2 * SPDX-License-Identifier: MIT
4 * Copyright 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 #ifndef LTTNG_LIVE_VIEWER_CONNECTION_H
8 #define LTTNG_LIVE_VIEWER_CONNECTION_H
16 #include <babeltrace2/babeltrace.h>
18 #include "common/macros.h"
19 #include "compat/socket.h"
21 #define LTTNG_DEFAULT_NETWORK_VIEWER_PORT 5344
23 #define LTTNG_LIVE_MAJOR 2
24 #define LTTNG_LIVE_MINOR 4
26 enum lttng_live_viewer_status {
27 LTTNG_LIVE_VIEWER_STATUS_OK = 0,
28 LTTNG_LIVE_VIEWER_STATUS_ERROR = -1,
29 LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED = -2,
32 enum lttng_live_get_one_metadata_status {
33 /* The end of the metadata stream was reached. */
34 LTTNG_LIVE_GET_ONE_METADATA_STATUS_END = 1,
35 /* One metadata packet was received and written to file. */
36 LTTNG_LIVE_GET_ONE_METADATA_STATUS_OK = LTTNG_LIVE_VIEWER_STATUS_OK,
38 * A critical error occurred when contacting the relay or while
39 * handling its response.
41 LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR = LTTNG_LIVE_VIEWER_STATUS_ERROR,
43 LTTNG_LIVE_GET_ONE_METADATA_STATUS_INTERRUPTED = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED,
45 /* The metadata stream was not found on the relay. */
46 LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED = -3,
49 struct lttng_live_component;
51 struct live_viewer_connection {
52 bt_logging_level log_level;
53 bt_self_component *self_comp;
54 bt_self_component_class *self_comp_class;
58 GString *relay_hostname;
59 GString *target_hostname;
60 GString *session_name;
63 BT_SOCKET control_sock;
70 struct lttng_live_msg_iter *lttng_live_msg_iter;
73 struct packet_index_time {
74 uint64_t timestamp_begin;
75 uint64_t timestamp_end;
79 off_t offset; /* offset of the packet in the file, in bytes */
80 int64_t data_offset; /* offset of data within the packet, in bits */
81 uint64_t packet_size; /* packet size, in bits */
82 uint64_t content_size; /* content size, in bits */
83 uint64_t events_discarded;
84 uint64_t events_discarded_len; /* length of the field, in bits */
85 struct packet_index_time ts_cycles; /* timestamp in cycles */
86 struct packet_index_time ts_real; /* realtime timestamp */
87 /* CTF_INDEX 1.0 limit */
88 uint64_t stream_instance_id; /* ID of the channel instance */
89 uint64_t packet_seq_num; /* packet sequence number */
92 enum lttng_live_viewer_status live_viewer_connection_create(
93 bt_self_component *self_comp,
94 bt_self_component_class *self_comp_class,
95 bt_logging_level log_level,
96 const char *url, bool in_query,
97 struct lttng_live_msg_iter *lttng_live_msg_iter,
98 struct live_viewer_connection **viewer_connection);
100 void live_viewer_connection_destroy(
101 struct live_viewer_connection *conn);
103 enum lttng_live_viewer_status lttng_live_create_viewer_session(
104 struct lttng_live_msg_iter *lttng_live_msg_iter);
106 bt_component_class_query_method_status live_viewer_connection_list_sessions(
107 struct live_viewer_connection *viewer_connection,
108 const bt_value **user_result);
110 #endif /* LTTNG_LIVE_VIEWER_CONNECTION_H */