Adding upstream version 1:10.11.6.upstream/1%10.11.6

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 143 insertions, 0 deletions

diff --git a/storage/oqgraph/ha_oqgraph.h b/storage/oqgraph/ha_oqgraph.h
new file mode 100644
index 00000000..c8e175df
--- /dev/null
+++ b/storage/oqgraph/ha_oqgraph.h
@@ -0,0 +1,143 @@
+/* Copyright (C) 2007-2013 Arjen G Lentz & Antony T Curtis for Open Query
+   Portions of this file copyright (C) 2000-2006 MySQL AB
+
+   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 02110-1335 USA */
+
+/* ======================================================================
+   Open Query Graph Computation Engine, based on a concept by Arjen Lentz
+   v3 implementation by Antony Curtis, Arjen Lentz, Andrew McDonnell
+   For more information, documentation, support, enhancement engineering,
+   see http://openquery.com/graph or contact graph@openquery.com
+   ======================================================================
+*/
+
+#ifdef USE_PRAGMA_INTERFACE
+#pragma interface			/* gcc class implementation */
+#endif
+
+#include "handler.h"
+#include "table.h"
+
+typedef struct oqgraph_info_st OQGRAPH_INFO;
+typedef uchar byte;
+
+namespace open_query
+{
+  struct row;
+  class oqgraph;
+  class oqgraph_share;
+}
+
+/* class for the the Open Query Graph handler */
+
+class ha_oqgraph: public handler
+{
+  TABLE_SHARE share[1];
+  bool have_table_share;
+  TABLE edges[1];
+  Field *origid;
+  Field *destid;
+  Field *weight;
+
+  open_query::oqgraph_share *graph_share;
+  open_query::oqgraph *graph;
+
+  int fill_record(byte*, const open_query::row&);
+
+public:
+#if MYSQL_VERSION_ID >= 50100
+  ha_oqgraph(handlerton *hton, TABLE_SHARE *table);
+  ulonglong table_flags() const;
+#else
+  ha_oqgraph(TABLE *table);
+  Table_flags table_flags() const;
+#endif
+  virtual ~ha_oqgraph();
+  const char *index_type(uint inx)
+  {
+    return "HASH";
+  }
+  /* Rows also use a fixed-size format */
+  enum row_type get_row_type() const { return ROW_TYPE_FIXED; }
+  ulong index_flags(uint inx, uint part, bool all_parts) const;
+  const char **bas_ext() const;
+  uint max_supported_keys()          const { return MAX_KEY; }
+  uint max_supported_key_part_length() const { return MAX_KEY_LENGTH; }
+  double scan_time() { return (double) 1000000000; }
+  double read_time(uint index, uint ranges, ha_rows rows)
+  { return 1; }
+
+  // Doesn't make sense to change the engine on a virtual table.
+  virtual bool can_switch_engines() { return false; }
+
+  int open(const char *name, int mode, uint test_if_locked);
+  int close(void);
+  int write_row(const byte * buf);
+  int update_row(const uchar * old_data, const uchar * new_data);
+  int delete_row(const byte * buf);
+  int index_read(byte * buf, const byte * key,
+		 uint key_len, enum ha_rkey_function find_flag);
+  int index_read_idx(byte * buf, uint idx, const byte * key,
+		     uint key_len, enum ha_rkey_function find_flag);
+  int index_next_same(byte * buf, const byte * key, uint key_len);
+  int rnd_init(bool scan);
+  int rnd_next(byte *buf);
+  int rnd_pos(byte * buf, byte *pos);
+  void position(const byte *record);
+  int info(uint);
+  int extra(enum ha_extra_function operation);
+  int external_lock(THD *thd, int lock_type);
+  int delete_all_rows(void);
+  ha_rows records_in_range(uint inx, const key_range *min_key,
+                           const key_range *max_key, page_range *pages);
+  int delete_table(const char *from);
+  int rename_table(const char * from, const char * to);
+  int create(const char *name, TABLE *form, HA_CREATE_INFO *create_info);
+  void update_create_info(HA_CREATE_INFO *create_info);
+
+  THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to,
+			     enum thr_lock_type lock_type);
+  int cmp_ref(const byte *ref1, const byte *ref2);
+
+  bool get_error_message(int error, String* buf);
+
+  void fprint_error(const char* fmt, ...);
+
+#if MYSQL_VERSION_ID < 100000
+  // Allow compatibility for build with 5.5.32
+  virtual const char *table_type() const { return hton_name(ht)->str; }
+#endif
+
+  my_bool register_query_cache_table(THD *thd, const char *table_key,
+                                     uint key_length,
+                                     qc_engine_callback
+                                     *engine_callback,
+                                     ulonglong *engine_data)
+  {
+    /* 
+      Do not put data from OQGRAPH tables into query cache (because there 
+      is no way to tell whether the data in the backing table has changed or 
+      not)
+    */
+    return FALSE;
+  }
+
+private:
+
+  // Various helper functions
+  int oqgraph_check_table_structure (TABLE *table_arg); 
+  bool validate_oqgraph_table_options();
+  void update_key_stats();
+  String error_message;
+};