39 

    39 

    40 public:

    40 public:

    41   ShenandoahLock() : _state(unlocked), _owner(NULL) {};

    41   ShenandoahLock() : _state(unlocked), _owner(NULL) {};

    42 

    42 

    43   void lock() {

    43   void lock() {

    44     Thread::SpinAcquire(&_state, "Shenandoah Heap Lock");

    47     Thread::SpinAcquire(&_state, "Shenandoah Heap Lock");

    45 #ifdef ASSERT

    48 #ifdef ASSERT

    46     assert(_state == locked, "must be locked");

    49     assert(_state == locked, "must be locked");

    47     assert(_owner == NULL, "must not be owned");

    50     assert(_owner == NULL, "must not be owned");

    48     _owner = Thread::current();

    51     _owner = Thread::current();