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* [LTP] [PATCH 2/3] pitest-3: Use time_t instead of unsigned long / int.
@ 2010-10-22  3:01 Gui Jianfeng
  0 siblings, 0 replies; only message in thread
From: Gui Jianfeng @ 2010-10-22  3:01 UTC (permalink / raw)
  To: Garrett Cooper; +Cc: ltp-list

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@cn.fujitsu.com>
---
 .../functional/threads/pi_test/pitest-3.c          |   10 +++-------
 1 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/testcases/open_posix_testsuite/functional/threads/pi_test/pitest-3.c b/testcases/open_posix_testsuite/functional/threads/pi_test/pitest-3.c
index 0826a55..07b3bb8 100644
--- a/testcases/open_posix_testsuite/functional/threads/pi_test/pitest-3.c
+++ b/testcases/open_posix_testsuite/functional/threads/pi_test/pitest-3.c
@@ -210,7 +210,6 @@ void *thread_sample(void *arg)
 
 void *thread_tb1(void *arg)
 {
-	unsigned long timeoutsec; 
 	struct timespec boost_time;
 	double t0, t1;
 	int rc;
@@ -220,8 +219,7 @@ void *thread_tb1(void *arg)
 	DPRINTF(stdout, "#EVENT %f Thread TB1 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) + *(unsigned long*) arg;
 	boost_time.tv_nsec = 0;
 
 	t0 = seconds_read();
@@ -240,7 +238,6 @@ void *thread_tb1(void *arg)
 
 void *thread_tb2(void *arg)
 {
-	unsigned long timeoutsec;
 	struct timespec boost_time;
 	double t0, t1;
 	int rc;
@@ -250,8 +247,7 @@ 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();
 	rc = pthread_mutex_timedlock(&mutex2, &boost_time);	
@@ -339,7 +335,7 @@ int main(int argc, char **argv)
 	sleep(base_time + multiplier * 30 - seconds_read());
 
 	/* Start TB1 thread (boosting thread) */
-	int timeout = multiplier * 20;
+	time_t timeout = multiplier * 20;
 	rc = pthread_create(&threadtb1, &threadattr, thread_tb1, 
 			    &timeout);
         if (rc != 0) {
-- 
1.7.0.4



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