Fix: live_viewer_connection_create(): `lttng_live_msg_iter` can be `NULL`
[babeltrace.git] / src / plugins / ctf / lttng-live / viewer-connection.h
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1#ifndef LTTNG_LIVE_VIEWER_CONNECTION_H
2#define LTTNG_LIVE_VIEWER_CONNECTION_H
3
4/*
5 * Copyright 2016 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 */
25
26#include <stdio.h>
27#include <glib.h>
28
91d81473 29#include "common/macros.h"
578e048b 30#include "compat/socket.h"
7cdc2bab 31
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32/*
33 * FIXME: This is an internal Babeltrace library header; it is not meant
34 * to be generic as it is now. Make sure this included code does not
35 * log because it won't find our local log level.
36 */
37#define BT_OBJECT_DONT_LOG
578e048b 38#include "lib/object.h"
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39
40#define LTTNG_DEFAULT_NETWORK_VIEWER_PORT 5344
41
42#define LTTNG_LIVE_MAJOR 2
43#define LTTNG_LIVE_MINOR 4
44
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45struct lttng_live_component;
46
14f28187 47struct live_viewer_connection {
c01594de 48 bt_logging_level log_level;
2ece7dd0 49 bt_self_component *self_comp;
b19ff26f 50 bt_object obj;
7cdc2bab 51
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52 GString *url;
53
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54 GString *relay_hostname;
55 GString *target_hostname;
56 GString *session_name;
57
1cb3cdd7 58 BT_SOCKET control_sock;
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59 int port;
60
61 int32_t major;
62 int32_t minor;
4c66436f 63
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64 bool in_query;
65 struct lttng_live_msg_iter *lttng_live_msg_iter;
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66};
67
68struct packet_index_time {
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69 uint64_t timestamp_begin;
70 uint64_t timestamp_end;
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71};
72
73struct packet_index {
74 off_t offset; /* offset of the packet in the file, in bytes */
75 int64_t data_offset; /* offset of data within the packet, in bits */
76 uint64_t packet_size; /* packet size, in bits */
77 uint64_t content_size; /* content size, in bits */
78 uint64_t events_discarded;
79 uint64_t events_discarded_len; /* length of the field, in bits */
80 struct packet_index_time ts_cycles; /* timestamp in cycles */
81 struct packet_index_time ts_real; /* realtime timestamp */
82 /* CTF_INDEX 1.0 limit */
83 uint64_t stream_instance_id; /* ID of the channel instance */
84 uint64_t packet_seq_num; /* packet sequence number */
85};
86
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87struct live_viewer_connection * live_viewer_connection_create(
88 const char *url, bool in_query,
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89 struct lttng_live_msg_iter *lttng_live_msg_iter,
90 bt_logging_level log_level);
7cdc2bab 91
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92void live_viewer_connection_destroy(
93 struct live_viewer_connection *conn);
7cdc2bab 94
d24d5663 95bt_component_class_query_method_status live_viewer_connection_list_sessions(
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96 struct live_viewer_connection *viewer_connection,
97 const bt_value **user_result);
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98
99#endif /* LTTNG_LIVE_VIEWER_CONNECTION_H */
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