database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-27 18:02:13 +03:00
Code Activity

SCRUM

Browse Source 
prepared statements in embedded library
This commit is contained in:
hf@deer.(none)
2003-09-17 15:18:18 +05:00
parent 744fc5a5be
commit 7a763f3fe3
7 changed files with 97 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
libmysql/libmysql.c
View File

@ -1494,8 +1494,8 @@ static void set_stmt_error(MYSQL_STMT * stmt, int errcode,
Copy error message to statement handler
*/
static void set_stmt_errmsg(MYSQL_STMT * stmt, const char *err, int errcode,
const char *sqlstate)
void set_stmt_errmsg(MYSQL_STMT * stmt, const char *err, int errcode,
const char *sqlstate)
{
DBUG_ENTER("set_stmt_error_msg");
DBUG_PRINT("enter", ("error: %d/%s '%s'", errcode, sqlstate, err));
@ -1601,6 +1601,16 @@ my_bool STDCALL cli_read_prepare_result(MYSQL *mysql, MYSQL_STMT *stmt)
}
stmt->field_count= (uint) field_count;
stmt->param_count= (ulong) param_count;
if (!(stmt->params= (MYSQL_BIND *) alloc_root(&stmt->mem_root,
sizeof(MYSQL_BIND)*
(stmt->param_count +
stmt->field_count))))
{
set_stmt_error(stmt, CR_OUT_OF_MEMORY, unknown_sqlstate);
DBUG_RETURN(1);
}
stmt->bind= stmt->params + stmt->param_count;
DBUG_RETURN(0);
}
@ -1649,12 +1659,6 @@ mysql_prepare(MYSQL *mysql, const char *query, ulong length)
stmt_close(stmt, 1);
DBUG_RETURN(0);
}
if (!(stmt->params= (MYSQL_BIND *) alloc_root(&stmt->mem_root,
sizeof(MYSQL_BIND)*
(stmt->param_count +
stmt->field_count))))
set_stmt_error(stmt, CR_OUT_OF_MEMORY, unknown_sqlstate);
stmt->bind= stmt->params + stmt->param_count;
stmt->state= MY_ST_PREPARE;
stmt->mysql= mysql;
@ -1975,36 +1979,21 @@ static my_bool execute(MYSQL_STMT * stmt, char *packet, ulong length)
mysql->last_used_con= mysql;
int4store(buff, stmt->stmt_id); /* Send stmt id to server */
if ((*mysql->methods->advanced_command)(mysql, COM_EXECUTE, buff,
MYSQL_STMT_HEADER, packet,
length, 1) ||
if (cli_advanced_command(mysql, COM_EXECUTE, buff,
MYSQL_STMT_HEADER, packet,
length, 1) ||
mysql_read_query_result(mysql))
{
set_stmt_errmsg(stmt, net->last_error, net->last_errno, net->sqlstate);
DBUG_RETURN(1);
}
stmt->state= MY_ST_EXECUTE;
mysql_free_result(stmt->result);
stmt->result= (MYSQL_RES *)0;
stmt->result_buffered= 0;
stmt->current_row= 0;
DBUG_RETURN(0);
}
/*
Execute the prepare query
*/
int STDCALL mysql_execute(MYSQL_STMT *stmt)
int STDCALL cli_stmt_execute(MYSQL_STMT *stmt)
{
DBUG_ENTER("mysql_execute");
DBUG_ENTER("cli_stmt_execute");
if (stmt->state == MY_ST_UNKNOWN)
{
set_stmt_error(stmt, CR_NO_PREPARE_STMT, unknown_sqlstate);
DBUG_RETURN(1);
}
if (stmt->param_count)
{
NET *net= &stmt->mysql->net;
@ -2065,6 +2054,30 @@ int STDCALL mysql_execute(MYSQL_STMT *stmt)
DBUG_RETURN((int) execute(stmt,0,0));
}
/*
Execute the prepare query
*/
int STDCALL mysql_execute(MYSQL_STMT *stmt)
{
DBUG_ENTER("mysql_execute");
if (stmt->state == MY_ST_UNKNOWN)
{
set_stmt_error(stmt, CR_NO_PREPARE_STMT, unknown_sqlstate);
DBUG_RETURN(1);
}
if ((*stmt->mysql->methods->stmt_execute)(stmt))
DBUG_RETURN(1);
stmt->state= MY_ST_EXECUTE;
mysql_free_result(stmt->result);
stmt->result= (MYSQL_RES *)0;
stmt->result_buffered= 0;
stmt->current_row= 0;
DBUG_RETURN(0);
}
/*
Return total parameters count in the statement