匿名管道通讯实现

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// 生成bat文件 std::ofstream ofs("network_check.bat"); ofs << "@echo Webservice connect check begin" << std::endl; ofs << "@echo Webservice connect check end" << std::endl; ofs.close(); // 创建管道 SECURITY_ATTRIBUTES sa; sa.nLength = sizeof(SECURITY_ATTRIBUTES); sa.bInheritHandle = TRUE; sa.lpSecurityDescriptor = NULL; HANDLE hRead, hWrite; if (!CreatePipe(&hRead, &hWrite, &sa, 0)) {     DWORD dErr = GetLastError();     CString szInfo;     szInfo.Format(_T("Fail to Create Pipe Error: %d"), dErr);     outInfo = szInfo;     return FALSE; } // 创建进程 STARTUPINFO si = {sizeof(STARTUPINFO)}; si.hStdError = hWrite; si.hStdOutput = hWrite; si.wShowWindow = SW_HIDE; si.hStdInput = hRead; si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES; PROCESS_INFORMATION pi; CString strCmd = _T("cmd.exe /c network_check.bat"); if (!CreateProcess(NULL, strCmd.GetBuffer(), NULL, NULL, TRUE, NULL, NULL, NULL, &si, &pi)) {     outInfo = _T("CreateProcess failed");     CloseHandle(hWrite);     CloseHandle(hRead);     return FALSE; } // 读取管道信息 std::string strResult; char buff[1025] = {0}; while (1) {     DWORD dwRead = 0;     PeekNamedPipe(hRead, buff, 4, &dwRead, NULL, NULL);     if (0 == dwRead)     {         continue;     }     ZeroMemory(buff, sizeof(buff));     ReadFile(hRead, buff, 1024, &dwRead, NULL);     strResult += buff;     char* pStr = new char[strlen(buff) + 1];     strcpy_s(pStr, strlen(buff) + 1, buff);     ::SendMessage(m_hWnd, WM_MSG_TESTINFO, (WPARAM)pStr,0);     if (strResult.find("Webservice connect check end") != std::string::npos)     {         break;     } } // 释放资源 CloseHandle(hWrite); CloseHandle(hRead); CloseHandle(pi.hThread); CloseHandle(pi.hProcess);