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- /* Macros for using symbol sets for running lists of functions.
- Copyright (C) 1994 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #ifndef _SET_HOOKS_H
-
- #define __need_size_t
- #include <stddef.h>
- #include <sys/cdefs.h>
-
- /* Define a hook variable called NAME. Functions put on this hook take
- arguments described by PROTO. Use `text_set_element (NAME, FUNCTION)'
- from gnu-stabs.h to add a function to the hook. */
-
- #define DEFINE_HOOK(NAME, PROTO) \
- const struct \
- { \
- size_t n; \
- void (*fn[0]) __P (PROTO); \
- } NAME
-
- /* Run all the functions hooked on the set called NAME.
- Each function is called like this: `function ARGS'. */
-
- #define RUN_HOOK(NAME, ARGS) \
- do { \
- size_t i; \
- for (i = 0; i < NAME.n; ++i) \
- (*NAME.fn[i]) ARGS; \
- } while (0)
-
- /* Define a hook variable with NAME and PROTO, and a function called RUNNER
- which calls each function on the hook in turn, with ARGS. */
-
- #define DEFINE_HOOK_RUNNER(name, runner, proto, args) \
- DEFINE_HOOK (name, proto); void runner proto { RUN_HOOK (name, args); }
-
-
- #endif
-