README
¶
Time
Contents
Documentation
Collection of Meta's Time Libraries such as NTP and PTP
cmd
All executables provided by this repo.
NTP
NTP-specific libraries, including protocol implementation.
PTP
PTP-specific libraries, including protocol implementation.
Leaphash
Utility package for computing the hash value of the official leap-second.list document
leapsectz
Utility package for obtaining leap second information from the system timezone database
PHC
Library to work with PTP Hardware Clock (PHC).
Timestamp
Library to work with NIC hardware/software timestamps.
oscillatord
Implementation of monitoring protocol used by Orolia oscillatord.
Calnex
Command line tool and library for a Calnex Sentinel device.
fbclock
Client C library and Go daemon to provide TrueTime API based on PTP time.
servo
Pi servo library
clock
Wrapper around CLOCK_ADJTIME syscall
License
time is licensed under Apache 2.0 as found in the LICENSE file.
Directories
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| Path | Synopsis |
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calnex
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Package clock contains a wrapper around CLOCK_ADJTIME syscall.
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Package clock contains a wrapper around CLOCK_ADJTIME syscall. |
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cmd
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ntpcheck
CLI to perform various NTP-related tasks
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CLI to perform various NTP-related tasks |
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ntpcheck/checker
Package checker provides an easy way to talk to NTPD/Chronyd and get NTPCheckResult, which abstracts away Chrony/NTP control protocol implementation details and contains tons of information useful for NTP monitoring, like NTP server variables including offset, peers and their variables and statuses.
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Package checker provides an easy way to talk to NTPD/Chronyd and get NTPCheckResult, which abstracts away Chrony/NTP control protocol implementation details and contains tons of information useful for NTP monitoring, like NTP server variables including offset, peers and their variables and statuses. |
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Package hostendian provides way to check the endianness of the machine this code is running on.
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Package hostendian provides way to check the endianness of the machine this code is running on. |
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Package leaphash is a utility package for computing the hash value of the official leap-second.list document
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Package leaphash is a utility package for computing the hash value of the official leap-second.list document |
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Package leapsectz is a utility package for obtaining leap second information from the system timezone database
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Package leapsectz is a utility package for obtaining leap second information from the system timezone database |
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ntp
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chrony
Package chrony implements Chrony (https://chrony.tuxfamily.org) network protocol v6 used for monitoring of the timeserver.
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Package chrony implements Chrony (https://chrony.tuxfamily.org) network protocol v6 used for monitoring of the timeserver. |
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control
Package control implements NTP Control Protocol (RFC1305, Appendix B).
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Package control implements NTP Control Protocol (RFC1305, Appendix B). |
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protocol
Package protocol implements ntp packet and basic functions to work with.
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Package protocol implements ntp packet and basic functions to work with. |
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responder/announce
Package announce implements announcement of server IPs.
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Package announce implements announcement of server IPs. |
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responder/checker
Package checker implements checking mechanism of server aliveness.
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Package checker implements checking mechanism of server aliveness. |
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responder/server
Package server implements simple UDP server to work with NTP packets.
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Package server implements simple UDP server to work with NTP packets. |
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responder/stats
Package stats implements statistics collection and reporting.
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Package stats implements statistics collection and reporting. |
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Package oscillatord implements monitoring protocol used by Orolia's oscillatord, daemon for disciplining an oscillator.
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Package oscillatord implements monitoring protocol used by Orolia's oscillatord, daemon for disciplining an oscillator. |
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Package phc contains code to work with PTP Hardware Clock (PHC).
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Package phc contains code to work with PTP Hardware Clock (PHC). |
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ptp
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c4u/stats
Package stats implements statistics collection and reporting.
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Package stats implements statistics collection and reporting. |
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protocol
Package protocol implements a subset of the PTPv2.1 protocol (IEEE 1588-2019).
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Package protocol implements a subset of the PTPv2.1 protocol (IEEE 1588-2019). |
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ptp4u/server
Package server implements simple Unicast PTP UDP server.
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Package server implements simple Unicast PTP UDP server. |
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ptp4u/stats
Package stats implements statistics collection and reporting.
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Package stats implements statistics collection and reporting. |
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simpleclient
Package simpleclient provides very simplistic PTPv2 unicast client.
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Package simpleclient provides very simplistic PTPv2 unicast client. |
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