windows 多进调用 交互命令行

实时获取命令行输出 ，appendLine 需要 processEvents 强制刷新，不是不能实时更新

extern QApplication* pa;
void Window::appendLine(QString str){
    logTxt->append(str);
    pa->processEvents();

}

std::string ExeVlcCmd(wstring szIperfCmd)
{
    //创建匿名管道
    SECURITY_ATTRIBUTES sa = { sizeof(SECURITY_ATTRIBUTES), NULL, TRUE };
    HANDLE hRead, hWrite;
    if (!CreatePipe(&hRead, &hWrite, &sa, 0)){
        return ("");
    }

    //设置命令行进程启动信息(以隐藏方式启动命令并定位其输出到hWrite)
    STARTUPINFO si = { sizeof(STARTUPINFO) };
    GetStartupInfo(&si);
    si.dwFlags = /*STARTF_USESHOWWINDOW | */STARTF_USESTDHANDLES;
    si.wShowWindow = SW_HIDE;//SW_SHOWNORMAL;//SW_SHOWNORMAL;//SW_HIDE;//
    si.hStdError = hWrite;
    si.hStdOutput = hWrite;

    //启动命令行
    PROCESS_INFORMATION pi;
    if (!CreateProcess(NULL, (TCHAR *)szIperfCmd.c_str(), NULL, NULL, TRUE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi)){
    //if (!CreateProcess(NULL, (TCHAR *)szIperfCmd.c_str(), NULL, NULL, TRUE, NULL, NULL, NULL, &si, &pi)){
    //if (!CreateProcess(NULL, (TCHAR *)szIperfCmd.c_str(), NULL, NULL, TRUE, CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi)){
        return ("");
    }

    //立即关闭hWrite
    CloseHandle(hWrite);

    //读取命令行返回值
    std::string strRet;
    char buff[1024] = { 0 };
    DWORD dwRead = 0;

    while (ReadFile(hRead, buff, 1024, &dwRead, NULL)){
        strRet.append(buff, dwRead);

        QString qstr1 = qstr1.fromStdString(buff);
        pwindow->appendLine(qstr1);
    }
    CloseHandle(hRead);

    gStrRet = strRet;
        
    QString qstr = qstr.fromStdString(gStrRet);
    pwindow->appendLine(qstr);
    pwindow->analyseRetStr(gStrRet);
    return strRet;
}

交互命令行的，能输出和输入的

http://www.cppblog.com/aaxron/archive/2016/05/27/213597.html

BOOL CNeowayAndroidCheckToolView::PipeSendCmd(const HANDLE& handle,LPCTSTR cmd)
{
    CString _cmd(cmd);
    BOOL bRet;
    DWORD dwWrited;

    _cmd.Append("\r\n");    
    return WriteFile(handle,_cmd,_cmd.GetLength(),&dwWrited,NULL);
}
BOOL CNeowayAndroidCheckToolView::PipeRead(const HANDLE& handle,CString& result,DWORD dwMilliseconds)
{
    BOOL bRet = FALSE;
    CHAR buffer[4100];
    DWORD dwReaded;

    result.Empty();
    while(1)
    {
        Sleep(dwMilliseconds);
        bRet = PeekNamedPipe(handle,buffer,1,&dwReaded,NULL,NULL);
        if (!bRet) goto _flag_exit;
        if (dwReaded>0)
        {
            bRet = ReadFile(handle, buffer,4096, &dwReaded, NULL);
            if (!bRet) goto _flag_exit;
            buffer[dwReaded] = '\0';
            result += buffer;
        }else {
            break;
        }
    }
_flag_exit:
    return bRet;
}
BOOL CNeowayAndroidCheckToolView::TestGpio()
{
    CString init_cmd = Path::Combine( Path::GetAppDirectory(),"adb.exe shell");
    //CString init_cmd = "cmd.exe";
    CString cmd;
    CString result;
    DWORD exit_code = -1;
    STARTUPINFO si;
    PROCESS_INFORMATION pi;
    HANDLE hStdOutRead=NULL, hStdOutPipe=NULL;
    HANDLE hStdInWrite=NULL, hStdInPipe=NULL;
    SECURITY_ATTRIBUTES saRead,saWrite;
    BOOL bRet;
    BOOL bSucceed;    
    DWORD dwReaded;
    std::vector<CString> lines;

    saRead.nLength = sizeof(SECURITY_ATTRIBUTES);
    saRead.bInheritHandle = TRUE;
    saRead.lpSecurityDescriptor = NULL;
    saWrite = saRead;

    bRet = CreatePipe(&hStdOutRead, &hStdOutPipe, &saRead, 4096);
    if (!bRet)
        goto _flag_exit;
    bRet = CreatePipe(&hStdInPipe, &hStdInWrite, &saWrite, 4096);
    if (!bRet)
        goto _flag_exit;

    memset(&si, 0, sizeof(si));
    si.cb = sizeof(si);
    si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
    si.wShowWindow = SW_HIDE;
    si.hStdOutput = hStdOutPipe;
    si.hStdInput  = hStdInPipe;

    bRet = CreateProcess(NULL, (LPSTR)(LPCTSTR)init_cmd, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi);
    if (!bRet) goto _flag_exit;
        

    CloseHandle(hStdOutPipe);hStdOutPipe = NULL;
    CloseHandle(hStdInPipe);hStdInPipe = NULL;

    bRet = PipeRead(hStdOutRead,result,50);
    if (!bRet) goto _flag_exit;

    PipeSendCmd(hStdInWrite,"cd sys/gpio_test");
    if (!bRet) goto _exit_adb;

    bRet = PipeRead(hStdOutRead,result,50);
    if (!bRet) goto _exit_adb;

    PipeSendCmd(hStdInWrite,"echo \"1\" > start");
    if (!bRet) goto _exit_adb;

    bRet = PipeRead(hStdOutRead,result,50);
    if (!bRet) goto _exit_adb;

    PipeSendCmd(hStdInWrite,"cat result");
    if (!bRet) goto _exit_adb;

    bRet = PipeRead(hStdOutRead,result,50);
    if (!bRet) goto _exit_adb;

    bRet = (result.Find("OK")>=0);
_exit_adb:
    if (!PipeSendCmd(hStdInWrite,"exit")) {
        bRet = FALSE; goto _flag_exit;
    }

    WaitForSingleObject( pi.hProcess, 5000);

    if (!GetExitCodeProcess(pi.hProcess, &exit_code)) {
        bRet = FALSE; goto _flag_exit;
    }
    bRet = bRet && (exit_code==0);
_flag_exit:
    if  (hStdOutRead!=NULL)
        CloseHandle(hStdOutRead);
    if  (hStdOutPipe!=NULL)
        CloseHandle(hStdOutPipe);
    if  (hStdInWrite!=NULL)
        CloseHandle(hStdInWrite);
    if  (hStdInPipe!=NULL)
        CloseHandle(hStdInPipe);
    return bRet;
}