python写一个epoll服务端
时间: 2023-10-10 12:14:16 浏览: 83
好的,下面是一个简单的Python epoll 服务器端的示例代码:
```python
import socket
import select
SERVER_HOST = 'localhost'
SERVER_PORT = 8080
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server_socket.bind((SERVER_HOST, SERVER_PORT))
server_socket.listen(1)
epoll_object = select.epoll()
epoll_object.register(server_socket.fileno(), select.EPOLLIN)
try:
connections = {}
messages = {}
while True:
events = epoll_object.poll(1)
for fileno, event in events:
if fileno == server_socket.fileno():
connection, address = server_socket.accept()
epoll_object.register(connection.fileno(), select.EPOLLIN)
connections[connection.fileno()] = connection
messages[connection] = b''
elif event & select.EPOLLIN:
data = connections[fileno].recv(1024)
if data:
messages[connections[fileno]] += data
epoll_object.modify(fileno, select.EPOLLOUT)
else:
epoll_object.unregister(fileno)
connections[fileno].close()
del messages[connections[fileno]]
del connections[fileno]
elif event & select.EPOLLOUT:
message = messages[connections[fileno]]
sent = connections[fileno].send(message)
message = message[sent:]
if not message:
epoll_object.modify(fileno, select.EPOLLIN)
finally:
epoll_object.unregister(server_socket.fileno())
epoll_object.close()
server_socket.close()
```
这个代码使用select模块的epoll方法实现了一个基本的服务器。它监听来自客户端的连接,并使用epoll对象在不同的事件发生时进行相应的操作,包括接收客户端数据、发送响应数据、关闭连接等。这个示例也演示了如何使用字典来管理连接和消息。请注意,这只是一个简单的示例代码,并且可以根据你的具体需求进行修改和扩展。
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