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#include <stdio.h>
#include <stdlib.h>
#if defined (__NetBSD__) || defined(__OpenBSD__) || defined (__FreeBSD__) || defined (__FreeBSD_kernel__) || defined (__APPLE__)
#include <sys/param.h>
#include <sys/sysctl.h>
#elif defined(__linux__) || defined(__CYGWIN__) || defined(sun) || defined(__NETWARE__)
#include <unistd.h>
#elif defined(hpux) || defined(__hpux)
#include <sys/param.h>
#include <sys/pstat.h>
#endif
#if defined(__NETWARE__)
#include <sys/sysinfo.h>
#endif
#if defined(ENV_BEOS)
#include <be/kernel/OS.h>
#endif
#include "Common/MyTypes.h"
namespace NWindows
{
namespace NSystem
{
/************************ GetNumberOfProcessors ************************/
#if defined (__NetBSD__) || defined(__OpenBSD__)
UInt32 GetNumberOfProcessors() {
int mib[2], value;
int nbcpu = 1;
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
size_t len = sizeof(size_t);
if (sysctl(mib, 2, &value, &len, NULL, 0) >= 0)
if (value > nbcpu)
nbcpu = value;
return nbcpu;
}
#elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__)
UInt32 GetNumberOfProcessors() {
int nbcpu = 1;
size_t value;
size_t len = sizeof(value);
if (sysctlbyname("hw.ncpu", &value, &len, NULL, 0) == 0)
nbcpu = value;
return nbcpu;
}
#elif defined (__APPLE__)
UInt32 GetNumberOfProcessors() {
int nbcpu = 1,value;
size_t valSize = sizeof(value);
if (sysctlbyname ("hw.ncpu", &value, &valSize, NULL, 0) == 0)
nbcpu = value;
return nbcpu;
}
#elif defined(__linux__) || defined(__CYGWIN__) || defined(sun)
UInt32 GetNumberOfProcessors() {
int nbcpu = sysconf (_SC_NPROCESSORS_CONF);
if (nbcpu < 1) nbcpu = 1;
return nbcpu;
}
#elif defined(hpux) || defined(__hpux)
UInt32 GetNumberOfProcessors() {
struct pst_dynamic psd;
if (pstat_getdynamic(&psd, sizeof(psd), (size_t)1, 0) != -1)
return (UInt32)psd.psd_proc_cnt;
return 1;
}
#elif defined(__NETWARE__)
UInt32 GetNumberOfProcessors() {
// int nbcpu = get_nprocs_conf();
int nbcpu = get_nprocs();
if (nbcpu < 1) nbcpu = 1;
return nbcpu;
}
#elif defined(ENV_BEOS)
UInt32 GetNumberOfProcessors() {
system_info info;
get_system_info(&info);
int nbcpu = info.cpu_count;
if (nbcpu < 1) nbcpu = 1;
return nbcpu;
}
#else
#warning Generic GetNumberOfProcessors
UInt32 GetNumberOfProcessors() {
return 1;
}
#endif
/************************ GetRamSize ************************/
bool GetRamSize(UInt64 &size) {
size = (UInt64)(sizeof(size_t)) << 29;
bool isDefined = true;
#ifdef linux
FILE * f = fopen( "/proc/meminfo", "r" );
if (f)
{
char buffer[256];
unsigned long total;
size = 0;
while (fgets( buffer, sizeof(buffer), f ))
{
/* old style /proc/meminfo ... */
if (sscanf( buffer, "Mem: %lu", &total))
{
size += total;
}
/* new style /proc/meminfo ... */
if (sscanf(buffer, "MemTotal: %lu", &total))
size = ((UInt64)total)*1024;
}
fclose( f );
}
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__APPLE__) || defined(__OpenBSD__)
#ifdef HW_MEMSIZE
uint64_t val = 0; // support 2Gb+ RAM
int mib[2] = { CTL_HW, HW_MEMSIZE };
#elif defined(HW_PHYSMEM64)
uint64_t val = 0; // support 2Gb+ RAM
int mib[2] = { CTL_HW, HW_PHYSMEM64 };
#else // HW_MEMSIZE
unsigned int val = 0; // For old system
int mib[2] = { CTL_HW, HW_PHYSMEM };
#endif // HW_MEMSIZE
size_t size_sys = sizeof(val);
sysctl(mib, 2, &val, &size_sys, NULL, 0);
if (val) size = val;
#elif defined(__CYGWIN__)
unsigned long pagesize=sysconf(_SC_PAGESIZE); // returns 65536 => OK
// see http://readlist.com/lists/cygwin.com/cygwin/0/3313.html
unsigned long maxpages=sysconf(_SC_PHYS_PAGES);
size = ((UInt64)pagesize)*maxpages;
#elif defined ( sun ) || defined(__NETWARE__)
unsigned long pagesize=sysconf(_SC_PAGESIZE);
unsigned long maxpages=sysconf(_SC_PHYS_PAGES);
size = ((UInt64)pagesize)*maxpages;
#elif defined(hpux) || defined(__hpux)
struct pst_static pst;
union pstun pu;
pu.pst_static = &pst;
if ( pstat( PSTAT_STATIC, pu, (size_t)sizeof(pst), (size_t)0, 0 ) != -1 ) {
size = ((UInt64)pst.physical_memory)*pst.page_size;
}
#elif defined(ENV_BEOS)
system_info info;
get_system_info(&info);
size = info.max_pages;
size *= 4096;
#else
#warning Generic GetRamSize
isDefined = false;
#endif
return isDefined;
}
}
}
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