[英]Python: UDP echo server asyncore ; socket closing after send
我正在尝试编写一个使用asyncore.dispatcher_with_send回显数据的UDP服务器
我的问题是,当我设置缓冲区并调用self.send(self.buffer)时,似乎要调用handle_close并关闭套接字。
import asyncore, socket,
class Server(asyncore.dispatcher_with_send):
def __init__(self):
asyncore.dispatcher.__init__(self)
self.create_socket(socket.AF_INET, socket.SOCK_DGRAM)
self.bind(('192.168.0.10', 1452))
self.buffer = ''
self.recvData = ''
def handle_close(self):
self.close()
def handle_read(self):
print self.recv(8192)
self.buffer ='a'
def handle_write(self):
if self.buffer != '':
sent = self.send(self.buffer)
self.buffer = self.buffer[sent:]
if __name__ == '__main__':
The_Server = Server()
asyncore.loop()
有任何想法吗?
谢谢
解决方案是使用sendto并确保sendto地址是显式的。
import asyncore, socket,
class Server(asyncore.dispatcher_with_send):
def __init__(self):
asyncore.dispatcher.__init__(self)
self.create_socket(socket.AF_INET, socket.SOCK_DGRAM)
self.bind(('192.168.0.10', 1452))
self.buffer = ''
self.recvData = ''
def handle_close(self):
self.close()
def handle_read(self):
print self.recv(8192)
self.buffer ='a'
def handle_write(self):
if self.buffer != '':
sent = self.sendto(self.buffer,('192.168.0.9',1452))
self.buffer = self.buffer[sent:]
if __name__ == '__main__':
The_Server = Server()
asyncore.loop()
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