esp-idf/examples/protocols/sockets/scripts/run_tcp_server.py
2022-12-16 19:03:25 +08:00

86 lines
2.9 KiB
Python

# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Unlicense OR CC0-1.0
import argparse
import socket
from threading import Event, Thread
DEF_PORT = 3333
class TcpServer(object):
def __init__(self, port, family_addr, persist=False, timeout=60): # type: ignore
self.port = port
self.socket = socket.socket(family_addr, socket.SOCK_STREAM)
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.socket.settimeout(timeout)
self.shutdown = Event()
self.persist = persist
self.family_addr = family_addr
self.server_thread = None
def __enter__(self): # type: ignore
try:
self.socket.bind(('', self.port))
except socket.error as e:
print('Bind failed:{}'.format(e))
raise
self.socket.listen(1)
print('Starting server on port={} family_addr={}'.format(self.port, self.family_addr))
self.server_thread = Thread(target=self.run_server)
self.server_thread.start()
return self
def __exit__(self, exc_type, exc_value, traceback) -> None: # type: ignore
if self.persist:
sock = socket.socket(self.family_addr, socket.SOCK_STREAM)
sock.connect(('localhost', self.port))
sock.sendall(b'Stop', )
sock.close()
self.shutdown.set()
self.shutdown.set()
self.server_thread.join()
self.socket.close()
def run_server(self) -> None:
while not self.shutdown.is_set():
try:
conn, address = self.socket.accept() # accept new connection
print('Connection from: {}'.format(address))
conn.setblocking(1)
data = conn.recv(1024)
if not data:
return
data = data.decode()
print('Received data: ' + data)
reply = 'OK: ' + data
conn.send(reply.encode())
conn.close()
except socket.timeout:
print(f'socket accept timeout ({self.socket.timeout}s)')
except socket.error as e:
print('Running server failed:{}'.format(e))
raise
if not self.persist:
break
def main() -> None:
parser = argparse.ArgumentParser()
parser.add_argument('--port', default=DEF_PORT, type=int, help='TCP server port')
parser.add_argument('--ipv6', action='store_true', help='Create IPv6 server.')
parser.add_argument('--timeout', default=10, type=int, help='socket accept/recv timeout.')
args = parser.parse_args()
if args.ipv6:
family = socket.AF_INET6
else:
family = socket.AF_INET
with TcpServer(args.port, family, persist=True, timeout=args.timeout):
input('Server Running. Press Enter or CTRL-C to exit...\n')
if __name__ == '__main__':
main()