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bool update_file_opened;
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55
bool tina_write_opened;
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File meta_file; /* Meta file we use */
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File tina_write_filedes; /* File handler for readers */
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int meta_file; /* Meta file we use */
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int tina_write_filedes; /* File Cursor for readers */
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bool crashed; /* Meta file is crashed */
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ha_rows rows_recorded; /* Number of rows in tables */
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uint data_file_version; /* Version of the data file used */
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uint32_t data_file_version; /* Version of the data file used */
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class ha_tina: public handler
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class ha_tina: public Cursor
62
70
THR_LOCK_DATA lock; /* MySQL lock */
63
TINA_SHARE *share; /* Shared lock info */
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TinaShare *share; /* Shared lock info */
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off_t current_position; /* Current position in the file during a file scan */
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off_t next_position; /* Next position in the file scan */
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74
off_t local_saved_data_file_length; /* save position for reads */
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75
off_t temp_file_length;
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uchar byte_buffer[IO_SIZE];
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unsigned char byte_buffer[IO_SIZE];
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77
Transparent_file *file_buff;
70
File data_file; /* File handler for readers */
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File update_temp_file;
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int data_file; /* File Cursor for readers */
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82
The chain contains "holes" in the file, occured because of
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86
tina_set chain_buffer[DEFAULT_CHAIN_LENGTH];
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tina_set *chain_ptr;
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unsigned char chain_alloced;
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90
uint32_t chain_size;
83
uint local_data_file_version; /* Saved version of the data file used */
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uint32_t local_data_file_version; /* Saved version of the data file used */
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92
bool records_is_known;
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drizzled::memory::Root blobroot;
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95
bool get_write_pos(off_t *end_pos, tina_set *closest_hole);
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96
int open_update_temp_file_if_needed();
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97
int init_tina_writer();
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98
int init_data_file();
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ha_tina(handlerton *hton, TABLE_SHARE *table_arg);
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ha_tina(drizzled::plugin::StorageEngine &engine, TableShare &table_arg);
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if (chain_alloced)
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107
delete file_buff;
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109
const char *table_type(void) const { return "CSV"; }
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const char *index_type(uint inx __attribute__((unused)))
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const char *index_type(uint32_t)
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111
{ return "NONE"; }
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const char **bas_ext() const;
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uint64_t table_flags() const
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return (HA_NO_TRANSACTIONS | HA_REC_NOT_IN_SEQ | HA_NO_AUTO_INCREMENT |
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HA_BINLOG_ROW_CAPABLE | HA_BINLOG_STMT_CAPABLE);
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uint32_t index_flags(uint idx __attribute__((unused)),
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uint part __attribute__((unused)),
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bool all_parts __attribute__((unused))) const
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We will never have indexes so this will never be called(AKA we return
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uint max_record_length() const { return HA_MAX_REC_LENGTH; }
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uint max_keys() const { return 0; }
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uint max_key_parts() const { return 0; }
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uint max_key_length() const { return 0; }
126
114
Called in test_quick_select to determine if indexes should be used.
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116
virtual double scan_time() { return (double) (stats.records+stats.deleted) / 20.0+10; }
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/* The next method will never be called */
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virtual bool fast_key_read() { return 1;}
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121
TODO: return actual upper bound of number of records in the table.
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(e.g. save number of records seen on full table scan and/or use file size
136
125
ha_rows estimate_rows_upper_bound() { return HA_POS_ERROR; }
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int open(const char *name, int mode, uint open_options);
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int open(const char *name, int mode, uint32_t open_options);
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int write_row(uchar * buf);
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int update_row(const uchar * old_data, uchar * new_data);
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int delete_row(const uchar * buf);
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int write_row(unsigned char * buf);
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int update_row(const unsigned char * old_data, unsigned char * new_data);
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int delete_row(const unsigned char * buf);
143
132
int rnd_init(bool scan=1);
144
int rnd_next(uchar *buf);
145
int rnd_pos(uchar * buf, uchar *pos);
146
bool check_and_repair(THD *thd);
147
int check(THD* thd, HA_CHECK_OPT* check_opt);
148
bool is_crashed() const;
133
int rnd_next(unsigned char *buf);
134
int rnd_pos(unsigned char * buf, unsigned char *pos);
150
int repair(THD* thd, HA_CHECK_OPT* check_opt);
136
TinaShare *get_share(const char *table_name);
138
int repair(Session* session, HA_CHECK_OPT* check_opt);
151
139
/* This is required for SQL layer to know that we support autorepair */
152
bool auto_repair() const { return 1; }
153
void position(const uchar *record);
140
void position(const unsigned char *record);
155
142
int delete_all_rows(void);
156
int create(const char *name, TABLE *form, HA_CREATE_INFO *create_info);
157
bool check_if_incompatible_data(HA_CREATE_INFO *info,
160
THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to,
161
enum thr_lock_type lock_type);
164
These functions used to get/update status of the handler.
145
These functions used to get/update status of the Cursor.
165
146
Needed to enable concurrent inserts.
167
148
void get_status();
168
149
void update_status();
170
151
/* The following methods were added just for TINA */
171
int encode_quote(uchar *buf);
172
int find_current_row(uchar *buf);
152
int encode_quote(unsigned char *buf);
153
int find_current_row(unsigned char *buf);
173
154
int chain_append();
157
#endif /* PLUGIN_CSV_HA_TINA_H */