Collaboration diagram for Time stamp via TSC utility routines.:

Functions
int	getCpuTicks ()
int	ccurTSC_printf (const char *fmt,...)
int	ccurTSC_fprintf (FILE fp, const char fmt,...)

Detailed Description

This API is used by program running on the Real-Time host to print messages prefixed with a TSC time stamp.
The time stamp is consistent across all processes running under SimWB.

Function Documentation

◆ getCpuTicks()

int getCpuTicks ( )

Get the speed of the system so we can convert TSC ticks to micro seconds.
Warning: this function is non deterministic since it reads the /proc file system to get the CPU speed. Use the macro _rdtsc() defined in tscutils.h to get the TSC count.
To time a secion of code you would use:

int cputicks = getCpuTicks();
unsigned long long t1;
t1 = _rdtsc();
   .
   .
   Your code here
   .
   .
t2 = _rdtsc();
usec = (t2-t1)/cputicks; // usec will be the time elapsed in micro seconds

Returns: System speed in MHz.

◆ ccurTSC_printf()

int ccurTSC_printf	(	const char *	fmt,
			... )

Print to stderr a la printf and prefix with a TSC time stamp

Parameters

fmt	String with format specifier.

Returns: The length of the string that was printed.

◆ ccurTSC_fprintf()

int ccurTSC_fprintf	(	FILE *	fp,
		const char *	fmt,
			... )

Print to file pointer fp a la printf and prefix with a TSC time stamp