Get rid of clock-raw and use real clock
[babeltrace.git] / include / babeltrace / trace-handle.h
1 #ifndef _BABELTRACE_TRACE_HANDLE_H
2 #define _BABELTRACE_TRACE_HANDLE_H
3
4 /*
5 * BabelTrace
6 *
7 * trace_handle header
8 *
9 * Copyright 2012 EfficiOS Inc. and Linux Foundation
10 *
11 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
12 * Julien Desfossez <julien.desfossez@efficios.com>
13 *
14 * Permission is hereby granted, free of charge, to any person obtaining a copy
15 * of this software and associated documentation files (the "Software"), to deal
16 * in the Software without restriction, including without limitation the rights
17 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
18 * copies of the Software, and to permit persons to whom the Software is
19 * furnished to do so, subject to the following conditions:
20 *
21 * The above copyright notice and this permission notice shall be included in
22 * all copies or substantial portions of the Software.
23 */
24
25 #include <stdint.h>
26 #include <babeltrace/clock-types.h>
27
28 /*
29 * trace_handle : unique identifier of a trace
30 *
31 * The trace_handle allows the user to manipulate a trace file directly.
32 * It is a unique identifier representing a trace file.
33 */
34 struct bt_trace_handle;
35 struct bt_ctf_event;
36
37 /*
38 * bt_trace_handle_get_path : returns the path of a trace_handle or NULL
39 * on error.
40 */
41 const char *bt_trace_handle_get_path(struct bt_context *ctx, int handle_id);
42
43 /*
44 * bt_trace_handle_get_timestamp_begin : returns the creation time (in
45 * nanoseconds or cycles depending on type) of the buffers of a trace
46 * or -1ULL on error.
47 */
48 uint64_t bt_trace_handle_get_timestamp_begin(struct bt_context *ctx,
49 int handle_id, enum bt_clock_type type);
50
51 /*
52 * bt_trace_handle_get_timestamp_end : returns the destruction timestamp
53 * (in anoseconds or cycles depending on type) of the buffers of a trace
54 * or -1ULL on error.
55 */
56 uint64_t bt_trace_handle_get_timestamp_end(struct bt_context *ctx,
57 int handle_id, enum bt_clock_type type);
58
59 /*
60 * bt_ctf_event_get_handle_id : get the handle id associated with an event
61 *
62 * Returns -1 on error
63 */
64 int bt_ctf_event_get_handle_id(const struct bt_ctf_event *event);
65
66 #endif /* _BABELTRACE_TRACE_HANDLE_H */
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