From 3abb513923adb1f5238a62dd7c64c433a08d9d62 Mon Sep 17 00:00:00 2001 From: Vito Caputo Date: Mon, 26 Nov 2018 23:46:55 -0800 Subject: *: initial commit This is a simple allocator derived from the chunker in the sparkler rototiller particle system module. It's useful for pooling allocations of varying size with a lot of churn. It also gives a convenient way of discarding all allocations through a reset mechanism obviating the need for granular freeing, where applicable. --- src/container.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 src/container.h (limited to 'src/container.h') diff --git a/src/container.h b/src/container.h new file mode 100644 index 0000000..c286074 --- /dev/null +++ b/src/container.h @@ -0,0 +1,27 @@ +/* + * Copyright 2018 - Vito Caputo - + * + * This program is free software: you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 3 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef _CONTAINER_H +#define _CONTAINER_H + +#include + +#ifndef container_of +#define container_of(_ptr, _type, _member) \ + (_type *)((void *)(_ptr) - offsetof(_type, _member)) +#endif + +#endif -- cgit v1.2.3