diff options
Diffstat (limited to 'libsparse/backed_block.h')
| -rw-r--r-- | libsparse/backed_block.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/libsparse/backed_block.h b/libsparse/backed_block.h new file mode 100644 index 0000000..1a159be --- /dev/null +++ b/libsparse/backed_block.h @@ -0,0 +1,64 @@ +/* + * 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 |