Struct SYN_SNTP

ClassList > SYN_SNTP

SNTP client context — caller-owned.

• #include <syn_sntp.h>

Public Attributes

Type	Name
SYN_Backoff	backoff
SYN_FilterEMA	drift_filter
int32_t	drift_ppm
uint32_t	epoch_frac
uint32_t	epoch_s
uint32_t	prev_sync_epoch
uint32_t	prev_sync_tick_ms
uint32_t	recv_deadline
SYN_SockAddr	server
uint32_t	sync_interval_s
uint32_t	sync_tick_ms
bool	synced
SYN_Socket	udp_sock

Public Attributes Documentation

variable backoff

SYN_Backoff SYN_SNTP::backoff;

Retry backoff state

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variable drift_filter

SYN_FilterEMA SYN_SNTP::drift_filter;

EMA filter for clock drift PPM smoothing

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variable drift_ppm

int32_t SYN_SNTP::drift_ppm;

Calculated & filtered clock drift in PPM (+ = fast, - = slow)

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variable epoch_frac

uint32_t SYN_SNTP::epoch_frac;

Fractional seconds (NTP format)

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variable epoch_s

uint32_t SYN_SNTP::epoch_s;

Last synced UTC epoch (seconds)

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variable prev_sync_epoch

uint32_t SYN_SNTP::prev_sync_epoch;

Epoch at previous sync for PPM calculation

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variable prev_sync_tick_ms

uint32_t SYN_SNTP::prev_sync_tick_ms;

Local tick at previous sync for PPM calculation

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variable recv_deadline

uint32_t SYN_SNTP::recv_deadline;

Tick deadline for non-blocking recv

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variable server

SYN_SockAddr SYN_SNTP::server;

NTP server address (IP + port)

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variable sync_interval_s

uint32_t SYN_SNTP::sync_interval_s;

Re-sync interval in seconds

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variable sync_tick_ms

uint32_t SYN_SNTP::sync_tick_ms;

Local tick at time of last sync

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variable synced

bool SYN_SNTP::synced;

true after first successful sync

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variable udp_sock

SYN_Socket SYN_SNTP::udp_sock;

UDP socket handle

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The documentation for this class was generated from the following file src/syntropic/net/syn_sntp.h