bitmap.h
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上传日期:2021-08-29
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- /************************************************************************
- * RSTP library - Rapid Spanning Tree (802.1t, 802.1w)
- * Copyright (C) 2001-2003 Optical Access
- * Author: Alex Rozin
- *
- * This file is part of RSTP library.
- *
- * RSTP library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as published by the
- * Free Software Foundation; version 2.1
- *
- * RSTP library is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
- * General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with RSTP library; see the file COPYING. If not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- **********************************************************************/
- #ifndef __BITMAP_H
- #define __BITMAP_H
- #define NUMBER_OF_PORTS 4
- typedef struct tagBITMAP
- {
- unsigned long part0; /* Least Significant part */
- } BITMAP_T;
- #define BitmapClear(BitmapPtr)
- { (BitmapPtr)->part0 = 0; }
- #define BitmapSetAllBits(BitmapPtr)
- { (BitmapPtr)->part0 = 0xF; }
- #define BitmapClearBits(BitmapPtr,BitmapBitsPtr)
- { (BitmapPtr)->part0 &= ~((BitmapBitsPtr)->part0); }
- #define BitmapSetBits(BitmapPtr,BitmapBitsPtr)
- { (BitmapPtr)->part0 |= ((BitmapBitsPtr)->part0); }
- #define BitmapOr(ResultPtr,BitmapPtr1,BitmapPtr2)
- { (ResultPtr)->part0 = (BitmapPtr1)->part0 | (BitmapPtr2)->part0; }
- #define BitmapAnd(ResultPtr,BitmapPtr1,BitmapPtr2)
- { (ResultPtr)->part0 = (BitmapPtr1)->part0 & (BitmapPtr2)->part0; }
- #define BitmapNot(ResultPtr,BitmapPtr)
- { (ResultPtr)->part0 = ~((BitmapPtr)->part0); }
- /* Return zero if identical */
- #define BitmapCmp(BitmapPtr1,BitmapPtr2)
- ((BitmapPtr1)->part0 != (BitmapPtr2)->part0)
- #define BitmapIsZero(BitmapPtr)
- (!(BitmapPtr)->part0)
- #define BitmapIsAllOnes(BitmapPtr)
- ((BitmapPtr)->part0 == 0xF)
- #define BitmapGetBit(BitmapPtr,Bit)
- ((BitmapPtr)->part0 & (1 << (Bit)))
- /* Bit range [0 .. 63] */
- #define BitmapSetBit(BitmapPtr,Bit)
- {(BitmapPtr)->part0 |= (1 << (Bit)); }
- #define BitmapClearBit(BitmapPtr,Bit)
- (BitmapPtr)->part0 &= ~(1 << (Bit));
- #define BitmapCopy(BitmapDstPtr,BitmapSrcPtr)
- { (BitmapDstPtr)->part0 = (BitmapSrcPtr)->part0; }
- #define BitmapXor(ResultPtr,BitmapPtr1,BitmapPtr2)
- { (ResultPtr)->part0 = (BitmapPtr1)->part0 ^ (BitmapPtr2)->part0; }
- #endif /* __BITMAP_H */