e0a10c90d61c0767a390e7c94c4f045ca0db1278
[babeltrace.git] / formats / bt-dummy / bt-dummy.c
1 /*
2 * BabelTrace - Dummy Output
3 *
4 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
5 *
6 * Author: 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
19 #include <babeltrace/ctf-text/types.h>
20 #include <babeltrace/format.h>
21 #include <babeltrace/babeltrace-internal.h>
22 #include <inttypes.h>
23 #include <uuid/uuid.h>
24 #include <sys/mman.h>
25 #include <errno.h>
26 #include <sys/types.h>
27 #include <sys/stat.h>
28 #include <fcntl.h>
29 #include <dirent.h>
30 #include <glib.h>
31 #include <unistd.h>
32 #include <stdlib.h>
33
34 static
35 int bt_dummy_write_event(struct stream_pos *ppos, struct ctf_stream *stream)
36 {
37 return 0;
38 }
39
40 static
41 struct trace_descriptor *bt_dummy_open_trace(const char *path, int flags,
42 void (*packet_seek)(struct stream_pos *pos, size_t index,
43 int whence), FILE *metadata_fp)
44 {
45 struct ctf_text_stream_pos *pos;
46
47 pos = g_new0(struct ctf_text_stream_pos, 1);
48 pos->parent.rw_table = NULL;
49 pos->parent.event_cb = bt_dummy_write_event;
50 return &pos->trace_descriptor;
51 }
52
53 static
54 void bt_dummy_close_trace(struct trace_descriptor *td)
55 {
56 struct ctf_text_stream_pos *pos =
57 container_of(td, struct ctf_text_stream_pos,
58 trace_descriptor);
59 free(pos);
60 }
61
62 static
63 struct format bt_dummy_format = {
64 .open_trace = bt_dummy_open_trace,
65 .close_trace = bt_dummy_close_trace,
66 };
67
68 static
69 void __attribute__((constructor)) bt_dummy_init(void)
70 {
71 int ret;
72
73 bt_dummy_format.name = g_quark_from_static_string("dummy");
74 ret = bt_register_format(&bt_dummy_format);
75 assert(!ret);
76 }
77
78 /* TODO: finalize */
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