これは、私が作成した小さなユーティリティ アプリのソース コードです (これは、非常に便利な Alan Hensel ソリューションに基づいています)。
これは ChildrenProcessKiller と呼ばれ、親プロセスが終了したときに (親プロセスがクラッシュした場合でも)、特定の親プロセスのすべての子孫プロセスを強制終了できるウォッチャーです。
使用法 :
ChildrenProcessKiller.exe parentProcessId
警告: このコードは「現状のまま」提供されており、小さな赤ちゃんを殺す可能性があります ;-)
ChildrenProcessKiller.cs
using System;
using System.Collections.Generic;
using System.Diagnostics;
namespace ChildrenProcessKiller
{
static class ChildrenProcessKiller
{
[STAThread]
static void Main(string[] args)
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
string message = "This is a watcher that enables to kill all descendants process of a given parent process\n";
message += "when the parent process exits (even if the parent process crashes) \n\n";
message += "Usage : " + Application.ExecutablePath + " parentProcessId";
if (args.Length != 1)
{
MessageBox.Show(message);
System.Environment.Exit(1);
}
int parentProcessId;
if (!Int32.TryParse(args[0], out parentProcessId))
{
MessageBox.Show(message);
System.Environment.Exit(1);
}
try
{
mParentProcess = Process.GetProcessById(parentProcessId);
}
catch (System.ArgumentException ex)
{
//Parent process cannot be found!
System.Environment.Exit(2);
}
Run();
}
private static List<Process> mChildrenProcesses;
private static Process mParentProcess;
private static void Run()
{
int thisProcessId = Process.GetCurrentProcess().Id;
while ( ! mParentProcess.HasExited )
{
RefreshChildrenProcesses();
System.Threading.Thread.Sleep(1000);
}
foreach (Process childProcess in mChildrenProcesses)
{
if ((!childProcess.HasExited) && (childProcess.Id != thisProcessId))
{
KillGracefullyThenViolently(childProcess);
}
}
}
private static void KillGracefullyThenViolently(Process process)
{
if (process.HasExited)
return;
try
{
process.CloseMainWindow();
}
catch (PlatformNotSupportedException)
{}
catch (InvalidOperationException)
{}//do nothing : this app is meant to be "unstoppable", unless the parent process has exited
for (int i = 0; i < 15; i++)
{
System.Threading.Thread.Sleep(100);
if (process.HasExited)
return;
}
try
{
process.Kill();
}
catch (System.ComponentModel.Win32Exception)
{}
catch(NotSupportedException)
{}
catch(InvalidOperationException)
{} //same comment here
}
private static void RefreshChildrenProcesses()
{
if (mParentProcess.HasExited)
return;
List<Process> newChildren;
try
{
newChildren = Utils.ProcessTree.GetProcessDescendants(mParentProcess);
mChildrenProcesses = newChildren;
}
catch (System.Exception ex)
{
;
}
}
}
}
ProcessTree.cs
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Collections.Generic;
using System.IO;
using System.Windows.Forms;
namespace Utils
{
public static class ProcessTree
{
public static List<Process> GetProcessDescendants(Process process)
{
List<Process> result = new List<Process>();
foreach (Process eachProcess in Process.GetProcesses())
{
if (ParentPid(eachProcess) == process.Id)
{
result.Add(eachProcess);
}
}
return result;
}
public static void KillDescendants(Process processToNotKillYet)
{
foreach (Process eachProcess in Process.GetProcesses())
{
if (ParentPid(eachProcess) == processToNotKillYet.Id)
{
if (eachProcess.Id != Process.GetCurrentProcess().Id)
KillTree(eachProcess);
}
}
}
public static void KillTree(Process processToKill)
{
KillDescendants(processToKill);
processToKill.Kill();
}
public static PROCESS_BASIC_INFORMATION Info(Process process)
{
PROCESS_BASIC_INFORMATION processInfo = new PROCESS_BASIC_INFORMATION();
try
{
uint bytesWritten;
NtQueryInformationProcess(process.Handle,
0,
ref processInfo,
(uint)Marshal.SizeOf(processInfo),
out bytesWritten); // == 0 is OK
}
catch (Win32Exception e)
{
if (!e.Message.Equals("Access is denied")) throw;
}
return processInfo;
}
public static int ParentPid(Process process)
{
return Info(process).ParentPid;
}
[DllImport("ntdll.dll")]
private static extern int NtQueryInformationProcess(
IntPtr hProcess,
int processInformationClass /* 0 */,
ref PROCESS_BASIC_INFORMATION processBasicInformation,
uint processInformationLength,
out uint returnLength);
[StructLayout(LayoutKind.Sequential)]
public struct PROCESS_BASIC_INFORMATION
{
public int ExitStatus;
public int PebBaseAddress;
public int AffinityMask;
public int BasePriority;
public int Pid;
public int ParentPid;
}
}
}