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src/hotspot/share/runtime/thread.hpp

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rev 47862 : imported patch 10.07.open.rebase_20171110.dcubed
rev 47865 : dholmes CR: Fix indents, trailing spaces and various typos. Add descriptions for the '_cnt', '_max' and '_times" fields, add impl notes to document the type choices.
rev 47866 : robinw CR: Fix some inefficient code, update some comments, fix some indents, and add some 'const' specifiers.


1159   // last_Java_pc
1160 
1161   address last_Java_pc(void)                     { return _anchor.last_Java_pc(); }
1162 
1163   // Safepoint support
1164 #if !(defined(PPC64) || defined(AARCH64))
1165   JavaThreadState thread_state() const           { return _thread_state; }
1166   void set_thread_state(JavaThreadState s)       { _thread_state = s;    }
1167 #else
1168   // Use membars when accessing volatile _thread_state. See
1169   // Threads::create_vm() for size checks.
1170   inline JavaThreadState thread_state() const;
1171   inline void set_thread_state(JavaThreadState s);
1172 #endif
1173   ThreadSafepointState *safepoint_state() const  { return _safepoint_state; }
1174   void set_safepoint_state(ThreadSafepointState *state) { _safepoint_state = state; }
1175   bool is_at_poll_safepoint()                    { return _safepoint_state->is_at_poll_safepoint(); }
1176 
1177   // JavaThread termination and lifecycle support:
1178   void smr_delete();
1179   bool on_thread_list() { return _on_thread_list; }
1180   void set_on_thread_list() { _on_thread_list = true; }
1181 
1182   // thread has called JavaThread::exit() or is terminated
1183   bool is_exiting() const;
1184   // thread is terminated (no longer on the threads list); we compare
1185   // against the two non-terminated values so that a freed JavaThread
1186   // will also be considered terminated.
1187   bool check_is_terminated(TerminatedTypes l_terminated) const {
1188     return l_terminated != _not_terminated && l_terminated != _thread_exiting;
1189   }
1190   bool is_terminated();
1191   void set_terminated(TerminatedTypes t);
1192   // special for Threads::remove() which is static:
1193   void set_terminated_value();
1194   void block_if_vm_exited();
1195 
1196   bool doing_unsafe_access()                     { return _doing_unsafe_access; }
1197   void set_doing_unsafe_access(bool val)         { _doing_unsafe_access = val; }
1198 
1199   bool do_not_unlock_if_synchronized()             { return _do_not_unlock_if_synchronized; }
1200   void set_do_not_unlock_if_synchronized(bool val) { _do_not_unlock_if_synchronized = val; }
1201 
1202   inline void set_polling_page(void* poll_value);
1203   inline volatile void* get_polling_page();
1204 
1205  private:
1206   // Support for thread handshake operations
1207   HandshakeState _handshake;
1208  public:
1209   void set_handshake_operation(HandshakeOperation* op) {
1210     _handshake.set_operation(this, op);




1159   // last_Java_pc
1160 
1161   address last_Java_pc(void)                     { return _anchor.last_Java_pc(); }
1162 
1163   // Safepoint support
1164 #if !(defined(PPC64) || defined(AARCH64))
1165   JavaThreadState thread_state() const           { return _thread_state; }
1166   void set_thread_state(JavaThreadState s)       { _thread_state = s;    }
1167 #else
1168   // Use membars when accessing volatile _thread_state. See
1169   // Threads::create_vm() for size checks.
1170   inline JavaThreadState thread_state() const;
1171   inline void set_thread_state(JavaThreadState s);
1172 #endif
1173   ThreadSafepointState *safepoint_state() const  { return _safepoint_state; }
1174   void set_safepoint_state(ThreadSafepointState *state) { _safepoint_state = state; }
1175   bool is_at_poll_safepoint()                    { return _safepoint_state->is_at_poll_safepoint(); }
1176 
1177   // JavaThread termination and lifecycle support:
1178   void smr_delete();
1179   bool on_thread_list() const { return _on_thread_list; }
1180   void set_on_thread_list() { _on_thread_list = true; }
1181 
1182   // thread has called JavaThread::exit() or is terminated
1183   bool is_exiting() const;
1184   // thread is terminated (no longer on the threads list); we compare
1185   // against the two non-terminated values so that a freed JavaThread
1186   // will also be considered terminated.
1187   bool check_is_terminated(TerminatedTypes l_terminated) const {
1188     return l_terminated != _not_terminated && l_terminated != _thread_exiting;
1189   }
1190   bool is_terminated() const;
1191   void set_terminated(TerminatedTypes t);
1192   // special for Threads::remove() which is static:
1193   void set_terminated_value();
1194   void block_if_vm_exited();
1195 
1196   bool doing_unsafe_access()                     { return _doing_unsafe_access; }
1197   void set_doing_unsafe_access(bool val)         { _doing_unsafe_access = val; }
1198 
1199   bool do_not_unlock_if_synchronized()             { return _do_not_unlock_if_synchronized; }
1200   void set_do_not_unlock_if_synchronized(bool val) { _do_not_unlock_if_synchronized = val; }
1201 
1202   inline void set_polling_page(void* poll_value);
1203   inline volatile void* get_polling_page();
1204 
1205  private:
1206   // Support for thread handshake operations
1207   HandshakeState _handshake;
1208  public:
1209   void set_handshake_operation(HandshakeOperation* op) {
1210     _handshake.set_operation(this, op);
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