pub unsafe fn mx_abi_register(pkg_name: &CStr)Expand description
Register the mx_* C-callables with R.
Called during package init (R_init_*) to make mx_wrap, mx_get,
and mx_query available to consumer packages via R_GetCCallable.
§Safety
Must be called from R’s main thread during package initialization.
pkg_name must be a valid null-terminated C string.