os.h File Reference

Common operating system functions. More...

#include <stdint.h>

Functions
double	getCurrentClock ()
	Returns high resolution time stamp in seconds. (MT-Safe)
int	getLogicalCpuCount ()
	Returns system logical CPU count. (MT-Safe)
int	getPhysicalCpuCount ()
	Returns system physical CPU count. (MT-Safe)
int	getPerformanceCpuCount ()
	Returns system performance CPU count. (MT-Safe)
int64_t	getTotalRamSize ()
	Returns system total physical RAM size. (MT-Safe)
int64_t	getFreeRamSize ()
	Returns system free physical RAM size. (MT-Safe)
char *	getCpuName ()
	Returns system CPU name string. (MT-Safe)

Detailed Description

Common operating system functions.

Function Documentation

getCurrentClock()

double getCurrentClock

(

)

Returns high resolution time stamp in seconds. (MT-Safe)

That can be used for time-interval measurements.

Returns

The time since some unspecified starting point.

getLogicalCpuCount()

int getLogicalCpuCount

(

)

Returns system logical CPU count. (MT-Safe)

Usefull for a background thread pool thread count.

getPhysicalCpuCount()

int getPhysicalCpuCount

(

)

Returns system physical CPU count. (MT-Safe)

Usefull for a foreground thread pool thread count.

getPerformanceCpuCount()

int getPerformanceCpuCount

(

)

Returns system performance CPU count. (MT-Safe)

Usefull for a foreground thread pool thread count.

getTotalRamSize()

int64_t getTotalRamSize

(

)

Returns system total physical RAM size. (MT-Safe)

Usefull for an OS information logging.

Returns

The total RAM size in bytes on success, otherwise -1.

getFreeRamSize()

int64_t getFreeRamSize

(

)

Returns system free physical RAM size. (MT-Safe)

Usefull for an OS information logging.

Returns

The free RAM size in bytes on success, otherwise -1.

getCpuName()

char * getCpuName

(

)

Returns system CPU name string. (MT-Safe)

Usefull for an OS information logging.

Note

You should free() the allocated string manually.

Returns

An allocated CPU name string.