Function nix_alloc_primop 

pub unsafe extern "C" fn nix_alloc_primop(
    context: *mut nix_c_context,
    fun: PrimOpFun,
    arity: c_int,
    name: *const c_char,
    args: *mut *const c_char,
    doc: *const c_char,
    user_data: *mut c_void,
) -> *mut PrimOp

Allocate a PrimOp @ingroup primops Call nix_gc_decref() when you’re done with the returned PrimOp.

Arguments

• context [out] - Optional, stores error information
• fun [in] - callback
• arity [in] - expected number of function arguments
• name [in] - function name
• args [in] - array of argument names, NULL-terminated
• doc [in] - optional, documentation for this primop
• user_data [in] - optional, arbitrary data, passed to the callback when it’s called

Returns

primop, or null in case of errors

See also

nix_init_primop