From 98be6e141c1232bad28cc115bc7092f175b18809 Mon Sep 17 00:00:00 2001 From: Nat Goodspeed Date: Mon, 12 Aug 2019 09:44:56 -0400 Subject: DRTVWR-493: Streamline LLParamSingleton, LLLockedSingleton. Simplify LLSingleton::SingletonLifetimeManager to SingletonInitializer: that struct has not been responsible for deletion ever since LLSingletonBase acquired dependency-ordered deleteAll(). Move SingletonData::mInitState changes from SingletonLifetimeManager to constructSingleton() method. Similarly, constructSingleton() now sets SingletonData::mInstance instead of making its caller store the pointer. Add variadic arguments to LLSingleton::constructSingleton() so we can reuse it for LLParamSingleton. Add finishInitializing() method to encapsulate logic reused for getInstance()'s INITIALIZING and DELETED cases. Make LLParamSingleton a subclass of LLSingleton, just as LLLockedSingleton is a subclass of LLParamSingleton. Make LLParamSingleton a friend of LLSingleton, so it can access private members of LLSingleton without also granting access to any DERIVED_CLASS subclass. This eliminates the need for protected getInitState(). LLParamSingleton::initParamSingleton() reuses LLSingleton::constructSingleton() and finishInitializing(). Its getInstance() method completely replaces LLSingleton::getInstance(): in most EInitStates, LLParamSingleton::getInstance() is an error. Use a std::mutex to serialize calls to LLParamSingleton::initParamSingleton() and getInstance(). While LLSingleton::getInstance() relies on the "initialized exactly once" guarantee for block-scope static declarations, LLParamSingleton cannot rely on the same mechanism. LLLockedSingleton is now a very succinct subclass of LLParamSingleton -- they have very similar functionality. Giving the LLSINGLETON() macro variadic arguments eliminates the need for a separate LLPARAMSINGLETON() macro, while continuing to support existing usage. --- indra/llrender/llrender2dutils.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'indra/llrender') diff --git a/indra/llrender/llrender2dutils.h b/indra/llrender/llrender2dutils.h index f2640ff998..cf408336e6 100644 --- a/indra/llrender/llrender2dutils.h +++ b/indra/llrender/llrender2dutils.h @@ -123,7 +123,7 @@ class LLImageProviderInterface; class LLRender2D : public LLParamSingleton { - LLPARAMSINGLETON(LLRender2D, LLImageProviderInterface* image_provider); + LLSINGLETON(LLRender2D, LLImageProviderInterface* image_provider); LOG_CLASS(LLRender2D); ~LLRender2D(); public: -- cgit v1.2.3