Callback(3) OCaml library Callback(3)
NAME
Callback - Registering OCaml values with the C runtime.
Module
Module Callback
Documentation
Module Callback
: sig end
Registering OCaml values with the C runtime.
This module allows OCaml values to be registered with the C runtime
under a symbolic name, so that C code can later call back registered
OCaml functions, or raise registered OCaml exceptions.
val register : string -> 'a -> unit
Callback.register n v registers the value v under the name n . C code
can later retrieve a handle to v by calling caml_named_value(n) .
val register_exception : string -> exn -> unit
Callback.register_exception n exn registers the exception contained in
the exception value exn under the name n . C code can later retrieve a
handle to the exception by calling caml_named_value(n) . The exception
value thus obtained is suitable for passing as first argument to
raise_constant or raise_with_arg .
OCamldoc 2014-10-18 Callback(3)
ocaml 4.02.1 - Generated Sun Oct 19 07:00:01 CDT 2014