NAME¶
Callback - Registering Caml values with the C runtime.
Module¶
Module Callback
Documentation¶
Module
Callback
:
sig end
Registering Caml values with the C runtime.
This module allows Caml values to be registered with the C runtime under a
symbolic name, so that C code can later call back registered Caml functions,
or raise registered Caml 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 passign as first argument to
raise_constant or
raise_with_arg .