src/hotspot/share/runtime/serviceThread.cpp

rev 56776 : v2.00 -> v2.07 (CR7/v2.07/10-for-jdk14) patches combined into one; merge with 8230876.patch (2019.10.17) and jdk-14+21.

*** 103,112 ****
--- 103,113 ----
      bool symboltable_work = false;
      bool resolved_method_table_work = false;
      bool thread_id_table_work = false;
      bool protection_domain_table_work = false;
      bool oopstorage_work = false;
+     bool deflate_idle_monitors = false;
      JvmtiDeferredEvent jvmti_event;
      {
        // Need state transition ThreadBlockInVM so that this thread
        // will be handled by safepoint correctly when this thread is
        // notified at a safepoint.
*** 129,142 ****
                (stringtable_work = StringTable::has_work()) |
                (symboltable_work = SymbolTable::has_work()) |
                (resolved_method_table_work = ResolvedMethodTable::has_work()) |
                (thread_id_table_work = ThreadIdTable::has_work()) |
                (protection_domain_table_work = SystemDictionary::pd_cache_table()->has_work()) |
!               (oopstorage_work = OopStorage::has_cleanup_work_and_reset())
               ) == 0) {
          // Wait until notified that there is some work to do.
!         ml.wait();
        }
  
        if (has_jvmti_events) {
          jvmti_event = JvmtiDeferredEventQueue::dequeue();
        }
--- 130,147 ----
                (stringtable_work = StringTable::has_work()) |
                (symboltable_work = SymbolTable::has_work()) |
                (resolved_method_table_work = ResolvedMethodTable::has_work()) |
                (thread_id_table_work = ThreadIdTable::has_work()) |
                (protection_domain_table_work = SystemDictionary::pd_cache_table()->has_work()) |
!               (oopstorage_work = OopStorage::has_cleanup_work_and_reset()) |
!               (deflate_idle_monitors = ObjectSynchronizer::is_async_deflation_needed())
               ) == 0) {
          // Wait until notified that there is some work to do.
!         // If AsyncDeflateIdleMonitors, then we wait for
!         // GuaranteedSafepointInterval so that is_async_deflation_needed()
!         // is checked at the same interval.
!         ml.wait(AsyncDeflateIdleMonitors ? GuaranteedSafepointInterval : 0);
        }
  
        if (has_jvmti_events) {
          jvmti_event = JvmtiDeferredEventQueue::dequeue();
        }
*** 181,190 ****
--- 186,199 ----
      }
  
      if (oopstorage_work) {
        cleanup_oopstorages();
      }
+ 
+     if (deflate_idle_monitors) {
+       ObjectSynchronizer::deflate_idle_monitors_using_JT();
+     }
    }
  }
  
  bool ServiceThread::is_service_thread(Thread* thread) {
    return thread == _instance;