guile/libguile/hooks.h

#ifndef SCM_HOOKS_H
#define SCM_HOOKS_H

/* Copyright (C) 1995-1996,1999,2000-2001,2006,2008-2009,2018
 *   Free Software Foundation, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */



#include "libguile/__scm.h"
#include <libguile/error.h>
#include <libguile/smob.h>

/*
 * Scheme level hooks
 */

SCM_API scm_t_bits scm_tc16_hook;

#define SCM_HOOKP(x)			SCM_SMOB_PREDICATE (scm_tc16_hook, x)
#define SCM_HOOK_ARITY(hook)		SCM_SMOB_FLAGS (hook)
#define SCM_HOOK_PROCEDURES(hook)	SCM_SMOB_OBJECT (hook)
#define SCM_SET_HOOK_PROCEDURES(hook, procs) SCM_SET_SMOB_OBJECT ((hook), (procs))

#define SCM_VALIDATE_HOOK(pos, a) SCM_MAKE_VALIDATE_MSG (pos, a, HOOKP, "hook")

SCM_API SCM scm_make_hook (SCM n_args);
SCM_API SCM scm_hook_p (SCM x);
SCM_API SCM scm_hook_empty_p (SCM hook);
SCM_API SCM scm_add_hook_x (SCM hook, SCM thunk, SCM appendp);
SCM_API SCM scm_remove_hook_x (SCM hook, SCM thunk);
SCM_API SCM scm_reset_hook_x (SCM hook);
SCM_API SCM scm_run_hook (SCM hook, SCM args);
SCM_API void scm_c_run_hook (SCM hook, SCM args);
SCM_API void scm_c_run_hookn (SCM hook, SCM *argv, size_t nargs);
SCM_API SCM scm_hook_to_list (SCM hook);
SCM_INTERNAL void scm_init_hooks (void);

#endif  /* SCM_HOOKS_H */

/*
  Local Variables:
  c-file-style: "gnu"
  End:
*/