Heuristic sorting of streams for solid compression

[wimlib] / include / wimlib / lookup_table.h

diff --git a/include/wimlib/lookup_table.h b/include/wimlib/lookup_table.h
index 9c727507c1682c5ecc112e298044e04d854655dd..4158f1578f1a9f79289d26eccb311803b3356c7d 100644 (file)
--- a/include/wimlib/lookup_table.h
+++ b/include/wimlib/lookup_table.h
@@ -213,9 +213,19 @@ struct wim_lookup_table_entry {
                        /* Links streams being written to the WIM.  */
                        struct list_head write_streams_list;
 
-                       /* Metadata for this stream in the WIM being written.
-                        */
-                       struct wim_reshdr out_reshdr;
+                       union {
+                               /* Metadata for this stream in the WIM being
+                                * written.  */
+                               struct wim_reshdr out_reshdr;
+
+                               struct {
+                                       /* Name under which this stream is being
+                                        * sorted; used only when sorting
+                                        * streams for solid compression.  */
+                                       utf16lechar *solid_sort_name;
+                                       size_t solid_sort_name_nbytes;
+                               };
+                       };
                };
 
                /* Used temporarily during extraction.  This is an array of
@@ -339,6 +349,9 @@ extern int
 sort_stream_list_by_sequential_order(struct list_head *stream_list,
                                     size_t list_head_offset);
 
+extern int
+cmp_streams_by_sequential_order(const void *p1, const void *p2);
+
 /* Utility functions  */
 
 extern int