51 lines
1.4 KiB
Text
51 lines
1.4 KiB
Text
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file configFlags.I
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* @author drose
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* @date 2004-10-21
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*/
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/**
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* Returns true if the local object's cache is still valid (based on a
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* comparison of the supplied local_modified value with the global_modified
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* value).
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*/
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ALWAYS_INLINE bool ConfigFlags::
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is_cache_valid(AtomicAdjust::Integer local_modified) {
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return local_modified == _global_modified;
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}
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/**
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* Updates the indicated local_modified value so that the cache will appear to
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* be valid, until someone next calls invalidate_cache().
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*/
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ALWAYS_INLINE void ConfigFlags::
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mark_cache_valid(AtomicAdjust::Integer &local_modified) {
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local_modified = _global_modified;
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}
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/**
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* Returns a value that will be appropriate for initializing a local_modified
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* value. This value will indicate an invalid cache in the next call to
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* is_cache_valid().
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*/
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INLINE AtomicAdjust::Integer ConfigFlags::
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initial_invalid_cache() {
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return _global_modified - 1;
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}
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/**
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* Invalidates all of the global ConfigVariable caches in the world at once,
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* by incrementing the global_modified counter.
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*/
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INLINE void ConfigFlags::
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invalidate_cache() {
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AtomicAdjust::inc(_global_modified);
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}
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