50 lines
2.2 KiB
Python
50 lines
2.2 KiB
Python
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# Copyright (c) 2018 gevent community
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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from __future__ import absolute_import, print_function, division
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from .params import DEFAULT_BIND_ADDR_TUPLE
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def bind_and_listen(sock, address=DEFAULT_BIND_ADDR_TUPLE, backlog=50, reuse_addr=True):
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from socket import SOL_SOCKET, SO_REUSEADDR, error
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if reuse_addr:
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try:
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sock.setsockopt(SOL_SOCKET, SO_REUSEADDR,
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sock.getsockopt(SOL_SOCKET, SO_REUSEADDR) | 1)
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except error:
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pass
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sock.bind(address)
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if backlog is not None: # udp
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sock.listen(backlog)
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def tcp_listener(address=DEFAULT_BIND_ADDR_TUPLE, backlog=50, reuse_addr=True):
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"""A shortcut to create a TCP socket, bind it and put it into listening state."""
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from gevent import socket
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sock = socket.socket()
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bind_and_listen(sock, address, backlog=backlog, reuse_addr=reuse_addr)
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return sock
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def udp_listener(address=DEFAULT_BIND_ADDR_TUPLE, reuse_addr=True):
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"""A shortcut to create a UDF socket, bind it and put it into listening state."""
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from gevent import socket
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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bind_and_listen(sock, address, backlog=None, reuse_addr=reuse_addr)
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return sock
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