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-rw-r--r--include/fstree.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/fstree.h b/include/fstree.h
index 608ff97..dbc76db 100644
--- a/include/fstree.h
+++ b/include/fstree.h
@@ -323,4 +323,13 @@ file_info_t *fragment_by_chksum(file_info_t *fi, uint32_t chksum,
uint64_t find_equal_blocks(file_info_t *file, file_info_t *list,
size_t block_size);
+/*
+ Optimize the order of the fstree file list for unpacking as to avoid
+ unpacking fragment blocks more than once and to improve locality when
+ fetching data from disk. The resulting list is returned in 'out'.
+ If num_jobs is > 1, the list is split up for parallel processing.
+ */
+void optimize_unpack_order(fstree_t *fs, size_t num_jobs,
+ file_info_t *out[num_jobs]);
+
#endif /* FSTREE_H */