Sane cleanup. Close any open resources, especially interprocess visible resources. Resources entirely in your process, such as memory, will just get freed by th

Sane cleanup. Close any open resources, especially interprocess visible resources. Resources entirely in your process, such as memory, will just get freed by the OS; a file might want to be flushed, a database properly closed. Likely, in the frame where you're out of memory, you won't have the context to know what should be done: that is most likely a decision of your caller, or their caller…