X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Ftest_qsbr.c;h=4f19c72aa3c7d0bdb292d55a3525f0fcea458077;hp=89a94235eedb3d8ddf0d1e542e45017daf503ee2;hb=5481ddb381061bda64aebc039900d21cac6a6caf;hpb=833dbdb633ba44bfb71b4b965a83096d8e4e827b

diff --git a/tests/test_qsbr.c b/tests/test_qsbr.c
index 89a9423..4f19c72 100644
--- a/tests/test_qsbr.c
+++ b/tests/test_qsbr.c
@@ -3,7 +3,7 @@
  *
  * Userspace RCU library - test program
  *
- * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,6 +21,7 @@
  */
 
 #define _GNU_SOURCE
+#include "../config.h"
 #include <stdio.h>
 #include <pthread.h>
 #include <stdlib.h>
@@ -32,11 +33,9 @@
 #include <assert.h>
 #include <sys/syscall.h>
 #include <sched.h>
+#include <errno.h>
 
-#include "../arch.h"
-
-/* Make this big enough to include the POWER5+ L3 cacheline size of 256B */
-#define CACHE_LINE_SIZE 4096
+#include <urcu/arch.h>
 
 /* hardcoded number of CPUs */
 #define NR_CPUS 16384
@@ -56,8 +55,12 @@ static inline pid_t gettid(void)
 }
 #endif
 
+#ifndef DYNAMIC_LINK_TEST
 #define _LGPL_SOURCE
-#include "../urcu-qsbr.h"
+#else
+#define debug_yield_read()
+#endif
+#include "urcu-qsbr.h"
 
 struct test_array {
 	int a;
@@ -74,6 +77,9 @@ static unsigned long duration;
 /* read-side C.S. duration, in loops */
 static unsigned long rduration;
 
+/* write-side C.S. duration, in loops */
+static unsigned long wduration;
+
 static inline void loop_sleep(unsigned long l)
 {
 	while(l-- != 0)
@@ -94,6 +100,12 @@ 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)
 {
 	cpu_set_t mask;
@@ -103,6 +115,7 @@ static void set_affinity(void)
 	if (!use_affinity)
 		return;
 
+#if HAVE_SCHED_SETAFFINITY
 	ret = pthread_mutex_lock(&affinity_mutex);
 	if (ret) {
 		perror("Error in pthread mutex lock");
@@ -116,7 +129,12 @@ static void set_affinity(void)
 	}
 	CPU_ZERO(&mask);
 	CPU_SET(cpu, &mask);
+#if SCHED_SETAFFINITY_ARGS == 2
+	sched_setaffinity(0, &mask);
+#else
 	sched_setaffinity(0, sizeof(mask), &mask);
+#endif
+#endif /* HAVE_SCHED_SETAFFINITY */
 }
 
 /*
@@ -212,27 +230,31 @@ void *thr_reader(void *_count)
 	while (!test_go)
 	{
 	}
-	smp_mb();
+	cmm_smp_mb();
 
 	for (;;) {
-		_rcu_read_lock();
-		local_ptr = _rcu_dereference(test_rcu_pointer);
+		rcu_read_lock();
+		local_ptr = rcu_dereference(test_rcu_pointer);
 		debug_yield_read();
 		if (local_ptr)
 			assert(local_ptr->a == 8);
 		if (unlikely(rduration))
 			loop_sleep(rduration);
-		_rcu_read_unlock();
+		rcu_read_unlock();
 		nr_reads++;
 		/* QS each 1024 reads */
 		if (unlikely((nr_reads & ((1 << 10) - 1)) == 0))
-			_rcu_quiescent_state();
+			rcu_quiescent_state();
 		if (unlikely(!test_duration_read()))
 			break;
 	}
 
 	rcu_unregister_thread();
 
+	/* test extra thread registration */
+	rcu_register_thread();
+	rcu_unregister_thread();
+
 	*count = nr_reads;
 	printf_verbose("thread_end %s, thread id : %lx, tid %lu\n",
 			"reader", pthread_self(), (unsigned long)gettid());
@@ -253,12 +275,15 @@ void *thr_writer(void *_count)
 	while (!test_go)
 	{
 	}
-	smp_mb();
+	cmm_smp_mb();
 
 	for (;;) {
 		new = test_array_alloc();
 		new->a = 8;
-		old = _rcu_publish_content(&test_rcu_pointer, new);
+		old = rcu_xchg_pointer(&test_rcu_pointer, new);
+		if (unlikely(wduration))
+			loop_sleep(wduration);
+		synchronize_rcu();
 		/* can be done after unlock */
 		if (old)
 			old->a = 0;
@@ -284,6 +309,7 @@ void show_usage(int argc, char **argv)
 #endif
 	printf(" [-d delay] (writer period (us))");
 	printf(" [-c duration] (reader C.S. duration (in loops))");
+	printf(" [-e duration] (writer C.S. duration (in loops))");
 	printf(" [-v] (verbose output)");
 	printf(" [-a cpu#] [-a cpu#]... (affinity)");
 	printf("\n");
@@ -357,6 +383,13 @@ int main(int argc, char **argv)
 			}
 			wdelay = atol(argv[++i]);
 			break;
+		case 'e':
+			if (argc < i + 2) {
+				show_usage(argc, argv);
+				return -1;
+			}
+			wduration = atol(argv[++i]);
+			break;
 		case 'v':
 			verbose_mode = 1;
 			break;
@@ -391,7 +424,7 @@ int main(int argc, char **argv)
 			exit(1);
 	}
 
-	smp_mb();
+	cmm_smp_mb();
 
 	test_go = 1;
 
@@ -414,10 +447,10 @@ int main(int argc, char **argv)
 	
 	printf_verbose("total number of reads : %llu, writes %llu\n", tot_reads,
 	       tot_writes);
-	printf("SUMMARY %-25s testdur %4lu nr_readers %3u rdur %6lu "
+	printf("SUMMARY %-25s testdur %4lu nr_readers %3u rdur %6lu wdur %6lu "
 		"nr_writers %3u "
 		"wdelay %6lu nr_reads %12llu nr_writes %12llu nr_ops %12llu\n",
-		argv[0], duration, nr_readers, rduration,
+		argv[0], duration, nr_readers, rduration, wduration,
 		nr_writers, wdelay, tot_reads, tot_writes,
 		tot_reads + tot_writes);
 	test_array_free(test_rcu_pointer);