#include "precompiled.h"

#include "ucpu.h"

#if OS_MACOSX
#include <sys/sysctl.h>
#endif

int ucpu_IsThrottlingPossible()
{
	return -1; // don't know
}

int ucpu_NumPackages()
{
#if OS_MACOSX
	int mib[]={CTL_HW, HW_NCPU};
	int ncpus;
	size_t len = sizeof(ncpus);
	if (sysctl(mib, 2, &ncpus, &len, NULL, 0) == -1)
		return -1; // don't know
	else
		return ncpus;
#else
	long res = sysconf(_SC_NPROCESSORS_CONF);
	if (res == -1)
		return 1;
	else
		return (int)res;
#endif
}

double ucpu_ClockFrequency()
{
	return -1; // don't know
}


// apparently not possible on non-Windows OSes because they seem to lack
// a CPU affinity API. see sysdep.h comment.
LibError ucpu_CallByEachCPU(CpuCallback cb, void* param)
{
	UNUSED2(cb);

/*
cpu_set_t currentCPU; 

while ( j < sysNumProcs ) 

{ 

CPU_ZERO(&currentCPU); 

CPU_SET(j, &currentCPU); 

if ( sched_setaffinity (0, sizeof (currentCPU), &currentCPU) 

== 0 ) 

{ 

sleep(0); // Ensure system to switch to the right
*/

	return ERR::NO_SYS;
}