util v1.1.5

View Source sntp (util v1.1.5)

Implements SNTP query logic. SNTP - Simple Network Time Protocol (RFC-2030).

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Functions

avg_time()
Query NTP time sources from "/etc/ntp.conf" and return min/max/avg offset of current host from given time sources.

See also: avg_time/1.

avg_time(ServerAddresses)
Query ServerAddress NTP time sources and return min/max/avg offset of current host from given time sources.
time(ServerAddress)
Query ServerAddress time source to find out server time and current host's offset from time source.
time_servers()
Return a list of default NTP time servers for this host.
time_servers(Resolve)
Return a list of default NTP time servers for this host. If Resolve is true, the list will contain IP addresses or else host names.

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avg_time()

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-spec avg_time() -> {Min :: integer(), Max :: integer(), Avg :: integer()}.
Query NTP time sources from "/etc/ntp.conf" and return min/max/avg offset of current host from given time sources.

See also: avg_time/1.

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avg_time(ServerAddresses)

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-spec avg_time([inet:ip_address()]) -> {Min :: integer(), Max :: integer(), Avg :: integer()}.
Query ServerAddress NTP time sources and return min/max/avg offset of current host from given time sources.
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time(ServerAddress)

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-spec time(ServerAddress :: inet:ip_address()) -> #sntp{}.
Query ServerAddress time source to find out server time and current host's offset from time source.
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time_servers()

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-spec time_servers() -> [inet:ip_address()].
Return a list of default NTP time servers for this host.
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time_servers(Resolve)

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-spec time_servers(boolean()) -> [inet:ip_address()].
Return a list of default NTP time servers for this host. If Resolve is true, the list will contain IP addresses or else host names.