Time

Timestamping operations for measuring the timing of CPU code. More...

Functions
void	timestamp (timespec *timestampOut)
	Retrieve a timestamp of the current system time. More...
timespec	timestamp ()
	Retrieve a timestamp of the current system time. More...
timespec	timeZero ()
	Return a blank timespec that's been zero'd. More...
timespec	timeNew (time_t seconds, long int nanoseconds)
	Return an initialized timespec More...
timespec	timeNew (long int nanoseconds)
	Return an initialized timespec More...
timespec	timeAdd (const timespec &a, const timespec &b)
	Add two times together. More...
void	timeDiff (const timespec &start, const timespec &end, timespec *result)
	Find the difference between two timestamps. More...
timespec	timeDiff (const timespec &start, const timespec &end)
	Find the difference between two timestamps. More...
int	timeCmp (const timespec &a, const timespec &b)
	Compare two timestamps. More...
void	apptime (timespec *a)
	Retrieve the elapsed time since the process started. More...
uint64_t	apptime_nano ()
	Retrieve the elapsed time since the process started (in nanoseconds). More...
float	apptime ()
	Retrieve the elapsed time since the process started (in seconds). More...
float	timeFloat (const timespec &a)
	Convert to 32-bit float (in milliseconds). More...
double	timeDouble (const timespec &a)
	Convert to 64-bit double (in milliseconds). More...
double	timeDouble ()
	Get current timestamp as 64-bit double (in milliseconds). More...
char *	timeStr (const timespec &timestamp, char *strOut)
	Produce a text representation of the timestamp. More...
void	timePrint (const timespec &timestamp, const char *text=NULL)
	Print the time to stdout. More...
void	sleepTime (const timespec &duration)
	Put the current thread to sleep for a specified time. More...
void	sleepTime (time_t seconds, long int nanoseconds)
	Put the current thread to sleep for a specified time. More...
void	sleepMs (uint64_t milliseconds)
	Put the current thread to sleep for a specified number of milliseconds. More...
void	sleepUs (uint64_t microseconds)
	Put the current thread to sleep for a specified number of microseconds. More...
void	sleepNs (uint64_t nanoseconds)
	Put the current thread to sleep for a specified number of nanoseconds. More...

Detailed Description

Timestamping operations for measuring the timing of CPU code.

Function Documentation

apptime() [1/2]

float apptime ( )

inline

Retrieve the elapsed time since the process started (in seconds).

apptime() [2/2]

void apptime ( timespec *  a )

inline

Retrieve the elapsed time since the process started.

apptime_nano()

uint64_t apptime_nano ( )

inline

Retrieve the elapsed time since the process started (in nanoseconds).

sleepMs()

void sleepMs ( uint64_t  milliseconds )

inline

Put the current thread to sleep for a specified number of milliseconds.

sleepNs()

void sleepNs ( uint64_t  nanoseconds )

inline

Put the current thread to sleep for a specified number of nanoseconds.

sleepTime() [1/2]

void sleepTime ( const timespec &  duration )

inline

Put the current thread to sleep for a specified time.

sleepTime() [2/2]

void sleepTime ( time_t  seconds, long int  nanoseconds  )

inline

Put the current thread to sleep for a specified time.

sleepUs()

void sleepUs ( uint64_t  microseconds )

inline

Put the current thread to sleep for a specified number of microseconds.

timeAdd()

timespec timeAdd ( const timespec &  a, const timespec &  b  )

inline

Add two times together.

timeCmp()

int timeCmp ( const timespec &  a, const timespec &  b  )

inline

Compare two timestamps.

Returns

0, if timestamp A equals timestamp B >0, if timestamp A is greater than timestamp B <0, if timestamp A is less than timestamp B

timeDiff() [1/2]

timespec timeDiff ( const timespec &  start, const timespec &  end  )

inline

Find the difference between two timestamps.

timeDiff() [2/2]

void timeDiff ( const timespec &  start, const timespec &  end, timespec *  result  )

inline

Find the difference between two timestamps.

timeDouble() [1/2]

double timeDouble ( )

inline

Get current timestamp as 64-bit double (in milliseconds).

timeDouble() [2/2]

double timeDouble ( const timespec &  a )

inline

Convert to 64-bit double (in milliseconds).

timeFloat()

float timeFloat ( const timespec &  a )

inline

Convert to 32-bit float (in milliseconds).

timeNew() [1/2]

timespec timeNew ( long int  nanoseconds )

inline

Return an initialized timespec

timeNew() [2/2]

timespec timeNew ( time_t  seconds, long int  nanoseconds  )

inline

Return an initialized timespec

timePrint()

void timePrint ( const timespec &  timestamp, const char *  text = NULL  )

inline

Print the time to stdout.

timestamp() [1/2]

timespec timestamp ( )

inline

Retrieve a timestamp of the current system time.

timestamp() [2/2]

void timestamp ( timespec *  timestampOut )

inline

Retrieve a timestamp of the current system time.

timeStr()

char* timeStr ( const timespec &  timestamp, char *  strOut  )

inline

Produce a text representation of the timestamp.

timeZero()

timespec timeZero ( )

inline

Return a blank timespec that's been zero'd.