implementing prepared statement support in mod-mysql.c

This commit is contained in:
hyung-hwan 2020-01-04 15:55:18 +00:00
parent 235500ee8e
commit b610816366

View File

@ -55,10 +55,26 @@
#define __FREE_IMAP_NODE __free_res_node
#include "../lib/imap-imp.h"
#undef __IMAP_NODE_T_DATA
#undef __IMAP_LIST_T_DATA
#undef __IMAP_LIST_T
#undef __IMAP_NODE_T
#undef __MAKE_IMAP_NODE
#undef __FREE_IMAP_NODE
#define __IMAP_NODE_T_DATA MYSQL_STMT* stmt;
#define __IMAP_LIST_T_DATA /* int errnum; */
#define __IMAP_LIST_T stmt_list_t
#define __IMAP_NODE_T stmt_node_t
#define __MAKE_IMAP_NODE __new_stmt_node
#define __FREE_IMAP_NODE __free_stmt_node
#include "../lib/imap-imp.h"
struct rtx_data_t
{
sql_list_t sql_list;
res_list_t res_list;
stmt_list_t stmt_list;
};
typedef struct rtx_data_t rtx_data_t;
@ -86,7 +102,6 @@ static void free_sql_node (hawk_rtx_t* rtx, sql_list_t* sql_list, sql_node_t* sq
__free_sql_node (rtx, sql_list, sql_node);
}
static res_node_t* new_res_node (hawk_rtx_t* rtx, res_list_t* res_list, MYSQL_RES* res)
{
res_node_t* res_node;
@ -107,6 +122,24 @@ static void free_res_node (hawk_rtx_t* rtx, res_list_t* res_list, res_node_t* re
__free_res_node (rtx, res_list, res_node);
}
static stmt_node_t* new_stmt_node (hawk_rtx_t* rtx, stmt_list_t* stmt_list, MYSQL_STMT* stmt)
{
stmt_node_t* stmt_node;
stmt_node = __new_stmt_node(rtx, stmt_list);
if (!stmt_node) return HAWK_NULL;
stmt_node->stmt = stmt;
return stmt_node;
}
static void free_stmt_node (hawk_rtx_t* rtx, stmt_list_t* stmt_list, stmt_node_t* stmt_node)
{
mysql_stmt_close (stmt_node->stmt);
stmt_node->stmt = HAWK_NULL;
__free_stmt_node (rtx, stmt_list, stmt_node);
}
/* ------------------------------------------------------------------------ */
static HAWK_INLINE sql_list_t* rtx_to_sql_list (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
@ -141,6 +174,22 @@ static HAWK_INLINE res_node_t* get_res_list_node (res_list_t* res_list, hawk_int
return res_list->map.tab[id];
}
static HAWK_INLINE stmt_list_t* rtx_to_stmt_list (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{
hawk_rbt_pair_t* pair;
rtx_data_t* data;
pair = hawk_rbt_search((hawk_rbt_t*)fi->mod->ctx, &rtx, HAWK_SIZEOF(rtx));
HAWK_ASSERT (pair != HAWK_NULL);
data = (rtx_data_t*)HAWK_RBT_VPTR(pair);
return &data->stmt_list;
}
static HAWK_INLINE stmt_node_t* get_stmt_list_node (stmt_list_t* stmt_list, hawk_int_t id)
{
if (id < 0 || id >= stmt_list->map.high || !stmt_list->map.tab[id]) return HAWK_NULL;
return stmt_list->map.tab[id];
}
/* ------------------------------------------------------------------------ */
static void set_error_on_sql_list (hawk_rtx_t* rtx, sql_list_t* sql_list, const hawk_ooch_t* errfmt, ...)
@ -211,7 +260,58 @@ static res_node_t* get_res_list_node_with_arg (hawk_rtx_t* rtx, sql_list_t* sql_
return res_node;
}
static stmt_node_t* get_stmt_list_node_with_arg (hawk_rtx_t* rtx, sql_list_t* sql_list, stmt_list_t* stmt_list, hawk_val_t* arg)
{
hawk_int_t id;
stmt_node_t* stmt_node;
if (hawk_rtx_valtoint(rtx, arg, &id) <= -1)
{
set_error_on_sql_list (rtx, sql_list, HAWK_T("illegal statement id"));
return HAWK_NULL;
}
else if (!(stmt_node = get_stmt_list_node(stmt_list, id)))
{
set_error_on_sql_list (rtx, sql_list, HAWK_T("invalid statement id - %zd"), (hawk_oow_t)id);
return HAWK_NULL;
}
return stmt_node;
}
/* ------------------------------------------------------------------------ */
/*
mysql = mysql::open();
if (mysql::connect(mysql, "localhost", "username", "password", "database") <= -1)
{
print "connect error -", mysql::errmsg();
}
if (mysql::query(mysql, "select * from mytable") <= -1)
{
print "query error -", mysql::errmsg();
}
result = mysql::store_result(mysql);
if (result <= -1)
{
print "store result error - ", mysql::errmsg();
}
while (mysql::fetch_row(result, row) > 0)
{
ncols = length(row);
for (i = 0; i < ncols; i++) print row[i];
print "----";
}
mysql::free_result(result);
mysql::close(mysql);
*/
static int fnc_open (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{
sql_list_t* sql_list;
@ -613,10 +713,6 @@ done:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, ret));
return 0;
oops:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
return -1;
}
static int fnc_commit (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
@ -629,10 +725,6 @@ static int fnc_commit (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
sql_node = get_sql_list_node_with_arg(rtx, sql_list, hawk_rtx_getarg(rtx, 0));
if (sql_node)
{
int v;
v = hawk_rtx_valtobool(rtx, hawk_rtx_getarg(rtx, 1));
ENSURE_CONNECT_EVER_ATTEMPTED(rtx, sql_list, sql_node);
if (mysql_commit(sql_node->mysql) != 0)
@ -648,10 +740,6 @@ done:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, ret));
return 0;
oops:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
return -1;
}
static int fnc_rollback (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
@ -664,10 +752,6 @@ static int fnc_rollback (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
sql_node = get_sql_list_node_with_arg(rtx, sql_list, hawk_rtx_getarg(rtx, 0));
if (sql_node)
{
int v;
v = hawk_rtx_valtobool(rtx, hawk_rtx_getarg(rtx, 1));
ENSURE_CONNECT_EVER_ATTEMPTED(rtx, sql_list, sql_node);
if (mysql_rollback(sql_node->mysql) != 0)
@ -683,10 +767,6 @@ done:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, ret));
return 0;
oops:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
return -1;
}
static int fnc_affected_rows (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
@ -773,7 +853,6 @@ static int fnc_escape_string (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
goto oops;
}
if (hawk_rtx_setrefval(rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 2), retv) <= -1)
{
hawk_rtx_refupval (rtx, retv);
@ -786,7 +865,6 @@ static int fnc_escape_string (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
}
done:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
if (ebuf) hawk_rtx_freemem (rtx, ebuf);
if (qstr) hawk_rtx_freevalbcstr (rtx, a1, qstr);
@ -794,6 +872,7 @@ done:
return 0;
oops:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
if (ebuf) hawk_rtx_freemem (rtx, ebuf);
if (qstr) hawk_rtx_freevalbcstr (rtx, a1, qstr);
return -1;
@ -987,6 +1066,154 @@ oops:
return -1;
}
/* -------------------------------------------------------------------------- */
static int fnc_stmt_init (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{
sql_list_t* sql_list;
sql_node_t* sql_node;
int ret = -1;
int take_rtx_err = 0;
sql_list = rtx_to_sql_list(rtx, fi);
sql_node = get_sql_list_node_with_arg(rtx, sql_list, hawk_rtx_getarg(rtx, 0));
if (sql_list)
{
stmt_list_t* stmt_list;
stmt_node_t* stmt_node;
MYSQL_STMT* stmt;
stmt_list = rtx_to_stmt_list(rtx, fi);
ENSURE_CONNECT_EVER_ATTEMPTED(rtx, sql_list, sql_node);
stmt = mysql_stmt_init(sql_node->mysql);
if (!stmt)
{
set_error_on_sql_list (rtx, sql_list, HAWK_T("%hs"), mysql_error(sql_node->mysql));
goto done;
}
stmt_node = new_stmt_node(rtx, stmt_list, stmt);
if (!stmt_node)
{
mysql_stmt_close (stmt);
take_rtx_err = 1;
goto done;
}
ret = stmt_node->id;
}
done:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, ret));
return 0;
}
static int fnc_stmt_close (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{
sql_list_t* sql_list;
stmt_list_t* stmt_list;
stmt_node_t* stmt_node;
int ret = -1;
sql_list = rtx_to_sql_list(rtx, fi);
stmt_list = rtx_to_stmt_list(rtx, fi);
stmt_node = get_stmt_list_node_with_arg(rtx, sql_list, stmt_list, hawk_rtx_getarg(rtx, 0));
if (stmt_node)
{
free_stmt_node (rtx, stmt_list, stmt_node);
ret = 0;
}
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, ret));
return 0;
}
static int fnc_stmt_prepare (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{
sql_list_t* sql_list;
sql_node_t* sql_node;
stmt_list_t* stmt_list;
stmt_node_t* stmt_node;
int ret = -1;
int take_rtx_err = 0;
hawk_val_t* a1;
hawk_bch_t* qstr = HAWK_NULL;
sql_list = rtx_to_sql_list(rtx, fi);
stmt_list = rtx_to_stmt_list(rtx, fi);
sql_node = get_sql_list_node_with_arg(rtx, sql_list, hawk_rtx_getarg(rtx, 0));
stmt_node = get_stmt_list_node_with_arg(rtx, sql_list, stmt_list, hawk_rtx_getarg(rtx, 0));
if (stmt_node)
{
hawk_oow_t qlen;
a1 = hawk_rtx_getarg(rtx, 1);
qstr = hawk_rtx_getvalbcstr(rtx, a1, &qlen);
if (!qstr) { take_rtx_err = 1; goto oops; }
ENSURE_CONNECT_EVER_ATTEMPTED(rtx, sql_list, sql_node);
if (mysql_stmt_prepare(stmt_node->stmt, qstr, qlen) != 0)
{
set_error_on_sql_list (rtx, sql_list, HAWK_T("%hs"), mysql_stmt_error(stmt_node->stmt));
goto done;
}
ret = 0;
}
done:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
if (qstr) hawk_rtx_freevalbcstr (rtx, a1, qstr);
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, ret));
return 0;
oops:
if (take_rtx_err) set_error_on_sql_list (rtx, sql_list, HAWK_NULL);
if (qstr) hawk_rtx_freevalbcstr (rtx, a1, qstr);
return -1;
}
static int fnc_stmt_bind_param (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{
/* TODO: */
return -1;
}
static int fnc_stmt_execute (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{
sql_list_t* sql_list;
sql_node_t* sql_node;
stmt_list_t* stmt_list;
stmt_node_t* stmt_node;
int ret = -1;
sql_list = rtx_to_sql_list(rtx, fi);
stmt_list = rtx_to_stmt_list(rtx, fi);
sql_node = get_sql_list_node_with_arg(rtx, sql_list, hawk_rtx_getarg(rtx, 0));
stmt_node = get_stmt_list_node_with_arg(rtx, sql_list, stmt_list, hawk_rtx_getarg(rtx, 0));
if (stmt_node)
{
ENSURE_CONNECT_EVER_ATTEMPTED(rtx, sql_list, sql_node);
if (mysql_stmt_execute(stmt_node->stmt) != 0)
{
set_error_on_sql_list (rtx, sql_list, HAWK_T("%hs"), mysql_stmt_error(stmt_node->stmt));
goto done;
}
ret = 0;
}
done:
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, ret));
return 0;
}
typedef struct fnctab_t fnctab_t;
struct fnctab_t
{
@ -1007,23 +1234,30 @@ struct inttab_t
static fnctab_t fnctab[] =
{
/* keep this table sorted for binary search in query(). */
{ HAWK_T("affected_rows"), { { 2, 2, HAWK_T("vr") }, fnc_affected_rows, 0 } },
{ HAWK_T("autocommit"), { { 2, 2, HAWK_NULL }, fnc_autocommit, 0 } },
{ HAWK_T("close"), { { 1, 1, HAWK_NULL }, fnc_close, 0 } },
{ HAWK_T("commit"), { { 1, 1, HAWK_NULL }, fnc_commit, 0 } },
{ HAWK_T("connect"), { { 4, 7, HAWK_NULL }, fnc_connect, 0 } },
{ HAWK_T("errmsg"), { { 0, 0, HAWK_NULL }, fnc_errmsg, 0 } },
{ HAWK_T("escape_string"), { { 3, 3, HAWK_T("vvr") }, fnc_escape_string, 0 } },
{ HAWK_T("fetch_row"), { { 2, 2, HAWK_T("vr") }, fnc_fetch_row, 0 } },
{ HAWK_T("free_result"), { { 1, 1, HAWK_NULL }, fnc_free_result, 0 } },
/*{ HAWK_T("get_option"), { { 3, 3, HAWK_T("vr") }, fnc_get_option, 0 } },*/
{ HAWK_T("open"), { { 0, 0, HAWK_NULL }, fnc_open, 0 } },
{ HAWK_T("ping"), { { 1, 1, HAWK_NULL }, fnc_ping, 0 } },
{ HAWK_T("query"), { { 2, 2, HAWK_NULL }, fnc_query, 0 } },
{ HAWK_T("rollback"), { { 1, 1, HAWK_NULL }, fnc_rollback, 0 } },
{ HAWK_T("select_db"), { { 2, 2, HAWK_NULL }, fnc_select_db, 0 } },
{ HAWK_T("set_option"), { { 3, 3, HAWK_NULL }, fnc_set_option, 0 } },
{ HAWK_T("store_result"), { { 1, 1, HAWK_NULL }, fnc_store_result, 0 } }
{ HAWK_T("affected_rows"), { { 2, 2, HAWK_T("vr") }, fnc_affected_rows, 0 } },
{ HAWK_T("autocommit"), { { 2, 2, HAWK_NULL }, fnc_autocommit, 0 } },
{ HAWK_T("close"), { { 1, 1, HAWK_NULL }, fnc_close, 0 } },
{ HAWK_T("commit"), { { 1, 1, HAWK_NULL }, fnc_commit, 0 } },
{ HAWK_T("connect"), { { 4, 7, HAWK_NULL }, fnc_connect, 0 } },
{ HAWK_T("errmsg"), { { 0, 0, HAWK_NULL }, fnc_errmsg, 0 } },
{ HAWK_T("escape_string"), { { 3, 3, HAWK_T("vvr") }, fnc_escape_string, 0 } },
{ HAWK_T("fetch_row"), { { 2, 2, HAWK_T("vr") }, fnc_fetch_row, 0 } },
{ HAWK_T("free_result"), { { 1, 1, HAWK_NULL }, fnc_free_result, 0 } },
/*{ HAWK_T("get_option"), { { 3, 3, HAWK_T("vr") }, fnc_get_option, 0 } },*/
{ HAWK_T("open"), { { 0, 0, HAWK_NULL }, fnc_open, 0 } },
{ HAWK_T("ping"), { { 1, 1, HAWK_NULL }, fnc_ping, 0 } },
{ HAWK_T("query"), { { 2, 2, HAWK_NULL }, fnc_query, 0 } },
{ HAWK_T("rollback"), { { 1, 1, HAWK_NULL }, fnc_rollback, 0 } },
{ HAWK_T("select_db"), { { 2, 2, HAWK_NULL }, fnc_select_db, 0 } },
{ HAWK_T("set_option"), { { 3, 3, HAWK_NULL }, fnc_set_option, 0 } },
{ HAWK_T("stmt_bind_param"), { { 1, 1, HAWK_NULL }, fnc_stmt_bind_param, 0 } },
{ HAWK_T("stmt_close"), { { 1, 1, HAWK_NULL }, fnc_stmt_close, 0 } },
{ HAWK_T("stmt_execute"), { { 1, 1, HAWK_NULL }, fnc_stmt_execute, 0 } },
{ HAWK_T("stmt_init"), { { 1, 1, HAWK_NULL }, fnc_stmt_init, 0 } },
{ HAWK_T("stmt_prepare"), { { 2, 2, HAWK_NULL }, fnc_stmt_prepare, 0 } },
{ HAWK_T("store_result"), { { 1, 1, HAWK_NULL }, fnc_store_result, 0 } }
};
static inttab_t inttab[] =