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author | unknown <sergefp@mysql.com> | 2004-04-28 19:27:56 +0400 |
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committer | unknown <sergefp@mysql.com> | 2004-04-28 19:27:56 +0400 |
commit | 2902f9e8a57ca76cc52863d70d02dcf7693ce8cd (patch) | |
tree | 4864372894fc29ff2e4d9de93f2c438b29184acb /sql/ha_ndbcluster.h | |
parent | 15e207b0e7d1cd010b9e0eea4663c98e1eb209de (diff) | |
parent | 5605374b668068ef5ede826b3d04e2fe7ead4f9f (diff) | |
download | mariadb-git-2902f9e8a57ca76cc52863d70d02dcf7693ce8cd.tar.gz |
Merge spetrunia@bk-internal.mysql.com:/home/bk/mysql-4.1
into mysql.com:/dbdata/psergey/mysql-4.1-ps-merge
sql/lex.h:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
Diffstat (limited to 'sql/ha_ndbcluster.h')
-rw-r--r-- | sql/ha_ndbcluster.h | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/sql/ha_ndbcluster.h b/sql/ha_ndbcluster.h new file mode 100644 index 00000000000..ed66d07d79b --- /dev/null +++ b/sql/ha_ndbcluster.h @@ -0,0 +1,218 @@ +/* Copyright (C) 2000-2003 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 */ + +/* + This file defines the NDB Cluster handler: the interface between MySQL and + NDB Cluster +*/ + +/* The class defining a handle to an NDB Cluster table */ + +#ifdef __GNUC__ +#pragma interface /* gcc class implementation */ +#endif + +#include <ndbapi_limits.h> +#include <ndb_types.h> + +class Ndb; // Forward declaration +class NdbOperation; // Forward declaration +class NdbConnection; // Forward declaration +class NdbRecAttr; // Forward declaration +class NdbResultSet; // Forward declaration + +typedef enum ndb_index_type { + UNDEFINED_INDEX = 0, + PRIMARY_KEY_INDEX = 1, + UNIQUE_INDEX = 2, + ORDERED_INDEX = 3 +} NDB_INDEX_TYPE; + + +typedef struct st_ndbcluster_share { + THR_LOCK lock; + pthread_mutex_t mutex; + char *table_name; + uint table_name_length,use_count; +} NDB_SHARE; + +class ha_ndbcluster: public handler +{ + public: + ha_ndbcluster(TABLE *table); + ~ha_ndbcluster(); + + int open(const char *name, int mode, uint test_if_locked); + int close(void); + + int write_row(byte *buf); + int update_row(const byte *old_data, byte *new_data); + int delete_row(const byte *buf); + int index_init(uint index); + int index_end(); + int index_read(byte *buf, const byte *key, uint key_len, + enum ha_rkey_function find_flag); + int index_read_idx(byte *buf, uint index, const byte *key, uint key_len, + enum ha_rkey_function find_flag); + int index_next(byte *buf); + int index_prev(byte *buf); + int index_first(byte *buf); + int index_last(byte *buf); + int rnd_init(bool scan=1); + int rnd_end(); + int rnd_next(byte *buf); + int rnd_pos(byte *buf, byte *pos); + void position(const byte *record); + + void info(uint); + int extra(enum ha_extra_function operation); + int extra_opt(enum ha_extra_function operation, ulong cache_size); + int reset(); + int external_lock(THD *thd, int lock_type); + int start_stmt(THD *thd); + const char * table_type() const { return("ndbcluster");} + const char ** bas_ext() const; + ulong table_flags(void) const { return m_table_flags; } + ulong index_flags(uint idx) const; + uint max_record_length() const { return NDB_MAX_TUPLE_SIZE; }; + uint max_keys() const { return MAX_KEY; } + uint max_key_parts() const { return NDB_MAX_NO_OF_ATTRIBUTES_IN_KEY; }; + uint max_key_length() const { return NDB_MAX_KEY_SIZE;}; + + int rename_table(const char *from, const char *to); + int delete_table(const char *name); + int create(const char *name, TABLE *form, HA_CREATE_INFO *info); + THR_LOCK_DATA **store_lock(THD *thd, + THR_LOCK_DATA **to, + enum thr_lock_type lock_type); + + bool low_byte_first() const + { +#ifdef WORDS_BIGENDIAN + return false; +#else + return true; +#endif + } + bool has_transactions() { return true;} + + const char* index_type(uint key_number) { + switch (get_index_type(key_number)) { + case ORDERED_INDEX: + return "BTREE"; + case UNIQUE_INDEX: + case PRIMARY_KEY_INDEX: + default: + return "HASH"; + } + } + + double scan_time(); + ha_rows records_in_range(int inx, + const byte *start_key,uint start_key_len, + enum ha_rkey_function start_search_flag, + const byte *end_key,uint end_key_len, + enum ha_rkey_function end_search_flag); + + + static Ndb* seize_ndb(); + static void release_ndb(Ndb* ndb); + + + private: + int alter_table_name(const char *from, const char *to); + int drop_table(); + int create_index(const char *name, KEY *key_info); + int initialize_autoincrement(const void* table); + int get_metadata(const char* path); + void release_metadata(); + const char* get_index_name(uint idx_no) const; + NDB_INDEX_TYPE get_index_type(uint idx_no) const; + NDB_INDEX_TYPE get_index_type_from_table(uint index_no) const; + + int pk_read(const byte *key, uint key_len, + byte *buf); + int unique_index_read(const byte *key, uint key_len, + byte *buf); + int ordered_index_scan(const byte *key, uint key_len, + byte *buf, + enum ha_rkey_function find_flag); + int full_table_scan(byte * buf); + int next_result(byte *buf); +#if 0 + int filtered_scan(const byte *key, uint key_len, + byte *buf, + enum ha_rkey_function find_flag); +#endif + + void unpack_record(byte *buf); + + void set_dbname(const char *pathname); + void set_tabname(const char *pathname); + void set_tabname(const char *pathname, char *tabname); + + bool set_hidden_key(NdbOperation*, + uint fieldnr, const byte* field_ptr); + int set_ndb_key(NdbOperation*, Field *field, + uint fieldnr, const byte* field_ptr); + int set_ndb_value(NdbOperation*, Field *field, uint fieldnr); + int get_ndb_value(NdbOperation*, uint fieldnr, byte *field_ptr); + int set_primary_key(NdbOperation *op, const byte *key); + int set_primary_key(NdbOperation *op); + int key_cmp(uint keynr, const byte * old_row, const byte * new_row); + void print_results(); + + longlong get_auto_increment(); + + int ndb_err(NdbConnection*); + + private: + int check_ndb_connection(); + + NdbConnection *m_active_trans; + NdbResultSet *m_active_cursor; + Ndb *m_ndb; + void *m_table; + char m_dbname[FN_HEADLEN]; + //char m_schemaname[FN_HEADLEN]; + char m_tabname[FN_HEADLEN]; + ulong m_table_flags; + THR_LOCK_DATA m_lock; + NDB_SHARE *m_share; + NDB_INDEX_TYPE m_indextype[MAX_KEY]; + NdbRecAttr *m_value[NDB_MAX_ATTRIBUTES_IN_TABLE]; + bool m_use_write; +}; + +bool ndbcluster_init(void); +bool ndbcluster_end(void); + +int ndbcluster_commit(THD *thd, void* ndb_transaction); +int ndbcluster_rollback(THD *thd, void* ndb_transaction); + +void ndbcluster_close_connection(THD *thd); + +int ndbcluster_discover(const char* dbname, const char* name, + const void** frmblob, uint* frmlen); +int ndbcluster_drop_database(const char* path); + + + + + + + + |