Socket.cc

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00001 // Socket.cc
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) 2004,2005 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 #include <unistd.h>
00034 #include <errno.h>
00035 
00036 #include "Socket.h"
00037 #include "SocketException.h"
00038 
00039 void
00040 Socket::close()
00041 {
00042     if( _connected )
00043     {
00044 	::close( _socket ) ;
00045         _socket = 0 ;
00046         _connected = false ;
00047         _listening = false ;
00048     }
00049 }
00050 
00051 void
00052 Socket::send( const string &str, int start, int end )
00053 {
00054     string send_str = str.substr( start, end ) ;
00055     int bytes_written = write( _socket, send_str.c_str(), send_str.length() ) ;
00056     if( bytes_written == -1 )
00057     {
00058         string err( "socket failure, writing on stream socket" ) ;
00059         const char* error_info = strerror( errno ) ;
00060         if( error_info )
00061             err += " " + (string)error_info ;
00062         throw SocketException( err, __FILE__, __LINE__ ) ;
00063     }
00064 }
00065 
00066 int     
00067 Socket::receive( char *inBuff, int inSize )
00068 {
00069     int bytesRead = 0 ;
00070     if( ( bytesRead = read( _socket, inBuff, inSize ) ) < 1 )
00071     {
00072         string err( "socket failure, reading on stream socket: " ) ;
00073         const char *error_info = strerror( errno ) ;
00074         if( error_info )
00075             err += " " + (string)error_info ;
00076         throw SocketException( err, __FILE__, __LINE__ ) ;
00077     }
00078     inBuff[bytesRead] = '\0' ;
00079     return bytesRead ;
00080 }
00081 
00088 void
00089 Socket::dump( ostream &strm ) const
00090 {
00091     strm << BESIndent::LMarg << "Socket::dump - ("
00092                              << (void *)this << ")" << endl ;
00093     BESIndent::Indent() ;
00094     strm << BESIndent::LMarg << "socket: " << _socket << endl ;
00095     strm << BESIndent::LMarg << "is connected? " << _connected << endl ;
00096     strm << BESIndent::LMarg << "is listening? " << _listening << endl ;
00097     strm << BESIndent::LMarg << "socket address set? " << _addr_set << endl ;
00098     if( _addr_set )
00099     {
00100         strm << BESIndent::LMarg << "socket address: " << (void *)&_from << endl;
00101     }
00102     BESIndent::UnIndent() ;
00103 }
00104 

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