我可以暂停一个进程，除了一个线程？ [英] Can I suspend a process except one thread?

问题描述

我将暂停（或暂停）一个进程，除了一个线程。

I'm going to suspend(or pause) a process except one thread.

我试图使用SuspendThread（Api函数），结果是进程线程成为不负责任的状态。

I've tried to use SuspendThread(Api Function) and the result is process thread was became non-responsable status.

这不是我想要的。我想让简历一线，我必须做大的工作。

This is not what I wanted. I want to make resume one thread which I must do major work.

我该如何解决？请给出你的想法。

How can I solve this? Please give your idea.

谢谢。

推荐答案

CreateToolhelp32Snapshot 来获取属于进程的线程列表。一旦你有这个列表只是迭代，并暂停每个线程，不符合当前的线程ID。下面的示例是未经测试的，但应该可以正常工作。

You can call CreateToolhelp32Snapshot to get a list of threads belonging to a process. Once you have that list just iterate though it and suspend every thread that doesn't match the current thread ID. The example below is untested but should work just fine.

#include <windows.h>
#include <tlhelp32.h>

// Pass 0 as the targetProcessId to suspend threads in the current process
void DoSuspendThread(DWORD targetProcessId, DWORD targetThreadId)
{
    HANDLE h = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
    if (h != INVALID_HANDLE_VALUE)
    {
        THREADENTRY32 te;
        te.dwSize = sizeof(te);
        if (Thread32First(h, &te))
        {
            do
            {
                if (te.dwSize >= FIELD_OFFSET(THREADENTRY32, th32OwnerProcessID) + sizeof(te.th32OwnerProcessID)) 
                {
                    // Suspend all threads EXCEPT the one we want to keep running
                    if(te.th32ThreadID != targetThreadId && te.th32OwnerProcessID == targetProcessId)
                    {
                        HANDLE thread = ::OpenThread(THREAD_ALL_ACCESS, FALSE, te.th32ThreadID);
                        if(thread != NULL)
                        {
                            SuspendThread(thread);
                            CloseHandle(thread);
                        }
                    }
                }
                te.dwSize = sizeof(te);
            } while (Thread32Next(h, &te));
        }
        CloseHandle(h);    
    }
}

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