From Apache OpenOffice Wiki
Type: Specification State: draft Claim: optional
The Runtime provides dedicated support for implementing and handling
objects. The threading type of any code can be specified appropriately.
The analysis of multi-threading shows OOo deficiencies wrt to multi-threading and thread-safeness. The goals for the OOo Threading-Model & -Architecture identify three thread related types of code, which (thread-unsafe, thread-safe and thread-affine).
Two thread related purposes:
":unsafe"- for thread-unsafe code.
":affine"- for thread-affine code.