diff options
Diffstat (limited to 'include/sqfs/block_processor.h')
| -rw-r--r-- | include/sqfs/block_processor.h | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/include/sqfs/block_processor.h b/include/sqfs/block_processor.h index c6dd734..a1e6f2b 100644 --- a/include/sqfs/block_processor.h +++ b/include/sqfs/block_processor.h @@ -43,112 +43,6 @@ * and finally writing it to disk. */ -/** - * @struct sqfs_block_hooks_t - * - * @brief A set of hooks for tapping into the data writer. - * - * This structure can be registered with an @ref sqfs_block_processor_t and - * contains function pointers that will be called during various stages - * when writing data to disk. - * - * The callbacks can not only be used for accounting but may also write extra - * data to the output file or make modifications to the blocks before they are - * writtien. - * - * The callbacks can be individually set to NULL to disable them. - */ -struct sqfs_block_hooks_t { - /** - * @brief Set this to the size of the struct. - * - * This is required for future expandabillity while maintaining ABI - * compatibillity. At the current time, the implementation of - * @ref sqfs_block_processor_set_hooks rejects any hook struct where - * this isn't the exact size. If new hooks are added in the future, - * the struct grows and the future implementation can tell by the size - * whether the application uses the new version or the old one. - */ - size_t size; - - /** - * @brief Gets called before writing a block to disk. - * - * If this is not NULL, it gets called before a block is written to - * disk. If the block has the @ref SQFS_BLK_ALIGN flag set, the - * function is called before padding the file. - * - * The function may modify the block itself or write data to the file. - * which is taken into account when padding the file. - * - * @param user A user pointer. - * @param block The block that is about to be written. - * @param file The file that the block will be written to. - */ - void (*pre_block_write)(void *user, sqfs_block_t *block, - sqfs_file_t *file); - - /** - * @brief Gets called after writing a block to disk. - * - * If this is not NULL, it gets called after a block is written to - * disk. If the block has the @ref SQFS_BLK_ALIGN flag set, the - * function is called before padding the file. - * - * Modifying the block is rather pointless, but the function may - * write data to the file which is taken into account when padding - * the file. - * - * @param user A user pointer. - * @param block The block that is about to be written. - * @param file The file that the block was written to. - */ - void (*post_block_write)(void *user, const sqfs_block_t *block, - sqfs_file_t *file); - - /** - * @brief Gets called before storing a fragment in a fragment block. - * - * The function can modify the block before it is stored. - * - * @param user A user pointer. - * @param block The data chunk that is about to be merged into the - * fragment block. - */ - void (*pre_fragment_store)(void *user, sqfs_block_t *block); - - /** - * @brief Gets called if block deduplication managed to get - * rid of the data blocks of a file. - * - * @param user A user pointer. - * @param count The number of blocks that have been erased. - * @param bytes The number of bytes that have been erased. Includes - * potential padding before and after the end. - */ - void (*notify_blocks_erased)(void *user, size_t count, - sqfs_u64 bytes); - - /** - * @brief Gets called before throwing away a fragment that turned out - * to be a duplicate. - * - * @param user A user pointer. - * @param block The data chunk that is about to be merged into the - * fragment block. - */ - void (*notify_fragment_discard)(void *user, const sqfs_block_t *block); - - /** - * @brief Gets called before writing a block of padding bytes to disk. - * - * @param user A user pointer. - * @param block The padding bytes that are about to be written. - * @param count The number of padding bytes in the block. - */ - void (*prepare_padding)(void *user, sqfs_u8 *block, size_t count); -}; - #ifdef __cplusplus extern "C" { #endif |