Module extendr_api::ownership

Maintain ownership of R objects.

This provides the functions protect() and unprotect() A single preserved vector holds ownership of all protected objects.

Objects are reference counted, so multiple calls are possible, unlike R_PreserveObject.

This module exports two functions, protect(sexp) and unprotect(sexp).

Constants

• EXTRA_PRESERVATION_SIZE
• INITIAL_PRESERVATION_SIZE