mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-15 10:17:20 +00:00
84 lines
3.1 KiB
C
84 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 1988, 1989, 1990, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
* Copyright (c) 1988, 1989 by Adam de Boor
|
|
* Copyright (c) 1989 by Berkeley Softworks
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Adam de Boor.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)buf.h 8.2 (Berkeley) 4/28/95
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*-
|
|
* buf.h --
|
|
* Header for users of the buf library.
|
|
*/
|
|
|
|
#ifndef _BUF_H
|
|
#define _BUF_H
|
|
|
|
#include "sprite.h"
|
|
|
|
typedef char Byte;
|
|
|
|
typedef struct Buffer {
|
|
int size; /* Current size of the buffer */
|
|
int left; /* Space left (== size - (inPtr - buffer)) */
|
|
Byte *buffer; /* The buffer itself */
|
|
Byte *inPtr; /* Place to write to */
|
|
Byte *outPtr; /* Place to read from */
|
|
} *Buffer;
|
|
|
|
/* Buf_AddByte adds a single byte to a buffer. */
|
|
#define Buf_AddByte(bp, byte) \
|
|
(void) (--(bp)->left <= 0 ? Buf_OvAddByte(bp, byte), 1 : \
|
|
(*(bp)->inPtr++ = (byte), *(bp)->inPtr = 0), 1)
|
|
|
|
#define BUF_ERROR 256
|
|
|
|
void Buf_OvAddByte(Buffer, int);
|
|
void Buf_AddBytes(Buffer, int, const Byte *);
|
|
void Buf_UngetByte(Buffer, int);
|
|
void Buf_UngetBytes(Buffer, int, Byte *);
|
|
int Buf_GetByte(Buffer);
|
|
int Buf_GetBytes(Buffer, int, Byte *);
|
|
Byte *Buf_GetAll(Buffer, int *);
|
|
void Buf_Discard(Buffer, int);
|
|
int Buf_Size(Buffer);
|
|
Buffer Buf_Init(int);
|
|
void Buf_Destroy(Buffer, Boolean);
|
|
void Buf_ReplaceLastByte(Buffer, int);
|
|
|
|
#endif /* _BUF_H */
|