PPTStreamBuf.h

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00001 // PPTStreamBuf.h
00002 
00003 // This file is part of bes, A C++ back-end server implementation framework
00004 // for the OPeNDAP Data Access Protocol.
00005 
00006 // Copyright (c) 2004-2009 University Corporation for Atmospheric Research
00007 // Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu>
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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022 //
00023 // You can contact University Corporation for Atmospheric Research at
00024 // 3080 Center Green Drive, Boulder, CO 80301
00025  
00026 // (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005
00027 // Please read the full copyright statement in the file COPYRIGHT_UCAR.
00028 //
00029 // Authors:
00030 //      pwest       Patrick West <pwest@ucar.edu>
00031 //      jgarcia     Jose Garcia <jgarcia@ucar.edu>
00032 
00033 #ifndef I_PPTStreamBuf_h
00034 #define I_PPTStreamBuf_h 1
00035 
00036 #include <streambuf>
00037 
00038 class PPTStreamBuf : public std::streambuf
00039 {
00040 private:
00041     unsigned            d_bufsize ;
00042     int                 d_fd ;
00043     char *              d_buffer ;
00044     unsigned int        count ;
00045 
00046                         PPTStreamBuf()
00047                             : d_bufsize( 0 ),
00048                               d_buffer( 0 ),
00049                               count( 0 ) { }
00050 public:
00051                         PPTStreamBuf(int fd, unsigned bufsize = 1) ;
00052   virtual               ~PPTStreamBuf() ;
00053 
00054   unsigned int          how_many(){ return count ; }
00055 
00056   void                  open( int fd, unsigned bufsize = 1 ) ;
00057   
00058   int                   sync() ;
00059   
00060   int                   overflow(int c) ;
00061 
00062   void                  finish() ;
00063 };
00064 
00065 #endif // I_PPTStreamBuf_h 1
00066 

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