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255 lines
10 KiB
C
255 lines
10 KiB
C
/************************************************************************
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02111-1301, USA
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Part of this code includes code from PHP's mysqlnd extension
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(written by Andrey Hristov, Georg Richter and Ulf Wendel), freely
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available from http://www.php.net/software
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*************************************************************************/
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#define MYSQL_NO_DATA 100
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#define MYSQL_DATA_TRUNCATED 101
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#define MYSQL_DEFAULT_PREFETCH_ROWS (unsigned long) 1
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/* Bind flags */
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#define MADB_BIND_DUMMY 1
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#define SET_CLIENT_STMT_ERROR(a, b, c, d) \
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{ \
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(a)->last_errno= (b);\
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strncpy((a)->sqlstate, (c), sizeof((a)->sqlstate));\
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strncpy((a)->last_error, (d) ? (d) : ER((b)), sizeof((a)->last_error));\
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}
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#define CLEAR_CLIENT_STMT_ERROR(a) \
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{ \
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(a)->last_errno= 0;\
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strcpy((a)->sqlstate, "00000");\
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(a)->last_error[0]= 0;\
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}
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#define MYSQL_PS_SKIP_RESULT_W_LEN -1
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#define MYSQL_PS_SKIP_RESULT_STR -2
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#define STMT_ID_LENGTH 4
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typedef struct st_mysql_stmt MYSQL_STMT;
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typedef MYSQL_RES* (*mysql_stmt_use_or_store_func)(MYSQL_STMT *);
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enum enum_stmt_attr_type
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{
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STMT_ATTR_UPDATE_MAX_LENGTH,
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STMT_ATTR_CURSOR_TYPE,
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STMT_ATTR_PREFETCH_ROWS
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};
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enum enum_cursor_type
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{
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CURSOR_TYPE_NO_CURSOR= 0,
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CURSOR_TYPE_READ_ONLY= 1,
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CURSOR_TYPE_FOR_UPDATE= 2,
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CURSOR_TYPE_SCROLLABLE= 4
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};
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typedef enum mysql_stmt_state
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{
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MYSQL_STMT_INITTED = 0,
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MYSQL_STMT_PREPARED,
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MYSQL_STMT_EXECUTED,
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// MYSQL_STMT_USE_RESULT,
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// MYSQL_STMT_STORE_RESULT,
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MYSQL_STMT_WAITING_USE_OR_STORE,
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MYSQL_STMT_USE_OR_STORE_CALLED,
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MYSQL_STMT_USER_FETCHING, /* fetch_row_buff or fetch_row_unbuf */
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MYSQL_STMT_FETCH_DONE
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} enum_mysqlnd_stmt_state;
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typedef struct st_mysql_bind
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{
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unsigned long *length; /* output length pointer */
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my_bool *is_null; /* Pointer to null indicator */
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void *buffer; /* buffer to get/put data */
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/* set this if you want to track data truncations happened during fetch */
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my_bool *error;
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unsigned char *row_ptr; /* for the current data position */
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void (*store_param_func)(NET *net, struct st_mysql_bind *param);
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void (*fetch_result)(struct st_mysql_bind *, MYSQL_FIELD *,
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unsigned char **row);
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void (*skip_result)(struct st_mysql_bind *, MYSQL_FIELD *,
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unsigned char **row);
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/* output buffer length, must be set when fetching str/binary */
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unsigned long buffer_length;
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unsigned long offset; /* offset position for char/binary fetch */
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unsigned long length_value; /* Used if length is 0 */
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unsigned int flags; /* special flags, e.g. for dummy bind */
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unsigned int pack_length; /* Internal length for packed data */
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enum enum_field_types buffer_type; /* buffer type */
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my_bool error_value; /* used if error is 0 */
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my_bool is_unsigned; /* set if integer type is unsigned */
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my_bool long_data_used; /* If used with mysql_send_long_data */
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my_bool is_null_value; /* Used if is_null is 0 */
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void *extension;
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} MYSQL_BIND;
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typedef struct st_mysqlnd_upsert_result
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{
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unsigned int warning_count;
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unsigned int server_status;
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my_ulonglong affected_rows;
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my_ulonglong last_insert_id;
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} mysql_upsert_status;
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typedef struct st_mysql_cmd_buffer
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{
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unsigned char *buffer;
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size_t length;
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} MYSQL_CMD_BUFFER;
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typedef struct st_mysql_error_info
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{
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unsigned int error_no;
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char error[MYSQL_ERRMSG_SIZE+1];
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char sqlstate[SQLSTATE_LENGTH + 1];
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} mysql_error_info;
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struct st_mysqlnd_stmt_methods
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{
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my_bool (*prepare)(const MYSQL_STMT * stmt, const char * const query, unsigned int query_len);
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my_bool (*execute)(const MYSQL_STMT * stmt);
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MYSQL_RES * (*use_result)(const MYSQL_STMT * stmt);
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MYSQL_RES * (*store_result)(const MYSQL_STMT * stmt);
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MYSQL_RES * (*get_result)(const MYSQL_STMT * stmt);
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my_bool (*free_result)(const MYSQL_STMT * stmt);
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my_bool (*seek_data)(const MYSQL_STMT * stmt, my_ulonglong row);
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my_bool (*reset)(const MYSQL_STMT * stmt);
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my_bool (*close)(const MYSQL_STMT * stmt); /* private */
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my_bool (*dtor)(const MYSQL_STMT * stmt); /* use this for mysqlnd_stmt_close */
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my_bool (*fetch)(const MYSQL_STMT * stmt, my_bool * const fetched_anything);
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my_bool (*bind_param)(const MYSQL_STMT * stmt, const MYSQL_BIND bind);
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my_bool (*refresh_bind_param)(const MYSQL_STMT * stmt);
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my_bool (*bind_result)(const MYSQL_STMT * stmt, const MYSQL_BIND *bind);
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my_bool (*send_long_data)(const MYSQL_STMT * stmt, unsigned int param_num,
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const char * const data, unsigned long length);
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MYSQL_RES *(*get_parameter_metadata)(const MYSQL_STMT * stmt);
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MYSQL_RES *(*get_result_metadata)(const MYSQL_STMT * stmt);
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my_ulonglong (*get_last_insert_id)(const MYSQL_STMT * stmt);
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my_ulonglong (*get_affected_rows)(const MYSQL_STMT * stmt);
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my_ulonglong (*get_num_rows)(const MYSQL_STMT * stmt);
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unsigned int (*get_param_count)(const MYSQL_STMT * stmt);
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unsigned int (*get_field_count)(const MYSQL_STMT * stmt);
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unsigned int (*get_warning_count)(const MYSQL_STMT * stmt);
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unsigned int (*get_error_no)(const MYSQL_STMT * stmt);
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const char * (*get_error_str)(const MYSQL_STMT * stmt);
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const char * (*get_sqlstate)(const MYSQL_STMT * stmt);
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my_bool (*get_attribute)(const MYSQL_STMT * stmt, enum enum_stmt_attr_type attr_type, const void * value);
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my_bool (*set_attribute)(const MYSQL_STMT * stmt, enum enum_stmt_attr_type attr_type, const void * value);
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};
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typedef int (*mysql_stmt_fetch_row_func)(MYSQL_STMT *stmt, unsigned char **row);
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struct st_mysql_stmt
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{
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MEM_ROOT mem_root;
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MYSQL *mysql;
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unsigned long stmt_id;
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unsigned long flags;/* cursor is set here */
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enum_mysqlnd_stmt_state state;
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MYSQL_FIELD *fields;
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unsigned int field_count;
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unsigned int param_count;
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unsigned char send_types_to_server;
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MYSQL_BIND *params;
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MYSQL_BIND *bind;
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MYSQL_DATA result; /* we don't use mysqlnd's result set logic */
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MYSQL_ROWS *result_cursor;
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my_bool bind_result_done;
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my_bool bind_param_done;
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mysql_upsert_status upsert_status;
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unsigned int last_errno;
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char last_error[MYSQL_ERRMSG_SIZE+1];
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char sqlstate[SQLSTATE_LENGTH + 1];
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my_bool update_max_length;
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unsigned long prefetch_rows;
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LIST list;
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my_bool cursor_exists;
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void *extension;
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mysql_stmt_fetch_row_func fetch_row_func;
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unsigned int execute_count;/* count how many times the stmt was executed */
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mysql_stmt_use_or_store_func default_rset_handler;
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struct st_mysqlnd_stmt_methods *m;
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};
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typedef void (*ps_field_fetch_func)(MYSQL_BIND *r_param, const MYSQL_FIELD * field, unsigned char **row);
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typedef struct st_mysql_perm_bind {
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ps_field_fetch_func func;
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/* should be signed int */
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int pack_len;
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unsigned long max_len;
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} MYSQL_PS_CONVERSION;
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extern MYSQL_PS_CONVERSION mysql_ps_fetch_functions[MYSQL_TYPE_GEOMETRY + 1];
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unsigned long net_safe_read(MYSQL *mysql);
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void mysql_init_ps_subsystem(void);
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unsigned long net_field_length(unsigned char **packet);
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int simple_command(MYSQL *mysql,enum enum_server_command command, const char *arg,
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size_t length, my_bool skipp_check, void *opt_arg);
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/*
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* function prototypes
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*/
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MYSQL_STMT * STDCALL mysql_stmt_init(MYSQL *mysql);
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int STDCALL mysql_stmt_prepare(MYSQL_STMT *stmt, const char *query, unsigned long length);
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int STDCALL mysql_stmt_execute(MYSQL_STMT *stmt);
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int STDCALL mysql_stmt_fetch(MYSQL_STMT *stmt);
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int STDCALL mysql_stmt_fetch_column(MYSQL_STMT *stmt, MYSQL_BIND *bind_arg, unsigned int column, unsigned long offset);
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int STDCALL mysql_stmt_store_result(MYSQL_STMT *stmt);
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unsigned long STDCALL mysql_stmt_param_count(MYSQL_STMT * stmt);
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my_bool STDCALL mysql_stmt_attr_set(MYSQL_STMT *stmt, enum enum_stmt_attr_type attr_type, const void *attr);
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my_bool STDCALL mysql_stmt_attr_get(MYSQL_STMT *stmt, enum enum_stmt_attr_type attr_type, void *attr);
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my_bool STDCALL mysql_stmt_bind_param(MYSQL_STMT * stmt, MYSQL_BIND * bnd);
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my_bool STDCALL mysql_stmt_bind_result(MYSQL_STMT * stmt, MYSQL_BIND * bnd);
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my_bool STDCALL mysql_stmt_close(MYSQL_STMT * stmt);
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my_bool STDCALL mysql_stmt_reset(MYSQL_STMT * stmt);
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my_bool STDCALL mysql_stmt_free_result(MYSQL_STMT *stmt);
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my_bool STDCALL mysql_stmt_send_long_data(MYSQL_STMT *stmt, unsigned int param_number, const char *data, unsigned long length);
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MYSQL_RES *STDCALL mysql_stmt_result_metadata(MYSQL_STMT *stmt);
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MYSQL_RES *STDCALL mysql_stmt_param_metadata(MYSQL_STMT *stmt);
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unsigned int STDCALL mysql_stmt_errno(MYSQL_STMT * stmt);
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const char *STDCALL mysql_stmt_error(MYSQL_STMT * stmt);
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const char *STDCALL mysql_stmt_sqlstate(MYSQL_STMT * stmt);
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MYSQL_ROW_OFFSET STDCALL mysql_stmt_row_seek(MYSQL_STMT *stmt, MYSQL_ROW_OFFSET offset);
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MYSQL_ROW_OFFSET STDCALL mysql_stmt_row_tell(MYSQL_STMT *stmt);
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void STDCALL mysql_stmt_data_seek(MYSQL_STMT *stmt, my_ulonglong offset);
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my_ulonglong STDCALL mysql_stmt_num_rows(MYSQL_STMT *stmt);
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my_ulonglong STDCALL mysql_stmt_affected_rows(MYSQL_STMT *stmt);
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my_ulonglong STDCALL mysql_stmt_insert_id(MYSQL_STMT *stmt);
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unsigned int STDCALL mysql_stmt_field_count(MYSQL_STMT *stmt);
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int STDCALL mysql_stmt_next_result(MYSQL_STMT *stmt);
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my_bool STDCALL mysql_stmt_more_results(MYSQL_STMT *stmt);
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