http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/libguile/hooks.h

/* classes: h_files */ #ifndef SCM_HOOKS_H #define SCM_HOOKS_H /* Copyright (C) 1995,1996,1999,2000,2001 Free Software Foundation, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this software; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307 USA * * As a special exception, the Free Software Foundation gives permission * for additional uses of the text contained in its release of GUILE. * * The exception is that, if you link the GUILE library with other files * to produce an executable, this does not by itself cause the * resulting executable to be covered by the GNU General Public License. * Your use of that executable is in no way restricted on account of * linking the GUILE library code into it. * * This exception does not however invalidate any other reasons why * the executable file might be covered by the GNU General Public License. * * This exception applies only to the code released by the * Free Software Foundation under the name GUILE. If you copy * code from other Free Software Foundation releases into a copy of * GUILE, as the General Public License permits, the exception does * not apply to the code that you add in this way. To avoid misleading * anyone as to the status of such modified files, you must delete * this exception notice from them. * * If you write modifications of your own for GUILE, it is your choice * whether to permit this exception to apply to your modifications. * If you do not wish that, delete this exception notice. */ #include "libguile/__scm.h" /* * C level hooks */ /* * The interface is designed for and- and or-type hooks which * both may want to indicate success/failure and return a result. */ typedef enum scm_t_c_hook_type { SCM_C_HOOK_NORMAL, SCM_C_HOOK_OR, SCM_C_HOOK_AND } scm_t_c_hook_type; typedef void *(*scm_t_c_hook_function) (void *hook_data, void *func_data, void *data); typedef struct scm_t_c_hook_entry { struct scm_t_c_hook_entry *next; scm_t_c_hook_function func; void *data; } scm_t_c_hook_entry; typedef struct scm_t_c_hook { scm_t_c_hook_entry *first; scm_t_c_hook_type type; void *data; } scm_t_c_hook; extern void scm_c_hook_init (scm_t_c_hook *hook, void *hook_data, scm_t_c_hook_type type); extern void scm_c_hook_add (scm_t_c_hook *hook, scm_t_c_hook_function func, void *func_data, int appendp); extern void scm_c_hook_remove (scm_t_c_hook *hook, scm_t_c_hook_function func, void *func_data); extern void *scm_c_hook_run (scm_t_c_hook *hook, void *data); /* * Scheme level hooks */ extern scm_t_bits scm_tc16_hook; #define SCM_HOOKP(x) SCM_TYP16_PREDICATE (scm_tc16_hook, x) #define SCM_HOOK_ARITY(hook) (SCM_CELL_WORD_0 (hook) >> 16) #define SCM_HOOK_PROCEDURES(hook) SCM_CELL_OBJECT_1 (hook) #define SCM_SET_HOOK_PROCEDURES(hook, procs) SCM_SET_CELL_OBJECT_1 ((hook), (procs)) extern SCM scm_make_hook (SCM n_args); extern SCM scm_hook_p (SCM x); extern SCM scm_hook_empty_p (SCM hook); extern SCM scm_add_hook_x (SCM hook, SCM thunk, SCM appendp); extern SCM scm_remove_hook_x (SCM hook, SCM thunk); extern SCM scm_reset_hook_x (SCM hook); extern SCM scm_run_hook (SCM hook, SCM args); extern void scm_c_run_hook (SCM hook, SCM args); extern SCM scm_hook_to_list (SCM hook); extern void scm_init_hooks (void); #if (SCM_DEBUG_DEPRECATED == 0) extern SCM scm_create_hook (const char* name, int n_args); #endif #endif /* SCM_HOOKS_H */ /* Local Variables: c-file-style: "gnu" End: */