1/* Copyright (c) 2013-2014 Jeffrey Pfau
 2 *
 3 * This Source Code Form is subject to the terms of the Mozilla Public
 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 6#ifndef CIRCLE_BUFFER_H
 7#define CIRCLE_BUFFER_H
 8
 9#include "util/common.h"
10
11struct CircleBuffer {
12	void* data;
13	size_t capacity;
14	size_t size;
15	void* readPtr;
16	void* writePtr;
17};
18
19void CircleBufferInit(struct CircleBuffer* buffer, unsigned capacity);
20void CircleBufferDeinit(struct CircleBuffer* buffer);
21size_t CircleBufferSize(const struct CircleBuffer* buffer);
22size_t CircleBufferCapacity(const struct CircleBuffer* buffer);
23void CircleBufferClear(struct CircleBuffer* buffer);
24int CircleBufferWrite8(struct CircleBuffer* buffer, int8_t value);
25int CircleBufferWrite16(struct CircleBuffer* buffer, int16_t value);
26int CircleBufferWrite32(struct CircleBuffer* buffer, int32_t value);
27int CircleBufferRead8(struct CircleBuffer* buffer, int8_t* value);
28int CircleBufferRead16(struct CircleBuffer* buffer, int16_t* value);
29int CircleBufferRead32(struct CircleBuffer* buffer, int32_t* value);
30size_t CircleBufferRead(struct CircleBuffer* buffer, void* output, size_t length);
31size_t CircleBufferDump(const struct CircleBuffer* buffer, void* output, size_t length);
32
33#endif