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61 lines
2.7 KiB
C
61 lines
2.7 KiB
C
/*====================================================================*
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- Copyright (C) 2001 Leptonica. All rights reserved.
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-
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- Redistribution and use in source and binary forms, with or without
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- modification, are permitted provided that the following conditions
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- are met:
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- 1. Redistributions of source code must retain the above copyright
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- notice, this list of conditions and the following disclaimer.
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- 2. Redistributions in binary form must reproduce the above
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- copyright notice, this list of conditions and the following
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- disclaimer in the documentation and/or other materials
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- provided with the distribution.
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-
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- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
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- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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- OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*====================================================================*/
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#ifndef LEPTONICA_BBUFFER_H
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#define LEPTONICA_BBUFFER_H
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/*!
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* \file bbuffer.h
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*
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* <pre>
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* Expandable byte buffer for reading data in from memory and
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* writing data out to other memory.
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*
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* This implements a queue of bytes, so data read in is put
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* on the "back" of the queue (i.e., the end of the byte array)
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* and data written out is taken from the "front" of the queue
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* (i.e., from an index marker "nwritten" that is initially set at
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* the beginning of the array.) As usual with expandable
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* arrays, we keep the size of the allocated array and the
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* number of bytes that have been read into the array.
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*
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* For implementation details, see bbuffer.c.
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* </pre>
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*/
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/*! Expandable byte buffer for memory read/write operations */
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struct L_ByteBuffer
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{
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l_int32 nalloc; /*!< size of allocated byte array */
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l_int32 n; /*!< number of bytes read into to the array */
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l_int32 nwritten; /*!< number of bytes written from the array */
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l_uint8 *array; /*!< byte array */
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};
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typedef struct L_ByteBuffer L_BBUFFER;
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#endif /* LEPTONICA_BBUFFER_H */
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