view.h

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/*
 * services/view.h - named views containing local zones authority service.
 *
 * Copyright (c) 2016, NLnet Labs. All rights reserved.
 *
 * This software is open source.
 * 
 * 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 NLNET LABS nor the names of its 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
 * HOLDER 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.
 */
 
#ifndef SERVICES_VIEW_H
#define SERVICES_VIEW_H
#include "util/rbtree.h"
#include "util/locks.h"
struct regional;
struct config_file;
struct config_view;
struct respip_set;
 
 
struct views {
    lock_rw_type lock;
    rbtree_type vtree;
};
 
struct view {
    rbnode_type node;
    char* name;
    struct local_zones* local_zones;
    struct respip_set* respip_set;
    int isfirst;
    lock_rw_type lock;
};
 
 
struct views* views_create(void);
 
void views_delete(struct views* v);
 
int views_apply_cfg(struct views* v, struct config_file* cfg);
 
int view_cmp(const void* v1, const void* v2);
 
void view_delete(struct view* v);
 
void views_print(struct views* v);
 
/* Find a view by name.
 * @param vs: views
 * @param name: name of the view we are looking for
 * @param write: 1 for obtaining write lock on found view, 0 for read lock
 * @return: locked view or NULL. 
 */
struct view* views_find_view(struct views* vs, const char* name, int write);
 
#endif /* SERVICES_VIEW_H */