CalculateJitter returns a random duration between 0 and maxJitter

ClockID derives the clock ID from the file descriptor number - see clock_gettime(3), FD_TO_CLOCKID macros

CurrentDataSetRequest prepares request packet for CURRENT_DATA_SET request

Dscmp2 finds better Announce based on network topology

EXPECT returns an object that allows the caller to indicate expected use.

FetchStats returns populated Stats structure fetched from the url

FetchStats fetches GMs via http

FetchStatus returns the calnex status

GenerateSVG creates an SVG plot of the full OTDR trace with peaks annotated

NewBitReader creates a BitReader over the given byte slice.

NewMixedScanner creates a scanner that reads both RTCM3 and UBX frames.

NewMockFrequencyGetter creates a new mock instance.

NormalizeData turns bytes that contain kv ASCII string info a map[string]string

Parse returns the list of leap seconds from srcfile. Pass "" to use default file

ParseRawx decodes a UBX-RXM-RAWX payload into an epoch with observations.

Pos returns the current bit position.

ProcessMonitoringResults returns map of metrics based on TestResults

SetLeapFile overrides the default leap second file path. Pass "" to reset.

Signaling returns ptp Signaling packet granting the requested subscription

SockaddrToPort converts socket address to an IP Somewhat copy from https://github.com/golang/go/blob/658b5e66ecbc41a49e6fb5aa63c5d9c804cf305f/src/net/

Start launches the HTTP server and a background goroutine that computes per-second rates.

UBXMsgID returns the UBX message ID.

UBXPayload returns the UBX payload (valid only when Type() == MsgUBX).

Worst finding worst case clock quality from supplied data points

Write dumps arrays of leap seconds into file with newly created header

aeadFor builds an AEAD for the given algorithm using a deterministic, correctly-sized key so tests can seal and open without external key material.

detectGNSSSerialFrom is the testable variant of GNSSSerial.

Like fbclock_calculate_time_v2 but for the REALTIME-domain anchor section, with a caller-provided ts (CLOCK_REALTIME ns). The caller's ts is typically

fillStaticHeaders pre-sets all the headers per worker which will never change numbers are taken from tcpdump.

handlePDelayReq responds to a Pdelay_Req message with Pdelay_Resp and Pdelay_Resp_Follow_Up This implements the responder side of peer delay measureme

https://datatracker.ietf.org/doc/html/rfc8173#section-7.6.2.4 https://datatracker.ietf.org/doc/html/rfc8173#section-7.6.2.5

selectNonLinkLocalAddr returns the first global unicast IPv6 address from addrs. Returns error if no suitable address is found.

ActivatePPSSource configures the PHC device to be a PPS timestamp source

BytesToPacket converts []bytes to Packet

Check is a method which performs basic validations that responder is alive

ClockAdjtime is not supported on non-linux.

Close flushes the internal buffer. The underlying writer is not closed here; the caller owns its lifecycle.

CurrentDataSet sends CURRENT_DATA_SET request and returns response

EXPECT returns an object that allows the caller to indicate expected use.

Enable dscp on the fd

Equals compares two bundles and returns true if they both contain exactly the same certificates.

Err returns the first non-EOF error.

Export data from the device about specified channels to the specified output

FindSubscription retrieves an existing client

FindSysPeer returns sys.peer (main source of NTP information for server)

Firmware checks target Calnex firmware version and upgrades if apply is specified Returns err if there is a failure at any point in the process

FormatFWVersion return string representation of firmware version

Frame returns the RTCM3 frame (valid only when Type() == MsgRTCM3).

GetAssociationInfo returns parsed normalized variables if present

GetMaxFreq gets current configured max frequency

HasError returns true if packet has error flag set

HasMore returns true if packet has More flag set

IncReload atomically add 1 to the counter

IncSubscription atomically add 1 to the counter

IncTX atomically add 1 to the counter

IsSA5x returns true if the detected time card uses an SA5x (Celestica) oscillator

Less reports whether p sorts before q. Port identities sort first by clock identity, then their port numbers.

MarshalAuthenticatorBody serializes nonce and ciphertext into the authenticator EF body wire format defined by RFC 8915 §5.6. Nonce and ciphertext are

MarshalText timestamp to byte slice

NewJSONStats creates a new JSONStats instance.

NewLogger wraps w in a buffered writer and emits a "MARK sa53 poll start" line so the file always begins with a recognizable header.

NewNTPDataPacket creates new packet to request 'ntp data' information for given peer IP

NewServerStatsPacket creates new packet to request 'serverstats' information

NewSockaddrWithPort creates a new socket address with the same IP and new port

NewStats created new instance of Stats

ReadPacketWithRXTimestamp returns byte packet and HW RX timestamp

Seal encrypts and authenticates plaintext, binding it to ad. It returns the nonce (possibly empty) and ciphertext to place in the Authenticator's Nonc

Set adds check to the runlist

SetExpire atomically sets expire

Snapshot the values so they can be reported atomically

StopMeasure stops measurement

TimeNs converts distance in meters to time in nanoseconds using the refractive index

UBXClass returns the UBX message class.

UnmarshalText timestamp from byte slice

UnmarshalText parses ClockClass from a config string

UpdateCounterBy will increment counter

Valid returns true if all timestamps are set

Validate BackoffConfig is sane

Validate config is sane

Value decodes IntFloat to float64

buildEph builds GPS LNAV subframes 1-3 for a satellite with a consistent IODE/IODC. The optional fields callback sets additional ephemeris values.

buildUBXFrame wraps a payload in a UBX frame (sync, class, id, length, payload, Fletcher-8 checksum).

detectGNSSSerialFromGlob is the testable variant of GNSSSerialFromPCI. It accepts a filepath.Glob pattern, requires exactly one match, and reads the m

exactFactor numerically computes the one-sided normal tolerance factor t'_{n-1, sqrt(n)*zp}(gamma)/sqrt(n) for n >= 2 (NaN for n < 2, the genuine boun