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# Test recv on listening socket after accept(), with various listen() arguments
import socket
PORT = 8000
# Test cases for listen() function
LISTEN_ARGS = [None, 0, 1, 2] # None means no argument
# Server
def instance0():
multitest.globals(IP=multitest.get_network_ip())
multitest.next()
test_num = 0
for blocking_mode in [True, False]:
for listen_arg in LISTEN_ARGS:
test_num += 1
s = socket.socket()
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(socket.getaddrinfo("0.0.0.0", PORT)[0][-1])
# Call listen with or without argument based on test case
if listen_arg is None:
print(f"Test case {test_num}/8: listen() blocking={blocking_mode}")
s.listen()
else:
print(f"Test case {test_num}/8: listen({listen_arg}) blocking={blocking_mode}")
s.listen(listen_arg)
# Signal client that server is ready
multitest.broadcast(f"server_ready_{test_num}")
# Wait for client connection
c, _ = s.accept()
# Set blocking mode after accept
s.setblocking(blocking_mode)
try:
print("recv", s.recv(10)) # should raise Errno 107 ENOTCONN
except OSError as er:
# Verify the error code is either 107 (ENOTCONN) or 128 (ENOTCONN on Windows)
print(er.errno in (107, 128))
# Cleanup
c.close()
s.close()
# Signal client we're done with this test case
multitest.broadcast(f"server_done_{test_num}")
# Client
def instance1():
multitest.next()
test_num = 0
for blocking_mode in [True, False]:
for _ in LISTEN_ARGS:
test_num += 1
# Wait for server to be ready
multitest.wait(f"server_ready_{test_num}")
# Connect to server
s = socket.socket()
s.connect(socket.getaddrinfo(IP, PORT)[0][-1])
s.send(b"GET / HTTP/1.0\r\n\r\n")
s.close()
# Wait for server to finish this test case
multitest.wait(f"server_done_{test_num}")
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