Use stub where pthread_setaffinity_np() isn't available. define cpu_set_t to cpuset_t on Free/NetB…

src/utils/SkThreadUtils_pthread_linux.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef _GNU_SOURCE
 #define _GNU_SOURCE //for pthread_setaffinity_np
 #endif
 
 #include "SkThreadUtils.h"
 #include "SkThreadUtils_pthread.h"
 
 #include <pthread.h>
+#ifdef __FreeBSD__
+#include <pthread_np.h>
+#endif
+
+#if defined(__FreeBSD__) || defined(__NetBSD__)
+#define cpu_set_t cpuset_t

[bungeman-skia, 2013/08/06 20:44:12]

isn't this what typedef is for?

+#endif
+
+#ifndef CPU_COUNT
+static int CPU_COUNT(cpu_set_t *set) {
+    int count = 0;
+    for (int i = 0; i < CPU_SETSIZE; i++) {
+        if (CPU_ISSET(i, set)) {
+            count++;
+        }
+    }
+    return count;
+}
+#endif /* !CPU_COUNT */
 
 static int nth_set_cpu(unsigned int n, cpu_set_t* cpuSet) {
     n %= CPU_COUNT(cpuSet);
     for (unsigned int setCpusSeen = 0, currentCpu = 0; true; ++currentCpu) {
         if (CPU_ISSET(currentCpu, cpuSet)) {
             ++setCpusSeen;
             if (setCpusSeen > n) {
                 return currentCpu;
             }
         }
@@ skipping 11 matching lines @@
         return false;
     }
 
     cpu_set_t cpuset;
     CPU_ZERO(&cpuset);
     CPU_SET(nth_set_cpu(processor, &parentCpuset), &cpuset);
     return 0 == pthread_setaffinity_np(pthreadData->fPThread,
                                        sizeof(cpu_set_t),
                                        &cpuset);
 }