Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

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

1 files changed, 165 insertions, 0 deletions

diff --git a/storage/archive/ha_archive.h b/storage/archive/ha_archive.h
new file mode 100644
index 00000000..2bb50798
--- /dev/null
+++ b/storage/archive/ha_archive.h
@@ -0,0 +1,165 @@
+/* Copyright (c) 2003, 2011, 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 <zlib.h>
+#include "azlib.h"
+
+/*
+  Please read ha_archive.cc first. If you are looking for more general
+  answers on how storage engines work, look at ha_example.cc and
+  ha_example.h.
+*/
+
+typedef struct st_archive_record_buffer {
+  uchar *buffer;
+  uint32 length;
+} archive_record_buffer;
+
+
+class Archive_share : public Handler_share
+{
+public:
+  mysql_mutex_t mutex;
+  THR_LOCK lock;
+  azio_stream archive_write;     /* Archive file we are working with */
+  ha_rows rows_recorded;    /* Number of rows in tables */
+  char table_name[FN_REFLEN];
+  char data_file_name[FN_REFLEN];
+  bool in_optimize;
+  bool archive_write_open;
+  bool dirty;               /* Flag for if a flush should occur */
+  bool crashed;             /* Meta file is crashed */
+  Archive_share();
+  virtual ~Archive_share();
+  int init_archive_writer();
+  void close_archive_writer();
+  int write_v1_metafile();
+  int read_v1_metafile();
+};
+
+/*
+  Version for file format.
+  1 - Initial Version (Never Released)
+  2 - Stream Compression, seperate blobs, no packing
+  3 - One stream (row and blobs), with packing
+*/
+#define ARCHIVE_VERSION 3
+
+class ha_archive final : public handler
+{
+  THR_LOCK_DATA lock;        /* MySQL lock */
+  Archive_share *share;      /* Shared lock info */
+  
+  azio_stream archive;            /* Archive file we are working with */
+  my_off_t current_position;  /* The position of the row we just read */
+  uchar byte_buffer[IO_SIZE]; /* Initial buffer for our string */
+  String buffer;             /* Buffer used for blob storage */
+  ha_rows scan_rows;         /* Number of rows left in scan */
+  bool delayed_insert;       /* If the insert is delayed */
+  bool bulk_insert;          /* If we are performing a bulk insert */
+  const uchar *current_key;
+  uint current_key_len;
+  uint current_k_offset;
+  archive_record_buffer *record_buffer;
+  bool archive_reader_open;
+
+  archive_record_buffer *create_record_buffer(unsigned int length);
+  void destroy_record_buffer(archive_record_buffer *r);
+  int frm_copy(azio_stream *src, azio_stream *dst);
+  int frm_compare(azio_stream *src);
+  unsigned int pack_row_v1(const uchar *record);
+
+public:
+  ha_archive(handlerton *hton, TABLE_SHARE *table_arg);
+  ~ha_archive()
+  {
+  }
+  const char *index_type(uint inx) { return "NONE"; }
+  ulonglong table_flags() const
+  {
+    return (HA_NO_TRANSACTIONS | HA_REC_NOT_IN_SEQ | HA_CAN_BIT_FIELD |
+            HA_BINLOG_ROW_CAPABLE | HA_BINLOG_STMT_CAPABLE |
+            HA_STATS_RECORDS_IS_EXACT | HA_CAN_EXPORT |
+            HA_HAS_RECORDS | HA_CAN_REPAIR | HA_SLOW_RND_POS |
+            HA_FILE_BASED | HA_CAN_INSERT_DELAYED | HA_CAN_GEOMETRY);
+  }
+  ulong index_flags(uint idx, uint part, bool all_parts) const
+  {
+    return HA_ONLY_WHOLE_INDEX;
+  }
+  virtual void get_auto_increment(ulonglong offset, ulonglong increment,
+                                  ulonglong nb_desired_values,
+                                  ulonglong *first_value,
+                                  ulonglong *nb_reserved_values);
+  uint max_supported_keys()          const { return 1; }
+  uint max_supported_key_length()    const { return sizeof(ulonglong); }
+  uint max_supported_key_part_length() const { return sizeof(ulonglong); }
+  ha_rows records() { return share->rows_recorded; }
+  int index_init(uint keynr, bool sorted);
+  virtual int index_read(uchar * buf, const uchar * key,
+			 uint key_len, enum ha_rkey_function find_flag);
+  virtual int index_read_idx(uchar * buf, uint index, const uchar * key,
+			     uint key_len, enum ha_rkey_function find_flag);
+  int index_next(uchar * buf);
+  int open(const char *name, int mode, uint test_if_locked);
+  int close(void);
+  int write_row(const uchar * buf);
+  int real_write_row(const uchar *buf, azio_stream *writer);
+  int truncate();
+  int rnd_init(bool scan=1);
+  int rnd_next(uchar *buf);
+  int rnd_pos(uchar * buf, uchar *pos);
+  int get_row(azio_stream *file_to_read, uchar *buf);
+  int get_row_version2(azio_stream *file_to_read, uchar *buf);
+  int get_row_version3(azio_stream *file_to_read, uchar *buf);
+  Archive_share *get_share(const char *table_name, int *rc);
+  int init_archive_reader();
+  // Always try auto_repair in case of HA_ERR_CRASHED_ON_USAGE
+  bool auto_repair(int error) const
+  { return error == HA_ERR_CRASHED_ON_USAGE; }
+  int read_data_header(azio_stream *file_to_read);
+  void position(const uchar *record);
+  int info(uint);
+  int extra(enum ha_extra_function operation);
+  void update_create_info(HA_CREATE_INFO *create_info);
+  int create(const char *name, TABLE *form, HA_CREATE_INFO *create_info);
+  int optimize(THD* thd, HA_CHECK_OPT* check_opt);
+  int repair(THD* thd, HA_CHECK_OPT* check_opt);
+  int check_for_upgrade(HA_CHECK_OPT *check_opt);
+  void start_bulk_insert(ha_rows rows, uint flags);
+  int end_bulk_insert();
+  enum row_type get_row_type() const 
+  { 
+    return ROW_TYPE_COMPRESSED;
+  }
+  THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to,
+                             enum thr_lock_type lock_type);
+  bool is_crashed() const;
+  int check(THD* thd, HA_CHECK_OPT* check_opt);
+  bool check_and_repair(THD *thd);
+  uint32 max_row_length(const uchar *buf);
+  bool fix_rec_buff(unsigned int length);
+  int unpack_row(azio_stream *file_to_read, uchar *record);
+  unsigned int pack_row(const uchar *record, azio_stream *writer);
+  bool check_if_incompatible_data(HA_CREATE_INFO *info, uint table_changes);
+  int external_lock(THD *thd, int lock_type);
+private:
+  void flush_and_clear_pending_writes();
+};
+