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-rw-r--r--lf_ring_buffer2.h73
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diff --git a/lf_ring_buffer2.h b/lf_ring_buffer2.h
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-/*
- * File : lf_ring_buffer.h
- * Author : Jérémy Zurcher <jeremy@asynk.ch>
- * Date : 05/01/010
- * License :
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#ifndef _LF_RING_BUFFER_H_
-#define _LF_RING_BUFFER_H_
-
-# ifdef __cplusplus
-extern "C" {
-# endif /* __cplusplus */
-
-#include <sys/types.h>
-#include "lf_ring_buffer_data.h"
-
-#define LFRB_NO_BLOCK 1 /* if buffer is full, leave instead of try again and again */
-#define IS_NOT_BLOCKING( flags ) ( (flags)&LFRB_NO_BLOCK )
-
-/* the ring buffer structure */
-typedef struct ring_buffer {
- LFRB_BUFFER_TYPE *buffer; /* buffer data */
- size_t n_buf; /* number of buffers, max 65534, see implementation for details */
- unsigned int indexes; /* indexes where to read_from and write_to */
-} lf_ring_buffer_t;
-
-/* return an initialized lf_ring_buffer_t struct, size is limited to 65534, see implementation for details */
-lf_ring_buffer_t* lf_ring_buffer_create( size_t n_buf );
-
-/* destroy an lf_ring_buffer_t struct */
-void lf_ring_buffer_destroy( lf_ring_buffer_t *r );
-
-/* return 1 if is empty */
-int lf_ring_buffer_empty( lf_ring_buffer_t *r );
-
-/* write data into the ring buffer
- * return 0 on success
- * return -1 if IS_NOT_BLOCKING and buffer is full
- */
-int lf_ring_buffer_write( lf_ring_buffer_t *r, void *data, int flags );
-
-/* read data from the ring buffer
- * return 0 on success
- * return -1 if IS_NOT_BLOCKING and buffer is empty
- */
-int lf_ring_buffer_read( lf_ring_buffer_t *r, void *data, int flags );
-
-# ifdef __cplusplus
-}
-# endif /* __cplusplus */
-
-# endif /* _LF_RING_BUFFER_H_ */