Merge branch 'master' into urcu/ht-shrink

[urcu.git] / tests / test_urcu_lfq.c

diff --git a/tests/test_urcu_lfq.c b/tests/test_urcu_lfq.c
index cb50586ec3176ea6b4e3b100c8ba156d97295c38..5292ebd4c4f35e673b7e52588cc526c326fcb6be 100644 (file)
--- a/tests/test_urcu_lfq.c
+++ b/tests/test_urcu_lfq.c
@@ -66,6 +66,7 @@ static inline pid_t gettid(void)
 #endif
 #include <urcu.h>
 #include <urcu/cds.h>
+#include <urcu-defer.h>
 
 static volatile int test_go, test_stop;
 
@@ -156,6 +157,11 @@ static unsigned long long __thread nr_successful_enqueues;
 static unsigned int nr_enqueuers;
 static unsigned int nr_dequeuers;
 
+struct test {
+       struct cds_lfq_node_rcu list;
+       struct rcu_head rcu;
+};
+
 static struct cds_lfq_queue_rcu q;
 
 void *thr_enqueuer(void *_count)
@@ -175,12 +181,12 @@ void *thr_enqueuer(void *_count)
        cmm_smp_mb();
 
        for (;;) {
-               struct cds_lfq_node_rcu *node = malloc(sizeof(*node));
+               struct test *node = malloc(sizeof(*node));
                if (!node)
                        goto fail;
-               cds_lfq_node_init_rcu(node);
+               cds_lfq_node_init_rcu(&node->list);
                rcu_read_lock();
-               cds_lfq_enqueue_rcu(&q, node);
+               cds_lfq_enqueue_rcu(&q, &node->list);
                rcu_read_unlock();
                nr_successful_enqueues++;
 
@@ -204,20 +210,14 @@ fail:
 
 }
 
-static void rcu_free_node(struct rcu_head *head)
+static
+void free_node_cb(struct rcu_head *head)
 {
-       struct cds_lfq_node_rcu *node =
-               caa_container_of(head, struct cds_lfq_node_rcu, rcu_head);
+       struct test *node =
+               caa_container_of(head, struct test, rcu);
        free(node);
 }
 
-static void ref_release_node(struct urcu_ref *ref)
-{
-       struct cds_lfq_node_rcu *node =
-               caa_container_of(ref, struct cds_lfq_node_rcu, ref);
-       call_rcu(&node->rcu_head, rcu_free_node);
-}
-
 void *thr_dequeuer(void *_count)
 {
        unsigned long long *count = _count;
@@ -228,6 +228,11 @@ void *thr_dequeuer(void *_count)
 
        set_affinity();
 
+       ret = rcu_defer_register_thread();
+       if (ret) {
+               printf("Error in rcu_defer_register_thread\n");
+               exit(-1);
+       }
        rcu_register_thread();
 
        while (!test_go)
@@ -236,14 +241,16 @@ void *thr_dequeuer(void *_count)
        cmm_smp_mb();
 
        for (;;) {
-               struct cds_lfq_node_rcu *node;
+               struct cds_lfq_node_rcu *qnode;
+               struct test *node;
 
                rcu_read_lock();
-               node = cds_lfq_dequeue_rcu(&q);
+               qnode = cds_lfq_dequeue_rcu(&q);
+               node = caa_container_of(qnode, struct test, list);
                rcu_read_unlock();
 
                if (node) {
-                       urcu_ref_put(&node->ref, ref_release_node);
+                       call_rcu(&node->rcu, free_node_cb);
                        nr_successful_dequeues++;
                }
 
@@ -255,6 +262,7 @@ void *thr_dequeuer(void *_count)
        }
 
        rcu_unregister_thread();
+       rcu_defer_unregister_thread();
        printf_verbose("dequeuer thread_end, thread id : %lx, tid %lu, "
                       "dequeues %llu, successful_dequeues %llu\n",
                       pthread_self(), (unsigned long)gettid(), nr_dequeues,
@@ -264,25 +272,20 @@ void *thr_dequeuer(void *_count)
        return ((void*)2);
 }
 
-static void release_node(struct urcu_ref *ref)
-{
-       struct cds_lfq_node_rcu *node = caa_container_of(ref, struct cds_lfq_node_rcu, ref);
-       free(node);
-}
-
 void test_end(struct cds_lfq_queue_rcu *q, unsigned long long *nr_dequeues)
 {
-       struct cds_lfq_node_rcu *node;
+       struct cds_lfq_node_rcu *snode;
 
        do {
-               rcu_read_lock();
-               node = cds_lfq_dequeue_rcu(q);
-               rcu_read_unlock();
-               if (node) {
-                       urcu_ref_put(&node->ref, release_node);
+               snode = cds_lfq_dequeue_rcu(q);
+               if (snode) {
+                       struct test *node;
+
+                       node = caa_container_of(snode, struct test, list);
+                       free(node);     /* no more concurrent access */
                        (*nr_dequeues)++;
                }
-       } while (node);
+       } while (snode);
 }
 
 void show_usage(int argc, char **argv)
@@ -376,7 +379,9 @@ int main(int argc, char **argv)
        tid_dequeuer = malloc(sizeof(*tid_dequeuer) * nr_dequeuers);
        count_enqueuer = malloc(2 * sizeof(*count_enqueuer) * nr_enqueuers);
        count_dequeuer = malloc(2 * sizeof(*count_dequeuer) * nr_dequeuers);
-       cds_lfq_init_rcu(&q, ref_release_node);
+       cds_lfq_init_rcu(&q, call_rcu);
+       err = create_all_cpu_call_rcu_data(0);
+       assert(!err);
 
        next_aff = 0;
 
@@ -421,6 +426,8 @@ int main(int argc, char **argv)
        }
        
        test_end(&q, &end_dequeues);
+       err = cds_lfq_destroy_rcu(&q);
+       assert(!err);
 
        printf_verbose("total number of enqueues : %llu, dequeues %llu\n",
                       tot_enqueues, tot_dequeues);
@@ -443,6 +450,7 @@ int main(int argc, char **argv)
                       tot_successful_enqueues,
                       tot_successful_dequeues + end_dequeues);
 
+       free_all_cpu_call_rcu_data();
        free(count_enqueuer);
        free(count_dequeuer);
        free(tid_enqueuer);