38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
|
/*
|
||
|
* Copyright 2008 Google Inc.
|
||
|
*
|
||
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
* you may not use this file except in compliance with the License.
|
||
|
* You may obtain a copy of the License at
|
||
|
*
|
||
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
*
|
||
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
* See the License for the specific language governing permissions and
|
||
|
* limitations under the License.
|
||
|
*/
|
||
|
typedef struct DatabaseConnection DatabaseConnection;
|
||
|
|
||
|
/* Function that takes an SQL query string and sets results to an array of
|
||
|
* pointers with the result of the query. The value returned specifies the
|
||
|
* number of items in the returned array of results. The returned array of
|
||
|
* results are statically allocated and should not be deallocated using free()
|
||
|
*/
|
||
|
typedef unsigned int (*QueryDatabase)(
|
||
|
DatabaseConnection* const connection, const char * const query_string,
|
||
|
void *** const results);
|
||
|
|
||
|
/* Connection to a database. */
|
||
|
struct DatabaseConnection {
|
||
|
const char *url;
|
||
|
unsigned int port;
|
||
|
QueryDatabase query_database;
|
||
|
};
|
||
|
|
||
|
/* Connect to a database. */
|
||
|
DatabaseConnection* connect_to_database(const char * const url,
|
||
|
const unsigned int port);
|
||
|
|