362008227b214adc9e38f4477506996a93d2dc6a
[babeltrace.git] / include / babeltrace / trace-handle-internal.h
1 #ifndef _BABELTRACE_TRACE_HANDLE_INTERNAL_H
2 #define _BABELTRACE_TRACE_HANDLE_INTERNAL_H
3
4 /*
5 * BabelTrace
6 *
7 * Internal 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 <stdlib.h>
27 #include <babeltrace/context.h>
28 #include <babeltrace/format.h>
29
30 /*
31 * trace_handle : unique identifier of a trace
32 *
33 * The trace_handle allows the user to manipulate a trace file directly.
34 * It is a unique identifier representing a trace file.
35 */
36 struct bt_trace_handle {
37 int id;
38 struct trace_descriptor *td;
39 struct format *format;
40 char path[PATH_MAX];
41 uint64_t real_timestamp_begin;
42 uint64_t real_timestamp_end;
43 uint64_t cycles_timestamp_begin;
44 uint64_t cycles_timestamp_end;
45 };
46
47 /*
48 * bt_trace_handle_create : allocates a trace_handle
49 *
50 * Returns a newly allocated trace_handle or NULL on error
51 */
52 struct bt_trace_handle *bt_trace_handle_create(struct bt_context *ctx);
53
54 /*
55 * bt_trace_handle_destroy : free a trace_handle
56 */
57 void bt_trace_handle_destroy(struct bt_trace_handle *bt);
58
59 #endif /* _BABELTRACE_TRACE_HANDLE_INTERNAL_H */
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