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The keyword specifies how option works when specified multiple times: - single: the last provided value replaces the earlier ones - append: it supports being provided multiple times - boolean: on/off values - mutex: flag-like option that disable anoter flag The 'gen.pl' script then outputs the proper and unified language for each option's multi-use behavior in the generated man page. The multi: header is requires in each .d file and will cause build error if missing or set to an unknown value. Closes #9759
22 lines
896 B
D
22 lines
896 B
D
c: Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Long: keepalive-time
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Arg: <seconds>
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Help: Interval time for keepalive probes
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Added: 7.18.0
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Category: connection
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Example: --keepalive-time 20 $URL
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See-also: no-keepalive max-time
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Multi: single
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---
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This option sets the time a connection needs to remain idle before sending
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keepalive probes and the time between individual keepalive probes. It is
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currently effective on operating systems offering the TCP_KEEPIDLE and
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TCP_KEEPINTVL socket options (meaning Linux, recent AIX, HP-UX and more).
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Keepalives are used by the TCP stack to detect broken networks on idle
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connections. The number of missed keepalive probes before declaring the
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connection down is OS dependent and is commonly 9 or 10. This option has no
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effect if --no-keepalive is used.
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If unspecified, the option defaults to 60 seconds.
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