputMux.Dispose();
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delete ds;
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return null;
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}
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child.Start();
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child.Join();
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outputMux.Dispose();
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delete ds;
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if (null == child) {
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return null;
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}
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// Allow the caller to the get childs exit status
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return child;
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}
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// Redirect our standard output into a multiplexer so we can interleave
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// output from child processes
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static private PipeMultiplexer MuxOut()
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{
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// Swap our real stdOut with a newly created one
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UnicodePipeContract.Exp! newOutputExp;
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UnicodePipeContract.Imp! newOutputImp;
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UnicodePipeContract.NewChannel(out newOutputImp, out newOutputExp);
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UnicodePipeContract.Imp stdOut = ConsoleOutput.Swap(newOutputImp);
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if (stdOut == null) {
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// TODO may not require stdout once we report to debugStub
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Console.WriteLine("test expects a STDOUT pipe");
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delete newOutputExp;
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return null;
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}
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// Use a mux to splice our own output together with the child
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// processes we will run.
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return PipeMultiplexer.Start(stdOut, newOutputExp);
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}
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}
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}
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