X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Ftest_urcu_lfq.c;h=c648f768f9c144c844a10a74eb174e0f1be5015b;hp=b61a7d4815788af2bcd9e197dc319a8eb053791a;hb=a39bde3b86162601c7d670d97a962fc3f029fdbd;hpb=92cfe223501f564d3bd726a6c580702daeef4198

diff --git a/tests/test_urcu_lfq.c b/tests/test_urcu_lfq.c
index b61a7d4..c648f76 100644
--- a/tests/test_urcu_lfq.c
+++ b/tests/test_urcu_lfq.c
@@ -34,10 +34,11 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <assert.h>
-#include <sched.h>
 #include <errno.h>
 
 #include <urcu/arch.h>
+#include <urcu/tls-compat.h>
+#include "cpuset.h"
 
 #ifdef __linux__
 #include <syscall.h>
@@ -66,7 +67,6 @@ 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;
 
@@ -77,9 +77,9 @@ static unsigned long duration;
 /* read-side C.S. duration, in loops */
 static unsigned long wdelay;
 
-static inline void loop_sleep(unsigned long l)
+static inline void loop_sleep(unsigned long loops)
 {
-	while(l-- != 0)
+	while (loops-- != 0)
 		caa_cpu_relax();
 }
 
@@ -97,17 +97,12 @@ static int use_affinity = 0;
 
 pthread_mutex_t affinity_mutex = PTHREAD_MUTEX_INITIALIZER;
 
-#ifndef HAVE_CPU_SET_T
-typedef unsigned long cpu_set_t;
-# define CPU_ZERO(cpuset) do { *(cpuset) = 0; } while(0)
-# define CPU_SET(cpu, cpuset) do { *(cpuset) |= (1UL << (cpu)); } while(0)
-#endif
-
 static void set_affinity(void)
 {
+#if HAVE_SCHED_SETAFFINITY
 	cpu_set_t mask;
-	int cpu;
-	int ret;
+	int cpu, ret;
+#endif /* HAVE_SCHED_SETAFFINITY */
 
 	if (!use_affinity)
 		return;
@@ -148,15 +143,20 @@ static int test_duration_enqueue(void)
 	return !test_stop;
 }
 
-static unsigned long long __thread nr_dequeues;
-static unsigned long long __thread nr_enqueues;
+static DEFINE_URCU_TLS(unsigned long long, nr_dequeues);
+static DEFINE_URCU_TLS(unsigned long long, nr_enqueues);
 
-static unsigned long long __thread nr_successful_dequeues;
-static unsigned long long __thread nr_successful_enqueues;
+static DEFINE_URCU_TLS(unsigned long long, nr_successful_dequeues);
+static DEFINE_URCU_TLS(unsigned long long, 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)
@@ -164,7 +164,8 @@ void *thr_enqueuer(void *_count)
 	unsigned long long *count = _count;
 
 	printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n",
-			"enqueuer", pthread_self(), (unsigned long)gettid());
+			"enqueuer", (unsigned long) pthread_self(),
+			(unsigned long) gettid());
 
 	set_affinity();
 
@@ -176,50 +177,54 @@ 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++;
+		URCU_TLS(nr_successful_enqueues)++;
 
-		if (unlikely(wdelay))
+		if (caa_unlikely(wdelay))
 			loop_sleep(wdelay);
 fail:
-		nr_enqueues++;
-		if (unlikely(!test_duration_enqueue()))
+		URCU_TLS(nr_enqueues)++;
+		if (caa_unlikely(!test_duration_enqueue()))
 			break;
 	}
 
 	rcu_unregister_thread();
 
-	count[0] = nr_enqueues;
-	count[1] = nr_successful_enqueues;
+	count[0] = URCU_TLS(nr_enqueues);
+	count[1] = URCU_TLS(nr_successful_enqueues);
 	printf_verbose("enqueuer thread_end, thread id : %lx, tid %lu, "
 		       "enqueues %llu successful_enqueues %llu\n",
-		       pthread_self(), (unsigned long)gettid(), nr_enqueues,
-		       nr_successful_enqueues);
+		       (unsigned long) pthread_self(),
+			(unsigned long) gettid(),
+		       URCU_TLS(nr_enqueues), URCU_TLS(nr_successful_enqueues));
 	return ((void*)1);
 
 }
 
+static
+void free_node_cb(struct rcu_head *head)
+{
+	struct test *node =
+		caa_container_of(head, struct test, rcu);
+	free(node);
+}
+
 void *thr_dequeuer(void *_count)
 {
 	unsigned long long *count = _count;
-	int ret;
 
 	printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n",
-			"dequeuer", pthread_self(), (unsigned long)gettid());
+			"dequeuer", (unsigned long) pthread_self(),
+			(unsigned long) gettid());
 
 	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)
@@ -228,57 +233,63 @@ void *thr_dequeuer(void *_count)
 	cmm_smp_mb();
 
 	for (;;) {
-		struct cds_lfq_node_rcu *node;
+		struct cds_lfq_node_rcu *qnode;
 
 		rcu_read_lock();
-		node = cds_lfq_dequeue_rcu(&q);
+		qnode = cds_lfq_dequeue_rcu(&q);
 		rcu_read_unlock();
 
-		if (node) {
-			defer_rcu(free, node);
-			nr_successful_dequeues++;
+		if (qnode) {
+			struct test *node;
+
+			node = caa_container_of(qnode, struct test, list);
+			call_rcu(&node->rcu, free_node_cb);
+			URCU_TLS(nr_successful_dequeues)++;
 		}
 
-		nr_dequeues++;
-		if (unlikely(!test_duration_dequeue()))
+		URCU_TLS(nr_dequeues)++;
+		if (caa_unlikely(!test_duration_dequeue()))
 			break;
-		if (unlikely(rduration))
+		if (caa_unlikely(rduration))
 			loop_sleep(rduration);
 	}
 
 	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,
-		       nr_successful_dequeues);
-	count[0] = nr_dequeues;
-	count[1] = nr_successful_dequeues;
+		       (unsigned long) pthread_self(),
+			(unsigned long) gettid(),
+		       URCU_TLS(nr_dequeues), URCU_TLS(nr_successful_dequeues));
+	count[0] = URCU_TLS(nr_dequeues);
+	count[1] = URCU_TLS(nr_successful_dequeues);
 	return ((void*)2);
 }
 
 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) {
+		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)
 {
-	printf("Usage : %s nr_dequeuers nr_enqueuers duration (s)", argv[0]);
-	printf(" [-d delay] (enqueuer period (in loops))");
-	printf(" [-c duration] (dequeuer period (in loops))");
-	printf(" [-v] (verbose output)");
-	printf(" [-a cpu#] [-a cpu#]... (affinity)");
+	printf("Usage : %s nr_dequeuers nr_enqueuers duration (s) <OPTIONS>\n",
+		argv[0]);
+	printf("OPTIONS:\n");
+	printf("	[-d delay] (enqueuer period (in loops))\n");
+	printf("	[-c duration] (dequeuer period (in loops))\n");
+	printf("	[-v] (verbose output)\n");
+	printf("	[-a cpu#] [-a cpu#]... (affinity)\n");
 	printf("\n");
 }
 
@@ -357,13 +368,18 @@ int main(int argc, char **argv)
 	printf_verbose("Writer delay : %lu loops.\n", rduration);
 	printf_verbose("Reader duration : %lu loops.\n", wdelay);
 	printf_verbose("thread %-6s, thread id : %lx, tid %lu\n",
-			"main", pthread_self(), (unsigned long)gettid());
+			"main", (unsigned long) pthread_self(),
+			(unsigned long) gettid());
 
 	tid_enqueuer = malloc(sizeof(*tid_enqueuer) * nr_enqueuers);
 	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, call_rcu);
+	err = create_all_cpu_call_rcu_data(0);
+	if (err) {
+		printf("Per-CPU call_rcu() worker threads unavailable. Using default global worker thread.\n");
+	}
 
 	next_aff = 0;
 
@@ -432,6 +448,7 @@ 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);