[英]How to close Python socket running in a thread after CTRL+C?
我在python中有一个多线程程序,我想在CTRL + C(或Z)后关闭套接字。 我试过这个和这个 ,但他们没有工作过。
尝试重新运行程序时,出现错误消息:
绑定失败。 错误代码:98消息地址已在使用中,称为Traceback(最近一次调用):文件“ main.py”,位于main.connection.close()中的第16行,名称错误:未定义名称“ main”
from connection import Connection
class Main():
def __init__(self):
self.connection = Connection()
self.connection.start()
if __name__ == '__main__':
try:
main = Main()
except:
main.connection.close()
import socket
import sys
import threading
import time
class Connection(threading.Thread):
def __init__(self, group=None, target=None, name=None, args=(), kwargs=None, verbose=None):
threading.Thread.__init__(self, group=group, target=target, name=name, args=args, kwargs=kwargs, verbose=verbose)
self.server = None
self.connection = self.start_connention()
self.data = "null"
self.lock = threading.Lock()
self.OK = True
def start_connention(self):
host = '192.168.42.1'
port = 8888
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
print 'Socket created'
#Bind socket to local host and port
try:
s.bind((host, port))
except socket.error, msg:
print 'Bind failed. Error code: ' + str(msg[0]) + ' Message ' + msg[1]
sys.exit()
print 'Socket bind complete'
#Start listening on socket
s.listen(10)
print 'Socket now listening on ' + str(port)
connection, addr = s.accept()
print 'Connected with ' + addr[0] + ':' + str(addr[1])
self.server = s
return connection
def close(self):
print("closing")
self.OK = False
self.server.close()
def run(self):
while self.OK:
with self.lock:
self.data = self.connection.recv(4096)
print(str(self.data))
time.sleep(0.02)
def send(self, message):
self.connection.sendall(message)
从文档:KeyboardInterrupt继承自BaseException,以免被捕获Exception的代码意外捕获,从而防止解释器退出。 docs
if __name__ == '__main__':
try:
main = Main()
except KeyboardInterrupt:
pass
finally:
main.connection.close()
我建议您对这些东西使用atexit
模块。 只需将此行放在__init__
中,以防任何python进程终止,连接将关闭
atexit.register(self.close)
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