DosEstimateFreqCPU

This software is a dynalink library that estimates clock frequency of all available CPUs on 32-bit OS/2 environment.

It can be used any 32-bit development suites that can issue OS/2 APIs such as emx/gcc, VisualAge C++ or Watcom C/C++.

Function call

Estimates clock frequency of all available CPUs.

Syntax

#define INCL_BASE
#include <os2.h>
#include "FREQCPU.h"
 
APIRET ulrc = DosEstimateFreqCPU(PCPUFREQUENCY pxCPUFrequency);

Parameters

pxCPUFrequency (PCPUFREQUENCY) - output

Pointer to structure that estimated clock frequencies will be set to.

Return Code

ulrc (APIRET) - return

Return codes.

!NO_ERROR Error.

NO_ERROR Successful completion.

Remarks

This function estimates clock frequency of all available CPUs. Obtained frequency will be set to CPUFREQUENCY structure:

/* CPU frequency information structure */
typedef struct _CPUFREQUENCY
{
    ULONG ulNumCPUs;            /* # of available CPUs */
    FIXED afxFrequencyMHz[64];  /* frequency of each CPUs in FIXED MHz (65536 means 1.0) */
} CPUFREQUENCY, * PCPUFREQUENCY;

License

• GNU LGPL
• Author: Takayuki 'January June' Suwa / Beliefia Productions

Links

• [freqcpu_r111.zip] (2001-10-31)