1 files changed, 0 insertions, 116 deletions
diff --git a/storage/ndb/src/kernel/blocks/dbtup/Undo_buffer.cpp b/storage/ndb/src/kernel/blocks/dbtup/Undo_buffer.cpp
deleted file mode 100644
index bb45f4e0e0e..00000000000
--- a/storage/ndb/src/kernel/blocks/dbtup/Undo_buffer.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-/* Copyright (c) 2003, 2005, 2006 MySQL AB
-   Use is subject to license terms
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; version 2 of the License.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA */
-
-#include "Undo_buffer.hpp"
-#define DBTUP_C
-#include "Dbtup.hpp"
-
-#if ZPAGE_STATE_POS != 0
-#error "PROBLEM!"
-#endif
-
-struct UndoPage
-{
-  File_formats::Page_header m_page_header;
-  Uint32 _tupdata1;
-  Uint32 m_state; // Used by buddy alg
-  Uint32 m_words_used;
-  Uint32 m_ref_count;
-  Uint32 m_data[GLOBAL_PAGE_SIZE_WORDS-4-(sizeof(File_formats::Page_header)>>2)];
-  
-  STATIC_CONST( DATA_WORDS = GLOBAL_PAGE_SIZE_WORDS-4-(sizeof(File_formats::Page_header)>>2) );
-};
-
-Undo_buffer::Undo_buffer(Dbtup* tup)
-{
-  m_tup= tup;
-  m_first_free= RNIL;
-}
-
-Uint32 *
-Undo_buffer::alloc_copy_tuple(Local_key* dst, Uint32 words)
-{
-  UndoPage* page;
-  assert(words);
-  if(m_first_free == RNIL)
-  {
-    Uint32 count;
-    m_tup->allocConsPages(1, count, m_first_free);
-    if(count == 0)
-      return 0;
-    page= (UndoPage*)m_tup->c_page_pool.getPtr(m_first_free);
-    page->m_state= ~ZFREE_COMMON;
-    page->m_words_used= 0;
-    page->m_ref_count= 0;
-  }
-  
-  page= (UndoPage*)m_tup->c_page_pool.getPtr(m_first_free);
-  
-  Uint32 pos= page->m_words_used;
-  if(words + pos > UndoPage::DATA_WORDS)
-  {
-    m_first_free= RNIL;
-    return alloc_copy_tuple(dst, words);
-  }
-  
-  dst->m_page_no = m_first_free;
-  dst->m_page_idx = pos;
-  
-  page->m_ref_count++;
-  page->m_words_used = pos + words;
-  return page->m_data + pos;
-}
-
-void
-Undo_buffer::shrink_copy_tuple(Local_key* key, Uint32 words)
-{
-  assert(key->m_page_no == m_first_free);
-  UndoPage* page= (UndoPage*)m_tup->c_page_pool.getPtr(key->m_page_no); 
-  assert(page->m_words_used >= words);
-  page->m_words_used -= words;
-}
-
-void
-Undo_buffer::free_copy_tuple(Local_key* key)
-{
-  UndoPage* page= (UndoPage*)m_tup->c_page_pool.getPtr(key->m_page_no);
-  Uint32 cnt= page->m_ref_count;
-  assert(cnt);
-
-  page->m_ref_count= cnt - 1;
-  
-  if(cnt - 1 == 0)
-  {
-    page->m_words_used= 0;
-    if(m_first_free == key->m_page_no)
-    {
-      //ndbout_c("resetting page");
-    }
-    else 
-    {
-      //ndbout_c("returning page");
-      m_tup->returnCommonArea(key->m_page_no, 1);
-    }
-  }
-  key->setNull();
-}
-
-Uint32 *
-Undo_buffer::get_ptr(Local_key* key)
-{
-  return ((UndoPage*)(m_tup->c_page_pool.getPtr(key->m_page_no)))->m_data+key->m_page_idx;
-}
-