BESProcIdResponseHandler.cc

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00001 // BESProcIdResponseHandler.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 "config.h"
00034 
00035 #include "BESProcIdResponseHandler.h"
00036 #include "BESInfoList.h"
00037 #include "BESInfo.h"
00038 #include "BESResponseNames.h"
00039 
00040 #include <cstdlib>
00041 #if HAVE_UNISTD_H
00042 #include <unistd.h>
00043 #endif
00044 
00045 BESProcIdResponseHandler::BESProcIdResponseHandler( const string &name )
00046     : BESResponseHandler( name )
00047 {
00048 }
00049 
00050 BESProcIdResponseHandler::~BESProcIdResponseHandler( )
00051 {
00052 }
00053 
00054 char *
00055 BESProcIdResponseHandler::fastpidconverter(
00056       long val,                                 /* value to be converted */
00057       char *buf,                                /* output string         */
00058       int base)                                 /* conversion base       */
00059 {
00060       ldiv_t r;                                 /* result of val / base  */
00061 
00062       if (base > 36 || base < 2)          /* no conversion if wrong base */
00063       {
00064             *buf = '\0';
00065             return buf;
00066       }
00067       if (val < 0)
00068             *buf++ = '-';
00069       r = ldiv (labs(val), base);
00070 
00071       /* output digits of val/base first */
00072 
00073       if (r.quot > 0)
00074             buf = fastpidconverter ( r.quot, buf, base);
00075       /* output last digit */
00076 
00077       *buf++ = "0123456789abcdefghijklmnopqrstuvwxyz"[(int)r.rem];
00078       *buf   = '\0';
00079       return buf;
00080 }
00081 
00093 void
00094 BESProcIdResponseHandler::execute( BESDataHandlerInterface &dhi )
00095 {
00096     BESInfo *info = BESInfoList::TheList()->build_info() ;
00097     _response = info ;
00098     dhi.action_name = PROCESS_RESPONSE_STR ;
00099     info->begin_response( PROCESS_RESPONSE_STR ) ;
00100     char mypid[12] ;
00101     fastpidconverter( getpid(), mypid, 10 ) ;
00102     info->add_tag( "pid", mypid ) ;
00103     info->end_response() ;
00104 }
00105 
00118 void
00119 BESProcIdResponseHandler::transmit( BESTransmitter *transmitter,
00120                                   BESDataHandlerInterface &dhi )
00121 {
00122     if( _response )
00123     {
00124         BESInfo *info = dynamic_cast<BESInfo *>(_response) ;
00125         info->transmit( transmitter, dhi ) ;
00126     }
00127 }
00128 
00135 void
00136 BESProcIdResponseHandler::dump( ostream &strm ) const
00137 {
00138     strm << BESIndent::LMarg << "BESProcIdResponseHandler::dump - ("
00139                              << (void *)this << ")" << endl ;
00140     BESIndent::Indent() ;
00141     BESResponseHandler::dump( strm ) ;
00142     BESIndent::UnIndent() ;
00143 }
00144 
00145 BESResponseHandler *
00146 BESProcIdResponseHandler::ProcIdResponseBuilder( const string &name )
00147 {
00148     return new BESProcIdResponseHandler( name ) ;
00149 }
00150 

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