diff options
author | unknown <brian@zim.(none)> | 2005-09-28 19:04:51 -0700 |
---|---|---|
committer | unknown <brian@zim.(none)> | 2005-09-28 19:04:51 -0700 |
commit | 5c24a8feef931f4769a1b9e5625004ba7a54b22c (patch) | |
tree | bb92cbf8665195bd13d26505fef281da28afbab7 /sql/ha_archive.h | |
parent | 0fda286a415777e755d4bc076d4d35f27c071219 (diff) | |
download | mariadb-git-5c24a8feef931f4769a1b9e5625004ba7a54b22c.tar.gz |
Moving archive from example to sql.
sql/ha_archive.h:
Rename: sql/examples/ha_archive.h -> sql/ha_archive.h
libmysqld/Makefile.am:
Moved archive files references
sql/Makefile.am:
Moved archive from example to sql
sql/ha_archive.cc:
Moved location of prov file.
sql/handler.cc:
Moved location from examples to sql
Diffstat (limited to 'sql/ha_archive.h')
-rw-r--r-- | sql/ha_archive.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/sql/ha_archive.h b/sql/ha_archive.h new file mode 100644 index 00000000000..e2d8aa49add --- /dev/null +++ b/sql/ha_archive.h @@ -0,0 +1,110 @@ +/* Copyright (C) 2003 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; either version 2 of the License, or + (at your option) any later version. + + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +#ifdef USE_PRAGMA_INTERFACE +#pragma interface /* gcc class implementation */ +#endif + +#include <zlib.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_share { + char *table_name; + char data_file_name[FN_REFLEN]; + uint table_name_length,use_count; + pthread_mutex_t mutex; + THR_LOCK lock; + File meta_file; /* Meta file we use */ + gzFile archive_write; /* Archive file we are working with */ + bool dirty; /* Flag for if a flush should occur */ + bool crashed; /* Meta file is crashed */ + ha_rows rows_recorded; /* Number of rows in tables */ +} ARCHIVE_SHARE; + +/* + Version for file format. + 1 - Initial Version +*/ +#define ARCHIVE_VERSION 1 + +class ha_archive: public handler +{ + THR_LOCK_DATA lock; /* MySQL lock */ + ARCHIVE_SHARE *share; /* Shared lock info */ + gzFile archive; /* Archive file we are working with */ + z_off_t current_position; /* The position of the row we just read */ + byte 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 */ + +public: + ha_archive(TABLE *table_arg); + ~ha_archive() + { + } + const char *table_type() const { return "ARCHIVE"; } + const char *index_type(uint inx) { return "NONE"; } + const char **bas_ext() const; + ulong table_flags() const + { + return (HA_REC_NOT_IN_SEQ | HA_NOT_EXACT_COUNT | HA_NO_AUTO_INCREMENT | + HA_FILE_BASED | HA_CAN_INSERT_DELAYED); + } + ulong index_flags(uint idx, uint part, bool all_parts) const + { + return 0; + } + int open(const char *name, int mode, uint test_if_locked); + int close(void); + int write_row(byte * buf); + int real_write_row(byte *buf, gzFile writer); + int delete_all_rows(); + int rnd_init(bool scan=1); + int rnd_next(byte *buf); + int rnd_pos(byte * buf, byte *pos); + int get_row(gzFile file_to_read, byte *buf); + int read_meta_file(File meta_file, ha_rows *rows); + int write_meta_file(File meta_file, ha_rows rows, bool dirty); + ARCHIVE_SHARE *get_share(const char *table_name, TABLE *table); + int free_share(ARCHIVE_SHARE *share); + bool auto_repair() const { return 1; } // For the moment we just do this + int read_data_header(gzFile file_to_read); + int write_data_header(gzFile file_to_write); + void position(const byte *record); + void info(uint); + 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); + void start_bulk_insert(ha_rows rows); + 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); +}; + +handlerton *archive_db_init(void); +bool archive_db_end(void); + |