*** POSIX SPINLOCK TEST 01 ***
pthread_spin_init( NULL, PTHREAD_PROCESS_PRIVATE ) -- EINVAL
pthread_spin_init( NULL, PTHREAD_PROCESS_SHARED ) -- EINVAL
pthread_spin_init( &spinlock, 0x1234 ) -- EINVAL
pthread_spin_init( &spinlock, PTHREAD_PROCESS_SHARED ) -- EINVAL
pthread_spin_init( &Spinlock, PTHREAD_PROCESS_PRIVATE ) -- OK
pthread_spin_init( &spinlock, PTHREAD_PROCESS_PRIVATE ) -- EAGAIN
pthread_spin_init( &spinlock, PTHREAD_PROCESS_PRIVATE ) -- EAGAIN
pthread_spin_lock( NULL ) -- EINVAL
pthread_spin_trylock( NULL ) -- EINVAL
pthread_spin_unlock( NULL ) -- EINVAL
pthread_spin_destroy( NULL ) -- EINVAL
pthread_spin_lock( &spinlock ) -- EINVAL
pthread_spin_trylock( &spinlock ) -- EINVAL
pthread_spin_unlock( &spinlock ) -- EINVAL
pthread_spin_destroy( &spinlock ) -- EINVAL
pthread_spin_unlock( &Spinlock ) -- already unlocked OK
pthread_spin_lock( &Spinlock ) -- OK
pthread_spin_lock( &Spinlock ) -- EDEADLK
pthread_spin_trylock( &Spinlock ) -- EDEADLK
pthread_spin_unlock( &Spinlock ) -- OK
pthread_spin_trylock( &Spinlock ) -- OK
pthread_spin_unlock( &Spinlock ) -- OK
pthread_spin_lock( &Spinlock ) from Thread -- OK
sleep to allow main thread to run
pthread_spin_lock( &Spinlock ) -- OK
pthread_spin_unlock( &Spinlock ) from Thread -- OK
pthread_spin_destroy( &Spinlock ) -- EBUSY
pthread_spin_unlock( &Spinlock ) -- OK
pthread_spin_destroy( &Spinlock ) -- OK
*** END OF POSIX SPINLOCK TEST 01 ***