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/*
* Copyright (C) 2015-2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include "block_tree.h"
struct block_map {
struct block_tree tree;
};
#define BLOCK_MAP_INITIAL_VALUE(block_map) \
{ .tree = BLOCK_TREE_INITIAL_VALUE(block_map.tree), }
struct block_map_path {
struct block_tree_path path;
};
void block_map_init(const struct transaction* tr,
struct block_map* block_map,
const struct block_mac* root,
size_t block_size);
bool block_map_get(struct transaction* tr,
struct block_map* block_map,
data_block_t index,
struct block_mac* block_mac);
void block_map_set(struct transaction* tr,
struct block_map* block_map,
data_block_t index,
const struct block_mac* block_mac);
void block_map_put_dirty(struct transaction* tr,
struct block_map* block_map,
data_block_t index,
void* data,
struct obj_ref* data_ref);
void block_map_truncate(struct transaction* tr,
struct block_map* block_map,
data_block_t index);
bool block_map_check(struct transaction* tr,
struct block_map* block_map,
data_block_t count);
void block_map_free(struct transaction* tr, struct block_map* block_map);
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