GNUnet 0.21.0
gnunet_db_lib.h
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1/*
2 This file is part of GNUnet
3 Copyright (C) 2017 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 */
25#ifndef GNUNET_DB_LIB_H
26#define GNUNET_DB_LIB_H
27
28
29#include "gnunet_common.h"
30
37{
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48
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61
62 /* Larger values may be returned for SELECT statements
63 that returned more than one result. */
64};
65
66
71
79typedef void
80(*GNUNET_DB_EventCallback)(void *cls,
81 const void *extra,
82 size_t extra_size);
83
85
86
92{
98
103
104};
105
107
108
109#endif
commonly used definitions; globals in this file are exempt from the rule that the module name ("commo...
void(* GNUNET_DB_EventCallback)(void *cls, const void *extra, size_t extra_size)
Function called on events received from Postgres.
Definition: gnunet_db_lib.h:80
GNUNET_DB_QueryStatus
Status code returned from functions running database commands.
Definition: gnunet_db_lib.h:37
@ GNUNET_DB_STATUS_SUCCESS_ONE_RESULT
The transaction succeeded, and yielded one result.
Definition: gnunet_db_lib.h:60
@ GNUNET_DB_STATUS_HARD_ERROR
A hard error occurred, retrying will not help.
Definition: gnunet_db_lib.h:41
@ GNUNET_DB_STATUS_SUCCESS_NO_RESULTS
The transaction succeeded, but yielded zero results.
Definition: gnunet_db_lib.h:55
@ GNUNET_DB_STATUS_SOFT_ERROR
A soft error occurred, retrying the transaction may succeed.
Definition: gnunet_db_lib.h:47
#define GNUNET_NETWORK_STRUCT_BEGIN
Define as empty, GNUNET_PACKED should suffice, but this won't work on W32.
#define GNUNET_NETWORK_STRUCT_END
Define as empty, GNUNET_PACKED should suffice, but this won't work on W32;.
#define GNUNET_PACKED
gcc-ism to get packed structs.
Handle for an active LISTENer to the database.
Definition: pq_event.c:34
Header of a structure that describes an event channel we may subscribe to or notify on.
Definition: gnunet_db_lib.h:92
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format.
Definition: gnunet_db_lib.h:97
uint16_t type
The type of the message (GNUNET_DB_EVENT_TYPE_XXXX), in big-endian format.