prepare the 0.3 release
[lttngtop.git] / src / lttng-live-comm.h
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>
28 #include "lttng-viewer-abi.h"
29
30 #define LTTNG_DEFAULT_NETWORK_VIEWER_PORT 5344
31
32 #define LTTNG_LIVE_MAJOR 2
33 #define LTTNG_LIVE_MINOR 4
34
35 struct lttng_live_ctx {
36 char traced_hostname[NAME_MAX];
37 char session_name[NAME_MAX];
38 char relay_hostname[NAME_MAX];
39 int control_sock;
40 int port;
41 /* Protocol version to use for this connection. */
42 uint32_t major;
43 uint32_t minor;
44 struct lttng_live_session *session;
45 struct bt_context *bt_ctx;
46 GArray *session_ids;
47 };
48
49 struct lttng_live_viewer_stream {
50 uint64_t id;
51 uint64_t mmap_size;
52 uint64_t ctf_stream_id;
53 FILE *metadata_fp_write;
54 ssize_t metadata_len;
55 int metadata_flag;
56 int data_pending;
57 struct lttng_live_session *session;
58 struct lttng_live_ctf_trace *ctf_trace;
59 struct lttng_viewer_index current_index;
60 char path[PATH_MAX];
61 };
62
63 struct 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
71 struct 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;
76 struct bt_trace_handle *handle;
77 int trace_id;
78 int in_use;
79 };
80
81 /* Just used in listing. */
82 struct lttng_live_relay_session {
83 uint32_t streams;
84 uint32_t clients;
85 uint32_t timer;
86 char *name;
87 char *hostname;
88 };
89
90 int lttng_live_connect_viewer(struct lttng_live_ctx *ctx);
91 int lttng_live_establish_connection(struct lttng_live_ctx *ctx);
92 int lttng_live_list_sessions(struct lttng_live_ctx *ctx, const char *path);
93 int lttng_live_attach_session(struct lttng_live_ctx *ctx, uint64_t id);
94 int lttng_live_read(struct lttng_live_ctx *ctx);
95 int lttng_live_get_new_streams(struct lttng_live_ctx *ctx, uint64_t id);
96 int lttng_live_should_quit(void);
97
98 #endif /* _LTTNG_LIVE_FUNCTIONS_H */
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