如何在 Windows 7 中运行的 python 2.5 中设置保持活动计时器 [英] How to set keep-alive timer in python 2.5 running in Windows 7

问题描述

我需要一些帮助.我正在开发使用在 Windows7 上运行的 python 2.5.4 的旧软件，我需要在我的套接字连接中启用 keepalive.

I need some help. I'm working on a legacy software that uses python 2.5.4 running on Windows7 and I need to enable keepalives in my socket connection.

我在下面的线程中看到您可以使用

I've seen in the thread below that you can enable keepalives in python using

object.setsockopt( socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)

但是，此设置使用默认的 2 小时 Windows 保持活动计时器.

However this setup uses the default windows keep alive timer of 2 hours.

我还看到我们可以使用以下 API 设置计时器，但它仅适用于 Python 2.6 及更高版本.

I've also seen that we can set the timer using the following API, however it is only available for Python 2.6 onwards.

sock.ioctl(socket.SIO_KEEPALIVE_VALS, (1, 10000, 3000))

无论如何我可以使用 python 2.5.4 设置这个 SIO_KEEPALIVE_VALS 吗?我的遗留代码也有模块 pywin32-214.我真的无法升级python版本.

Is there anyway I can set this SIO_KEEPALIVE_VALS using python 2.5.4 ? The legacy code I have also has the module pywin32-214. I really can't upgrade the python version.

我也想知道python2.6及更新版本如何调用windows api

I also wonder how python2.6 and newer calls the windows api

int WSAIoctl(
  (socket) s,              // descriptor identifying a socket
  SIO_KEEPALIVE_VALS,                  // dwIoControlCode
  (LPVOID) lpvInBuffer,    // pointer to tcp_keepalive struct 
  (DWORD) cbInBuffer,      // length of input buffer 
  NULL,         // output buffer
  0,       // size of output buffer
  (LPDWORD) lpcbBytesReturned,    // number of bytes returned
  (LPWSAOVERLAPPED) lpOverlapped,   // OVERLAPPED structure
  (LPWSAOVERLAPPED_COMPLETION_ROUTINE) lpCompletionRoutine,  // completion routine
);

感谢您的帮助.

参考资料:如何使用python脚本更改tcp keepalive定时器?

https://msdn.microsoft.com/en-us/library/dd877220%28v=vs.85%29.aspx

推荐答案

这是你在 c 中的做法

Here is how you do it in c

static PyObject*
sock_ioctl(PyObject *argO , PyObject *arg)
{
PyObject *s;
DWORD recv;
struct tcp_keepalive ka;
if (!PyArg_ParseTuple(arg, "O(kkk):keepalive",&s,
    &ka.onoff, &ka.keepalivetime, &ka.keepaliveinterval))
    return NULL;

if (WSAIoctl(PyObject_AsFileDescriptor(s), SIO_KEEPALIVE_VALS, &ka,  sizeof(ka),
    NULL, 0, &recv, NULL, NULL) == SOCKET_ERROR) {
    return set_error();
}
return PyLong_FromUnsignedLong(recv);
}

我在github上做了一个小的python扩展https://github.com/rawinput/ioctl为python 2.5编译

I made a small python extension in github https://github.com/rawinput/ioctl compiled for python 2.5

这篇关于如何在 Windows 7 中运行的 python 2.5 中设置保持活动计时器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！