centos man page for callback

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							    2014-06-09							       Callback(3)