diff options
author | Oz Linden <oz@lindenlab.com> | 2011-04-08 09:25:36 -0400 |
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committer | Oz Linden <oz@lindenlab.com> | 2011-04-08 09:25:36 -0400 |
commit | df329d14a9b882f1bc9c2c598043569ca2688c03 (patch) | |
tree | ceb3606910ffa32c956347f39c708b3cde15e88c /indra/llcommon/llinstancetracker.h | |
parent | 4895b24e3861021c26a9df3ba9ba04400c63f5c8 (diff) | |
parent | ed32a5e2b8e865cfad1d697fd5542b05162c40a9 (diff) |
pull tags and late fixes back from viewer-pre-beta
Diffstat (limited to 'indra/llcommon/llinstancetracker.h')
-rw-r--r-- | indra/llcommon/llinstancetracker.h | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/indra/llcommon/llinstancetracker.h b/indra/llcommon/llinstancetracker.h index 4945461d62..b971b2f914 100644 --- a/indra/llcommon/llinstancetracker.h +++ b/indra/llcommon/llinstancetracker.h @@ -37,14 +37,21 @@ #include <boost/iterator/transform_iterator.hpp> #include <boost/iterator/indirect_iterator.hpp> +class LL_COMMON_API LLInstanceTrackerBase : public boost::noncopyable +{ + protected: + static void * & getInstances(std::type_info const & info); +}; + /// This mix-in class adds support for tracking all instances of the specified class parameter T /// The (optional) key associates a value of type KEY with a given instance of T, for quick lookup /// If KEY is not provided, then instances are stored in a simple set /// @NOTE: see explicit specialization below for default KEY==T* case template<typename T, typename KEY = T*> -class LLInstanceTracker : boost::noncopyable +class LLInstanceTracker : public LLInstanceTrackerBase { typedef typename std::map<KEY, T*> InstanceMap; + typedef LLInstanceTracker<T, KEY> MyT; typedef boost::function<const KEY&(typename InstanceMap::value_type&)> KeyGetter; typedef boost::function<T*(typename InstanceMap::value_type&)> InstancePtrGetter; public: @@ -99,25 +106,26 @@ private: static InstanceMap& getMap_() { - if (! sInstances) + void * & instances = getInstances(typeid(MyT)); + if (! instances) { - sInstances = new InstanceMap; + instances = new InstanceMap; } - return *sInstances; + return * static_cast<InstanceMap*>(instances); } private: KEY mKey; - static InstanceMap* sInstances; }; /// explicit specialization for default case where KEY is T* /// use a simple std::set<T*> template<typename T> -class LLInstanceTracker<T, T*> +class LLInstanceTracker<T, T*> : public LLInstanceTrackerBase { typedef typename std::set<T*> InstanceSet; + typedef LLInstanceTracker<T, T*> MyT; public: /// Dereferencing key_iter gives you a T* (since T* is the key) typedef typename InstanceSet::iterator key_iter; @@ -172,19 +180,17 @@ protected: static InstanceSet& getSet_() { - if (! sInstances) + void * & instances = getInstances(typeid(MyT)); + if (! instances) { - sInstances = new InstanceSet; + instances = new InstanceSet; } - return *sInstances; + return * static_cast<InstanceSet *>(instances); } - static InstanceSet* sInstances; static S32 sIterationNestDepth; }; -template <typename T, typename KEY> typename LLInstanceTracker<T, KEY>::InstanceMap* LLInstanceTracker<T, KEY>::sInstances = NULL; -template <typename T> typename LLInstanceTracker<T, T*>::InstanceSet* LLInstanceTracker<T, T*>::sInstances = NULL; template <typename T> S32 LLInstanceTracker<T, T*>::sIterationNestDepth = 0; #endif |