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