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guile/libguile/guardians.h
Michael Livshin c0a5d88835 * guardians.c (F_GREEDY, F_LISTED, F_DESTROYED, GREEDY_P,
SET_GREEDY, LISTED_P, SET_LISTED, CLR_LISTED, DESTROYED_P,
 	SET_DESTROYED): new defines/macros.
	(GUARDIAN_LIVE, GUARDIAN_ZOMBIES, GUARDIAN_NEXT): deleted.
	(add_to_live_list): takes a `guardian_t *' now, not SCM.
	(guardian_print): print more info.
	(guardian_apply): check if the guardian is destroyed, and throw an
 	error if so.  take one more optional argument `throw_p'.
	(scm_guard): depending on the value of `throw_p', return a boolean
 	result.
	(scm_get_one_zombie): remove redundant property test.
	(guardian_t): represent the various (currently 3, I hope nothing
 	more gets added) boolean fields as bit flags.
	(scm_guardian_destroyed_p, scm_guardian_greedy_p): new predicates.
	(scm_destroy_guardian_x): new procedure.

	* guardians.h: added prototypes for `scm_guardian_greedy_p' and
	`scm_guardian_destroyed_p'.  changed prototype for `scm_guard'.
2001-01-04 13:00:31 +00:00

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/* classes: h_files */
#ifndef SCM_GUARDIANH
#define SCM_GUARDIANH
/* Copyright (C) 1998, 2000 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"
SCM scm_make_guardian (SCM greedy_p);
SCM scm_destroy_guardian_x (SCM guardian);
SCM scm_guardian_greedy_p (SCM guardian);
SCM scm_guardian_destroyed_p (SCM guardian);
/* these are to be called from C: */
SCM scm_guard (SCM guardian, SCM obj, int throw_p);
SCM scm_get_one_zombie (SCM guardian);
void scm_init_guardians (void);
#endif /* !SCM_GUARDIANH */
/*
Local Variables:
c-file-style: "gnu"
End:
*/