Move block block accounting to the other end of the block pipeline

This commit moves all of the fragment/block accounting in the block
processor over to the writing end of the pipeline. In order to do
this, the sparse blocks are allowed to bubble through the pipeline.

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

1 files changed, 6 insertions, 0 deletions

diff --git a/include/sqfs/block.h b/include/sqfs/block.h
index 30fcc1d..b4860ac 100644
--- a/include/sqfs/block.h
+++ b/include/sqfs/block.h
@@ -89,6 +89,12 @@ typedef enum {
 	SQFS_BLK_DONT_FRAGMENT = 0x0004,
 
 	/**
+	 * @brief Set by the @ref sqfs_block_processor_t if it determines a
+	 *        block of a file to be sparse, i.e. only zero bytes.
+	 */
+	SQFS_BLK_IS_SPARSE = 0x0400,
+
+	/**
 	 * @brief Set by the @ref sqfs_block_processor_t on the first
 	 *        block of a file.
 	 */