| Namhyung Kim | d6c2522 | 2013-06-04 14:20:21 +0900 | [diff] [blame] | 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 | |
| 28 | enum kbuffer_endian { |
| 29 | KBUFFER_ENDIAN_BIG, |
| 30 | KBUFFER_ENDIAN_LITTLE, |
| 31 | }; |
| 32 | |
| 33 | enum kbuffer_long_size { |
| 34 | KBUFFER_LSIZE_4, |
| 35 | KBUFFER_LSIZE_8, |
| 36 | }; |
| 37 | |
| 38 | enum { |
| 39 | KBUFFER_TYPE_PADDING = 29, |
| 40 | KBUFFER_TYPE_TIME_EXTEND = 30, |
| 41 | KBUFFER_TYPE_TIME_STAMP = 31, |
| 42 | }; |
| 43 | |
| 44 | struct kbuffer; |
| 45 | |
| 46 | struct kbuffer *kbuffer_alloc(enum kbuffer_long_size size, enum kbuffer_endian endian); |
| 47 | void kbuffer_free(struct kbuffer *kbuf); |
| 48 | int kbuffer_load_subbuffer(struct kbuffer *kbuf, void *subbuffer); |
| 49 | void *kbuffer_read_event(struct kbuffer *kbuf, unsigned long long *ts); |
| 50 | void *kbuffer_next_event(struct kbuffer *kbuf, unsigned long long *ts); |
| 51 | unsigned long long kbuffer_timestamp(struct kbuffer *kbuf); |
| 52 | |
| 53 | void *kbuffer_translate_data(int swap, void *data, unsigned int *size); |
| 54 | |
| 55 | void *kbuffer_read_at_offset(struct kbuffer *kbuf, int offset, unsigned long long *ts); |
| 56 | |
| 57 | int kbuffer_curr_index(struct kbuffer *kbuf); |
| 58 | |
| 59 | int kbuffer_curr_offset(struct kbuffer *kbuf); |
| 60 | int kbuffer_curr_size(struct kbuffer *kbuf); |
| 61 | int kbuffer_event_size(struct kbuffer *kbuf); |
| 62 | int kbuffer_missed_events(struct kbuffer *kbuf); |
| 63 | int kbuffer_subbuffer_size(struct kbuffer *kbuf); |
| 64 | |
| 65 | void kbuffer_set_old_format(struct kbuffer *kbuf); |
| 66 | |
| 67 | #endif /* _K_BUFFER_H */ |