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

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

1 files changed, 105 insertions, 0 deletions

diff --git a/storage/blackhole/ha_blackhole.h b/storage/blackhole/ha_blackhole.h
new file mode 100644
index 00000000..04ca65f2
--- /dev/null
+++ b/storage/blackhole/ha_blackhole.h
@@ -0,0 +1,105 @@
+/* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+
+  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 St, Fifth Floor, Boston, MA 02110-1335  USA */
+
+#ifdef USE_PRAGMA_INTERFACE
+#pragma interface			/* gcc class implementation */
+#endif
+
+#include "thr_lock.h"                           /* THR_LOCK */
+#include "handler.h"                            /* handler */
+#include "table.h"                              /* TABLE_SHARE */
+#include "sql_const.h"                          /* MAX_KEY */
+
+/*
+  Shared structure for correct LOCK operation
+*/
+struct st_blackhole_share {
+  THR_LOCK lock;
+  uint use_count;
+  uint table_name_length;
+  char table_name[1];
+};
+
+
+/*
+  Class definition for the blackhole storage engine
+  "Dumbest named feature ever"
+*/
+class ha_blackhole final : public handler
+{
+  THR_LOCK_DATA lock;      /* MySQL lock */
+  st_blackhole_share *share;
+
+public:
+  ha_blackhole(handlerton *hton, TABLE_SHARE *table_arg);
+  ~ha_blackhole() = default;
+  /*
+    The name of the index type that will be used for display
+    don't implement this method unless you really have indexes
+  */
+  const char *index_type(uint key_number);
+  ulonglong table_flags() const
+  {
+    return(HA_NULL_IN_KEY | HA_CAN_FULLTEXT | HA_CAN_SQL_HANDLER |
+           HA_BINLOG_STMT_CAPABLE | HA_BINLOG_ROW_CAPABLE |
+           HA_CAN_INDEX_BLOBS | HA_AUTO_PART_KEY | HA_CAN_ONLINE_BACKUPS |
+           HA_FILE_BASED | HA_CAN_GEOMETRY | HA_CAN_INSERT_DELAYED);
+  }
+  ulong index_flags(uint inx, uint part, bool all_parts) const
+  {
+    return ((table_share->key_info[inx].algorithm == HA_KEY_ALG_FULLTEXT) ?
+            0 : HA_READ_NEXT | HA_READ_PREV | HA_READ_RANGE |
+            HA_READ_ORDER | HA_KEYREAD_ONLY);
+  }
+  /* The following defines can be increased if necessary */
+#define BLACKHOLE_MAX_KEY	MAX_KEY		/* Max allowed keys */
+#define BLACKHOLE_MAX_KEY_SEG	16		/* Max segments for key */
+#define BLACKHOLE_MAX_KEY_LENGTH	3500		/* Like in InnoDB */
+  uint max_supported_keys()          const { return BLACKHOLE_MAX_KEY; }
+  uint max_supported_key_length()    const { return BLACKHOLE_MAX_KEY_LENGTH; }
+  uint max_supported_key_part_length() const { return BLACKHOLE_MAX_KEY_LENGTH; }
+  int open(const char *name, int mode, uint test_if_locked);
+  int close(void);
+  int truncate();
+  int rnd_init(bool scan);
+  int rnd_next(uchar *buf);
+  int rnd_pos(uchar * buf, uchar *pos);
+  int index_read_map(uchar * buf, const uchar * key, key_part_map keypart_map,
+                     enum ha_rkey_function find_flag);
+  int index_read_idx_map(uchar * buf, uint idx, const uchar * key,
+                         key_part_map keypart_map,
+                         enum ha_rkey_function find_flag);
+  int index_read_last_map(uchar * buf, const uchar * key, key_part_map keypart_map);
+  int index_next(uchar * buf);
+  int index_prev(uchar * buf);
+  int index_first(uchar * buf);
+  int index_last(uchar * buf);
+  void position(const uchar *record);
+  int info(uint flag);
+  int external_lock(THD *thd, int lock_type);
+  int create(const char *name, TABLE *table_arg,
+             HA_CREATE_INFO *create_info);
+  THR_LOCK_DATA **store_lock(THD *thd,
+                             THR_LOCK_DATA **to,
+                             enum thr_lock_type lock_type);
+  int delete_table(const char *name)
+  {
+    return 0;
+  }
+private:
+  virtual int write_row(const uchar *buf);
+  virtual int update_row(const uchar *old_data, const uchar *new_data);
+  virtual int delete_row(const uchar *buf);
+};