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16 lines
674 B
Python
16 lines
674 B
Python
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import socket
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# http://stackoverflow.com/a/14855726
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def set_keepalive(sock, after_idle_sec=1, interval_sec=3, max_fails=5):
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"""Set TCP keepalive on an open socket.
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It activates after 1 second (after_idle_sec) of idleness,
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then sends a keepalive ping once every 3 seconds (interval_sec),
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and closes the connection after 5 failed ping (max_fails), or 15 seconds
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"""
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
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sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, after_idle_sec)
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sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, interval_sec)
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sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPCNT, max_fails)
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