00001 /* 00002 CLAW - a C++ Library Absolutely Wonderful 00003 00004 CLAW is a free library without any particular aim but being useful to 00005 anyone. 00006 00007 Copyright (C) 2005-2008 Julien Jorge 00008 00009 This library is free software; you can redistribute it and/or 00010 modify it under the terms of the GNU Lesser General Public 00011 License as published by the Free Software Foundation; either 00012 version 2.1 of the License, or (at your option) any later version. 00013 00014 This library is distributed in the hope that it will be useful, 00015 but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 Lesser General Public License for more details. 00018 00019 You should have received a copy of the GNU Lesser General Public 00020 License along with this library; if not, write to the Free Software 00021 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00022 00023 contact: julien_jorge@yahoo.fr 00024 */ 00030 #include <cassert> 00031 00032 /*----------------------------------------------------------------------------*/ 00038 template< typename Stream > 00039 claw::buffered_ostream<Stream>::buffered_ostream 00040 ( stream_type& f, unsigned int buffer_size ) 00041 : m_stream(f), m_begin(new char[buffer_size]), m_end(m_begin+buffer_size), 00042 m_current(m_begin) 00043 { 00044 00045 } // buffered_ostream::buffered_ostream() 00046 00047 /*----------------------------------------------------------------------------*/ 00051 template< typename Stream > 00052 claw::buffered_ostream<Stream>::~buffered_ostream() 00053 { 00054 flush(); 00055 delete[] m_begin; 00056 } // buffered_ostream::~buffered_ostream() 00057 00058 /*----------------------------------------------------------------------------*/ 00063 template< typename Stream > 00064 template<typename T> 00065 void claw::buffered_ostream<Stream>::write( T v ) 00066 { 00067 write( reinterpret_cast<const char*>(&v), sizeof(v) ); 00068 } // buffered_ostream::read_more() 00069 00070 /*----------------------------------------------------------------------------*/ 00076 template< typename Stream > 00077 void claw::buffered_ostream<Stream>::write(const char* p, unsigned int n ) 00078 { 00079 while (n > 0) 00080 { 00081 unsigned int q = std::min( n, (unsigned int)(m_end - m_current) ); 00082 const char* end = p+q; 00083 00084 for ( ; p!=end ; ++p, ++m_current ) 00085 *m_current = *p; 00086 00087 n -= q; 00088 00089 if (m_current == m_end) 00090 flush(); 00091 } 00092 } // buffered_ostream::write() 00093 00094 /*----------------------------------------------------------------------------*/ 00098 template< typename Stream > 00099 void claw::buffered_ostream<Stream>::flush() 00100 { 00101 if (m_current != m_begin) 00102 { 00103 m_stream.write( m_begin, m_current - m_begin ); 00104 m_current = m_begin; 00105 } 00106 } // buffered_ostream::flush()