[ltt-dev] [PATCH 3/3] pitest-4: Use time_t instead of unsigned long / int.

Gui Jianfeng guijianfeng at cn.fujitsu.com
Thu Oct 21 23:37:33 EDT 2010


Please ignore this one.

Gui Jianfeng wrote:
> The test was using a mish-mash of unsigned long and int types to pass
> data between the thread and evaluate values, so the problem lied in
> potential truncation of data.
> 
> time_t is a 32-bit type or 64-bit type on some OSes, so it's best to
> remain consistent with a single fixed data type instead of moving
> between int (which can be 32-bit or 64-bit, depending on the OS and
> architecture) and unsigned long (which can be 32-bit or 64-bit,
> depending on the OS and architecture).
> 
> Signed-off-by: Gui Jianfeng <guijianfeng at cn.fujitsu.com>
> ---
>  .../functional/threads/pi_test/pitest-4.c          |   22 ++-----------------
>  1 files changed, 3 insertions(+), 19 deletions(-)
> 
> diff --git a/testcases/open_posix_testsuite/functional/threads/pi_test/pitest-4.c b/testcases/open_posix_testsuite/functional/threads/pi_test/pitest-4.c
> index e6bff3f..da6623e 100644
> --- a/testcases/open_posix_testsuite/functional/threads/pi_test/pitest-4.c
> +++ b/testcases/open_posix_testsuite/functional/threads/pi_test/pitest-4.c
> @@ -176,7 +176,6 @@ void *thread_sample(void *arg)
>  
>  void *thread_tb1(void *arg)
>  {
> -	unsigned long timeoutsec; 
>  	struct timespec boost_time;
>  	double t0, t1;
>  	int rc;
> @@ -188,8 +187,7 @@ void *thread_tb1(void *arg)
>  
>  	pthread_mutex_lock(&mutex2);
>   
> -	timeoutsec = *(unsigned long*) arg;
> -	boost_time.tv_sec = time(NULL) + (time_t)timeoutsec;
> +	boost_time.tv_sec = time(NULL) + *(time_t*) arg;
>  	boost_time.tv_nsec = 0;
>  	t0 = seconds_read();
>  	rc = pthread_mutex_timedlock(&mutex1, &boost_time);	
> @@ -198,12 +196,6 @@ void *thread_tb1(void *arg)
>  	DPRINTF(stdout, "#EVENT %f TB1 Waited on mutex1 for %.2f s\n", 
>  		t1 - base_time, t1 - t0);
>  
> -	if (rc == 0) {
> -		EPRINTF("UNRESOLVED: Thread TB1: lock mutex1 success, "
> -			"slept %f", t1 - t0);
> -		exit(UNRESOLVED);
> -	}
> -
>  	if (rc != ETIMEDOUT) {
>  		EPRINTF("FAIL: Thread TB1: lock returned %d %s, "
>  			"slept %f", rc, strerror(rc), t1 - t0);
> @@ -217,7 +209,6 @@ void *thread_tb1(void *arg)
>  
>  void *thread_tb2(void *arg)
>  {
> -	unsigned long timeoutsec; 
>  	struct timespec boost_time;
>  	double t0, t1;
>  	int rc;
> @@ -227,8 +218,7 @@ void *thread_tb2(void *arg)
>  	DPRINTF(stdout, "#EVENT %f Thread TB2 Started\n", 
>  		seconds_read() - base_time);
>  
> -	timeoutsec = *(unsigned long*) arg;
> -	boost_time.tv_sec = time(NULL) + (time_t)timeoutsec;
> +	boost_time.tv_sec = time(NULL) + *(time_t*) arg;
>  	boost_time.tv_nsec = 0;
>  
>  	t0 = seconds_read();
> @@ -238,12 +228,6 @@ void *thread_tb2(void *arg)
>  	DPRINTF(stdout, "#EVENT %f Thread TB2 Waited on mutex2 for %.2f s\n", 
>  		t1 - base_time, t1 - t0);
>  
> -	if (rc == 0) {
> -		EPRINTF("UNRESOLVED: Thread TB2: lock mutex2 success, "
> -			"slept %f", t1 - t0);
> -		exit(UNRESOLVED);
> -	}
> -
>  	if (rc != ETIMEDOUT) {
>  		EPRINTF("FAIL: Thread TB2: lock mutex2 returned %d %s, "
>  			"slept %f", rc, strerror(rc), t1 - t0);
> @@ -319,7 +303,7 @@ int main(int argc, char **argv)
>  	sleep(base_time + multiplier * 30 - seconds_read());
>  
>  	/* Start TB1 thread (the lowest priority thread) */
> -	int timeout = multiplier * 40;
> +	time_t timeout = multiplier * 40;
>  	rc = pthread_create(&threadtb1, &threadattr, thread_tb1, 
>  			    &timeout);
>          if (rc != 0) {

-- 
Regards
Gui Jianfeng




More information about the lttng-dev mailing list