mirror of https://gitee.com/openkylin/linux.git
68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/*
|
|
* Copyright (C) 2012 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation;
|
|
* version 2.1 of the License (not later!)
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*/
|
|
#ifndef _KBUFFER_H
|
|
#define _KBUFFER_H
|
|
|
|
#ifndef TS_SHIFT
|
|
#define TS_SHIFT 27
|
|
#endif
|
|
|
|
enum kbuffer_endian {
|
|
KBUFFER_ENDIAN_BIG,
|
|
KBUFFER_ENDIAN_LITTLE,
|
|
};
|
|
|
|
enum kbuffer_long_size {
|
|
KBUFFER_LSIZE_4,
|
|
KBUFFER_LSIZE_8,
|
|
};
|
|
|
|
enum {
|
|
KBUFFER_TYPE_PADDING = 29,
|
|
KBUFFER_TYPE_TIME_EXTEND = 30,
|
|
KBUFFER_TYPE_TIME_STAMP = 31,
|
|
};
|
|
|
|
struct kbuffer;
|
|
|
|
struct kbuffer *kbuffer_alloc(enum kbuffer_long_size size, enum kbuffer_endian endian);
|
|
void kbuffer_free(struct kbuffer *kbuf);
|
|
int kbuffer_load_subbuffer(struct kbuffer *kbuf, void *subbuffer);
|
|
void *kbuffer_read_event(struct kbuffer *kbuf, unsigned long long *ts);
|
|
void *kbuffer_next_event(struct kbuffer *kbuf, unsigned long long *ts);
|
|
unsigned long long kbuffer_timestamp(struct kbuffer *kbuf);
|
|
|
|
void *kbuffer_translate_data(int swap, void *data, unsigned int *size);
|
|
|
|
void *kbuffer_read_at_offset(struct kbuffer *kbuf, int offset, unsigned long long *ts);
|
|
|
|
int kbuffer_curr_index(struct kbuffer *kbuf);
|
|
|
|
int kbuffer_curr_offset(struct kbuffer *kbuf);
|
|
int kbuffer_curr_size(struct kbuffer *kbuf);
|
|
int kbuffer_event_size(struct kbuffer *kbuf);
|
|
int kbuffer_missed_events(struct kbuffer *kbuf);
|
|
int kbuffer_subbuffer_size(struct kbuffer *kbuf);
|
|
|
|
void kbuffer_set_old_format(struct kbuffer *kbuf);
|
|
|
|
#endif /* _K_BUFFER_H */
|