I’m programming a game engine right now. The hardest part for me has been the memory management. I’ve been putting in as many optimizations as possible (because every frame counts, right?) and realized that the best way to approach this would be to do resource management using Stack and Pool allocators. The problem is, I can’t figure out how to make a singleton class that is memory managed by these allocators.
My singletons are managers, so they are actually rather big, and memory management of them is important for the start up speed of my game. I basically want to be able to call my allocators’ alloc() functions, which return type void*, and create my singleton in this allocated space.
I’ve been thinking about putting a static boolean called instantiated in each singleton class and having the constructor return NULL if instantiated is true. Would this work?
This is why everybody thinks Singletons suck. They suck horrifically. This is but one aspect of their suck, which will suck down your whole application with it.
In order to solve your problem: Do not use Suckletons.