ef2b38e7a9
and keyboard drivers, as well as pipefs. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12357 a95241bf-73f2-0310-859d-f6bbb57e9c96
35 lines
1012 B
C
35 lines
1012 B
C
/*
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* Copyright 2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef RING_BUFFER_H
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#define RING_BUFFER_H
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#include <OS.h>
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struct ring_buffer;
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct ring_buffer *create_ring_buffer(size_t size);
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void delete_ring_buffer(struct ring_buffer *buffer);
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void ring_buffer_clear(struct ring_buffer *buffer);
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size_t ring_buffer_readable(struct ring_buffer *buffer);
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size_t ring_buffer_writable(struct ring_buffer *buffer);
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void ring_buffer_flush(struct ring_buffer *buffer, size_t bytes);
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size_t ring_buffer_read(struct ring_buffer *buffer, uint8 *data, ssize_t length);
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size_t ring_buffer_write(struct ring_buffer *buffer, const uint8 *data, ssize_t length);
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ssize_t ring_buffer_user_read(struct ring_buffer *buffer, uint8 *data, ssize_t length);
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ssize_t ring_buffer_user_write(struct ring_buffer *buffer, const uint8 *data, ssize_t length);
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#ifdef __cplusplus
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}
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#endif
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#endif /* RING_BUFFER_H */
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