45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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#ifndef __SAFE_QUEUE_H__
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#define __SAFE_QUEUE_H__
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#include "plat_types.h"
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struct SAFE_QUEUE_T {
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uint8_t first;
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uint8_t last;
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uint8_t count;
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uint8_t size;
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uint8_t watermark;
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uint32_t *items;
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};
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void safe_queue_init(struct SAFE_QUEUE_T *queue, uint32_t *items, uint32_t size);
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int safe_queue_put(struct SAFE_QUEUE_T *queue, uint32_t item);
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int safe_queue_get(struct SAFE_QUEUE_T *queue, uint32_t *itemp);
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int safe_queue_pop(struct SAFE_QUEUE_T *queue, uint32_t *itemp);
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int safe_queue_peek(const struct SAFE_QUEUE_T *queue, int offset, uint32_t *itemp);
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uint32_t safe_queue_watermark(const struct SAFE_QUEUE_T *queue);
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int safe_queue_dump(const struct SAFE_QUEUE_T *queue);
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#endif
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