File: StdSystem.cc

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// This file is part of the AspectC++ compiler 'ac++'.
// Copyright (C) 1999-2004  The 'ac++' developers (see aspectc.org)
//                                                                
// This program is free software;  you can redistribute it and/or 
// modify it under the terms of the GNU General Public License as 
// published by the Free Software Foundation; either version 2 of 
// the License, or (at your option) any later version.            
//                                                                
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of 
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  
// GNU General Public License for more details.                   
//                                                                
// You should have received a copy of the GNU General Public      
// License along with this program; if not, write to the Free     
// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, 
// MA  02111-1307  USA                                           


#include "StdSystem.h"
#include "file.h"
using namespace file;


//Puma includes
#include "Puma/SysCall.h"
#include "Puma/VerboseMgr.h"

//stdc++ includes
#include <iostream>
#include <fstream>
#include <string.h>
#include <stdlib.h>

StdSystem::StdSystem(ErrorStream& e,AGxxConfig& config,const string& exec_str):System(e,config,"")
{
	
   // create temporary files
	char* tmp_file;

   // tmp file for stdout
   tmp_file= (char*) Puma::SysCall::mktemp("agxx_stdout",&_err);
   _tmp_stdout_file=tmp_file;
   free(tmp_file);
   
   // tmp file for stderr
   tmp_file= (char*) Puma::SysCall::mktemp("agxx_stderr",&_err);
   _tmp_stderr_file=tmp_file;
   free(tmp_file);

	// append shell commands to execution string which 
	// write the output into temproray files
#if defined (WIN32)
	this->_exec_str="\""+exec_str +" 2>"+_tmp_stderr_file+" 1>"+_tmp_stdout_file+"\"";
#else
	this->_exec_str=exec_str +" 2>"+_tmp_stderr_file+" 1>"+_tmp_stdout_file;
#endif
}


bool StdSystem::execute(){
	VerboseMgr vm(cout,_config.verbose());
	bool ret;	

	if ( (ret=System::execute()) ){
		//read files into strings
		_stdout_str=read_file(_tmp_stdout_file.c_str());
		_stderr_str=read_file(_tmp_stderr_file.c_str());
	}else{
		print_file(_tmp_stderr_file.c_str());
	}

	vm++;
	vm << "removing temporary file: " << _tmp_stdout_file.c_str() << endvm;
	if ( remove(_tmp_stdout_file.c_str()) < 0){
		_err << sev_warning << "Could not remove temporary file : "<< _tmp_stdout_file.c_str() << endMessage;
	}
	
	vm << "removing temporary file: " <<_tmp_stderr_file.c_str() << endvm; 
	if ( remove(_tmp_stderr_file.c_str()) < 0){
		_err << sev_warning << "Could not remove temporary file : "<< _tmp_stderr_file.c_str() << endMessage;
	}

	return ret;
}


string StdSystem::read_file(const char* fname){
	string line,s;
	
	ifstream fs(fname);
	if(fs){
		while(getline(fs,line)){
			s +=  line + '\n';
		}
		fs.close();
	}else{
		_err << sev_error << "Could not open file :" << fname << endMessage;
		s="";
	}

	return s;
}

void StdSystem::print_file(const char* fname){
	string line;
	
	ifstream fs(fname);
	if(fs){
		while(getline(fs,line)){
			cerr <<  line << endl;
		}
		fs.close();
	}else{
		_err << sev_error << "Could not open file :" << fname << endMessage;
	}
}