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/*
* Copyright (C) 2010 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.
*/
#ifndef _BACKED_BLOCK_H_
#define _BACKED_BLOCK_H_
#include <stdint.h>
struct backed_block_list;
struct backed_block;
enum backed_block_type {
BACKED_BLOCK_DATA,
BACKED_BLOCK_FILE,
BACKED_BLOCK_FD,
BACKED_BLOCK_FILL,
};
int backed_block_add_data(struct backed_block_list* bbl, void* data, unsigned int len,
unsigned int block);
int backed_block_add_fill(struct backed_block_list* bbl, unsigned int fill_val, unsigned int len,
unsigned int block);
int backed_block_add_file(struct backed_block_list* bbl, const char* filename, int64_t offset,
unsigned int len, unsigned int block);
int backed_block_add_fd(struct backed_block_list* bbl, int fd, int64_t offset, unsigned int len,
unsigned int block);
struct backed_block* backed_block_iter_new(struct backed_block_list* bbl);
struct backed_block* backed_block_iter_next(struct backed_block* bb);
unsigned int backed_block_len(struct backed_block* bb);
unsigned int backed_block_block(struct backed_block* bb);
void* backed_block_data(struct backed_block* bb);
const char* backed_block_filename(struct backed_block* bb);
int backed_block_fd(struct backed_block* bb);
int64_t backed_block_file_offset(struct backed_block* bb);
uint32_t backed_block_fill_val(struct backed_block* bb);
enum backed_block_type backed_block_type(struct backed_block* bb);
int backed_block_split(struct backed_block_list* bbl, struct backed_block* bb, unsigned int max_len);
struct backed_block* backed_block_iter_new(struct backed_block_list* bbl);
struct backed_block* backed_block_iter_next(struct backed_block* bb);
struct backed_block_list* backed_block_list_new(unsigned int block_size);
void backed_block_list_destroy(struct backed_block_list* bbl);
void backed_block_list_move(struct backed_block_list* from, struct backed_block_list* to,
struct backed_block* start, struct backed_block* end);
#endif
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