mirror of
https://github.com/espressif/esp-idf.git
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81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
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# SPDX-License-Identifier: Unlicense OR CC0-1.0
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import argparse
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import socket
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from threading import Event, Thread
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DEF_PORT = 3333
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class UdpServer:
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def __init__(self, port, family_addr, persist=False, timeout=60): # type: ignore
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self.port = port
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self.family_addr = family_addr
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self.socket = socket.socket(family_addr, socket.SOCK_DGRAM)
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self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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self.socket.settimeout(timeout)
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self.shutdown = Event()
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self.persist = persist
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self.server_thread = None
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def __enter__(self): # type: ignore
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try:
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self.socket.bind(('', self.port))
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except socket.error as e:
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print('Bind failed:{}'.format(e))
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raise
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print('Starting server on port={} family_addr={}'.format(self.port, self.family_addr))
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self.server_thread = Thread(target=self.run_server)
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self.server_thread.start()
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return self
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def __exit__(self, exc_type, exc_value, traceback): # type: ignore
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if self.persist:
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sock = socket.socket(self.family_addr, socket.SOCK_DGRAM)
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sock.sendto(b'Stop', ('localhost', self.port))
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sock.close()
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self.shutdown.set()
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self.server_thread.join()
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self.socket.close()
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def run_server(self) -> None:
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while not self.shutdown.is_set():
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try:
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data, addr = self.socket.recvfrom(1024)
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print(addr)
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if not data:
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return
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data = data.decode()
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print('Reply[' + addr[0] + ':' + str(addr[1]) + '] - ' + data)
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reply = 'OK: ' + data
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self.socket.sendto(reply.encode(), addr)
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except socket.timeout:
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print(f'socket recvfrom timeout ({self.socket.timeout}s)')
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except socket.error as e:
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print('Running server failed:{}'.format(e))
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raise
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if not self.persist:
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break
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def main() -> None:
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parser = argparse.ArgumentParser()
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parser.add_argument('--port', default=DEF_PORT, type=int, help='UDP server port')
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parser.add_argument('--ipv6', action='store_true', help='Create IPv6 server.')
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parser.add_argument('--timeout', default=10, type=int, help='socket recvfrom timeout.')
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args = parser.parse_args()
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if args.ipv6:
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family = socket.AF_INET6
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else:
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family = socket.AF_INET
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with UdpServer(args.port, family, persist=True, timeout=args.timeout):
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input('Server Running. Press Enter or CTRL-C to exit...\n')
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if __name__ == '__main__':
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main()
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