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Client-Server Protocol 4.1 changes - Client side:

Browse Source 
- Support of prepared execution
  - Support of Original Table and Column names
  - Support of direct transactional API
  - And lot of misc handling

  (Note that, the pull will not work, unless you have the Server side changes also which will be followed by this commit)
  


BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted
This commit is contained in:
unknown
2002-06-12 13:47:32 -07:00
parent e413fd4c38
commit 049a8386f3
6 changed files with 1464 additions and 64 deletions
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114
include/mysql.h
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@ -68,16 +68,17 @@ extern char *mysql_unix_port;
#define INTERNAL_NUM_FIELD(f) (((f)->type <= FIELD_TYPE_INT24 && ((f)->type != FIELD_TYPE_TIMESTAMP || (f)->length == 14 || (f)->length == 8)) || (f)->type == FIELD_TYPE_YEAR)
typedef struct st_mysql_field {
char *name; /* Name of column */
char *table; /* Table of column if column was a field */
char *org_table; /* Org table name if table was an alias */
char *db; /* Database for table */
char *def; /* Default value (set by mysql_list_fields) */
unsigned long length; /* Width of column */
unsigned long max_length; /* Max width of selected set */
unsigned int flags; /* Div flags */
unsigned int decimals; /* Number of decimals in field */
enum enum_field_types type; /* Type of field. Se mysql_com.h for types */
char *name; /* Name of column */
char *org_name; /* Original column name, if column was an alias */
char *table; /* Table of column if column was a field */
char *org_table; /* Org table name, if table was an alias */
char *db; /* Database for table */
char *def; /* Default value (set by mysql_list_fields) */
unsigned long length; /* Width of column */
unsigned long max_length; /* Max width of selected set */
unsigned int flags; /* Div flags */
unsigned int decimals; /* Number of decimals in field */
enum enum_field_types type; /* Type of field. Se mysql_com.h for types */
} MYSQL_FIELD;
typedef char **MYSQL_ROW; /* return data as array of strings */
@ -101,6 +102,23 @@ typedef struct st_mysql_rows {
typedef MYSQL_ROWS *MYSQL_ROW_OFFSET; /* offset to current row */
#include <my_alloc.h>
#ifndef ST_USED_MEM_DEFINED
#define ST_USED_MEM_DEFINED
typedef struct st_used_mem { /* struct for once_alloc */
struct st_used_mem *next; /* Next block in use */
unsigned int left; /* memory left in block */
unsigned int size; /* size of block */
} USED_MEM;
typedef struct st_mem_root {
USED_MEM *free;
USED_MEM *used;
USED_MEM *pre_alloc;
unsigned int min_malloc;
unsigned int block_size;
void (*error_handler)(void);
} MEM_ROOT;
#endif
typedef struct st_mysql_data {
my_ulonglong rows;
@ -391,6 +409,82 @@ int STDCALL mysql_manager_command(MYSQL_MANAGER* con,
int STDCALL mysql_manager_fetch_line(MYSQL_MANAGER* con,
char* res_buf,
int res_buf_size);
/*
The following definations are added for the enhanced
client-server protocol
*/
/* statement state */
enum MY_STMT_STATE { MY_ST_UNKNOWN, MY_ST_PREPARE, MY_ST_EXECUTE };
/* bind structure */
typedef struct st_mysql_bind {
enum enum_field_types buffer_type; /* buffer type */
enum enum_field_types field_type; /* field type */
gptr buffer; /* buffer */
long *length; /* output length pointer */
ulong buffer_length; /* buffer length */
ulong bind_length; /* internal use */
my_bool is_null; /* NULL indicator */
my_bool is_long_data; /* long data indicator */
my_bool long_ended; /* internal use */
} MYSQL_BIND;
/* statement handler */
typedef struct st_mysql_stmt {
MYSQL *mysql; /* connection handle */
MYSQL_BIND *params; /* input parameters */
MYSQL_RES *result; /* resultset */
MYSQL_BIND *bind; /* row binding */
MYSQL_FIELD *fields; /* prepare meta info */
MEM_ROOT mem_root; /* root allocations */
ulong param_count; /* parameters count */
ulong field_count; /* fields count */
ulong long_length; /* long buffer alloced length */
uint err_no; /* error code */
char error[MYSQL_ERRMSG_SIZE]; /* error message */
char *query; /* query buffer */
char *long_data; /* long buffer */
enum MY_STMT_STATE state; /* statement state */
my_bool long_alloced; /* flag to indicate long alloced */
my_bool types_supplied; /* to indicate types supply */
} MYSQL_STMT;
MYSQL_STMT * STDCALL mysql_prepare(MYSQL * mysql, const char *query);
int STDCALL mysql_execute(MYSQL_STMT * stmt);
ulong STDCALL mysql_param_count(MYSQL_STMT * stmt);
int STDCALL mysql_bind_param(MYSQL_STMT * stmt, MYSQL_BIND * bind);
int STDCALL mysql_bind_result(MYSQL_STMT * stmt, MYSQL_BIND * bind);
int STDCALL mysql_stmt_close(MYSQL_STMT * stmt);
uint STDCALL mysql_stmt_errno(MYSQL_STMT * stmt);
const char *STDCALL mysql_stmt_error(MYSQL_STMT * stmt);
int STDCALL mysql_commit(MYSQL * mysql);
int STDCALL mysql_rollback(MYSQL * mysql);
int STDCALL mysql_autocommit(MYSQL * mysql, my_bool auto_mode);
int STDCALL mysql_fetch(MYSQL_STMT *stmt);
my_bool STDCALL mysql_send_long_data(MYSQL_STMT *stmt,
uint param_number,gptr data, ulong length);
int STDCALL mysql_multi_query(MYSQL *mysql,const char *query,ulong length);
MYSQL_RES *STDCALL mysql_next_result(MYSQL *mysql);
MYSQL_RES * STDCALL mysql_prepare_result(MYSQL_STMT *stmt);
/* new status messages */
#define MYSQL_SUCCESS 0
#define MYSQL_WARNING 1
#define MYSQL_ERROR -1
#define MYSQL_NO_DATA 100
#define MYSQL_NEED_DATA 99
#define MYSQL_LONG_DATA_END 0xFF
#define mysql_reload(mysql) mysql_refresh((mysql),REFRESH_GRANT)
#ifdef USE_OLD_FUNCTIONS