src/hotspot/share/runtime/synchronizer.inline.hpp

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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#ifndef SHARE_RUNTIME_SYNCHRONIZER_INLINE_HPP
#define SHARE_RUNTIME_SYNCHRONIZER_INLINE_HPP

#include "runtime/synchronizer.hpp"

#include "runtime/lightweightSynchronizer.hpp"
#include "runtime/safepointVerifiers.hpp"

inline ObjectMonitor* ObjectSynchronizer::read_monitor(markWord mark) {
  return mark.monitor();
}

inline ObjectMonitor* ObjectSynchronizer::read_monitor(Thread* current, oop obj, markWord mark) {
  if (!UseObjectMonitorTable) {
    return read_monitor(mark);
  } else {
    return LightweightSynchronizer::get_monitor_from_table(current, obj);
  }
}

inline void ObjectSynchronizer::enter(Handle obj, BasicLock* lock, JavaThread* current) {
  assert(current == Thread::current(), "must be");

  if (LockingMode == LM_LIGHTWEIGHT) {
    LightweightSynchronizer::enter(obj, lock, current);
  } else {
    enter_legacy(obj, lock, current);
  }
}

inline bool ObjectSynchronizer::quick_enter(oop obj, BasicLock* lock, JavaThread* current) {
  assert(current->thread_state() == _thread_in_Java, "invariant");
  NoSafepointVerifier nsv;
  if (obj == nullptr) return false;       // Need to throw NPE

  if (obj->klass()->is_value_based()) {
    return false;
  }

  if (LockingMode == LM_LIGHTWEIGHT) {
    return LightweightSynchronizer::quick_enter(obj, lock, current);
  } else {
    return quick_enter_legacy(obj, lock, current);
  }
}

inline void ObjectSynchronizer::exit(oop object, BasicLock* lock, JavaThread* current) {
  current->dec_held_monitor_count();

  if (LockingMode == LM_LIGHTWEIGHT) {
    LightweightSynchronizer::exit(object, lock, current);
  } else {
    exit_legacy(object, lock, current);
  }
}

#endif // SHARE_RUNTIME_SYNCHRONIZER_INLINE_HPP