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bitmap_t Class Reference 'have' bitmap array More... #include <bitmap_t.h> List of all members. Public Member Functions   bitmap_t (size_t number_of_pieces)   ~bitmap_t () unsigned char *  GetBitmap () size_t  GetBitmapSize () void  set (size_t piece) bool  IsSet (size_t piece) void  Load (const std::string &) void  Save (const std::string &) size_t  GetSet () size_t  GetNumberOfPieces () Private Member Functions   bitmap_t (const bitmap_t &) bitmap_t &  operator= (const bitmap_t &) Private Attributes unsigned char *  m_bitmap size_t  m_bitmap_size size_t  m_number_of_pieces Detailed Description 'have' bitmap array File ......... bitmap_t.h Published .... 2005-06-14 Author ....... grymse@alhem.net Definition at line 31 of file bitmap_t.h. Constructor & Destructor Documentation bitmap_t::bitmap_t ( size_t  number_of_pieces  )  File ......... bitmap_t.cpp Published .... 2005-06-14 Author ....... grymse@alhem.net Definition at line 30 of file bitmap_t.cpp. References m_bitmap, and m_bitmap_size. :m_bitmap(NULL) ,m_bitmap_size(0) ,m_number_of_pieces(number_of_pieces) { m_bitmap_size = number_of_pieces / 8; if (number_of_pieces % 8) m_bitmap_size++; m_bitmap = new unsigned char[m_bitmap_size]; memset(m_bitmap, 0, m_bitmap_size); } bitmap_t::~bitmap_t (  )  Definition at line 43 of file bitmap_t.cpp. References m_bitmap. { if (m_bitmap) delete[] m_bitmap; } bitmap_t::bitmap_t ( const bitmap_t &   )  [inline, private] Definition at line 51 of file bitmap_t.h. {} // copy constructor Member Function Documentation unsigned char* bitmap_t::GetBitmap (  )  [inline] Definition at line 37 of file bitmap_t.h. References m_bitmap. Referenced by pSocket::SendBitmap(). { return m_bitmap; } size_t bitmap_t::GetBitmapSize (  )  [inline] Definition at line 38 of file bitmap_t.h. References m_bitmap_size. Referenced by pSocket::SendBitmap(). { return m_bitmap_size; } void bitmap_t::set ( size_t  piece  )  Definition at line 50 of file bitmap_t.cpp. References m_bitmap. Referenced by pSocket::SendBitmap(). { size_t n = piece / 8; int bit[] = {128,64,32,16,8,4,2,1}; m_bitmap[n] |= bit[piece % 8]; } bool bitmap_t::IsSet ( size_t  piece  )  Definition at line 80 of file bitmap_t.cpp. References m_bitmap. Referenced by GetSet(). { size_t n = piece / 8; int bit[] = {128,64,32,16,8,4,2,1}; return (m_bitmap[n] & bit[piece % 8]) ? true : false; } void bitmap_t::Load ( const std::string &   )  Definition at line 58 of file bitmap_t.cpp. References m_bitmap, and m_bitmap_size. { FILE *fil = fopen(filename.c_str(), "rb"); if (fil) { fread(m_bitmap, 1, m_bitmap_size, fil); fclose(fil); } } void bitmap_t::Save ( const std::string &   )  Definition at line 69 of file bitmap_t.cpp. References m_bitmap, and m_bitmap_size. { FILE *fil = fopen(filename.c_str(), "wb"); if (fil) { fwrite(m_bitmap, 1, m_bitmap_size, fil); fclose(fil); } } size_t bitmap_t::GetSet (  )  return number of set bits Definition at line 88 of file bitmap_t.cpp. References IsSet(), and m_number_of_pieces. { size_t q = 0; for (size_t i = 0; i < m_number_of_pieces; i++) if (IsSet(i)) q++; return q; } size_t bitmap_t::GetNumberOfPieces (  )  [inline] Definition at line 48 of file bitmap_t.h. References m_number_of_pieces. { return m_number_of_pieces; } bitmap_t& bitmap_t::operator= ( const bitmap_t &   )  [inline, private] Definition at line 52 of file bitmap_t.h. { return *this; } // assignment operator Member Data Documentation unsigned char* bitmap_t::m_bitmap [private] Definition at line 54 of file bitmap_t.h. Referenced by bitmap_t(), GetBitmap(), IsSet(), Load(), Save(), set(), and ~bitmap_t(). size_t bitmap_t::m_bitmap_size [private] Definition at line 55 of file bitmap_t.h. Referenced by bitmap_t(), GetBitmapSize(), Load(), and Save(). size_t bitmap_t::m_number_of_pieces [private] Definition at line 56 of file bitmap_t.h. Referenced by GetNumberOfPieces(), and GetSet(). The documentation for this class was generated from the following files: bitmap_t.h bitmap_t.cpp

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