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匿名管道通讯实现

2019年02月20日  | 移动技术网IT编程  | 我要评论

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	// 生成bat文件
	std::ofstream ofs("network_check.bat");
	ofs << "@echo 360os webservice connect check begin" << std::endl;
	ofs << "@echo 360os 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("360os webservice connect check end") != std::string::npos)
		{
			break;
		}
	}
	// 释放资源
	closehandle(hwrite);
	closehandle(hread);
	closehandle(pi.hthread);
	closehandle(pi.hprocess);

　　

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