piece-table: Add piece_buffer_empty

1 files changed, 20 insertions, 14 deletions

diff --git a/src/piece-table.c b/src/piece-table.c
index 21dbb1b..c170216 100644
--- a/src/piece-table.c
+++ b/src/piece-table.c
@@ -139,6 +139,26 @@ piece_buffer_create (size_t size)
   return pb;
 }
 
+void
+piece_buffer_destroy (piece_buffer *pb)
+{
+  piece_buffer *next;
+  do
+    {
+      next = pb->next;
+      free (pb);
+      pb = next;
+    }
+  while (pb != NULL);
+}
+
+void
+piece_buffer_empty (piece_buffer *pb)
+{
+  piece_buffer_destroy (pb->next);
+  pb->start -= pb->used;
+}
+
 piece *
 piece_buffer_bump (piece_buffer *pb)
 {
@@ -154,20 +174,6 @@ piece_buffer_bump (piece_buffer *pb)
   return &pb->start[pb->used++];
 }
 
-void
-piece_buffer_destroy (piece_buffer *pb)
-{
-  piece_buffer *next;
-  do
-    {
-      next = pb->next;
-      free (pb);
-      pb = next;
-    }
-  while (pb != NULL);
-}
-
-
 
 void
 piece_table_piece_mark_empty (piece_table *pt, piece *p)