#!/usr/bin/env python3
# Copyright 2015 gRPC authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Opens a TCP connection to a specified server and then exits."""

import argparse
import socket
import sys
import threading
import time


def main():
    argp = argparse.ArgumentParser(
        description="Open a TCP handshake to a server"
    )
    argp.add_argument(
        "-s",
        "--server_host",
        default=None,
        type=str,
        help="Server host name or IP.",
    )
    argp.add_argument(
        "-p",
        "--server_port",
        default=0,
        type=int,
        help="Port that the server is listening on.",
    )
    argp.add_argument(
        "-t",
        "--timeout",
        default=1,
        type=int,
        help="Force process exit after this number of seconds.",
    )
    args = argp.parse_args()
    socket.create_connection(
        [args.server_host, args.server_port], timeout=args.timeout
    )


if __name__ == "__main__":
    main()
