1/*
 2 * Copyright (C) 2012 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
 3 *
 4 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 5 * This program is free software; you can redistribute it and/or
 6 * modify it under the terms of the GNU Lesser General Public
 7 * License as published by the Free Software Foundation;
 8 * version 2.1 of the License (not later!)
 9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20 */
21#ifndef _KBUFFER_H
22#define _KBUFFER_H
23
24#ifndef TS_SHIFT
25#define TS_SHIFT		27
26#endif
27
28enum kbuffer_endian {
29	KBUFFER_ENDIAN_BIG,
30	KBUFFER_ENDIAN_LITTLE,
31};
32
33enum kbuffer_long_size {
34	KBUFFER_LSIZE_4,
35	KBUFFER_LSIZE_8,
36};
37
38enum {
39	KBUFFER_TYPE_PADDING		= 29,
40	KBUFFER_TYPE_TIME_EXTEND	= 30,
41	KBUFFER_TYPE_TIME_STAMP		= 31,
42};
43
44struct kbuffer;
45
46struct kbuffer *kbuffer_alloc(enum kbuffer_long_size size, enum kbuffer_endian endian);
47void kbuffer_free(struct kbuffer *kbuf);
48int kbuffer_load_subbuffer(struct kbuffer *kbuf, void *subbuffer);
49void *kbuffer_read_event(struct kbuffer *kbuf, unsigned long long *ts);
50void *kbuffer_next_event(struct kbuffer *kbuf, unsigned long long *ts);
51unsigned long long kbuffer_timestamp(struct kbuffer *kbuf);
 
 
52
53void *kbuffer_translate_data(int swap, void *data, unsigned int *size);
54
55void *kbuffer_read_at_offset(struct kbuffer *kbuf, int offset, unsigned long long *ts);
56
57int kbuffer_curr_index(struct kbuffer *kbuf);
58
59int kbuffer_curr_offset(struct kbuffer *kbuf);
60int kbuffer_curr_size(struct kbuffer *kbuf);
61int kbuffer_event_size(struct kbuffer *kbuf);
62int kbuffer_missed_events(struct kbuffer *kbuf);
63int kbuffer_subbuffer_size(struct kbuffer *kbuf);
64
65void kbuffer_set_old_format(struct kbuffer *kbuf);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
66
67#endif /* _K_BUFFER_H */

 1/* SPDX-License-Identifier: LGPL-2.1 */
 2/*
 3 * Copyright (C) 2012 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
 4 *
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 5 */
 6#ifndef _KBUFFER_H
 7#define _KBUFFER_H
 8
 9#ifndef TS_SHIFT
10#define TS_SHIFT		27
11#endif
12
13enum kbuffer_endian {
14	KBUFFER_ENDIAN_BIG,
15	KBUFFER_ENDIAN_LITTLE,
16};
17
18enum kbuffer_long_size {
19	KBUFFER_LSIZE_4,
20	KBUFFER_LSIZE_8,
21};
22
23enum {
24	KBUFFER_TYPE_PADDING		= 29,
25	KBUFFER_TYPE_TIME_EXTEND	= 30,
26	KBUFFER_TYPE_TIME_STAMP		= 31,
27};
28
29struct kbuffer;
30
31struct kbuffer *kbuffer_alloc(enum kbuffer_long_size size, enum kbuffer_endian endian);
32void kbuffer_free(struct kbuffer *kbuf);
33int kbuffer_load_subbuffer(struct kbuffer *kbuf, void *subbuffer);
34void *kbuffer_read_event(struct kbuffer *kbuf, unsigned long long *ts);
35void *kbuffer_next_event(struct kbuffer *kbuf, unsigned long long *ts);
36unsigned long long kbuffer_timestamp(struct kbuffer *kbuf);
37unsigned long long kbuffer_subbuf_timestamp(struct kbuffer *kbuf, void *subbuf);
38unsigned int kbuffer_ptr_delta(struct kbuffer *kbuf, void *ptr);
39
40void *kbuffer_translate_data(int swap, void *data, unsigned int *size);
41
42void *kbuffer_read_at_offset(struct kbuffer *kbuf, int offset, unsigned long long *ts);
43
44int kbuffer_curr_index(struct kbuffer *kbuf);
45
46int kbuffer_curr_offset(struct kbuffer *kbuf);
47int kbuffer_curr_size(struct kbuffer *kbuf);
48int kbuffer_event_size(struct kbuffer *kbuf);
49int kbuffer_missed_events(struct kbuffer *kbuf);
50int kbuffer_subbuffer_size(struct kbuffer *kbuf);
51
52void kbuffer_set_old_format(struct kbuffer *kbuf);
53int kbuffer_start_of_data(struct kbuffer *kbuf);
54
55/* Debugging */
56
57struct kbuffer_raw_info {
58	int			type;
59	int			length;
60	unsigned long long	delta;
61	void			*next;
62};
63
64/* Read raw data */
65struct kbuffer_raw_info *kbuffer_raw_get(struct kbuffer *kbuf, void *subbuf,
66					 struct kbuffer_raw_info *info);
67
68#endif /* _K_BUFFER_H */