![Guy Harris](/assets/img/avatar_default.png)
they have LF at the end of the line on UN*X and CR/LF on Windows; hopefully this means that if a CR/LF version is checked in on Windows, the CRs will be stripped so that they show up only when checked out on Windows, not on UN*X. svn path=/trunk/; revision=11400
135 lines
4.2 KiB
C
135 lines
4.2 KiB
C
/* conditions.h
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* Header for condition handler.
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef CONDITIONS_H
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#define CONDITIONS_H
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#include <stdarg.h>
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#include <glib.h>
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/* forward declaration for type 'condition' */
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typedef struct condition condition;
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/* condition evaluation handler type */
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typedef gboolean (*_cnd_eval)(condition*, va_list);
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/* condition reset handler type */
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typedef void (*_cnd_reset)(condition*);
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/* condition class constructor type */
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typedef condition* (*_cnd_constr)(condition*, va_list);
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/* condition class destructor type */
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typedef void (*_cnd_destr)(condition*);
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/*
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* Conditions must be created with this function. They can be created for
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* registered classes only.
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*
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* parameter: const char* - Identification of a registered condition class.
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* ... - Any number of class specific initial values.
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* returns: Pointer to a initialized condition of the particular class on
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* success or NULL on failure.
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*/
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condition* cnd_new(const char*, ...);
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/*
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* Conditions must be deleted with this function when not used anymore.
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*
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* parameter: condition* - Pointer to a condition created with 'cnd_new()'.
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* returns: -
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*/
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void cnd_delete(condition*);
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/*
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* Call this function to check whether or not a particular condition is true.
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*
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* parameter: condition* - Pointer to an initialized condition.
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* ... - Any number of condition specific arguments.
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* returns: TRUE - Condition is true.
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* FALSE - Condition is false.
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*/
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gboolean cnd_eval(condition*, ...);
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/*
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* Call this function to reset this condition to its initial state, i.e. the
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* state it was in right after creation.
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*
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* parameter: condition* - Pointer to an initialized condition.
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* returns: -
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*/
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void cnd_reset(condition*);
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/*
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* Register a new conditon class.
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* New conditions of this class can be created by calling 'cnd_new()' and
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* supplying the appropriate class id.
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*
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* parameter: const char* - The class id.
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* _cnd_constr - User supplied constructor function for this
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* class.
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* _cnd_destr - User supplied destructor function for this
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* class.
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* _cnd_eval - User supplied evaluation handler function for this
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class.
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* _cnd_reset - User supplied reset handler for this class.
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* returns: TRUE - Success.
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* FALSE - Failure.
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*/
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gboolean cnd_register_class(const char*,
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_cnd_constr,
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_cnd_destr,
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_cnd_eval,
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_cnd_reset);
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/*
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* Unregister a previously registered conditon class. After unregistration
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* of a class it is no longer possible to create conditions of this kind by
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* calling 'cnd_new()'.
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*
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* parameter: const char* - An identification for this condition class.
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* returns: -
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*/
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void cnd_unregister_class(const char*);
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/*
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* This function returns the user data of the condition.
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*
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* parameter: condition* - Pointer to an initialized condition.
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* returns: void* - Pointer to user data of this condition.
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*/
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void* cnd_get_user_data(condition*);
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/*
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* This function sets the user data of the condition.
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*
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* parameter: condition* - Pointer to an initialized condition.
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* void* - Pointer to user specified data structure.
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* returns: -
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*/
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void cnd_set_user_data(condition*, void*);
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#endif /* CONDITIONS_H */
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