Use sched_getaffinity() rather than sysconf(_SC_NPROCESSORS_ONLN).

Also, abstract cpu counting into dedicated dmnsn_ncpus() function.

1 files changed, 2 insertions, 8 deletions

diff --git a/libdimension/scene.c b/libdimension/scene.c
index 10af1b2..c81f936 100644
--- a/libdimension/scene.c
+++ b/libdimension/scene.c
@@ -18,9 +18,8 @@
  * <http://www.gnu.org/licenses/>.                                       *
  *************************************************************************/
 
-#include "dimension.h"
+#include "dimension_impl.h"
 #include <stdlib.h>
-#include <unistd.h> /* For sysconf */
 
 /* Allocate an empty scene */
 dmnsn_scene *
@@ -35,12 +34,7 @@ dmnsn_new_scene()
   scene->lights          = dmnsn_new_array(sizeof(dmnsn_light *));
   scene->quality         = DMNSN_RENDER_FULL;
   scene->reclimit        = 5;
-
-  /* Find the number of processors/cores running (TODO: do this portably) */
-  int nprocs = sysconf(_SC_NPROCESSORS_ONLN);
-  if (nprocs < 1)
-    nprocs = 1;
-  scene->nthreads = nprocs;
+  scene->nthreads        = dmnsn_ncpus();
 
   return scene;
 }