Module ccall 

Direct FFI to mx_abi Functions

This module provides Rust wrappers around the #[no_mangle] functions defined in mx_abi.rs, which is compiled into each package’s static library.

Functions

Function	Purpose
mx_wrap	Wrap *mut mx_erased in R’s EXTPTRSXP
mx_get	Extract *mut mx_erased from EXTPTRSXP
mx_query	Query for interface vtable by tag

Linkage

Each package includes mx_abi.rs in its staticlib, so these symbols are resolved at link time — no R_GetCCallable indirection needed.

Thread Safety

All wrapper functions must be called from R’s main thread.

Modules

ffi 🔒

Functions

mx_get^⚠

Extract an erased object pointer from an R external pointer.

mx_query^⚠

Query an object for an interface vtable by tag.

mx_query_as^⚠

Query an object for an interface and return a typed view.

mx_wrap^⚠

Wrap an erased object pointer in an R external pointer.