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- /* SPDX-License-Identifier: LGPL-2.1 */
- /*
- * Copyright (C) 2012 Red Hat Inc, Steven Rostedt <[email protected]>
- *
- */
- #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);
- unsigned long long kbuffer_subbuf_timestamp(struct kbuffer *kbuf, void *subbuf);
- unsigned int kbuffer_ptr_delta(struct kbuffer *kbuf, void *ptr);
- 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);
- int kbuffer_start_of_data(struct kbuffer *kbuf);
- /* Debugging */
- struct kbuffer_raw_info {
- int type;
- int length;
- unsigned long long delta;
- void *next;
- };
- /* Read raw data */
- struct kbuffer_raw_info *kbuffer_raw_get(struct kbuffer *kbuf, void *subbuf,
- struct kbuffer_raw_info *info);
- #endif /* _K_BUFFER_H */
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