Functions
int64	timeToSeconds (int64 time)

int64	timeFromSeconds (int64 seconds)

int64	timeToMsec (int64 time)

int64	timeFromMsec (int64 msec)

int64	timeFromRelTimespec (struct timespec *ts)

void	timeToRelTimespec (struct timespec *ts, int64 time)

int64	timeFromAbsTimespec (struct timespec *ts)

void	timeToAbsTimespec (struct timespec *ts, int64 time)

int64	timeFromTimeT (time_t tt)

time_t	timeToTimeT (int64 time)

Detailed Description

Functions for converting between time units and external time formats.

Function Documentation

◆ timeFromAbsTimespec()

int64 timeFromAbsTimespec ( struct timespec * ts )

inline

Convert a Unix absolute timespec to Julian epoch time.

Converts a POSIX timespec structure representing an absolute timestamp (seconds since Unix epoch: Jan 1, 1970) to microseconds since Julian epoch.

Unix epoch (Jan 1, 1970 00:00:00 UTC) corresponds to Julian date 2440587.50000, which is 210866760000000000 microseconds from the Julian epoch.

Parameters

ts	Pointer to timespec structure with Unix epoch timestamp

Returns: Time value in microseconds since Julian epoch

Definition at line 178 of file time.h.

◆ timeFromMsec()

int64 timeFromMsec ( int64 msec )

inline

Convert milliseconds to microseconds.

Parameters

msec	Time value in milliseconds

Returns: Time value in microseconds

Definition at line 136 of file time.h.

◆ timeFromRelTimespec()

int64 timeFromRelTimespec ( struct timespec * ts )

inline

Convert a relative timespec to microseconds.

Converts a POSIX timespec structure representing a relative time interval (not an absolute timestamp) to microseconds.

Parameters

ts	Pointer to timespec structure

Returns: Time interval in microseconds

Definition at line 148 of file time.h.

◆ timeFromSeconds()

int64 timeFromSeconds ( int64 seconds )

inline

Convert seconds to microseconds.

Parameters

seconds Time value in seconds

Returns: Time value in microseconds

Definition at line 120 of file time.h.

◆ timeFromTimeT()

int64 timeFromTimeT ( time_t tt )

inline

Convert a Unix time_t to Julian epoch time.

Converts a standard C time_t value (seconds since Unix epoch: Jan 1, 1970) to microseconds since Julian epoch.

Parameters

tt	time_t value

Returns: Time value in microseconds since Julian epoch

Definition at line 216 of file time.h.

◆ timeToAbsTimespec()

void timeToAbsTimespec	(	struct timespec *	ts,
		int64	time
	)

inline

Convert Julian epoch time to a Unix absolute timespec.

Converts a time value in microseconds since Julian epoch to a POSIX timespec structure representing seconds since Unix epoch (Jan 1, 1970).

Parameters

ts	Pointer to timespec structure to populate
time	Time value in microseconds since Julian epoch

Definition at line 201 of file time.h.

◆ timeToMsec()

int64 timeToMsec ( int64 time )

inline

Convert microseconds to milliseconds (truncating).

Parameters

time	Time value in microseconds

Returns: Time value in milliseconds

Definition at line 128 of file time.h.

◆ timeToRelTimespec()

void timeToRelTimespec	(	struct timespec *	ts,
		int64	time
	)

inline

Convert microseconds to a relative timespec.

Converts a time interval in microseconds to a POSIX timespec structure representing a relative time (not an absolute timestamp).

Parameters

ts	Pointer to timespec structure to populate
time	Time interval in microseconds

Definition at line 162 of file time.h.

◆ timeToSeconds()

int64 timeToSeconds ( int64 time )

inline

Convert microseconds to seconds (truncating).

Parameters

time	Time value in microseconds

Returns: Time value in seconds

Definition at line 112 of file time.h.

◆ timeToTimeT()

time_t timeToTimeT ( int64 time )

inline

Convert Julian epoch time to a Unix time_t.

Converts a time value in microseconds since Julian epoch to a standard C time_t value (seconds since Unix epoch).

Parameters

time	Time value in microseconds since Julian epoch

Returns: time_t value (seconds since Unix epoch)

Definition at line 230 of file time.h.