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/*
* SPL - The SPL Programming Language
* Copyright (C) 2004, 2005 Clifford Wolf <clifford@clifford.at>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* mod_sql.h: Comman data structures for all SQL modules
*/
#ifndef MOD_SQL_H
#define MOD_SQL_H
#include "spl.h"
typedef struct spl_node *sql_query_callback(struct spl_task *task, void *backend_data, const char *query);
typedef void sql_close_callback(struct spl_vm *vm, void *backend_data);
struct sql_hnode_data {
void *backend_data;
sql_query_callback *query_callback;
sql_close_callback *close_callback;
};
typedef void sql_open_callback(struct spl_task *task, struct spl_node *node, const char *data);
struct sql_backend {
struct sql_backend *next;
sql_open_callback *open_callback;
const char *name;
};
static inline void sql_register_backend(struct spl_vm *vm, const char *name, sql_open_callback *open_callback)
{
struct sql_backend *b = malloc(sizeof(struct sql_backend));
b->name = name;
b->open_callback = open_callback;
b->next = vm->sql_backends;
vm->sql_backends = b;
}
static inline void sql_unregister_backend(struct spl_vm *vm, const char *name)
{
struct sql_backend **l = &vm->sql_backends;
struct sql_backend *b = vm->sql_backends;
while (b) {
if (!strcmp(b->name, name)) {
*l = b->next;
free(b);
return;
}
l = &b->next;
b = b->next;
}
}
#endif
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