agb/mgba-test-runner/c/vendor/mgba-util/circle-buffer.h

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2021-04-20 07:21:44 +10:00
/* Copyright (c) 2013-2014 Jeffrey Pfau
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef CIRCLE_BUFFER_H
#define CIRCLE_BUFFER_H
#include <mgba-util/common.h>
CXX_GUARD_START
struct CircleBuffer {
void* data;
size_t capacity;
size_t size;
void* readPtr;
void* writePtr;
};
void CircleBufferInit(struct CircleBuffer* buffer, unsigned capacity);
void CircleBufferDeinit(struct CircleBuffer* buffer);
size_t CircleBufferSize(const struct CircleBuffer* buffer);
size_t CircleBufferCapacity(const struct CircleBuffer* buffer);
void CircleBufferClear(struct CircleBuffer* buffer);
int CircleBufferWrite8(struct CircleBuffer* buffer, int8_t value);
int CircleBufferWrite16(struct CircleBuffer* buffer, int16_t value);
int CircleBufferWrite32(struct CircleBuffer* buffer, int32_t value);
size_t CircleBufferWrite(struct CircleBuffer* buffer, const void* input, size_t length);
int CircleBufferRead8(struct CircleBuffer* buffer, int8_t* value);
int CircleBufferRead16(struct CircleBuffer* buffer, int16_t* value);
int CircleBufferRead32(struct CircleBuffer* buffer, int32_t* value);
size_t CircleBufferRead(struct CircleBuffer* buffer, void* output, size_t length);
size_t CircleBufferDump(const struct CircleBuffer* buffer, void* output, size_t length);
CXX_GUARD_END
#endif