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Diffstat (limited to 'src/pq/pq_prepare.c')
-rw-r--r-- | src/pq/pq_prepare.c | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/src/pq/pq_prepare.c b/src/pq/pq_prepare.c deleted file mode 100644 index 76fc5c374..000000000 --- a/src/pq/pq_prepare.c +++ /dev/null | |||
@@ -1,122 +0,0 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2017, 2019 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @file pq/pq_prepare.c | ||
22 | * @brief functions to connect to libpq (PostGres) | ||
23 | * @author Christian Grothoff | ||
24 | */ | ||
25 | #include "platform.h" | ||
26 | #include "pq.h" | ||
27 | |||
28 | |||
29 | /** | ||
30 | * Create a `struct GNUNET_PQ_PreparedStatement`. | ||
31 | * | ||
32 | * @param name name of the statement | ||
33 | * @param sql actual SQL statement | ||
34 | * @param num_args number of arguments in the statement | ||
35 | * @return initialized struct | ||
36 | */ | ||
37 | struct GNUNET_PQ_PreparedStatement | ||
38 | GNUNET_PQ_make_prepare (const char *name, | ||
39 | const char *sql, | ||
40 | unsigned int num_args) | ||
41 | { | ||
42 | struct GNUNET_PQ_PreparedStatement ps = { | ||
43 | .name = name, | ||
44 | .sql = sql, | ||
45 | .num_arguments = num_args | ||
46 | }; | ||
47 | |||
48 | return ps; | ||
49 | } | ||
50 | |||
51 | |||
52 | /** | ||
53 | * Request creation of prepared statements @a ps from Postgres. | ||
54 | * | ||
55 | * @param db database to prepare the statements for | ||
56 | * @param ps #GNUNET_PQ_PREPARED_STATEMENT_END-terminated array of prepared | ||
57 | * statements. | ||
58 | * @return #GNUNET_OK on success, | ||
59 | * #GNUNET_SYSERR on error | ||
60 | */ | ||
61 | enum GNUNET_GenericReturnValue | ||
62 | GNUNET_PQ_prepare_statements (struct GNUNET_PQ_Context *db, | ||
63 | const struct GNUNET_PQ_PreparedStatement *ps) | ||
64 | { | ||
65 | if (db->ps != ps) | ||
66 | { | ||
67 | /* add 'ps' to list db->ps of prepared statements to run on reconnect! */ | ||
68 | unsigned int olen = 0; /* length of existing 'db->ps' array */ | ||
69 | unsigned int nlen = 0; /* length of 'ps' array */ | ||
70 | struct GNUNET_PQ_PreparedStatement *rps; /* combined array */ | ||
71 | |||
72 | if (NULL != db->ps) | ||
73 | while (NULL != db->ps[olen].name) | ||
74 | olen++; | ||
75 | while (NULL != ps[nlen].name) | ||
76 | nlen++; | ||
77 | rps = GNUNET_new_array (olen + nlen + 1, | ||
78 | struct GNUNET_PQ_PreparedStatement); | ||
79 | if (NULL != db->ps) | ||
80 | memcpy (rps, | ||
81 | db->ps, | ||
82 | olen * sizeof (struct GNUNET_PQ_PreparedStatement)); | ||
83 | memcpy (&rps[olen], | ||
84 | ps, | ||
85 | nlen * sizeof (struct GNUNET_PQ_PreparedStatement)); | ||
86 | GNUNET_free (db->ps); | ||
87 | db->ps = rps; | ||
88 | } | ||
89 | |||
90 | /* actually prepare statements */ | ||
91 | for (unsigned int i = 0; NULL != ps[i].name; i++) | ||
92 | { | ||
93 | PGresult *ret; | ||
94 | |||
95 | GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, | ||
96 | "pq", | ||
97 | "Preparing SQL statement `%s' as `%s'\n", | ||
98 | ps[i].sql, | ||
99 | ps[i].name); | ||
100 | ret = PQprepare (db->conn, | ||
101 | ps[i].name, | ||
102 | ps[i].sql, | ||
103 | ps[i].num_arguments, | ||
104 | NULL); | ||
105 | if (PGRES_COMMAND_OK != PQresultStatus (ret)) | ||
106 | { | ||
107 | GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK, | ||
108 | "pq", | ||
109 | _ ("PQprepare (`%s' as `%s') failed with error: %s\n"), | ||
110 | ps[i].sql, | ||
111 | ps[i].name, | ||
112 | PQerrorMessage (db->conn)); | ||
113 | PQclear (ret); | ||
114 | return GNUNET_SYSERR; | ||
115 | } | ||
116 | PQclear (ret); | ||
117 | } | ||
118 | return GNUNET_OK; | ||
119 | } | ||
120 | |||
121 | |||
122 | /* end of pq/pq_prepare.c */ | ||