Thread local storage

Qt offers TLS through its QThreadStorage class. Memory management of pointer type values is handled by it. Generally, one would set some kind of data structure as a TLS value to store more than one value per thread, as described, for example, in the QThreadStorage class documentation:

QThreadStorage<QCache<QString, SomeClass> > caches; 
 
void cacheObject(const QString &key, SomeClass* object) { 
    caches.localData().insert(key, object); 
} 
 
void removeFromCache(const QString &key) { 
    if (!caches.hasLocalData()) { return; } 
 
    caches.localData().remove(key); 
}