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* eina: eina_cpu_count should be multiplatform. 

SVN revision: 41689
This commit is contained in:
Cedric BAIL 2009-08-11 14:11:36 +00:00
parent b69abd204f
commit ae1d5b38bb
1 changed files with 51 additions and 3 deletions
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54
legacy/eina/src/lib/eina_cpu.c
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@ -21,13 +21,26 @@
#endif
#ifdef EFL_HAVE_PTHREAD
# define _GNU_SOURCE
# include <sched.h>
# ifdef _WIN32
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# elif defined (__SUNPRO_C)
# include <unistd.h>
# elif defined (__FreeBSD) || defined (__OpenBSD__) || defined (__NetBSD__) || defined (__DragonFly__) || defined (__MacOSX__)
# include <unistd.h>
# elif defined (__linux__)
# define _GNU_SOURCE
# include <sched.h>
# endif
# include <pthread.h>
# define TH_MAX 8
#endif
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "eina_cpu.h"
/*============================================================================*
@ -111,6 +124,34 @@ EAPI Eina_Cpu_Features eina_cpu_features_get(void)
EAPI int eina_cpu_count(void)
{
#ifdef EFL_HAVE_PTHREAD
# if defined (_WIN32)
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
return sysinfo.dwNumberOfProcessors;
# elif defined (__SUNPRO_C)
return sysconf(_SC_NPROCESSORS_ONLN);
# elif defined (__FreeBSD) || defined (__OpenBSD__) || defined (__NetBSD__) || defined (__DragonFly__) || defined (__MacOSX__)
int mib[4];
size_t len;
int cpus;
mib[0] = CTL_HW;
mib[1] = HM_AVAILCPU;
sysctl(mib, 2, &cpus, &len, NULL, 0);
if (cpus < 1)
{
mib[1] = HW_NCPU;
sysctl(mib, 2, &cpus, &len, NULL, 0);
if (cpus < 1)
cpus = 1;
}
return cpus;
# elif defined (__linux__)
cpu_set_t cpu;
int i;
static int cpus = 0;
@ -119,13 +160,20 @@ EAPI int eina_cpu_count(void)
CPU_ZERO(&cpu);
if (sched_getaffinity(0, sizeof(cpu), &cpu) != 0)
return 1;
{
fprintf(stderr, "[Eina] could not get cpu affinity: %s\n", strerror(errno));
return 1;
}
for (i = 0; i < TH_MAX; i++)
{
if (CPU_ISSET(i, &cpu)) cpus = i + 1;
else break;
}
return cpus;
# else
# error "eina_cpu_count() error: Platform not supported"
# endif
#else
return 1;
#endif