From c76c0f017fa884c4b9a04ff7fa3b43d331c82d84 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Tue, 23 Feb 2010 14:21:48 -0500
Subject: Determine nthreads in dmnsn_new_scene().

---
 libdimension/raytrace.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

(limited to 'libdimension/raytrace.c')

diff --git a/libdimension/raytrace.c b/libdimension/raytrace.c
index 6721a9b..3fa873c 100644
--- a/libdimension/raytrace.c
+++ b/libdimension/raytrace.c
@@ -19,7 +19,6 @@
  *************************************************************************/
 
 #include "dimension_impl.h"
-#include <unistd.h> /* For sysconf */
 
 /*
  * Boilerplate for multithreading
@@ -109,20 +108,16 @@ static void *dmnsn_raytrace_scene_multithread_thread(void *ptr);
 static int
 dmnsn_raytrace_scene_multithread(dmnsn_raytrace_payload *payload)
 {
-  int i, j, nthreads = payload->scene->nthreads;
+  int i, j;
   void *ptr;
   int retval = 0;
   dmnsn_raytrace_payload *payloads;
   pthread_t *threads;
 
-  if (!nthreads) {
-    /* Find the number of processors/cores running (TODO: do this portably) */
-    nthreads = sysconf(_SC_NPROCESSORS_ONLN);
-    if (nthreads < 1) {
-      nthreads = 1;
-    }
-    /* End non-portable section */
-  }
+  unsigned int nthreads = payload->scene->nthreads;
+  /* Sanity check */
+  if (nthreads < 1)
+    nthreads = 1;
 
   payloads = malloc(nthreads*sizeof(dmnsn_raytrace_payload));
   if (!payloads) {
-- 
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