posix: Avoid Giant lock for mutexes

Delete _POSIX_Mutex_Get().  Use _POSIX_Mutex_Get_interrupt_disable()
instead.

Update #2555.

3 files changed, 48 insertions, 1 deletions

diff --git a/testsuites/psxtests/psx09/init.c b/testsuites/psxtests/psx09/init.c
index 15c1e4841b..64bb4af252 100644
--- a/testsuites/psxtests/psx09/init.c
+++ b/testsuites/psxtests/psx09/init.c
@@ -49,6 +49,50 @@ void print_schedparam(
 #endif
 }
 
+static void *mutex_lock_task(void *arg)
+{
+  pthread_mutex_t *mtx;
+  int              eno;
+
+  mtx = arg;
+
+  eno = pthread_mutex_lock( mtx );
+  rtems_test_assert( eno == 0 );
+
+  sched_yield();
+
+  eno = pthread_mutex_unlock( mtx );
+  rtems_test_assert( eno == 0 );
+
+  return NULL;
+}
+
+static void test_destroy_locked_mutex(void)
+{
+  pthread_mutex_t mtx;
+  pthread_t       th;
+  int             eno;
+
+  eno = pthread_mutex_init( &mtx, NULL );
+  rtems_test_assert( eno == 0 );
+
+  eno = pthread_create( &th, NULL, mutex_lock_task, &mtx );
+  rtems_test_assert( eno == 0 );
+
+  sched_yield();
+
+  eno = pthread_mutex_destroy( &mtx );
+  rtems_test_assert( eno == EBUSY );
+
+  sched_yield();
+
+  eno = pthread_mutex_destroy( &mtx );
+  rtems_test_assert( eno == 0 );
+
+  eno = pthread_join( th, NULL );
+  rtems_test_assert( eno == 0 );
+}
+
 void *POSIX_Init(
   void *argument
 )
@@ -65,6 +109,8 @@ void *POSIX_Init(
 
   TEST_BEGIN();
 
+  test_destroy_locked_mutex();
+
   /* set the time of day, and print our buffer in multiple ways */
 
   set_time( TM_FRIDAY, TM_MAY, 24, 96, 11, 5, 0 );
diff --git a/testsuites/psxtests/psx09/psx09.doc b/testsuites/psxtests/psx09/psx09.doc
index ed5f83bc9b..b90367b669 100644
--- a/testsuites/psxtests/psx09/psx09.doc
+++ b/testsuites/psxtests/psx09/psx09.doc
@@ -23,3 +23,4 @@ concepts:
 + thread priority no longer gets adjusted after obtaining mutex

 + thread priority gets locked at the ceiling level

 + unlocks mutex and thread priority is set to low priority successfully

++ lock returns proper status if deleted during lock operation

diff --git a/testsuites/psxtests/psx09/system.h b/testsuites/psxtests/psx09/system.h
index 1c71e7fd3a..a5aabeb82d 100644
--- a/testsuites/psxtests/psx09/system.h
+++ b/testsuites/psxtests/psx09/system.h
@@ -34,7 +34,7 @@ void *Task_2(
 
 #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
 
-#define CONFIGURE_MAXIMUM_POSIX_THREADS   1
+#define CONFIGURE_MAXIMUM_POSIX_THREADS   2
 #define CONFIGURE_MAXIMUM_POSIX_KEYS     10
 #define CONFIGURE_MAXIMUM_POSIX_MUTEXES  10