mulle-aba

🚮 A lock-free, cross-platform solution to the ABA problem

mulle_aba is a (pretty much) lock-free, cross-platform solution to the ABA problem written in C.

The ABA problem appears, when you are freeing memory, that is shared by multiple threads and is not protected by a lock. As the subject matter is fairly complicated, please read the Wikipedia article and maybe Preshing: An Introduction to Lock-Free Programming first and then checkout the following items:

• mulle-aba: How it works 1
• mulle-aba: How it works 2
• mulle-aba: How it works 3
• Example

Release Version	Release Notes	AI Documentation
	RELEASENOTES	DeepWiki for mulle-aba

API

• Aba

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Add

This project is a component of the mulle-core library. As such you usually will not add or install it individually, unless you specifically do not want to link against mulle-core.

Add as an individual component

Use mulle-sde to add mulle-aba to your project:

mulle-sde add github:mulle-concurrent/mulle-aba

To only add the sources of mulle-aba with dependency sources use clib:

clib install --out src/mulle-concurrent mulle-concurrent/mulle-aba

Add -isystem src/mulle-concurrent to your CFLAGS and compile all the sources that were downloaded with your project.

Install

Use mulle-sde to build and install mulle-aba and all dependencies:

mulle-sde install --prefix /usr/local \
   https://github.com/mulle-concurrent/mulle-aba/archive/latest.tar.gz

Legacy Installation

Install the requirements:

Requirements	Description
mulle-allocator	🔄 Flexible C memory allocation scheme
mulle-thread	🔠 Cross-platform thread/mutex/tss/atomic operations in C
mulle-linkedlist	🔂 mulle-linkedlist a wait and lock-free linked list

Download the latest tar or zip archive and unpack it.

Install mulle-aba into /usr/local with cmake:

PREFIX_DIR="/usr/local"
cmake -B build                               \
      -DMULLE_SDK_PATH="${PREFIX_DIR}"       \
      -DCMAKE_INSTALL_PREFIX="${PREFIX_DIR}" \
      -DCMAKE_PREFIX_PATH="${PREFIX_DIR}"    \
      -DCMAKE_BUILD_TYPE=Release &&
cmake --build build --config Release &&
cmake --install build --config Release

Author

Nat! for Mulle kybernetiK