27 lines
783 B
C
27 lines
783 B
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
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/*
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* Copyright (c) 2023 Amlogic, Inc. All rights reserved.
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*/
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#ifndef _USER_RING_BUFFER_H
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#define _USER_RING_BUFFER_H
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struct ring_buffer {
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void *buffer;
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u32 size;
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u32 in;
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u32 out;
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u8 go_empty;
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};
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struct ring_buffer *ring_buffer_init(u32 size);
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int ring_buffer_release(struct ring_buffer *ring_buf);
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u32 ring_buffer_len(const struct ring_buffer *ring_buf);
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u32 ring_buffer_used_len(const struct ring_buffer *ring_buf);
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u32 ring_buffer_free_len(const struct ring_buffer *ring_buf);
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u32 no_thread_safe_ring_buffer_get(struct ring_buffer *ring_buf, void *buffer, u32 size);
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u32 no_thread_safe_ring_buffer_put(struct ring_buffer *ring_buf, void *buffer, u32 size);
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u32 ring_buffer_go_empty(struct ring_buffer *ring_buf);
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#endif
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