124 // NOTE: It may cause monitor inflation
125 static intptr_t identity_hash_value_for(Handle obj);
126 static intptr_t FastHashCode(Thread * Self, oop obj);
127
128 // java.lang.Thread support
129 static bool current_thread_holds_lock(JavaThread* thread, Handle h_obj);
130 static LockOwnership query_lock_ownership(JavaThread * self, Handle h_obj);
131
132 static JavaThread* get_lock_owner(ThreadsList * t_list, Handle h_obj);
133
134 // JNI detach support
135 static void release_monitors_owned_by_thread(TRAPS);
136 static void monitors_iterate(MonitorClosure* m);
137
138 // GC: we current use aggressive monitor deflation policy
139 // Basically we deflate all monitors that are not busy.
140 // An adaptive profile-based deflation policy could be used if needed
141 static void deflate_idle_monitors(DeflateMonitorCounters* counters);
142 static void deflate_global_idle_monitors_using_JT();
143 static void deflate_per_thread_idle_monitors_using_JT();
144 static void deflate_thread_local_monitors(Thread* thread, DeflateMonitorCounters* counters);
145 static void prepare_deflate_idle_monitors(DeflateMonitorCounters* counters);
146 static void finish_deflate_idle_monitors(DeflateMonitorCounters* counters);
147
148 // For a given monitor list: global or per-thread, deflate idle monitors
149 static int deflate_monitor_list(ObjectMonitor** listheadp,
150 ObjectMonitor** freeHeadp,
151 ObjectMonitor** freeTailp);
152 // For a given in-use monitor list: global or per-thread, deflate idle
153 // monitors using a JavaThread.
154 static int deflate_monitor_list_using_JT(ObjectMonitor** listHeadp,
155 ObjectMonitor** freeHeadp,
156 ObjectMonitor** freeTailp,
157 ObjectMonitor** savedMidInUsep);
158 static bool deflate_monitor(ObjectMonitor* mid, oop obj,
159 ObjectMonitor** freeHeadp,
160 ObjectMonitor** freeTailp);
161 static bool deflate_monitor_using_JT(ObjectMonitor* mid,
162 ObjectMonitor** freeHeadp,
163 ObjectMonitor** freeTailp);
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124 // NOTE: It may cause monitor inflation
125 static intptr_t identity_hash_value_for(Handle obj);
126 static intptr_t FastHashCode(Thread * Self, oop obj);
127
128 // java.lang.Thread support
129 static bool current_thread_holds_lock(JavaThread* thread, Handle h_obj);
130 static LockOwnership query_lock_ownership(JavaThread * self, Handle h_obj);
131
132 static JavaThread* get_lock_owner(ThreadsList * t_list, Handle h_obj);
133
134 // JNI detach support
135 static void release_monitors_owned_by_thread(TRAPS);
136 static void monitors_iterate(MonitorClosure* m);
137
138 // GC: we current use aggressive monitor deflation policy
139 // Basically we deflate all monitors that are not busy.
140 // An adaptive profile-based deflation policy could be used if needed
141 static void deflate_idle_monitors(DeflateMonitorCounters* counters);
142 static void deflate_global_idle_monitors_using_JT();
143 static void deflate_per_thread_idle_monitors_using_JT();
144 static void deflate_common_idle_monitors_using_JT(bool is_global, JavaThread * self);
145 static void deflate_thread_local_monitors(Thread* thread, DeflateMonitorCounters* counters);
146 static void prepare_deflate_idle_monitors(DeflateMonitorCounters* counters);
147 static void finish_deflate_idle_monitors(DeflateMonitorCounters* counters);
148
149 // For a given monitor list: global or per-thread, deflate idle monitors
150 static int deflate_monitor_list(ObjectMonitor** listheadp,
151 ObjectMonitor** freeHeadp,
152 ObjectMonitor** freeTailp);
153 // For a given in-use monitor list: global or per-thread, deflate idle
154 // monitors using a JavaThread.
155 static int deflate_monitor_list_using_JT(ObjectMonitor** listHeadp,
156 ObjectMonitor** freeHeadp,
157 ObjectMonitor** freeTailp,
158 ObjectMonitor** savedMidInUsep);
159 static bool deflate_monitor(ObjectMonitor* mid, oop obj,
160 ObjectMonitor** freeHeadp,
161 ObjectMonitor** freeTailp);
162 static bool deflate_monitor_using_JT(ObjectMonitor* mid,
163 ObjectMonitor** freeHeadp,
164 ObjectMonitor** freeTailp);
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