72 jint l_ref_count = ref_count();
73 #endif
74 assert(l_ref_count == 0, "must be 0: l_ref_count=%d, ref_count=%d", l_ref_count, ref_count());
75
76 Atomic::store(&_header, markWord::zero());
77
78 clear_using_JT();
79 }
80
81 inline void ObjectMonitor::clear_using_JT() {
82 // Unlike other *_using_JT() functions, we cannot assert
83 // AsyncDeflateIdleMonitors or Thread::current()->is_Java_thread()
84 // because clear() calls this function for the rest of its checks.
85
86 if (AsyncDeflateIdleMonitors) {
87 // Async deflation protocol uses the header, owner and ref_count
88 // fields. While the ObjectMonitor being deflated is on the global free
89 // list, we leave those three fields alone; owner == DEFLATER_MARKER
90 // and ref_count < 0 will force any racing threads to retry. The
91 // header field is used by install_displaced_markword_in_object()
92 // in the last part of the deflation protocol so we cannot check
93 // its value here.
94 guarantee(_owner == NULL || _owner == DEFLATER_MARKER,
95 "must be NULL or DEFLATER_MARKER: owner=" INTPTR_FORMAT,
96 p2i(_owner));
97 jint l_ref_count = ref_count();
98 guarantee(l_ref_count <= 0, "must be <= 0: l_ref_count=%d, ref_count=%d", l_ref_count, ref_count());
99 }
100 assert(_contentions == 0, "must be 0: contentions=%d", _contentions);
101 assert(_waiters == 0, "must be 0: waiters=%d", _waiters);
102 assert(_recursions == 0, "must be 0: recursions=" INTX_FORMAT, _recursions);
103 assert(_object != NULL, "must be non-NULL");
104
105 set_allocation_state(Free);
106 _object = NULL;
107 }
108
109 inline void* ObjectMonitor::object() const {
110 return _object;
111 }
112
113 inline void* ObjectMonitor::object_addr() {
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72 jint l_ref_count = ref_count();
73 #endif
74 assert(l_ref_count == 0, "must be 0: l_ref_count=%d, ref_count=%d", l_ref_count, ref_count());
75
76 Atomic::store(&_header, markWord::zero());
77
78 clear_using_JT();
79 }
80
81 inline void ObjectMonitor::clear_using_JT() {
82 // Unlike other *_using_JT() functions, we cannot assert
83 // AsyncDeflateIdleMonitors or Thread::current()->is_Java_thread()
84 // because clear() calls this function for the rest of its checks.
85
86 if (AsyncDeflateIdleMonitors) {
87 // Async deflation protocol uses the header, owner and ref_count
88 // fields. While the ObjectMonitor being deflated is on the global free
89 // list, we leave those three fields alone; owner == DEFLATER_MARKER
90 // and ref_count < 0 will force any racing threads to retry. The
91 // header field is used by install_displaced_markword_in_object()
92 // to restore the object's header so we cannot check its value here.
93 guarantee(_owner == NULL || _owner == DEFLATER_MARKER,
94 "must be NULL or DEFLATER_MARKER: owner=" INTPTR_FORMAT,
95 p2i(_owner));
96 jint l_ref_count = ref_count();
97 guarantee(l_ref_count <= 0, "must be <= 0: l_ref_count=%d, ref_count=%d", l_ref_count, ref_count());
98 }
99 assert(_contentions == 0, "must be 0: contentions=%d", _contentions);
100 assert(_waiters == 0, "must be 0: waiters=%d", _waiters);
101 assert(_recursions == 0, "must be 0: recursions=" INTX_FORMAT, _recursions);
102 assert(_object != NULL, "must be non-NULL");
103
104 set_allocation_state(Free);
105 _object = NULL;
106 }
107
108 inline void* ObjectMonitor::object() const {
109 return _object;
110 }
111
112 inline void* ObjectMonitor::object_addr() {
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