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DreamDaemon is now suspended while symswap happens (#54)

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* DreamDaemon is now suspended while symswap happens

* Fix
This commit is contained in:
Jordan Brown
2017-06-29 14:35:47 -04:00
committed by GitHub
parent d2fc735c35
commit 4ccd3e09b8
3 changed files with 69 additions and 12 deletions
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TGServerService/ProcessExtension.cs
+55
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@@ -0,0 +1,55 @@
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace TGServerService
{
//lightly massaged code from https://stackoverflow.com/a/13109774
public static class ProcessExtension
{
enum ThreadAccess : int
{
TERMINATE = (0x0001),
SUSPEND_RESUME = (0x0002),
GET_CONTEXT = (0x0008),
SET_CONTEXT = (0x0010),
SET_INFORMATION = (0x0020),
QUERY_INFORMATION = (0x0040),
SET_THREAD_TOKEN = (0x0080),
IMPERSONATE = (0x0100),
DIRECT_IMPERSONATION = (0x0200)
}
[DllImport("kernel32.dll")]
static extern IntPtr OpenThread(ThreadAccess dwDesiredAccess, bool bInheritHandle, uint dwThreadId);
[DllImport("kernel32.dll")]
static extern bool CloseHandle(IntPtr hObject);
[DllImport("kernel32.dll")]
static extern uint SuspendThread(IntPtr hThread);
[DllImport("kernel32.dll")]
static extern int ResumeThread(IntPtr hThread);
public static void Suspend(this Process process)
{
foreach (ProcessThread thread in process.Threads)
{
var pOpenThread = OpenThread(ThreadAccess.SUSPEND_RESUME, false, (uint)thread.Id);
if (pOpenThread == IntPtr.Zero)
continue;
SuspendThread(pOpenThread);
CloseHandle(pOpenThread);
}
}
public static void Resume(this Process process)
{
foreach (ProcessThread thread in process.Threads)
{
var pOpenThread = OpenThread(ThreadAccess.SUSPEND_RESUME, false, (uint)thread.Id);
if (pOpenThread == IntPtr.Zero)
continue;
ResumeThread(pOpenThread);
CloseHandle(pOpenThread);
}
}
}
}