mirror of
https://github.com/espressif/esp-idf.git
synced 2025-11-04 09:01:40 +01:00
81 lines
2.7 KiB
Python
81 lines
2.7 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 UdpServer:
|
|
|
|
def __init__(self, port, family_addr, persist=False, timeout=60): # type: ignore
|
|
self.port = port
|
|
self.family_addr = family_addr
|
|
self.socket = socket.socket(family_addr, socket.SOCK_DGRAM)
|
|
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
self.socket.settimeout(timeout)
|
|
self.shutdown = Event()
|
|
self.persist = persist
|
|
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
|
|
|
|
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): # type: ignore
|
|
if self.persist:
|
|
sock = socket.socket(self.family_addr, socket.SOCK_DGRAM)
|
|
sock.sendto(b'Stop', ('localhost', self.port))
|
|
sock.close()
|
|
self.shutdown.set()
|
|
self.server_thread.join()
|
|
self.socket.close()
|
|
|
|
def run_server(self) -> None:
|
|
while not self.shutdown.is_set():
|
|
try:
|
|
data, addr = self.socket.recvfrom(1024)
|
|
print(addr)
|
|
if not data:
|
|
return
|
|
data = data.decode()
|
|
print('Reply[' + addr[0] + ':' + str(addr[1]) + '] - ' + data)
|
|
reply = 'OK: ' + data
|
|
self.socket.sendto(reply.encode(), addr)
|
|
except socket.timeout:
|
|
print(f'socket recvfrom 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='UDP server port')
|
|
parser.add_argument('--ipv6', action='store_true', help='Create IPv6 server.')
|
|
parser.add_argument('--timeout', default=10, type=int, help='socket recvfrom timeout.')
|
|
args = parser.parse_args()
|
|
|
|
if args.ipv6:
|
|
family = socket.AF_INET6
|
|
else:
|
|
family = socket.AF_INET
|
|
|
|
with UdpServer(args.port, family, persist=True, timeout=args.timeout):
|
|
input('Server Running. Press Enter or CTRL-C to exit...\n')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|