[英]Python Non-blocking peer to peer chat socket.error: [Errno 32] Broken pipe
Hi i write simple chat program for peer to peer chat between server and client. 嗨,我编写了用于服务器和客户端之间的对等聊天的简单聊天程序。 This code is working for Client side and client can send message and server recives that messages.
此代码适用于客户端,客户端可以发送消息,服务器可以接收该消息。 but for server side when i want to send a message i have error in line 40
但是对于服务器端,当我想发送消息时,第40行出现错误
File "server.py", line 40, in <module>
newSocket.send('\r<Server>: ' + msg)
socket.error: [Errno 32] Broken pipe
and server crashes. 和服务器崩溃。
Server : 服务器:
import socket
import os
import select
import sys
def prompt():
sys.stdout.write('Server : ')
sys.stdout.flush()
try:
newSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
newSocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
except:
print 'socket Error'
sys.exit(1)
newSocket.bind(('127.0.0.1', 8000))
newSocket.listen(5)
input_list = [newSocket, sys.stdin]
print 'Chat Program'
prompt()
while True:
inputready, outputready, exceptready = select.select(input_list,[],[])
for sock in inputready:
if sock == newSocket:
(client, (ip, port)) = newSocket.accept()
input_list.append(client)
data = client.recv(2048)
if data:
sys.stdout.write(data)
elif sock == sys.stdin:
msg = sys.stdin.readline()
newSocket.send('\r<Server>: ' + msg)
prompt()
else:
data = sock.recv(2048)
if data:
sys.stdout.write(data)
newSocket.close()
client : 客户:
import socket
import os
import select
import sys
def prompt():
sys.stdout.write('Client ')
sys.stdout.flush()
try:
newSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
newSocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
except:
print 'socket Error'
sys.exit(1)
newSocket.connect(('127.0.0.1', 8000))
print 'Connected to remote host. Start sending messages'
prompt()
while 1:
socket_list = [sys.stdin, newSocket]
read_sockets, write_sockets, error_sockets = select.select(socket_list, [], [])
for sock in read_sockets:
if sock == newSocket:
data = sock.recv(4096)
if not data:
print '\nDisconnected from chat server'
sys.exit()
else:
sys.stdout.write(data)
prompt()
else:
msg = sys.stdin.readline()
newSocket.send('\r<Client>: ' + msg)
prompt()
You should use accept()
. 您应该使用
accept()
。 It seems newSocket
is not ready to output when you try to .send()
with it. 尝试使用
.send()
时,似乎newSocket
尚未准备好输出。
I change Server code to this and problem has been solved: 我将服务器代码更改为此,问题已解决:
import socket
import select
import sys
CONNECTION_LIST = []
RECV_BUFFER = 4096
PORT = 1245
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server_socket.bind(('0.0.0.0', PORT))
server_socket.listen(5)
CONNECTION_LIST.append(server_socket)
CONNECTION_LIST.append(sys.stdin)
print 'Chat server Started on port ' + str(PORT)
def broadcast_data(sock, message):
for socket in CONNECTION_LIST:
if socket != server_socket and socket != sock and socket != sys.stdin:
try:
socket.send(message)
except:
socket.close()
CONNECTION_LIST.remove(socket)
def prompt() :
sys.stdout.write('<You> ')
sys.stdout.flush()
prompt()
while True:
read_sockets, write_sockets, error_sockets = select.select(CONNECTION_LIST, [], []) # NON_blocking I/O with 0
for sock in read_sockets:
if sock == server_socket:
# new Connection
sockfd, addr = server_socket.accept()
CONNECTION_LIST.append(sockfd)
print 'Clinet (%s, %s) connected ' % addr
broadcast_data(sockfd, "[%s:%s] entered room" % addr)
elif sock == sys.stdin:
msg = sys.stdin.readline()
broadcast_data(sock, 'Server > ' + msg)
prompt()
else:
try:
#In Windows, sometimes when a TCP program closes abruptly,
# a "Connection reset by peer" exception will be thrown
data = sock.recv(RECV_BUFFER)
if data:
print "\r" + '<' + str(sock.getpeername()) + '>' + data
broadcast_data(sock, "\r" + '<' + str(sock.getpeername()) + '>' + data)
except:
broadcast_data(sock, "Client (%s, %s) is offline" % addr)
print "Client (%s, %s) is offline" % addr
sock.close()
CONNECTION_LIST.remove(sock)
continue
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