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2009-08-19 Joel Sherrill <joel.sherrill@OARcorp.com>

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* psx09/init.c, psx09/psx09.scn: Correct test following decision of
	when not to change ssporadic scheduler so it does not touch a task's
	priority when it is holding a mutex or its priority would be impacted
	adversely.
This commit is contained in:
Joel Sherrill
2009-08-19 17:28:19 +00:00
parent 9f49b43378
commit c45ca10375
3 changed files with 38 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
testsuites/psxtests/ChangeLog
View File

@@ -1,3 +1,10 @@
2009-08-19 Joel Sherrill <joel.sherrill@OARcorp.com>
* psx09/init.c, psx09/psx09.scn: Correct test following decision of
when not to change ssporadic scheduler so it does not touch a task's
priority when it is holding a mutex or its priority would be impacted
adversely.
2009-08-19 Joel Sherrill <joel.sherrill@OARcorp.com>
* psxtime/main.c, psxtime/psxtime.scn, psxtime/test.c: Add test case

48
testsuites/psxtests/psx09/init.c
View File

@@ -52,6 +52,8 @@ void *POSIX_Init(
struct sched_param schedparam;
char buffer[ 80 ];
pthread_mutexattr_t attr;
time_t start;
time_t now;
puts( "\n\n*** POSIX TEST 9 ***" );
@@ -111,7 +113,6 @@ void *POSIX_Init(
empty_line();
status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam );
assert( !status );
@@ -135,10 +136,7 @@ void *POSIX_Init(
status = pthread_mutexattr_init( &attr );
assert( !status );
status = pthread_mutexattr_setprotocol( &attr, PTHREAD_PRIO_PROTECT );
assert( !status );
status = pthread_mutexattr_setprioceiling( &attr, MEDIUM_PRIORITY );
status = pthread_mutexattr_setprotocol( &attr, PTHREAD_PRIO_INHERIT );
assert( !status );
puts( "Init: Creating a mutex" );
@@ -154,25 +152,33 @@ void *POSIX_Init(
sprintf( buffer, " - new priority = %d", priority );
print_current_time( "Init: ", buffer );
/* go into a loop consuming CPU time to watch our priority lower */
/* go into a loop consuming CPU time to watch our priority NOT lower */
start = time( &start );
puts( "Init: pthread_mutex_lock acquire the lock" );
status = pthread_mutex_lock( &Mutex_id );
if ( status )
printf( "status = %d %s\n", status, strerror(status) );
assert( !status );
for ( ; ; ) {
status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam );
assert( !status );
if ( schedparam.sched_priority != LOW_PRIORITY )
continue;
if ( schedparam.sched_priority == LOW_PRIORITY ) {
puts( "ERROR - Init's priority lowered while holding mutex" );
rtems_test_exit(0);
}
now = time( &now );
if ( now - start > 3 )
break;
priority = schedparam.sched_priority;
sprintf( buffer, " - new priority = %d", priority );
print_current_time( "Init: ", buffer );
puts( "Init: pthread_mutex_lock acquire the lock" );
status = pthread_mutex_lock( &Mutex_id );
if ( status )
printf( "status = %d\n", status );
assert( !status );
status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam );
assert( !status );
@@ -183,20 +189,6 @@ void *POSIX_Init(
break;
}
/* now spin waiting for our budget to be replenished */
for ( ; ; ) {
status = pthread_getschedparam( pthread_self(), &schedpolicy, &schedparam );
assert( !status );
if ( schedparam.sched_priority == HIGH_PRIORITY )
break;
}
priority = schedparam.sched_priority;
sprintf( buffer, " - new priority = %d", priority );
print_current_time( "Init: ", buffer );
/* with this unlock we should be able to go to low priority */
puts( "Init: unlock mutex" );

22
testsuites/psxtests/psx09/psx09.scn
View File

@@ -3,20 +3,20 @@ Init's ID is 0x0b010001
Init: pthread_getschedparam - SUCCESSFUL
Init: Fri May 24 11:05:00 1996 - current priority = 2
Init: pthread_setschedparam - SUCCESSFUL (sporadic server)
Init: Fri May 24 11:05:00 1996 - new priority = 200
Init: Fri May 24 11:05:00 1996 - new priority = 100
Init: Fri May 24 11:05:00 1996 - new priority = 200
Init: Fri May 24 11:05:00 1996 - new priority = 100
Init: Fri May 24 11:05:01 1996 - new priority = 200
Init: Fri May 24 11:05:00 1996 - new priority = 254
Init: Fri May 24 11:05:00 1996 - new priority = 252
Init: Fri May 24 11:05:00 1996 - new priority = 254
Init: Fri May 24 11:05:00 1996 - new priority = 252
Init: Fri May 24 11:05:01 1996 - new priority = 254
Init: pthread_setschedparam - SUCCESSFUL (sporadic server)
Init: Initializing mutex attributes for priority ceiling
Init: Creating a mutex
Init: Fri May 24 11:05:01 1996 - new priority = 150
Init: Fri May 24 11:05:01 1996 - new priority = 100
Init: Fri May 24 11:05:01 1996 - new priority = 254
Init: pthread_mutex_lock acquire the lock
Init: Fri May 24 11:05:01 1996 - new priority = 131
Init: Fri May 24 11:05:01 1996 - new priority = 150
Init: Fri May 24 11:05:01 1996 - new priority = 254
Init: Fri May 24 11:05:01 1996 - new priority = 254
Init: unlock mutex
Init: Fri May 24 11:05:01 1996 - new priority = 150
Init: Fri May 24 11:05:01 1996 - new priority = 100
Init: Fri May 24 11:05:01 1996 - new priority = 254
Init: Fri May 24 11:05:01 1996 - new priority = 250
*** END OF POSIX TEST 9 ***