API fix : fill the values for timestamp begin and end
[babeltrace.git] / include / babeltrace / format.h
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1#ifndef _BABELTRACE_FORMAT_H
2#define _BABELTRACE_FORMAT_H
3
4/*
5 * BabelTrace
6 *
7 * Trace Format Header
8 *
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9 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
10 *
11 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
fc93b2bd 12 *
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13 * Permission is hereby granted, free of charge, to any person obtaining a copy
14 * of this software and associated documentation files (the "Software"), to deal
15 * in the Software without restriction, including without limitation the rights
16 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
17 * copies of the Software, and to permit persons to whom the Software is
18 * furnished to do so, subject to the following conditions:
fc93b2bd 19 *
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20 * The above copyright notice and this permission notice shall be included in
21 * all copies or substantial portions of the Software.
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22 */
23
3122e6f0 24#include <babeltrace/list.h>
fc93b2bd 25#include <stdint.h>
7fb21036 26#include <stdio.h>
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27
28typedef int bt_intern_str;
fc93b2bd 29
95d36295 30/* forward declaration */
d6425aaf 31struct stream_pos;
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32struct bt_context;
33struct bt_trace_handle;
95d36295 34
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35/* Parent trace descriptor */
36struct trace_descriptor {
37};
bbefb8dd 38
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39struct mmap_stream {
40 int fd;
3122e6f0 41 struct bt_list_head list;
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42};
43
44struct mmap_stream_list {
3122e6f0 45 struct bt_list_head head;
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46};
47
fc93b2bd 48struct format {
34861b9d 49 bt_intern_str name;
fc93b2bd 50
5b80ddfb 51 struct trace_descriptor *(*open_trace)(const char *path, int flags,
06789ffd 52 void (*packet_seek)(struct stream_pos *pos,
20d0dcf9 53 size_t index, int whence),
d6425aaf 54 FILE *metadata_fp);
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55 struct trace_descriptor *(*open_mmap_trace)(
56 struct mmap_stream_list *mmap_list,
06789ffd 57 void (*packet_seek)(struct stream_pos *pos,
20d0dcf9 58 size_t index, int whence),
d6425aaf 59 FILE *metadata_fp);
bbefb8dd 60 void (*close_trace)(struct trace_descriptor *descriptor);
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61 void (*set_context)(struct trace_descriptor *descriptor,
62 struct bt_context *ctx);
63 void (*set_handle)(struct trace_descriptor *descriptor,
64 struct bt_trace_handle *handle);
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65 uint64_t (*timestamp_begin)(struct trace_descriptor *descriptor,
66 struct bt_trace_handle *handle);
67 uint64_t (*timestamp_end)(struct trace_descriptor *descriptor,
68 struct bt_trace_handle *handle);
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69};
70
34861b9d 71extern struct format *bt_lookup_format(bt_intern_str qname);
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72extern void bt_fprintf_format_list(FILE *fp);
73extern int bt_register_format(struct format *format);
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74
75/* TBD: format unregistration */
76
77#endif /* _BABELTRACE_FORMAT_H */
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