39 template <> 40 inline void ThreadsList::threads_do_dispatch<ThreadClosure>(ThreadClosure *cl, JavaThread *const thread) const { 41 cl->do_thread(thread); 42 } 43 44 template <class T> 45 inline void ThreadsList::threads_do(T *cl) const { 46 const intx scan_interval = PrefetchScanIntervalInBytes; 47 JavaThread *const *const end = _threads + _length; 48 for (JavaThread *const *current_p = _threads; current_p != end; current_p++) { 49 Prefetch::read((void*)current_p, scan_interval); 50 JavaThread *const current = *current_p; 51 threads_do_dispatch(cl, current); 52 } 53 } 54 55 // These three inlines are private to ThreadsSMRSupport, but 56 // they are called by public inline update_tlh_stats() below: 57 58 inline void ThreadsSMRSupport::add_tlh_times(uint add_value) { 59 Atomic::add(add_value, &_tlh_times); 60 } 61 62 inline void ThreadsSMRSupport::inc_tlh_cnt() { 63 Atomic::inc(&_tlh_cnt); 64 } 65 66 inline void ThreadsSMRSupport::update_tlh_time_max(uint new_value) { 67 while (true) { 68 uint cur_value = _tlh_time_max; 69 if (new_value <= cur_value) { 70 // No need to update max value so we're done. 71 break; 72 } 73 if (Atomic::cmpxchg(new_value, &_tlh_time_max, cur_value) == cur_value) { 74 // Updated max value so we're done. Otherwise try it all again. 75 break; 76 } 77 } 78 } 79 80 inline ThreadsList* ThreadsSMRSupport::get_java_thread_list() { 81 return (ThreadsList*)Atomic::load_acquire(&_java_thread_list); 82 } 83 84 inline bool ThreadsSMRSupport::is_a_protected_JavaThread_with_lock(JavaThread *thread) { 85 MutexLocker ml(Threads_lock->owned_by_self() ? NULL : Threads_lock); 86 return is_a_protected_JavaThread(thread); 87 } 88 89 inline void ThreadsSMRSupport::update_tlh_stats(uint millis) { 90 ThreadsSMRSupport::inc_tlh_cnt(); 91 ThreadsSMRSupport::add_tlh_times(millis); 92 ThreadsSMRSupport::update_tlh_time_max(millis); 93 } | 39 template <> 40 inline void ThreadsList::threads_do_dispatch<ThreadClosure>(ThreadClosure *cl, JavaThread *const thread) const { 41 cl->do_thread(thread); 42 } 43 44 template <class T> 45 inline void ThreadsList::threads_do(T *cl) const { 46 const intx scan_interval = PrefetchScanIntervalInBytes; 47 JavaThread *const *const end = _threads + _length; 48 for (JavaThread *const *current_p = _threads; current_p != end; current_p++) { 49 Prefetch::read((void*)current_p, scan_interval); 50 JavaThread *const current = *current_p; 51 threads_do_dispatch(cl, current); 52 } 53 } 54 55 // These three inlines are private to ThreadsSMRSupport, but 56 // they are called by public inline update_tlh_stats() below: 57 58 inline void ThreadsSMRSupport::add_tlh_times(uint add_value) { 59 Atomic::add(&_tlh_times, add_value); 60 } 61 62 inline void ThreadsSMRSupport::inc_tlh_cnt() { 63 Atomic::inc(&_tlh_cnt); 64 } 65 66 inline void ThreadsSMRSupport::update_tlh_time_max(uint new_value) { 67 while (true) { 68 uint cur_value = _tlh_time_max; 69 if (new_value <= cur_value) { 70 // No need to update max value so we're done. 71 break; 72 } 73 if (Atomic::cmpxchg(&_tlh_time_max, cur_value, new_value) == cur_value) { 74 // Updated max value so we're done. Otherwise try it all again. 75 break; 76 } 77 } 78 } 79 80 inline ThreadsList* ThreadsSMRSupport::get_java_thread_list() { 81 return (ThreadsList*)Atomic::load_acquire(&_java_thread_list); 82 } 83 84 inline bool ThreadsSMRSupport::is_a_protected_JavaThread_with_lock(JavaThread *thread) { 85 MutexLocker ml(Threads_lock->owned_by_self() ? NULL : Threads_lock); 86 return is_a_protected_JavaThread(thread); 87 } 88 89 inline void ThreadsSMRSupport::update_tlh_stats(uint millis) { 90 ThreadsSMRSupport::inc_tlh_cnt(); 91 ThreadsSMRSupport::add_tlh_times(millis); 92 ThreadsSMRSupport::update_tlh_time_max(millis); 93 } |