static unsigned int next_aff = 0;
static int use_affinity = 0;
+pthread_mutex_t affinity_mutex = PTHREAD_MUTEX_INITIALIZER;
+
static void set_affinity(void)
{
cpu_set_t mask;
int cpu;
+ int ret;
if (!use_affinity)
return;
+ ret = pthread_mutex_lock(&affinity_mutex);
+ if (ret) {
+ perror("Error in pthread mutex lock");
+ exit(-1);
+ }
cpu = cpu_affinities[next_aff++];
+ ret = pthread_mutex_unlock(&affinity_mutex);
+ if (ret) {
+ perror("Error in pthread mutex unlock");
+ exit(-1);
+ }
CPU_ZERO(&mask);
CPU_SET(cpu, &mask);
sched_setaffinity(0, sizeof(mask), &mask);
}
-
-
/*
* returns 0 if test should end.
*/
for (;;) {
new = test_array_alloc();
- rcu_copy_mutex_lock();
- old = test_rcu_pointer;
- if (old)
- assert(old->a == 8);
new->a = 8;
old = _rcu_publish_content(&test_rcu_pointer, new);
- rcu_copy_mutex_unlock();
/* can be done after unlock */
if (old)
old->a = 0;