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