Function AtomicRefCountIsOne

src/include/base/cef_atomic_ref_count.h:72–74

Return whether the reference count is one. If the reference count is used in the conventional way, a refrerence count of 1 implies that the current thread owns the reference and no other thread shares it. This call performs the test for a reference count of one, and performs the memory barrier needed for the owning thread to act on the object, knowing that it has exclusive access to the object.

// needed for the owning thread to act on the object, knowing that it has
// exclusive access to the object.
inline bool AtomicRefCountIsOne(volatile AtomicRefCount* ptr) {
  return const_cast<AtomicRefCount*>(ptr)->IsOne();
}

// Return whether the reference count is zero.  With conventional object
// referencing counting, the object will be destroyed, so the reference count