cleanup: internalize meta reader/writer implementations

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

3 files changed, 8 insertions, 78 deletions

diff --git a/include/fstree.h b/include/fstree.h
index e8324a9..4986ec2 100644
--- a/include/fstree.h
+++ b/include/fstree.h
@@ -28,7 +28,7 @@ struct tree_xattr_t {
 	size_t num_attr;
 	size_t max_attr;
 
-	uint32_t block;
+	uint64_t block;
 	uint32_t offset;
 	uint32_t size;
 
diff --git a/include/meta_reader.h b/include/meta_reader.h
index 78c0db3..a662959 100644
--- a/include/meta_reader.h
+++ b/include/meta_reader.h
@@ -5,47 +5,7 @@
 #include "compress.h"
 #include "squashfs.h"
 
-/**
- * @struct meta_reader_t
- *
- * @brief Abstracts away I/O on SquashFS meta data
- */
-typedef struct {
-	/**
-	 * @brief The location of the current block in the file
-	 */
-	uint64_t block_offset;
-
-	/**
-	 * @brief The location of the next block after the current one
-	 */
-	uint64_t next_block;
-
-	/**
-	 * @brief A byte offset into the uncompressed data of the current block
-	 */
-	size_t offset;
-
-	/**
-	 * @brief The underlying file descriptor to read from
-	 */
-	int fd;
-
-	/**
-	 * @brief A pointer to the compressor to use for extracting data
-	 */
-	compressor_t *cmp;
-
-	/**
-	 * @brief The raw data read from the input file
-	 */
-	uint8_t data[SQFS_META_BLOCK_SIZE];
-
-	/**
-	 * @brief The uncompressed data read from the input file
-	 */
-	uint8_t scratch[SQFS_META_BLOCK_SIZE];
-} meta_reader_t;
+typedef struct meta_reader_t meta_reader_t;
 
 /**
  * @brief Create a meta data reader
diff --git a/include/meta_writer.h b/include/meta_writer.h
index 9dcc22d..6bcb29b 100644
--- a/include/meta_writer.h
+++ b/include/meta_writer.h
@@ -5,42 +5,7 @@
 #include "compress.h"
 #include "squashfs.h"
 
-/**
- * @struct meta_writer_t
- *
- * @brief Abstracts away I/O on SquashFS meta data
- */
-typedef struct {
-	/**
-	 * @brief A byte offset into the uncompressed data of the current block
-	 */
-	size_t offset;
-
-	/**
-	 * @brief The location of the current block in the file
-	 */
-	size_t block_offset;
-
-	/**
-	 * @brief The underlying file descriptor to write to
-	 */
-	int outfd;
-
-	/**
-	 * @brief A pointer to the compressor to use for compressing the data
-	 */
-	compressor_t *cmp;
-
-	/**
-	 * @brief The raw data chunk that data is appended to
-	 */
-	uint8_t data[SQFS_META_BLOCK_SIZE + 2];
-
-	/**
-	 * @brief Scratch buffer for compressing data
-	 */
-	uint8_t scratch[SQFS_META_BLOCK_SIZE + 2];
-} meta_writer_t;
+typedef struct meta_writer_t meta_writer_t;
 
 /**
  * @brief Create a meta data writer
@@ -102,4 +67,9 @@ int meta_writer_flush(meta_writer_t *m);
  */
 int meta_writer_append(meta_writer_t *m, const void *data, size_t size);
 
+void meta_writer_get_position(const meta_writer_t *m, uint64_t *block_start,
+			      uint32_t *offset);
+
+void meta_writer_reset(meta_writer_t *m);
+
 #endif /* META_WRITER_H */