prepare the 0.3 release
[lttngtop.git] / src / lttng-live-comm.h
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1#ifndef _LTTNG_LIVE_FUNCTIONS_H
2#define _LTTNG_LIVE_FUNCTIONS_H
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>
6c5f6d07 28#include "lttng-viewer-abi.h"
12a91e9d 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
35struct lttng_live_ctx {
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36 char traced_hostname[NAME_MAX];
37 char session_name[NAME_MAX];
38 char relay_hostname[NAME_MAX];
12a91e9d 39 int control_sock;
d81179de 40 int port;
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41 /* Protocol version to use for this connection. */
42 uint32_t major;
43 uint32_t minor;
12a91e9d 44 struct lttng_live_session *session;
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45 struct bt_context *bt_ctx;
46 GArray *session_ids;
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47};
48
49struct lttng_live_viewer_stream {
50 uint64_t id;
51 uint64_t mmap_size;
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52 uint64_t ctf_stream_id;
53 FILE *metadata_fp_write;
54 ssize_t metadata_len;
12a91e9d 55 int metadata_flag;
6c5f6d07 56 int data_pending;
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57 struct lttng_live_session *session;
58 struct lttng_live_ctf_trace *ctf_trace;
6c5f6d07 59 struct lttng_viewer_index current_index;
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60 char path[PATH_MAX];
61};
62
63struct lttng_live_session {
64 uint64_t live_timer_interval;
65 uint64_t stream_count;
66 struct lttng_live_ctx *ctx;
67 struct lttng_live_viewer_stream *streams;
68 GHashTable *ctf_traces;
69};
70
71struct lttng_live_ctf_trace {
72 uint64_t ctf_trace_id;
73 struct lttng_live_viewer_stream *metadata_stream;
74 GPtrArray *streams;
75 FILE *metadata_fp;
6c5f6d07 76 struct bt_trace_handle *handle;
12a91e9d 77 int trace_id;
d81179de 78 int in_use;
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79};
80
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81/* Just used in listing. */
82struct lttng_live_relay_session {
83 uint32_t streams;
84 uint32_t clients;
85 uint32_t timer;
86 char *name;
87 char *hostname;
88};
89
90int lttng_live_connect_viewer(struct lttng_live_ctx *ctx);
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91int lttng_live_establish_connection(struct lttng_live_ctx *ctx);
92int lttng_live_list_sessions(struct lttng_live_ctx *ctx, const char *path);
93int lttng_live_attach_session(struct lttng_live_ctx *ctx, uint64_t id);
6c5f6d07 94int lttng_live_read(struct lttng_live_ctx *ctx);
d81179de 95int lttng_live_get_new_streams(struct lttng_live_ctx *ctx, uint64_t id);
6c5f6d07 96int lttng_live_should_quit(void);
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97
98#endif /* _LTTNG_LIVE_FUNCTIONS_H */
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