14
14
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
17
#ifndef PLUGIN_MYISAM_HA_MYISAM_H
18
#define PLUGIN_MYISAM_HA_MYISAM_H
20
#include <drizzled/cursor.h>
21
#include <drizzled/thr_lock.h>
23
/* class for the the myisam Cursor */
25
#include <plugin/myisam/myisam.h>
27
class ha_myisam: public drizzled::Cursor
17
#ifndef STORAGE_MYISAM_HA_MYISAM_H
18
#define STORAGE_MYISAM_HA_MYISAM_H
20
#include <drizzled/handler.h>
21
#include <mysys/thr_lock.h>
23
/* class for the the myisam handler */
25
#include <storage/myisam/myisam.h>
27
#define HA_RECOVER_NONE 0 /* No automatic recover */
28
#define HA_RECOVER_DEFAULT 1 /* Automatic recover active */
29
#define HA_RECOVER_BACKUP 2 /* Make a backupfile on recover */
30
#define HA_RECOVER_FORCE 4 /* Recover even if we loose rows */
31
#define HA_RECOVER_QUICK 8 /* Don't check rows in data file */
33
extern TYPELIB myisam_recover_typelib;
34
extern ulong myisam_recover_options;
40
bool index_cond_func_myisam(void *arg);
46
class ha_myisam: public handler
49
uint64_t int_table_flags;
30
50
char *data_file_name, *index_file_name;
31
51
bool can_enable_indexes;
33
int repair(drizzled::Session *session, MI_CHECK ¶m, bool optimize);
52
int repair(Session *session, MI_CHECK ¶m, bool optimize);
36
ha_myisam(drizzled::plugin::StorageEngine &engine,
37
drizzled::TableShare &table_arg);
55
ha_myisam(handlerton *hton, TABLE_SHARE *table_arg);
39
Cursor *clone(drizzled::memory::Root *mem_root);
57
handler *clone(MEM_ROOT *mem_root);
58
const char *table_type() const { return "MyISAM"; }
40
59
const char *index_type(uint32_t key_number);
60
const char **bas_ext() const;
61
uint64_t table_flags() const { return int_table_flags; }
41
62
int index_init(uint32_t idx, bool sorted);
64
uint32_t index_flags(uint32_t inx, uint32_t part, bool all_parts) const;
65
uint32_t max_supported_keys() const { return MI_MAX_KEY; }
66
uint32_t max_supported_key_length() const { return MI_MAX_KEY_LENGTH; }
67
uint32_t max_supported_key_part_length() const { return MI_MAX_KEY_LENGTH; }
43
68
uint32_t checksum() const;
45
70
int open(const char *name, int mode, uint32_t test_if_locked);
47
72
int write_row(unsigned char * buf);
48
73
int update_row(const unsigned char * old_data, unsigned char * new_data);
49
74
int delete_row(const unsigned char * buf);
50
int index_read_map(unsigned char *buf, const unsigned char *key, drizzled::key_part_map keypart_map,
51
enum drizzled::ha_rkey_function find_flag);
75
int index_read_map(unsigned char *buf, const unsigned char *key, key_part_map keypart_map,
76
enum ha_rkey_function find_flag);
52
77
int index_read_idx_map(unsigned char *buf, uint32_t index, const unsigned char *key,
53
drizzled::key_part_map keypart_map,
54
enum drizzled::ha_rkey_function find_flag);
55
int index_read_last_map(unsigned char *buf, const unsigned char *key, drizzled::key_part_map keypart_map);
78
key_part_map keypart_map,
79
enum ha_rkey_function find_flag);
80
int index_read_last_map(unsigned char *buf, const unsigned char *key, key_part_map keypart_map);
56
81
int index_next(unsigned char * buf);
57
82
int index_prev(unsigned char * buf);
58
83
int index_first(unsigned char * buf);
64
89
int restart_rnd_next(unsigned char *buf, unsigned char *pos);
65
90
void position(const unsigned char *record);
67
int extra(enum drizzled::ha_extra_function operation);
68
int extra_opt(enum drizzled::ha_extra_function operation, uint32_t cache_size);
92
int extra(enum ha_extra_function operation);
93
int extra_opt(enum ha_extra_function operation, uint32_t cache_size);
70
int external_lock(drizzled::Session *session, int lock_type);
95
int external_lock(Session *session, int lock_type);
71
96
int delete_all_rows(void);
72
97
int disable_indexes(uint32_t mode);
73
98
int enable_indexes(uint32_t mode);
74
99
int indexes_are_disabled(void);
75
void start_bulk_insert(drizzled::ha_rows rows);
100
void start_bulk_insert(ha_rows rows);
76
101
int end_bulk_insert();
77
drizzled::ha_rows records_in_range(uint32_t inx, drizzled::key_range *min_key, drizzled::key_range *max_key);
102
ha_rows records_in_range(uint32_t inx, key_range *min_key, key_range *max_key);
103
void update_create_info(HA_CREATE_INFO *create_info);
104
int create(const char *name, Table *form, HA_CREATE_INFO *create_info);
105
THR_LOCK_DATA **store_lock(Session *session, THR_LOCK_DATA **to,
106
enum thr_lock_type lock_type);
78
107
virtual void get_auto_increment(uint64_t offset, uint64_t increment,
79
108
uint64_t nb_desired_values,
80
109
uint64_t *first_value,
81
110
uint64_t *nb_reserved_values);
111
int rename_table(const char * from, const char * to);
112
int delete_table(const char *name);
113
int check(Session* session, HA_CHECK_OPT* check_opt);
114
int analyze(Session* session,HA_CHECK_OPT* check_opt);
115
int repair(Session* session, HA_CHECK_OPT* check_opt);
116
bool check_and_repair(Session *session);
117
bool is_crashed() const;
118
bool auto_repair() const { return myisam_recover_options != 0; }
119
int optimize(Session* session, HA_CHECK_OPT* check_opt);
120
int assign_to_keycache(Session* session, HA_CHECK_OPT* check_opt);
121
bool check_if_incompatible_data(HA_CREATE_INFO *info, uint32_t table_changes);
122
#ifdef HAVE_QUERY_CACHE
123
bool register_query_cache_table(Session *session, char *table_key,
127
uint64_t *engine_data);
82
129
MI_INFO *file_ptr(void)
86
int read_range_first(const drizzled::key_range *start_key, const drizzled::key_range *end_key,
133
int read_range_first(const key_range *start_key, const key_range *end_key,
87
134
bool eq_range_arg, bool sorted);
88
135
int read_range_next();
89
int reset_auto_increment(uint64_t value);
91
virtual bool isOrdered(void)
138
* Multi Range Read interface
140
int multi_range_read_init(RANGE_SEQ_IF *seq, void *seq_init_param,
141
uint32_t n_ranges, uint32_t mode, HANDLER_BUFFER *buf);
142
int multi_range_read_next(char **range_info);
143
ha_rows multi_range_read_info_const(uint32_t keyno, RANGE_SEQ_IF *seq,
144
void *seq_init_param,
145
uint32_t n_ranges, uint32_t *bufsz,
146
uint32_t *flags, COST_VECT *cost);
147
int multi_range_read_info(uint32_t keyno, uint32_t n_ranges, uint32_t keys,
148
uint32_t *bufsz, uint32_t *flags, COST_VECT *cost);
150
/* Index condition pushdown implementation */
151
Item *idx_cond_push(uint32_t keyno, Item* idx_cond);
152
bool check_if_supported_virtual_columns(void) { return true; }
97
drizzled::key_map keys_with_parts;
155
key_map keys_with_parts;
156
friend bool index_cond_func_myisam(void *arg);
100
#endif /* PLUGIN_MYISAM_HA_MYISAM_H */
159
#endif /* STORAGE_MYISAM_HA_MYISAM_H */