piece-table: delete: Test better and fixes

1 files changed, 4 insertions, 3 deletions

diff --git a/src/piece-table.c b/src/piece-table.c
index ba88103..c7f9381 100644
--- a/src/piece-table.c
+++ b/src/piece-table.c
@@ -186,8 +186,8 @@ piece_table_piece_split(piece_table *pt, piece *p, size_t pos)
   /* Returns the first piece */
   piece *second;
   assert(pos < p->length);
-  assert(p->start != 0);    /* Not a sentinel piece */
-  assert(p->length != 0);   /* Not an empty piece (they should not exist) */
+  assert(p->buffer != NULL); /* Not a sentinel piece */
+  assert(p->length != 0);    /* Not an empty piece (they should not exist) */
   if ( pos == 0 )
     {
       return p->prev;
@@ -196,6 +196,7 @@ piece_table_piece_split(piece_table *pt, piece *p, size_t pos)
   second->length = p->length - pos;
   p->length = pos;
   second->next = p->next;
+  second->next->prev = second;
   p->next = second;
   second->prev = p;
   second->start = p->start + pos;
@@ -385,7 +386,7 @@ piece_table_create (char *orig)
   pt->sentinel->prev = original;
 
   pt->empty = NULL;
-  pt->cached = NULL;
+  pt->cached = original;
   pt->cached_offset = 0;
   return pt;
 }