81 lines
2.0 KiB
Python
81 lines
2.0 KiB
Python
# -*- coding:UTF-8 -*-
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from traceback import print_exc
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from socket import *
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import json
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from appPublic.sockPackage import get_free_local_addr
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from appPublic.background import Background
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BUFSIZE = 1024 * 64
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class UdpComm:
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def __init__(self, port, callback, timeout=1):
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self.callback = callback
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self.timeout = timeout
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self.host = get_free_local_addr()[0]
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self.port = port
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self.udpSerSock = socket(AF_INET, SOCK_DGRAM)
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# 设置阻塞
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self.udpSerSock.setblocking(1)
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# 设置超时时间 1s
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# self.udpSerSock.settimeout(timeout)
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self.udpSerSock.bind(('' ,port))
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self.run_flg = True
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self.thread = Background(self.run)
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self.thread.start()
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def run(self):
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while self.run_flg:
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try:
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b, addr = self.udpSerSock.recvfrom(BUFSIZE)
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if addr[0] != self.host:
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self.callback(b, addr)
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except Exception as e:
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print('exception happened:',e)
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print_exc()
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pass
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def stop(self):
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self.run_flg = False
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self.udpSerSock.close()
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def broadcast(self, data):
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broadcast_host = '.'.join(self.host.split('.')[:-1]) + '.255'
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udpCliSock = socket(AF_INET, SOCK_DGRAM)
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udpCliSock.settimeout(self.timeout)
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udpCliSock.bind(('', 0))
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udpCliSock.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
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b = data
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if not isinstance(data, bytes):
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b = json.dumps(data).encode('utf-8')
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udpCliSock.sendto(b, (broadcast_host,self.port))
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def send(self,data,addr):
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b = data
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if not isinstance(data, bytes):
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b = json.dumps(data).encode('utf-8')
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if isinstance(addr,list):
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addr = tuple(addr)
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self.udpSerSock.sendto(b,addr)
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def sends(self,data, addrs):
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b = data
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if not isinstance(data, bytes):
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b = json.dumps(data).encode('utf-8')
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for addr in addrs:
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if isinstance(addr,list):
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addr = tuple(addr)
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self.udpSerSock.sendto(b,addr)
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if __name__ == '__main__':
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import sys
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def msg_handle(data, addr):
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print('addr:', addr, 'data=', data)
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port = 50000
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if len(sys.argv)>1:
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port = int(sys.argv[1])
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d = UdpComm(port, msg_handle)
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x = input()
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while x:
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d.broadcast(x)
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x = input()
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