/usr/include/syslog-ng/ringbuffer.h is in syslog-ng-dev 3.13.2-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | /*
* Copyright (c) 2002-2014 Balabit
* Copyright (c) 2014 Laszlo Budai
*
* This library 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; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#ifndef RINGBUFFER_H_INCLUDED
#define RINGBUFFER_H_INCLUDED
#include <glib.h>
typedef struct _RingBuffer
{
gpointer buffer;
guint32 head;
guint32 tail;
guint32 count;
guint32 capacity;
guint32 element_size;
} RingBuffer;
typedef gboolean(*RingBufferIsContinuousPredicate)(gpointer element);
void ring_buffer_init(RingBuffer *self);
void ring_buffer_alloc(RingBuffer *self, guint32 size_of_element, guint32 capacity);
gboolean ring_buffer_is_allocated(RingBuffer *self);
void ring_buffer_free(RingBuffer *self);
gboolean ring_buffer_is_full(RingBuffer *self);
gboolean ring_buffer_is_empty(RingBuffer *self);
gpointer ring_buffer_push(RingBuffer *self);
gpointer ring_buffer_pop(RingBuffer *self);
gpointer ring_buffer_tail(RingBuffer *self);
gboolean ring_buffer_drop(RingBuffer *self, guint32 n);
guint32 ring_buffer_capacity(RingBuffer *self);
guint32 ring_buffer_count(RingBuffer *self);
gpointer ring_buffer_element_at(RingBuffer *self, guint32 idx);
guint32 ring_buffer_get_continual_range_length(RingBuffer *self, RingBufferIsContinuousPredicate pred);
#endif
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