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00019 #pragma once
00020
00021 #include <drizzled/cursor.h>
00022 #include <drizzled/atomics.h>
00023
00024 class HailDBTableShare
00025 {
00026 public:
00027 HailDBTableShare(const char* name, bool hidden_primary_key);
00028
00029 drizzled::THR_LOCK lock;
00030 int use_count;
00031 std::string table_name;
00032
00033 drizzled::atomic<uint64_t> auto_increment_value;
00034 drizzled::atomic<uint64_t> hidden_pkey_auto_increment_value;
00035 bool has_hidden_primary_key;
00036 };
00037
00038 class HailDBCursor: public drizzled::Cursor
00039 {
00040 public:
00041 HailDBCursor(drizzled::plugin::StorageEngine &engine, drizzled::Table &table_arg);
00042 ~HailDBCursor()
00043 {}
00044
00045
00046
00047
00048
00049 const char *index_type(uint32_t key_number);
00050 uint32_t index_flags(uint32_t inx) const;
00051 int open(const char *name, int mode, uint32_t test_if_locked);
00052 int close(void);
00053 int external_lock(drizzled::Session* session, int lock_type);
00054 int doInsertRecord(unsigned char * buf);
00055 int doStartTableScan(bool scan);
00056 int rnd_next(unsigned char *buf);
00057 int doEndTableScan();
00058 int rnd_pos(unsigned char * buf, unsigned char *pos);
00059
00060 int doStartIndexScan(uint32_t, bool);
00061 int index_read(unsigned char *buf, const unsigned char *key_ptr,
00062 uint32_t key_len, drizzled::ha_rkey_function find_flag);
00063
00064 int haildb_index_read(unsigned char *buf,
00065 const unsigned char *key_ptr,
00066 uint32_t key_len,
00067 drizzled::ha_rkey_function find_flag,
00068 bool allocate_blobs);
00069
00070 uint32_t calculate_key_len(uint32_t key_position,
00071 drizzled::key_part_map keypart_map_arg);
00072 int haildb_index_read_map(unsigned char * buf,
00073 const unsigned char *key,
00074 drizzled::key_part_map keypart_map,
00075 drizzled::ha_rkey_function find_flag,
00076 bool allocate_blobs);
00077 int index_read_idx_map(unsigned char * buf,
00078 uint32_t index,
00079 const unsigned char * key,
00080 drizzled::key_part_map keypart_map,
00081 drizzled::ha_rkey_function find_flag);
00082
00083 int index_next(unsigned char * buf);
00084 int doEndIndexScan();
00085 int index_prev(unsigned char * buf);
00086 int index_first(unsigned char * buf);
00087 int index_last(unsigned char * buf);
00088 void position(const unsigned char *record);
00089 int info(uint32_t flag);
00090 double scan_time();
00091 int doDeleteRecord(const unsigned char *);
00092 int delete_all_rows(void);
00093 int doUpdateRecord(const unsigned char * old_data, unsigned char * new_data);
00094 int extra(drizzled::ha_extra_function operation);
00095
00096 HailDBTableShare *get_share(const char *table_name,
00097 bool has_hidden_primary_key,
00098 int *rc);
00099 int free_share();
00100
00101 HailDBTableShare *share;
00102 drizzled::THR_LOCK_DATA lock;
00103 drizzled::THR_LOCK_DATA **store_lock(drizzled::Session *,
00104 drizzled::THR_LOCK_DATA **to,
00105 drizzled::thr_lock_type);
00106
00107 uint64_t getInitialAutoIncrementValue();
00108 uint64_t getHiddenPrimaryKeyInitialAutoIncrementValue();
00109
00110 void get_auto_increment(uint64_t ,
00111 uint64_t ,
00112 uint64_t ,
00113 uint64_t *first_value,
00114 uint64_t *nb_reserved_values);
00115
00116 int reset();
00117 int analyze(drizzled::Session* session);
00118
00119 private:
00120 ib_id_t table_id;
00121 ib_crsr_t cursor;
00122 ib_tpl_t tuple;
00123 bool advance_cursor;
00124 ib_lck_mode_t ib_lock_mode;
00125 bool cursor_is_sec_index;
00126
00127 bool write_can_replace;
00128 uint64_t hidden_autoinc_pkey_position;
00129 drizzled::memory::Root *blobroot;
00130
00131 bool in_table_scan;
00132 };
00133
00134 int get_haildb_system_table_message(const char* table_name, drizzled::message::Table *table_message);
00135