/// <summary>
/// Attempts to load the specified process into a debugger using the specified debug engine
/// and the best debugger available.
/// If any instance of Visual Studio process is already associated with the current
/// (calling) process, then that instance's debugger is targetd.
/// Otherwise, the any first instance of Visual Studio is targetd.
/// </summary>
/// <param name="subjectProcessId">Id of the process to be debugged.</param>
/// <param name="debugEngine">Name of the debugger script engine to use e.g. "script" or "native" or "managed".</param>
public static void DebugAttachToProcess(int subjectProcessId, string debugEngine)
{
// Register COM message filter on this thd to enforce a call retry policy
// should our COM calls into the DTE (in another apartment) be rejected.
using (var mf = new ResilientMessageFilterScope())
{
EnvDTE.DTE dte = GetAllDTEs().FirstOrDefault(x => ProcessExtensions.IsProcessAAncestorOfProcessB(x.Key, Process.GetCurrentProcess().Id)).Value;
if (dte == null)
{
dte = GetAllDTEs().FirstOrDefault().Value;
}
IEnumerable <EnvDTE.Process> processes = dte.Debugger.LocalProcesses.OfType <EnvDTE.Process>();
EnvDTE.Process process = processes.SingleOrDefault(x => x.ProcessID == subjectProcessId);
// A.
if (process != null)
{
EnvDTE80.Process2 p2 = (EnvDTE80.Process2)process;
p2.Attach2(debugEngine);
}
// B.
else
{
throw new InvalidOperationException("Unable to debug the process: Visual Studio debugger not found.");
// TODO: spin up an instance of Visual Studio in this case?
}
}
}
private static bool TryAttach(EnvDTE80.Process2 process, string[] engines)
{
try
{
process.Attach2(engines);
return(true);
}
catch
{
return(false);
}
}
private void AttachToW3wp(List <int> currentWorkerProcess)
{
EnvDTE80.Debugger2 dbg2 = _applicationObject.Debugger as EnvDTE80.Debugger2;
EnvDTE80.Transport transport = dbg2.Transports.Item("Default");
EnvDTE80.Engine dbgEngine = null;
string targetVersion = GetFrameworkVersion();
Trace.WriteLine("Attach Debug Engine: " + targetVersion);
foreach (EnvDTE80.Engine item in transport.Engines)
{
if (item.Name.IndexOf(targetVersion) != -1)
{
dbgEngine = item;
break;
}
}
if (dbgEngine == null)
{
ShowMessage("Can't determine project's TargetFrameworkVersion - " + targetVersion);
return;
}
Trace.WriteLine("Debug Engine Type: " + dbgEngine.Name);
EnvDTE80.Process2 w3wpProcess = null;
foreach (var proc in dbg2.LocalProcesses)
{
EnvDTE80.Process2 process = proc as EnvDTE80.Process2;
if (process == null)
{
continue;
}
// Skip process in recycle.
if (currentWorkerProcess.Contains(process.ProcessID) == true)
{
continue;
}
if (process.Name.IndexOf("W3WP.EXE", 0, StringComparison.OrdinalIgnoreCase) != -1)
{
w3wpProcess = process;
break;
}
}
if (w3wpProcess != null)
{
bool attached = false;
string txt = string.Format("{0}({1})", w3wpProcess.Name, w3wpProcess.ProcessID);
System.Diagnostics.Trace.WriteLine("Attaching to: " + txt);
try
{
// I don't know why Attach2 method hang
// when Visual Studio 2013 try to attach w3wp.exe hosting .NET 2.0/3.0/3.5 Web Application.
if (targetVersion == "v2.0")
{
w3wpProcess.Attach();
}
else
{
w3wpProcess.Attach2(dbgEngine);
}
attached = true;
System.Diagnostics.Trace.WriteLine("Attached to: " + txt);
}
catch
{
}
if (attached == true)
{
string startupUrl = GetProjectItemValue("WebApplication.IISUrl");
if (string.IsNullOrEmpty(startupUrl) == false)
{
RunInternetExplorer(startupUrl);
}
}
}
else
{
ShowMessage("Make sure the AppPool's Start Mode is AlwaysRunning");
}
}