Add --debug-info-target-prefix
[babeltrace.git] / formats / lttng-live / lttng-live.h
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1#ifndef _LTTNG_LIVE_H
2#define _LTTNG_LIVE_H
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3
4/*
5 * Copyright 2013 Julien Desfossez <julien.desfossez@efficios.com>
6 * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * SOFTWARE.
25 */
26
27#include <stdint.h>
5805251d 28#include "lttng-viewer-abi.h"
4a744367 29
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30#define LTTNG_DEFAULT_NETWORK_VIEWER_PORT 5344
31
32#define LTTNG_LIVE_MAJOR 2
33#define LTTNG_LIVE_MINOR 4
34
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35/*
36 * The lttng-live output file pointer is currently hardcoded to stdout,
37 * and is expected to be hardcoded to this by fflush() performed between
38 * each packet.
39 */
40#define LTTNG_LIVE_OUTPUT_FP stdout
41
4a744367 42struct lttng_live_ctx {
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43 char traced_hostname[MAXNAMLEN];
44 char session_name[MAXNAMLEN];
45 char relay_hostname[MAXNAMLEN];
4a744367 46 int control_sock;
b5a1fa45 47 int port;
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48 /* Protocol version to use for this connection. */
49 uint32_t major;
50 uint32_t minor;
4a744367 51 struct lttng_live_session *session;
2acdc547 52 struct bt_context *bt_ctx;
b5a1fa45 53 GArray *session_ids;
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54};
55
56struct lttng_live_viewer_stream {
57 uint64_t id;
58 uint64_t mmap_size;
5805251d 59 uint64_t ctf_stream_id;
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60 FILE *metadata_fp_write;
61 ssize_t metadata_len;
4a744367 62 int metadata_flag;
5805251d 63 int data_pending;
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64 struct lttng_live_session *session;
65 struct lttng_live_ctf_trace *ctf_trace;
5805251d 66 struct lttng_viewer_index current_index;
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67 char path[PATH_MAX];
68};
69
70struct lttng_live_session {
71 uint64_t live_timer_interval;
72 uint64_t stream_count;
73 struct lttng_live_ctx *ctx;
74 struct lttng_live_viewer_stream *streams;
705105fc 75 /* HashTable mapping trace_ids to ptrs to struct lttng_live_ctf_trace */
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76 GHashTable *ctf_traces;
77};
78
79struct lttng_live_ctf_trace {
80 uint64_t ctf_trace_id;
81 struct lttng_live_viewer_stream *metadata_stream;
82 GPtrArray *streams;
83 FILE *metadata_fp;
150595c4 84 struct bt_trace_handle *handle;
4a744367 85 int trace_id;
2acdc547 86 int in_use;
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87};
88
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89/* Just used in listing. */
90struct lttng_live_relay_session {
91 uint32_t streams;
92 uint32_t clients;
93 uint32_t timer;
94 char *name;
95 char *hostname;
96};
97
98int lttng_live_connect_viewer(struct lttng_live_ctx *ctx);
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99int lttng_live_establish_connection(struct lttng_live_ctx *ctx);
100int lttng_live_list_sessions(struct lttng_live_ctx *ctx, const char *path);
101int lttng_live_attach_session(struct lttng_live_ctx *ctx, uint64_t id);
23285bf3 102int lttng_live_read(struct lttng_live_ctx *ctx);
2acdc547 103int lttng_live_get_new_streams(struct lttng_live_ctx *ctx, uint64_t id);
8ace20bf 104int lttng_live_should_quit(void);
4a744367 105
c98627ca 106#endif /* _LTTNG_LIVE_H */
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