public void Start(string hostId, Action<int> onConnected)
{
lock (_processLock)
{
if (_stopped)
{
return;
}
int port = GetFreePort();
var psi = new ProcessStartInfo
{
FileName = _paths.Dnx ?? _paths.Klr,
CreateNoWindow = true,
UseShellExecute = false,
RedirectStandardError = true,
Arguments = string.Format(@"""{0}"" {1} {2} {3}",
Path.Combine(_paths.RuntimePath.Value, "bin", "lib", "Microsoft.Framework.DesignTimeHost", "Microsoft.Framework.DesignTimeHost.dll"),
port,
Process.GetCurrentProcess().Id,
hostId),
};
#if DNX451
psi.EnvironmentVariables["KRE_APPBASE"] = Directory.GetCurrentDirectory();
psi.EnvironmentVariables["DNX_APPBASE"] = Directory.GetCurrentDirectory();
#else
psi.Environment["KRE_APPBASE"] = Directory.GetCurrentDirectory();
psi.Environment["DNX_APPBASE"] = Directory.GetCurrentDirectory();
#endif
_logger.LogVerbose(psi.FileName + " " + psi.Arguments);
_designTimeHostProcess = Process.Start(psi);
// Wait a little bit for it to conncet before firing the callback
using (var socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
{
var t1 = DateTime.UtcNow;
var dthTimeout = TimeSpan.FromSeconds(4);
while (!socket.Connected && DateTime.UtcNow - t1 < dthTimeout)
{
Thread.Sleep(500);
try
{
socket.Connect(new IPEndPoint(IPAddress.Loopback, port));
}
catch (SocketException)
{
// this happens when the DTH isn't listening yet
}
}
}
if (_designTimeHostProcess.HasExited)
{
// REVIEW: Should we quit here or retry?
_logger.LogError(string.Format("Failed to launch DesignTimeHost. Process exited with code {0}.", _designTimeHostProcess.ExitCode));
return;
}
_logger.LogInformation(string.Format("Running DesignTimeHost on port {0}, with PID {1}", port, _designTimeHostProcess.Id));
_designTimeHostProcess.EnableRaisingEvents = true;
_designTimeHostProcess.OnExit(() =>
{
_logger.LogWarning("Design time host process ended");
Start(hostId, onConnected);
});
onConnected(port);
}
}
public void Start(string hostId, Action<int> onConnected)
{
lock (_processLock)
{
if (_stopped)
{
return;
}
int port = GetFreePort();
string runtimePath = _paths.RuntimePath.Value;
// This gets the folder name (e.g. dnx-mono.1.0.0-beta5 or dnx-clr-x86.1.0.0-beta5)
var fullName = DnxSdk.GetRuntimeNameFromFullPath(runtimePath);
string flavor;
string os;
string arch;
string version;
if (DnxSdk.TryParseFullName(fullName, out flavor, out os, out arch, out version) &&
string.Equals(flavor, "coreclr", StringComparison.OrdinalIgnoreCase) &&
!string.Equals(os, "win", StringComparison.OrdinalIgnoreCase))
{
// Work around since DTH is broken on CoreCLR on *nix and OSX
var runtimeName = DnxSdk.GetFullName(version, "mono", os, arch);
runtimePath = Path.Combine(Path.GetDirectoryName(runtimePath), runtimeName);
_logger.LogInformation("Using '{0}' for design time host.", runtimePath);
}
var dthPath = Path.Combine(runtimePath, "bin", "lib", "Microsoft.Dnx.DesignTimeHost", "Microsoft.Dnx.DesignTimeHost.dll");
// TODO: This is for backcompat. Once the dust settles, and MS.Framework.DTH goes away, remove this.
if (!File.Exists(dthPath))
{
dthPath = Path.Combine(runtimePath, "bin", "lib", "Microsoft.Framework.DesignTimeHost", "Microsoft.Framework.DesignTimeHost.dll");
}
var dnx = DnxPaths.FirstPath(runtimePath, "dnx", "dnx.exe");
var klr = DnxPaths.FirstPath(runtimePath, "klr", "klr.exe");
var psi = new ProcessStartInfo
{
FileName = dnx ?? klr,
CreateNoWindow = true,
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
Arguments = string.Format(@"""{0}"" {1} {2} {3}",
dthPath,
port,
Process.GetCurrentProcess().Id,
hostId),
};
#if DNX451
psi.EnvironmentVariables["KRE_APPBASE"] = Directory.GetCurrentDirectory();
psi.EnvironmentVariables["DNX_APPBASE"] = Directory.GetCurrentDirectory();
#else
psi.Environment["KRE_APPBASE"] = Directory.GetCurrentDirectory();
psi.Environment["DNX_APPBASE"] = Directory.GetCurrentDirectory();
#endif
_logger.LogDebug(psi.FileName + " " + psi.Arguments);
_designTimeHostProcess = new Process();
_designTimeHostProcess.StartInfo = psi;
_designTimeHostProcess.OutputDataReceived += (sender, args) => this._logger.LogInformation(args.Data ?? string.Empty);
this._designTimeHostProcess.Start();
this._designTimeHostProcess.BeginOutputReadLine();
// Wait a little bit for it to conncet before firing the callback
using (var socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
{
var t1 = DateTime.UtcNow;
var dthTimeout = TimeSpan.FromSeconds(30);
while (!socket.Connected && DateTime.UtcNow - t1 < dthTimeout)
{
Thread.Sleep(500);
try
{
socket.Connect(new IPEndPoint(IPAddress.Loopback, port));
}
catch (SocketException)
{
// this happens when the DTH isn't listening yet
}
}
if (!socket.Connected)
{
// reached timeout
_logger.LogError("Failed to launch DesignTimeHost in a timely fashion.");
return;
}
}
if (_designTimeHostProcess.HasExited)
{
// REVIEW: Should we quit here or retry?
_logger.LogError(string.Format("Failed to launch DesignTimeHost. Process exited with code {0}.", _designTimeHostProcess.ExitCode));
return;
}
_logger.LogInformation(string.Format("Running DesignTimeHost on port {0}, with PID {1}", port, _designTimeHostProcess.Id));
_designTimeHostProcess.EnableRaisingEvents = true;
_designTimeHostProcess.OnExit(() =>
{
_logger.LogWarning("Design time host process ended");
Start(hostId, onConnected);
});
onConnected(port);
}
}
