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Fix for concurrent child processes while using pipes for IPC.

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This commit is contained in:
Matthew Bowra-Dean
2011-01-04 14:23:46 +13:00
parent c8a74ef05a
commit fb8812a7fd
5 changed files with 31 additions and 15 deletions
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10
OpenRA.Launcher/Download.cs
View File

@@ -107,10 +107,11 @@ namespace OpenRA.Launcher
string[] args = e.Argument as string[];
string url = args[0];
string dest = args[1];
var p = UtilityProgram.Call("--download-url", url, dest);
string pipename = UtilityProgram.GetPipeName();
var p = UtilityProgram.Call("--download-url", pipename, url, dest);
Regex r = new Regex(@"(\d{1,3})% (\d+)/(\d+) bytes");
NamedPipeClientStream pipe = new NamedPipeClientStream(".", "OpenRA.Utility", PipeDirection.In);
NamedPipeClientStream pipe = new NamedPipeClientStream(".", pipename, PipeDirection.In);
pipe.Connect();
using (var response = new StreamReader(pipe))
@@ -176,8 +177,9 @@ namespace OpenRA.Launcher
string zipFile = args[0];
string destPath = args[1];
var p = UtilityProgram.CallWithAdmin("--extract-zip", zipFile, destPath);
var pipe = new NamedPipeClientStream(".", "OpenRA.Utility", PipeDirection.In);
string pipename = UtilityProgram.GetPipeName();
var p = UtilityProgram.CallWithAdmin("--extract-zip", pipename, zipFile, destPath);
var pipe = new NamedPipeClientStream(".", pipename, PipeDirection.In);
pipe.Connect();

1
OpenRA.Launcher/Launcher.Designer.cs generated
View File

@@ -150,6 +150,7 @@
this.Name = "Launcher";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
this.Text = "OpenRA Launcher";
this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.formClosing);
this.splitContainer1.Panel1.ResumeLayout(false);
this.splitContainer1.Panel2.ResumeLayout(false);
this.splitContainer1.ResumeLayout(false);

10
OpenRA.Launcher/Launcher.cs
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@@ -112,8 +112,9 @@ namespace OpenRA.Launcher
private void InstallMod(object sender, EventArgs e)
{
if (installModDialog.ShowDialog() != DialogResult.OK) return;
var p = UtilityProgram.CallWithAdmin("--extract-zip", installModDialog.FileName, "");
var pipe = new NamedPipeClientStream(".", "OpenRA.Utility", PipeDirection.In);
string pipename = UtilityProgram.GetPipeName();
var p = UtilityProgram.CallWithAdmin("--extract-zip", pipename, installModDialog.FileName, "");
var pipe = new NamedPipeClientStream(".", pipename, PipeDirection.In);
pipe.Connect();
p.WaitForExit();
@@ -199,5 +200,10 @@ namespace OpenRA.Launcher
else
Renderer = "Cg";
}
void formClosing(object sender, FormClosingEventArgs e)
{
}
}
}

18
OpenRA.Launcher/UtilityProgram.cs
View File

@@ -56,6 +56,11 @@ namespace OpenRA.Launcher
static class UtilityProgram
{
public static string GetPipeName()
{
return "OpenRA.Utility" + Guid.NewGuid().ToString();
}
static string BuildArgs(string command, string[] args)
{
StringBuilder arguments = new StringBuilder();
@@ -66,11 +71,11 @@ namespace OpenRA.Launcher
return arguments.ToString();
}
public static Process Call(string command, params string[] args)
public static Process Call(string command, string pipename, params string[] args)
{
Process p = new Process();
p.StartInfo.FileName = "OpenRA.Utility.exe";
p.StartInfo.Arguments = BuildArgs(command, args) + " --pipe";
p.StartInfo.Arguments = BuildArgs(command, args) + " --pipe=" + pipename;
p.StartInfo.UseShellExecute = false;
p.StartInfo.CreateNoWindow = true;
@@ -81,9 +86,10 @@ namespace OpenRA.Launcher
public static string CallSimpleResponse(string command, params string[] args)
{
Call(command, args);
string pipename = GetPipeName();
Call(command, pipename, args);
string responseString;
NamedPipeClientStream pipe = new NamedPipeClientStream(".", "OpenRA.Utility", PipeDirection.In);
NamedPipeClientStream pipe = new NamedPipeClientStream(".", pipename, PipeDirection.In);
pipe.Connect();
using (var response = new StreamReader(pipe))
{
@@ -93,11 +99,11 @@ namespace OpenRA.Launcher
return responseString;
}
public static Process CallWithAdmin(string command, params string[] args)
public static Process CallWithAdmin(string command, string pipename, params string[] args)
{
Process p = new Process();
p.StartInfo.FileName = "OpenRA.Utility.exe";
p.StartInfo.Arguments = BuildArgs(command, args) + " --pipe";
p.StartInfo.Arguments = BuildArgs(command, args) + " --pipe=" + pipename;
p.StartInfo.Verb = "runas";
try

7
OpenRA.Utility/Program.cs
View File

@@ -46,9 +46,10 @@ namespace OpenRA.Utility
var arg = SplitArgs(args[0]);
bool piping = false;
if (args.Length > 1 && args[1] == "--pipe")
if (args.Length > 1 && SplitArgs(args[1]).Key == "--pipe")
{
piping = true;
string pipename = SplitArgs(args[1]).Value;
NamedPipeServerStream pipe;
var id = WindowsIdentity.GetCurrent();
var principal = new WindowsPrincipal(id);
@@ -56,10 +57,10 @@ namespace OpenRA.Utility
{
var ps = new PipeSecurity();
ps.AddAccessRule(new PipeAccessRule("EVERYONE", (PipeAccessRights)2032031, System.Security.AccessControl.AccessControlType.Allow));
pipe = new NamedPipeServerStream("OpenRA.Utility", PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.None, 1024, 1024, ps);
pipe = new NamedPipeServerStream(pipename, PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.None, 1024, 1024, ps);
}
else
pipe = new NamedPipeServerStream("OpenRA.Utility", PipeDirection.Out);
pipe = new NamedPipeServerStream(pipename, PipeDirection.Out);
pipe.WaitForConnection();
Console.SetOut(new StreamWriter(pipe) { AutoFlush = true });