#endif
#ifndef mark_rcu_quiescent_state
-#define mark_rcu_quiescent_state() do ; while (0)
+#define mark_rcu_quiescent_state() do {} while (0)
#endif /* #ifdef mark_rcu_quiescent_state */
#ifndef put_thread_offline
-#define put_thread_offline() do ; while (0)
-#define put_thread_online() do ; while (0)
-#define put_thread_online_delay() do ; while (0)
+#define put_thread_offline() do {} while (0)
+#define put_thread_online() do {} while (0)
+#define put_thread_online_delay() do {} while (0)
#else /* #ifndef put_thread_offline */
#define put_thread_online_delay() synchronize_rcu()
#endif /* #else #ifndef put_thread_offline */
* Performance test.
*/
+static
void *rcu_read_perf_test(void *arg)
{
int i;
return (NULL);
}
+static
void *rcu_update_perf_test(void *arg)
{
long long n_updates_local = 0;
return NULL;
}
+static
void perftestinit(void)
{
init_per_thread(n_reads_pt, 0LL);
uatomic_set(&nthreadsrunning, 0);
}
+static
int perftestrun(int nthreads, int nreaders, int nupdaters)
{
int t;
return 0;
}
+static
int perftest(int nreaders, int cpustride)
{
int i;
return perftestrun(i + 1, nreaders, 1);
}
+static
int rperftest(int nreaders, int cpustride)
{
int i;
return perftestrun(i, nreaders, 0);
}
+static
int uperftest(int nupdaters, int cpustride)
{
int i;
int garbage = 0;
+static
void *rcu_read_stress_test(void *arg)
{
int i;
static pthread_mutex_t call_rcu_test_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t call_rcu_test_cond = PTHREAD_COND_INITIALIZER;
+static
void rcu_update_stress_test_rcu(struct rcu_head *head)
{
int ret;
}
}
+static
void *rcu_update_stress_test(void *arg)
{
int i;
strerror(errno));
abort();
}
+ rcu_register_thread();
call_rcu(&rh, rcu_update_stress_test_rcu);
+ rcu_unregister_thread();
+ /*
+ * Our MacOS X test machine with the following
+ * config:
+ * 15.6.0 Darwin Kernel Version 15.6.0
+ * root:xnu-3248.60.10~1/RELEASE_X86_64
+ * appears to have issues with liburcu-signal
+ * signal being delivered on top of
+ * pthread_cond_wait. It seems to make the
+ * thread continue, and therefore corrupt the
+ * rcu_head. Work around this issue by
+ * unregistering the RCU read-side thread
+ * immediately after call_rcu (call_rcu needs
+ * us to be registered RCU readers).
+ */
ret = pthread_cond_wait(&call_rcu_test_cond,
&call_rcu_test_mutex);
if (ret) {
}
n_updates++;
}
+
return NULL;
}
+static
void *rcu_fake_update_stress_test(void *arg)
{
if (callrcu_type == CALLRCU_PERTHREAD) {
return NULL;
}
+static
int stresstest(int nreaders)
{
int i;
* Mainprogram.
*/
+static
void usage(int argc, char *argv[])
{
diag("Usage: %s nreaders [ perf | rperf | uperf | stress ] [ stride ] [ callrcu_global | callrcu_percpu | callrcu_perthread ]\n", argv[0]);