historical/toontown-classic.git/panda/include/configFlags.I
2024-01-16 11:20:27 -06:00

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