diff options
Diffstat (limited to 'include/sqfs')
| -rw-r--r-- | include/sqfs/inode.h | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/include/sqfs/inode.h b/include/sqfs/inode.h index 17df022..0323bef 100644 --- a/include/sqfs/inode.h +++ b/include/sqfs/inode.h @@ -483,15 +483,21 @@ struct sqfs_inode_generic_t { sqfs_inode_t base; /** - * @brief For file inodes, stores the number of blocks used. + * @brief Maximum number of available data bytes in the payload. + * + * This is used for dynamically growing an inode. The actual number + * of used payload bytes is stored in @ref payload_bytes_used. */ - size_t num_file_blocks; + sqfs_u32 payload_bytes_available; /** - * @brief For extended directory inodes, stores the number of payload - * bytes following for the directory index. + * @brief Number of used data bytes in the payload. + * + * For file inodes, stores the number of blocks used. For extended + * directory inodes, stores the number of payload bytes following + * for the directory index. */ - size_t num_dir_idx_bytes; + sqfs_u32 payload_bytes_used; /** * @brief Type specific inode data. @@ -525,6 +531,19 @@ extern "C" { #endif /** + * @brief Get the number of file blocks in a regular file inode. + * + * @param inode A pointer to an inode. + * + * @return The number of blocks. + */ +static SQFS_INLINE +size_t sqfs_inode_get_file_block_count(const sqfs_inode_generic_t *inode) +{ + return inode->payload_bytes_used / sizeof(sqfs_u32); +} + +/** * @brief Create a deep copy of a generic inode. * * The @ref sqfs_inode_generic_t structure contains inlined fields that have a |