1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2022 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef WS_PG_RESOURCE_H
30 #define WS_PG_RESOURCE_H
31
32 #include "../../public/nsapi.h"
33
34 #include <libpq-fe.h>
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 typedef struct PgResourcePool {
41 /*
42 * ResourcePool parameters
43 */
44 pblock *param;
45
46 /*
47 * Cfg memorypool
48 */
49 pool_handle_t *pool;
50
51 /*
52 * ResourcePool name
53 */
54 const char *name;
55
56 /*
57 * connection string used for PQconnectdb
58 */
59 char *connection;
60
61
62 } PgResourcePool;
63
64 typedef struct PgResource {
65 PGconn *connection;
66 } PgResource;
67
68 ResourceType* pg_get_resource_type(void);
69
70 void * pg_resourcepool_init(pool_handle_t *pool, const char *rpname, pblock *pb);
71 void pg_resourcepool_destroy(PgResourcePool *pg);
72 void * pg_resourcepool_createresource(PgResourcePool *pg);
73 void pg_resourcepool_freeresource(PgResourcePool *pg, PgResource *res);
74 int pg_resourcepool_prepare(PgResourcePool *pg, PgResource *res);
75 int pg_resourcepool_finish(PgResourcePool *pg, PgResource *res);
76 void * pg_resourcepool_getresourcedata(PgResource *res);
77
78 /*
79 * checks if conn is a working connection and logs an error message if not
80 * conn can be null (resulting in an error message)
81 * if conn is not null but the status is not CONNECTION_OK,
82 * conn will be destroyed
83 */
84 int pg_check_connection(int loglevel, const char *rpname, PGconn *connection);
85
86 #ifdef __cplusplus
87 }
88 #endif
89
90 #endif /* WS_PG_RESOURCE_H */
91
92