From 8d20480c5f77fe1fab8149d3cda79bdd61e77656 Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Thu, 28 Oct 2021 18:06:21 +0000 Subject: SL-16148 SL-16244 SL-16270 SL-16253 Remove most BlockTimers, remove LLMemTracked, introduce alignas, hook most/all reamining allocs, disable synchronous occlusion, and convert frequently accessed LLSingletons to LLSimpleton --- indra/llcommon/llsingleton.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'indra/llcommon/llsingleton.h') diff --git a/indra/llcommon/llsingleton.h b/indra/llcommon/llsingleton.h index 2e43a3cbed..10a8ecfedb 100644 --- a/indra/llcommon/llsingleton.h +++ b/indra/llcommon/llsingleton.h @@ -839,4 +839,30 @@ private: \ /* LLSINGLETON() is carefully implemented to permit exactly this */ \ LLSINGLETON_C11(DERIVED_CLASS) {} +// Relatively unsafe singleton implementation that is much faster +// and simpler than LLSingleton, but has no dependency tracking +// or inherent thread safety and requires manual invocation of +// createInstance before first use. +template +class LLSimpleton +{ +public: + static T* sInstance; + + static void createInstance() + { + llassert(sInstance == nullptr); + sInstance = new T(); + } + + static inline T* getInstance() { return sInstance; } + static inline T& instance() { return *getInstance(); } + static inline bool instanceExists() { return sInstance != nullptr; } + + static void deleteSingleton() { + delete sInstance; + sInstance = nullptr; + } +}; + #endif -- cgit v1.2.3