文件名称：进程间传递Socket文件描述符-python cookbook(第3版)高清中文完整版
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更新时间：2024-06-29 23:06:38
python cookbook 第3版 高清 中文完整版
11.11 进程间传递Socket文件描述符 问题 You have multiple Python interpreter processes running and you want to pass an open file descriptor from one interpreter to the other. For instance, perhaps there is a server process that is responsible for receiving connections, but the actual servicing of clients is to be handled by a different interpreter. 解决方案 To pass a file descriptor between processes, you first need to connect the processes together. On Unix machines, you might use a Unix domain socket, whereas on Win‐ dows, you could use a named pipe. However, rather than deal with such low-level mechanics, it is often easier to use the multiprocessing module to set up such a connection. Once a connection is established, you can use the send_handle() and recv_handle() functions in multiprocessing.reduction to send file descriptors between processes. The following example illustrates the basics: import multiprocessing from multiprocessing.reduction import recv_handle, send_handle import socket def worker(in_p, out_p): out_p.close() while True: