diff options
author | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2019-05-20 11:56:28 +0200 |
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committer | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2019-05-20 12:02:53 +0200 |
commit | 13cc42ce135155f0437298540b0bc5a821d7a644 (patch) | |
tree | 18acd391d928db760a73d8b7c5231899ec7e7812 /include/frag_reader.h | |
parent | c2e01ed987e942005fa66f11d96b8edb1d930c99 (diff) |
cleanup: remove overly excessive comments
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'include/frag_reader.h')
-rw-r--r-- | include/frag_reader.h | 61 |
1 files changed, 16 insertions, 45 deletions
diff --git a/include/frag_reader.h b/include/frag_reader.h index 8a3d4cc..623cc8d 100644 --- a/include/frag_reader.h +++ b/include/frag_reader.h @@ -8,11 +8,7 @@ #include <stdint.h> #include <stddef.h> -/** - * @struct frag_reader_t - * - * @brief A simple interface for accessing fragments in a SquashFS image - */ +/* A simple interface for accessing fragments in a SquashFS image */ typedef struct { sqfs_fragment_t *tbl; size_t num_fragments; @@ -25,51 +21,26 @@ typedef struct { uint8_t buffer[]; } frag_reader_t; -/** - * @brief Create a fragment reader - * - * @memberof frag_reader_t - * - * This function internally reads and decodes the fragment table from the - * image and prints error messages to stderr on the way if it fails. - * - * @param super A pointer to the SquashFS super block read from the image - * @param fd A file descriptor of opened the SquashFS image - * @param cmp A pointer to a compressor object to be used for reading meta - * data blocks from the image. - * - * @return A pointer to a new fragment reader or NULL on failure - */ +/* Reads and decodes the fragment table from the image. Cleans up after itself + and prints error messages to stderr on the way if it fails. */ frag_reader_t *frag_reader_create(sqfs_super_t *super, int fd, compressor_t *cmp); -/** - * @brief Destroy a fragment reader and free all memory it uses - * - * @memberof frag_reader_t - * - * @param f A pointer to a fragment reader object - */ void frag_reader_destroy(frag_reader_t *f); -/** - * @brief Read tail-end packed data from a fragment - * - * @memberof frag_reader_t - * - * This function internally takes care of loading and uncompressing the - * fragment block (which is skipped if it has already been loaded earlier). - * It prints error messages to stderr on the way if it fails, including such - * errors as trying to index beyond the fragment table. - * - * @param f A pointer to a fragment reader object - * @param index A fragment index such as stored in an inode - * @param offset A byte offset into the fragment block addressed by the index - * @param buffer A pointer to a destination buffer to copy decoded data to - * @param size The number of bytes to copy into the destination buffer - * - * @return Zero on success, -1 on failure - */ +/* + Read data from a fragment. + + The function takes care of loading and uncompressing the fragment block + (which is skipped if it has already been loaded earlier). + + `index` is a fragment index from an inode, `offset` is a byte offset into + the fragment block and `size` is the number of bytes to copy into the + destination buffer. + + Returns 0 on success. Prints error messages to stderr on failure (including + index out of bounds). +*/ int frag_reader_read(frag_reader_t *f, size_t index, size_t offset, void *buffer, size_t size); |