UCommon
/usr/src/RPM/BUILD/ucommon-6.3.3/inc/ucommon/bitmap.h
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00001 // Copyright (C) 2006-2014 David Sugar, Tycho Softworks.
00002 // Copyright (C) 2015 Cherokees of Idaho.
00003 //
00004 // This file is part of GNU uCommon C++.
00005 //
00006 // GNU uCommon C++ is free software: you can redistribute it and/or modify
00007 // it under the terms of the GNU Lesser General Public License as published
00008 // by the Free Software Foundation, either version 3 of the License, or
00009 // (at your option) any later version.
00010 //
00011 // GNU uCommon C++ is distributed in the hope that it will be useful,
00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014 // GNU Lesser General Public License for more details.
00015 //
00016 // You should have received a copy of the GNU Lesser General Public License
00017 // along with GNU uCommon C++.  If not, see <http://www.gnu.org/licenses/>.
00018 
00027 #ifndef _UCOMMON_BITMAP_H_
00028 #define _UCOMMON_BITMAP_H_
00029 
00030 #ifndef _UCOMMON_CONFIG_H_
00031 #include <ucommon/platform.h>
00032 #endif
00033 
00034 namespace ucommon {
00035 
00052 class __EXPORT bitmap
00053 {
00054 protected:
00055     size_t size;
00056 
00057     typedef union
00058     {
00059         void *a;
00060         uint8_t *b;
00061         uint16_t *w;
00062         uint32_t *l;
00063         uint64_t *d;
00064     }   addr_t;
00065 
00066     addr_t addr;
00067 
00068 public:
00072     typedef enum {
00073         BMALLOC,    
00074         B8,         
00075         B16,        
00076         B32,        
00077         B64,        
00078         BMIN = BMALLOC,
00079         BMAX = B64
00080     } bus_t;
00081 
00082 protected:
00083     bus_t bus;
00084 
00085     unsigned memsize(void) const;
00086 
00087 public:
00094     bitmap(void *addr, size_t length, bus_t size = B8);
00095 
00101     bitmap(size_t length);
00102 
00108     ~bitmap();
00109 
00113     void clear(void);
00114 
00120     bool get(size_t offset) const;
00121 
00127     void set(size_t offset, bool value);
00128 };
00129 
00130 } // namespace ucommon
00131 
00132 #endif