/* RCS revision object implementation */
/* $Id: revision.c,v 1.6 2003/07/30 22:09:23 pasky Exp $ */

/*
 * Copyright (c) 2003  Petr Baudis.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials
 *     provided with the distribution.
 *   * Neither the name of the author nor the names of the product's
 *     contributors may be used to endorse or promote products
 *     derived from this software without specific prior written
 *     permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <assert.h>
#include <stdlib.h>

#include <librcs/librcs.h>
#include <librcs/revision.h>
#include <librev/inode.h>
#include <librev/revision.h>


static void rcs_revision_xdone (struct rev_revision *bj);

struct rcs_revision *
rcs_revision_init (struct rev_revision *rev)
{
	struct rcs_revision *obj = calloc (1, sizeof (struct rcs_revision));

	if (! obj) return NULL;

	obj->revision = rev;

	if (obj->revision) {
		static struct rev_revision_dataops dataops = {
			/* done: */ rcs_revision_xdone,
		};

		rcs_revision_associate (obj);
		obj->revision->data = obj;
		obj->revision->dataops = &dataops;
	}

	return obj;
}

void
rcs_revision_done (struct rcs_revision *obj)
{
	assert (obj && ! obj->refcount);

	if (obj->state) free (obj->state);

	free (obj);
}

static void
rcs_revision_xdone (struct rev_revision *bj)
{
	struct rcs_revision *obj;

	assert (bj && bj->data);
	obj = bj->data;

	rcs_revision_dissociate (obj);
}