diff options
Diffstat (limited to 'indra/llcommon/llinstancetracker.h')
-rwxr-xr-x | indra/llcommon/llinstancetracker.h | 67 |
1 files changed, 30 insertions, 37 deletions
diff --git a/indra/llcommon/llinstancetracker.h b/indra/llcommon/llinstancetracker.h index 1eab270e3c..c8e1d9cd84 100755 --- a/indra/llcommon/llinstancetracker.h +++ b/indra/llcommon/llinstancetracker.h @@ -46,22 +46,6 @@ class LL_COMMON_API LLInstanceTrackerBase { protected: - /// Get a process-unique void* pointer slot for the specified type_info - static void * & getInstances(std::type_info const & info); - - /// Find or create a STATICDATA instance for the specified TRACKED class. - /// STATICDATA must be default-constructible. - template<typename STATICDATA, class TRACKED> - static STATICDATA& getStatic() - { - void *& instances = getInstances(typeid(TRACKED)); - if (! instances) - { - instances = new STATICDATA; - } - return *static_cast<STATICDATA*>(instances); - } - /// It's not essential to derive your STATICDATA (for use with /// getStatic()) from StaticBase; it's just that both known /// implementations do. @@ -70,15 +54,21 @@ protected: StaticBase(): sIterationNestDepth(0) {} - S32 sIterationNestDepth; + + void incrementDepth(); + void decrementDepth(); + U32 getDepth(); + private: + U32 sIterationNestDepth; }; }; /// 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*> +/// @NOTE: see explicit specialization below for default KEY==void case +/// @NOTE: this class is not thread-safe unless used as read-only +template<typename T, typename KEY = void> class LLInstanceTracker : public LLInstanceTrackerBase { typedef LLInstanceTracker<T, KEY> MyT; @@ -87,7 +77,7 @@ class LLInstanceTracker : public LLInstanceTrackerBase { InstanceMap sMap; }; - static StaticData& getStatic() { return LLInstanceTrackerBase::getStatic<StaticData, MyT>(); } + static StaticData& getStatic() { static StaticData sData; return sData;} static InstanceMap& getMap_() { return getStatic().sMap; } public: @@ -99,12 +89,12 @@ public: instance_iter(const typename InstanceMap::iterator& it) : mIterator(it) { - ++getStatic().sIterationNestDepth; + getStatic().incrementDepth(); } ~instance_iter() { - --getStatic().sIterationNestDepth; + getStatic().decrementDepth(); } @@ -131,20 +121,20 @@ public: typedef boost::iterator_facade<key_iter, KEY, boost::forward_traversal_tag> super_t; key_iter(typename InstanceMap::iterator it) - : mIterator(it) + : mIterator(it) { - ++getStatic().sIterationNestDepth; + getStatic().incrementDepth(); } key_iter(const key_iter& other) - : mIterator(other.mIterator) + : mIterator(other.mIterator) { - ++getStatic().sIterationNestDepth; + getStatic().incrementDepth(); } ~key_iter() { - --getStatic().sIterationNestDepth; + getStatic().decrementDepth(); } @@ -182,7 +172,10 @@ public: return instance_iter(getMap_().end()); } - static S32 instanceCount() { return getMap_().size(); } + static S32 instanceCount() + { + return getMap_().size(); + } static key_iter beginKeys() { @@ -203,7 +196,7 @@ protected: virtual ~LLInstanceTracker() { // it's unsafe to delete instances of this type while all instances are being iterated over. - llassert_always(getStatic().sIterationNestDepth == 0); + llassert_always(getStatic().getDepth() == 0); remove_(); } virtual void setKey(KEY key) { remove_(); add_(key); } @@ -227,18 +220,18 @@ private: KEY mInstanceKey; }; -/// explicit specialization for default case where KEY is T* +/// explicit specialization for default case where KEY is void /// use a simple std::set<T*> template<typename T> -class LLInstanceTracker<T, T*> : public LLInstanceTrackerBase +class LLInstanceTracker<T, void> : public LLInstanceTrackerBase { - typedef LLInstanceTracker<T, T*> MyT; + typedef LLInstanceTracker<T, void> MyT; typedef typename std::set<T*> InstanceSet; struct StaticData: public StaticBase { InstanceSet sSet; }; - static StaticData& getStatic() { return LLInstanceTrackerBase::getStatic<StaticData, MyT>(); } + static StaticData& getStatic() { static StaticData sData; return sData; } static InstanceSet& getSet_() { return getStatic().sSet; } public: @@ -265,18 +258,18 @@ public: instance_iter(const typename InstanceSet::iterator& it) : mIterator(it) { - ++getStatic().sIterationNestDepth; + getStatic().incrementDepth(); } instance_iter(const instance_iter& other) : mIterator(other.mIterator) { - ++getStatic().sIterationNestDepth; + getStatic().incrementDepth(); } ~instance_iter() { - --getStatic().sIterationNestDepth; + getStatic().decrementDepth(); } private: @@ -309,7 +302,7 @@ protected: virtual ~LLInstanceTracker() { // it's unsafe to delete instances of this type while all instances are being iterated over. - llassert_always(getStatic().sIterationNestDepth == 0); + llassert_always(getStatic().getDepth() == 0); getSet_().erase(static_cast<T*>(this)); } |