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Make sure the rwlock and per thread lock could detect races
[userspace-rcu.git]
/
test_perthreadlock.c
diff --git
a/test_perthreadlock.c
b/test_perthreadlock.c
index 076d2473976da65fc0fad262aa409e9fc8f8177f..7b6a65c8c6fb18a68531e13c19587e44aad6729c 100644
(file)
--- a/
test_perthreadlock.c
+++ b/
test_perthreadlock.c
@@
-65,39
+65,25
@@
struct per_thread_lock {
static struct per_thread_lock *per_thread_lock;
static struct per_thread_lock *per_thread_lock;
-static volatile int test_go;
+static volatile int test_go
, test_stop
;
static int wdelay;
static int wdelay;
-static struct test_array test_array = { 8 };
+static
volatile
struct test_array test_array = { 8 };
static unsigned long duration;
static unsigned long duration;
-static time_t start_time;
-static unsigned long __thread duration_interval;
-#define DURATION_TEST_DELAY_WRITE 4
-#define DURATION_TEST_DELAY_READ 100
/*
* returns 0 if test should end.
*/
static int test_duration_write(void)
{
/*
* returns 0 if test should end.
*/
static int test_duration_write(void)
{
- if (duration_interval++ >= DURATION_TEST_DELAY_WRITE) {
- duration_interval = 0;
- if (time(NULL) - start_time >= duration)
- return 0;
- }
- return 1;
+ return !test_stop;
}
static int test_duration_read(void)
{
}
static int test_duration_read(void)
{
- if (duration_interval++ >= DURATION_TEST_DELAY_READ) {
- duration_interval = 0;
- if (time(NULL) - start_time >= duration)
- return 0;
- }
- return 1;
+ return !test_stop;
}
static unsigned long long __thread nr_writes;
}
static unsigned long long __thread nr_writes;
@@
-176,6
+162,7
@@
void *thr_writer(void *data)
for (tidx = 0; tidx < nr_readers; tidx++) {
pthread_mutex_lock(&per_thread_lock[tidx].lock);
}
for (tidx = 0; tidx < nr_readers; tidx++) {
pthread_mutex_lock(&per_thread_lock[tidx].lock);
}
+ test_array.a = 0;
test_array.a = 8;
for (tidx = nr_readers - 1; tidx >= 0; tidx--) {
pthread_mutex_unlock(&per_thread_lock[tidx].lock);
test_array.a = 8;
for (tidx = nr_readers - 1; tidx >= 0; tidx--) {
pthread_mutex_unlock(&per_thread_lock[tidx].lock);
@@
-285,10
+272,14
@@
int main(int argc, char **argv)
exit(1);
}
exit(1);
}
- start_time = time(NULL);
- test_go = 1;
smp_mb();
smp_mb();
+ test_go = 1;
+
+ sleep(duration);
+
+ test_stop = 1;
+
for (i = 0; i < nr_readers; i++) {
err = pthread_join(tid_reader[i], &tret);
if (err != 0)
for (i = 0; i < nr_readers; i++) {
err = pthread_join(tid_reader[i], &tret);
if (err != 0)
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