text: /*
   This is part of the OTF library. Copyright by ZIH, TU Dresden 2005-2013.
   Authors: Andreas Knuepfer, Denis Huenich, Johannes Spazier
  */
  
  #ifdef HAVE_CONFIG_H
  #include "config.h"
  #endif
  
  #include <string>
  #include <iostream>
  #include <sstream>
  #include <iterator>
  #include <vector>
  #include <list>
  
  #include <map>
  #include <set>
  
  #include <string.h>
  #include <stdlib.h>
  #include <unistd.h>
  #include <assert.h>
  #include <stdio.h>
  
  #include "OTF_Platform.h"
  
  #include "procList.h"
  #include "Handler.h"
  #include "otfshrink.h"
  
  #define MAX_L	10
  #define LIST_MODE 0
  #define RANGE_MODE 1
  #define TABLE_MODE 2
  
  #define CLEAR_EVERYTHING free_all_pointers(ch_i, first, entries, writer, reader, \
  					   handlers, manager, master, new_master);
  
  #define DEFAULT_OUTFILE "out"
  
  #define SHOW_HELPTEXT { \
  	int l = 0; while( Helptext[l] ) { printf( "%s", Helptext[l++] ); } }
  
  static const char* Helptext[] = {
  "                                                                           \n",
  " otfshrink - Create a new OTF trace that only includes                     \n",
  "             specified processes.                                          \n",
  "                                                                           \n",
  " Syntax: otfshrink [options] -i <file>                                     \n",
  "                                                                           \n",
  "   options:                                                                \n",
  "      -h, --help    show this help message                                 \n",
  "      -V            show OTF version                                       \n",
  "      -i <file>     input file name                                        \n",
  "      -o <name>     namestub of the output file                            \n",
  "                    (default: " DEFAULT_OUTFILE ")                         \n",
  "      -l \"<list>\"   a list of processes in quotes                        \n",
  "                    to enable, i.e. keep in the copy,                      \n",
  "                    e.g. '-l \"1,2 4-8 3\",10 12-20'                       \n",
  "      -v            invert setting from '-l',                              \n",
  "                    i.e. deactivate/exclude listed processes               \n",
  "      -m \"<list>\"   map all listed processes to one representative       \n",
  "                    and remove all remaining ones                          \n",
  "                    first process in list is the representative,           \n",
  "                    must not be mixed with '-l' and '-v'                   \n",
  "      -f <file>     read multiple '-m' lists from the given file           \n",
  "                    one list/group per line, empty lines allowed           \n",
  "      -s <mode>     simulation mode: display all selected                  \n",
  "                    processes, no files are created,                       \n",
  "                    (display modes: (l)ist, (r)ange, or (t)able,           \n",
  "                     defaut: range)                                        \n",
  "      -p <file>     displays all processes with name and id                \n",
  "                    input file without \".otf\"                            \n",
  "                                                                           \n",
  " Multiple instances of '-l', '-m', and '-f' may be used.                   \n",
  "                                                                           \n",
  NULL };
  
  
  /* well, we have some global variables */
  
  
  /* this map contains the specified process IDs which are 
  either to keep or to drop depending on 'mode' */
  set< uint32_t > cpuMap;
  bool inverse= false;
  
  
  /* map key is the id of the representative, the value set contains all ids of 
  processes to be replaced by the representative (including the key) */
  map< uint32_t, set< uint32_t > > replacementMap;
  
  #define MODE_DEFAULT    0
  #define MODE_NORMAL     1
  #define MODE_INVERSE    2
  #define MODE_MAP        3
  
  uint32_t mode= MODE_DEFAULT; /* MODE_DEFAULT, MODE_NORMAL, MODE_INVERSE, MODE_MAP */
  
  
  bool simulation = false;
  int sim_mode = RANGE_MODE;
  string input_path;
  string input_file;
  string input_folder;
  string output_file;
  string output_folder;
  string output_path;
  
  int write_master(string input, string output, bool show, int sim_mode);
  int display_processes(firstarg *first, int sim_mode);
  void free_all_pointers(char *ch_i, firstarg *first, OTF_MapEntry** entries, OTF_Writer *writer,
  		      OTF_Reader *reader, OTF_HandlerArray *handlers, OTF_FileManager *manager,
  		      OTF_MasterControl *master, OTF_MasterControl *new_master);
  /*initialize OTF_Stream_Reader*/
  int readDefProc (string filename);
  int parse_parameters( int argc, char* argv[] );
  
  int parse_p(string line);
  int parse_token(char* token,set<uint32_t>& tMap);
  int parse_range(char* line, int op);
  int parse_replacement_file( const char* filename );
  string convert_ItoA (int num);
  bool checkString(char* str);
  // int parse_replacement_line( char* line );
  /*parse -l option, accept ranges, ',' and ' ' are accepted as seperators*/
  int parse_list_line( char* line  );
  
  
  int parse_replacement_file( const char* filename ) {
  
      FILE* f= fopen( filename, "r" );
      assert( f );
  
      /* the commeted-out parts are for using getline which is much safer than fgets.
      Unfortunately, getline is not avail on Mac and whatnot, even though it is in the
      POSIX standard after it started as a GNU extension
      
      Maybe introduce a HAVE_GETLINE autoconf test sometime
      */
  
      /*
      char* line= NULL;
      size_t len= 0;
      */
  
      const size_t len= 100000;
      char line[len];
  
      /*
      while ( -1 != getline( &line, &len, f ) ) {
      */
      set<uint32_t> s;
      while ( NULL != fgets( line, len, f ) ) {
  	if ( 0 != parse_range( line, 1 ) ) return 1;
      }
  
      fclose( f );
      /*
      free( line );
      */
  
      return 0;
  }
  int parse_token(char* token,set<uint32_t>& tMap) {
      if (!token) return 0;
      if( false == checkString(token) ) {
        cout << "Error: '" << token << "' includes (a) letter(s)" << endl;
        return 1;
      }
      const char* delim="-";
      char* tok;
      uint32_t start=0;
      uint32_t end=0;
      
      tok=strtok(token, delim);
      
  	start=strtoll( tok, &tok, 10);
  	if(0 == start) {
  	  cout << "Error: argument '0' is not possible" << endl;
  	  return 1;
  	}  
  	end=start;
  	tok=strtok(NULL, delim);
  	if(NULL!=tok) {
  	    end=strtoll( tok, &tok, 10);
  	    if(0 == end) {
  	      cout << "Error: argument '0' is not possible" << endl;
  	      return 1;
  	    }  
              tok=strtok(NULL, delim);
  	    if(NULL!=tok || start > end) {
  		cerr << "Error: could not parse '" << token << "', abort" << endl;
  		return 1;
  	    } 
  	}	
  	for(uint32_t i=start; i<=end; i++) {
  	    tMap.insert( i );
  	} 
  	return 0;
  }
  string convert_ItoA (int num) {
      string result;          	// string which will contain the result
      ostringstream convert;   	// stream used for the conversion
      convert << num;      	// insert the textual representation of 'Number' in the characters in the stream
      result = convert.str();
      return result;
  }
  bool checkString(char* str) {
      char* delim = (char*)"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
      for(uint32_t i = 0; i < strlen(str); i++) {
         for(uint32_t y = 0; y < strlen(delim); y++) {
  	if(str[i]==delim[y]) {
  	  return false;
  	}
        }
      }
      return true;
  }
  int parse_range(char* line, int op) {
      char* tmp;
      char* token;
      string flash;
      uint32_t begin = 0;
      int ret=0;
      const char* delim= " {},:;\t\n";
      set<uint32_t >* s=NULL;
      token=strtok_r(line,delim,&tmp);
      if(!token) 
  	return 0;	//ignore empty lines  
      
      if( '-' == token [0] ) {
  	begin =1;
  	flash = (char*)"1-";
  	flash += (char*)(token+1);
      } else if( '-' == token [strlen(token)-1]) { 
  	cout << "Error: missing number after '-' at '" << token << "'" << endl;
  	return 1;
      } else {
  	begin=strtoll( token, NULL, 10);
  	if (0 == begin) {
  	  cout << "Error: argument '0' is not possible" << endl;
  	  return 1; 
  	}
  	flash = token;
      }
      if(0==op) {
  	ret=parse_token((char*)flash.c_str(),cpuMap);
      } else if(1==op) {
  	s=&(replacementMap[ begin ]);
  	ret=parse_token((char*)flash.c_str(),*s);
      }
  
      for (token=strtok_r(NULL,delim,&tmp); token && ret == 0; token=strtok_r(NULL,delim,&tmp)) {
  	if( '-' == token [0] ) {
  	  flash = (char*)"1-";
  	  flash += (char*)(token+1);
  	} else if( '-' == token [strlen(token)-1]) { 
  	  cout << "Error: missing number after '-' at '" << token << "'" << endl;
  	  return 1;
  	}
  	else {
  	  flash = token; 
  	}
  	if(0==op) {
  	    ret=parse_token((char*)flash.c_str(),cpuMap);
  	} else if(1==op) {
  	    ret=parse_token((char*)flash.c_str(),*s);
  	}
      }
      /*only for testing purposes*/
  //        cout << "-------------------" << endl;
  //        set<uint32_t>::iterator myIterator;
  //        if(0==op) {
  //     	for(myIterator = cpuMap.begin();myIterator != cpuMap.end(); myIterator++) {
  //     	    cout << *myIterator << endl;
  //     	}
  //      	cout << "cputMap Size: " << cpuMap.size() << endl;
  //         }else if(1==op) {
  //     	for(myIterator = s->begin();myIterator != s->end(); myIterator++) {
  //     	    cout << *myIterator << endl;
  //     	}
  //      	cout << "s Size: " << s->size() << endl;
  //         }
      return ret;
  }
  int handleDefProcesses (void *userData, uint32_t stream, uint32_t process, const char *name, uint32_t parent) {
       procList_append(procList,process,parent,(char*)name);
       return OTF_RETURN_OK;
  }
  int readDefProc(string filename) {
       /*---------------------------------------------------------*/
       /*Creates a new OTF_Stream_Reader to read all definitions	*/
       /*of a trace and write them into a new datatype.		*/
       /*---------------------------------------------------------*/
       OTF_RStream* rstream;
       OTF_FileManager* myManager;
       OTF_HandlerArray* myHandlers;
       
       myManager= OTF_FileManager_open( 100 );
       assert( myManager );
       myHandlers = OTF_HandlerArray_open();
       assert( myHandlers );
       rstream = OTF_RStream_open( filename.c_str(), 0, myManager );
       assert( rstream );
       
       OTF_HandlerArray_setHandler( myHandlers, (OTF_FunctionPointer*) handleDefProcesses, OTF_DEFPROCESS_RECORD );
       OTF_RStream_readDefinitions( rstream, myHandlers );
  
       OTF_RStream_close( rstream );
       OTF_HandlerArray_close( myHandlers );
       OTF_FileManager_close( myManager );
       
     return 0;
  }
  int parse_p(string line) {
  //   string inputF=argv[i];
  			if ( access((line+".otf").c_str(), F_OK) ) {
  			    cerr << "Error while reading tracefile. File \""<<line<<".otf\" does not exist." << endl;
  			    return 1;
  			}
  			readDefProc(line);
  			printf("\n%-6s    %-30s    %-25s\n","group","process_name","process_id");
   			printf("%-6s    %-30s    %-25s\n","-----","-------------","-----------");
  			procList_print(procList);
  			exit( 0 );
  			return 0; // actually not needed, but prevents a compiler warning
  }
  
  int parse_parameters( int argc, char* argv[] ) {
  
  
  	/* check for parameter list */
  	for ( int i = 1; i < argc; i++ ) {
  		if ( 0 == strcmp("-h", argv[i]) || 0 == strcmp("--help", argv[i]) ) {
  
  			SHOW_HELPTEXT
  			exit( 0 );
  		}
  	}
  	
  	/*------------------------------------------------------*/
  	/*Handles -p option. If -p was given as an argument,	*/
  	/*no other parameters are allowed. -p calls function to	*/
  	/*writes definitions, read by an OTF_Stream_Reader, to 	*/
  	/*a new datatype and then displays each process with 	*/
  	/*its name and id sorted and grouped.			*/
  	/*------------------------------------------------------*/
  	for ( int i = 1; i < argc; i++ ) {
  		if ( 0 == strcmp("-p", argv[i]) ) {
  		    if(i+1 < argc) {
  			++i;
  			parse_p( argv[i] );
  // 			string inputF=argv[i];
  // 			if ( access((inputF+".otf").c_str(), F_OK) ) {
  // 			    cerr << "Error while reading tracefile. File \""<<inputF<<".otf\" does not exist." << endl;
  // 			    return 1;
  // 			}
  // 			readDefProc(inputF);
  // 			printf("\n%-6s    %-30s    %-25s\n","group","process_name","process_id");
  //  			printf("%-6s    %-30s    %-25s\n","-----","-------------","-----------");
  // 			procList_print(procList);
  			exit( 0 );
  		    }
  		    else {
  		      cerr << "Error: No argument given after "<< argv[i] << endl;
  		      return 1;
  		    }
  		}
  	}
  
  	for ( int i = 1; i < argc; i++ ) {
  		if ( 0 == strcmp( "-V", argv[i] ) ) {
  
  			printf( "%u.%u.%u \"%s\"\n", OTF_VERSION_MAJOR, OTF_VERSION_MINOR,
  				OTF_VERSION_SUB, OTF_VERSION_STRING);
  			exit( 0 );
  
  		} else if ( 0 == strcmp( "-m", argv[i] ) ) {
  
  
              if ( ( i +1 >= argc ) ) {
  
  				cerr << "Error: No argument given after " << argv[i] << endl;
  // 				return 1;
  			}
  
              if ( MODE_NORMAL == mode ) {
  
                  cerr << "Error: must not mix '-l' and '-m'" << endl;
                  return 1;
              }
  
              if ( MODE_INVERSE == mode ) {
  
                  cerr << "Error: must not mix '-v' and '-m'" << endl;
                  return 1;
              }
  
              mode= MODE_MAP;
              inverse= true;
              int ret= parse_range( argv[i+1], 1);
              if ( 0 != ret ) {
              
                  cerr << "Error parsing '"<< argv[i+1] << "'" << endl;
                  return 1;
              }
  
              ++i;
  
  		} else if ( 0 == strcmp( "-f", argv[i] ) ) {
  
  
              if ( ( i +1 >= argc ) || ( '-' == argv[i+1][0] ) ) {
  
  				cerr << "Error: No argument given after " << argv[i] << endl;
  				return 1;
  			}
  
              if ( MODE_NORMAL == mode ) {
  
                  cerr << "Error: must not mix '-l' and '-m'" << endl;
                  return 1;
              }
  
              if ( MODE_INVERSE == mode ) {
  
                  cerr << "Error: must not mix '-v' and '-m'" << endl;
                  return 1;
              }
  
              mode= MODE_MAP;
              inverse= true;
  
  
              int ret= parse_replacement_file( argv[i+1] );
              if ( 0 != ret ) {
              
                  cerr << "Error parsing '"<< argv[i+1] << "'" << endl;
                  return 1;
              }
  
              ++i;
  
  		} else if ( 0 == strcmp("-l", argv[i]) ) {
  
  		    if ( ( i +1 >= argc ) || ( '-' == argv[i+1][0] ) ) {
  
  					cerr << "Error: No argument given after " << argv[i] << endl;
  					return 1;
  		    }
  
  		    if ( MODE_MAP == mode ) {
  
  			cerr << "Error: must not mix '-m' and '-l'" << endl;
  			return 1;
  		    }
  
  		    if ( MODE_DEFAULT == mode ) {
  		    
  			mode= MODE_NORMAL;
  		    }
  		    int ret= parse_range( argv[i+1], 0);
  		    if ( 0 != ret ) {
  			cerr << "Error parsing '"<< argv[i+1] << "'" << endl;
  			return 1;
  		    }
  		    ++i;
  		} else if ( 0 == strcmp("-v", argv[i]) ) {
  
                  if ( MODE_MAP == mode  ) {
  
                      cerr << "Error: must not mix '-m' and '-v'" << endl;
                      return 1;
                  }
  
                  mode= MODE_INVERSE;
                  inverse= true;
  
  		} else if ( 0 == strcmp("-i", argv[i]) ) {
  
              if ( ( i +1 >= argc ) || ( '-' == argv[i+1][0] ) ) {
  
  				cerr << "Error: No argument given after " << argv[i] << endl;
  				return 1;
  			}
  			
  			i++;
  			input_path = argv[i];
  
  		} else if ( 0 == strcmp("-o", argv[i]) ) {
  
              if ( ( i +1 >= argc ) || ( '-' == argv[i+1][0] ) ) {
  
  				cerr << "Error: No argument given after " << argv[i] << endl;
  				return 1;
  			}
  
  			i++;
  			output_path = argv[i];
  
  		} else if ( 0 == strcmp("-s", argv[i]) ) {
  			simulation = true;
  			if ( (i+1) < argc ) {
  				if ( argv[i+1][0] != '-' ) {
  					i++;
  					if ( 0 == strcmp("l", argv[i]) || 0 == strcmp("list", argv[i]) ) {
  						sim_mode = LIST_MODE;
  					} else if ( 0 == strcmp("r", argv[i]) || 0 == strcmp("range", argv[i]) ) {
  						sim_mode = RANGE_MODE;
  					} else if ( 0 == strcmp("t", argv[i]) || 0 == strcmp("table", argv[i]) ) {
  						sim_mode = TABLE_MODE;
  					} else {
  						cerr << "Error: Wrong argument after " << argv[i-1] << endl;
  						return 1;
  					}
  				}
  			}
  
  		} else {
  			cerr << "Error: Unknown argument " << argv[i] << endl;
  			return 1;
  		}
  
  	}
  
      return 0;
  }
  
  
  
  int main ( int argc, char* argv[] ) {
  //	char *pwd = NULL;
  	size_t found;
  
  	if ( argc <= 1 ) {
  		SHOW_HELPTEXT
  		return 0;
  	}
  
  
      int ret= parse_parameters( argc, argv );
      if ( 0 != ret ) return 100;
  
  
      map< uint32_t, set< uint32_t > >::const_iterator it= replacementMap.begin();
      map< uint32_t, set< uint32_t > >::const_iterator itend= replacementMap.end();
      for ( ; it != itend ; ++it ) {
  
          /*cout << "   " << it->first << " : ";*/
  
          set< uint32_t >::const_iterator jt= it->second.begin();
          set< uint32_t >::const_iterator jtend= it->second.end();
  
          for ( ; jt != jtend ; ++jt ) {
  
              if (*jt != it->first) {
                  /*cout << *jt << " ";*/
                  cpuMap.insert( *jt );
              }
          }
  
          /*cout << endl;*/
      }
  
  	/* string operations to handle input and output path */
  
  	/* check if input file is given */
  	if ( input_path.empty() ) {
  		cerr << "Error: No input file given." << endl;
  		return 101;
  	}
  
  
  #if 0 /* the current working directory seems unnecessary, because we want 
          local links by default, no global paths in links */
  
  	/* get current working directory */
    	pwd = new char[OTF_PATH_MAX];
    	*pwd = '\0';
  	pwd = getcwd(pwd, OTF_PATH_MAX);
  	if ( pwd == NULL) {
  		cerr << "Error: Path length greater than the maximum." << endl;
  		delete[] pwd;
  		return 102;
  	}
  	
  	/* make absolute path - necessary to create a symbolic link later on */
  	if (input_path[0] != '/') {
  		input_path = pwd + string("/") + input_path;
  	}
  
  	if (output_path[0] != '/') {
  		output_path = pwd + string("/") + output_path;
  	}
  
  	delete[] pwd;
  
  #endif /* 0 */
  
  	/* input strings */
  	/* search for ".otf" and cut it off if found */
  	found = input_path.find_last_of(".");
  	if (found != string::npos) {
  		if ( input_path.substr(found) == ".otf" ) {
  			input_path = input_path.erase(found);
  		}
  	}
  
  	/* divide input path in file and folder */
  	found = input_path.find_last_of("/");
  	if (found != string::npos) {
  		input_folder = input_path.substr(0, found + 1);
  		input_file = input_path.substr(found + 1);
  
  	} else {
  
  		// keep input_folder empty
  		input_file = input_path;
      }
  
  	/* output strings */
  	/* search for ".otf" and cut it off if found */
  	found = output_path.find_last_of(".");
  	if (found != string::npos) {
  		if ( output_path.substr(found) == ".otf" ) {
  			output_path = output_path.erase(found);
  		}
  	}
  
  	/* divide output path in file and folder */
  	found = output_path.find_last_of("/");
  	if (found != string::npos) {
  		output_folder = output_path.substr(0, found + 1);
  		output_file = output_path.substr(found + 1);
  
  	} else {
  
          // keep output_folder empty
          output_file = output_path;
      }
  
  	/* check if output directory exists */
  	if ( ! output_folder.empty() && access(output_folder.c_str(), F_OK) ) {
  
  		cerr << "Error: Directory '" << output_folder << "' does not exist!" << endl;
  		return 103;
  	}
  
  	/* check if input and output path were identical */
  	if ( input_path == output_path ) {
  		cerr << "Error: The input and output file cannot be indentical." << endl;
  		return 104;
  	}
  
  	/* make output path if some information are missing */
  	if ( output_file.empty() ) {
  		if ( output_folder.empty() ) {
  			output_path = input_folder + DEFAULT_OUTFILE;
  		} else {
  			output_path = output_folder + DEFAULT_OUTFILE;
  		}
  	}
  
  	/*** end string operations ***/
  
  	/* create symbolic links, definiton file and master file */
  	return write_master( input_path, output_path, simulation, sim_mode );
  }
  
  
  
  int write_master(string input, string output, bool show, int sim_mode) {
  
  	/* create symbolic links, definiton file and master file */
  
  	uint32_t num_args;
  	bool append = false;
  	char *ch_i = new char [MAX_L + 1];
  	firstarg *first = new firstarg;
  	uint64_t read;
  
  	string file;
  	string s_link;
  	
  	string file_suffix[4] = {".events", ".snaps", ".stats", ".marker"};
  
  	OTF_MapEntry** entries = NULL;
  	OTF_Writer *writer = NULL;
  	OTF_Reader *reader = NULL;
  	OTF_HandlerArray *handlers = NULL;
  	OTF_FileManager *manager = NULL;
  	OTF_MasterControl *master = NULL;
  	OTF_MasterControl *new_master = NULL;
  
  	manager = OTF_FileManager_open(2);
  	master = OTF_MasterControl_new(manager);
  	OTF_MasterControl_read(master, input.c_str());
  
  	/* get number of entries in master file, on error abort */
  	num_args = OTF_MasterControl_getCount(master);
  	if(num_args == 0) {
  		if ( access((input + ".otf").c_str(), F_OK) ) {
  			cerr << "Error while reading tracefile. File does not exist." << endl;
  		} else {
  			cerr << "Error while reading tracefile. No entries in file found." << endl;
  		}
  		CLEAR_EVERYTHING
  		return 110;
  	}
  	
  	/* modifies the MapEntries of otf masterfile according to entries in cpuMap*/
  	entries= (OTF_MapEntry**) malloc( num_args * sizeof(OTF_MapEntry*) );
      assert( NULL != entries );
  
  	for(uint32_t i = 0; i < num_args; i++) {
  		entries[i]= OTF_MasterControl_getEntryByIndex( master, i );
          assert( NULL != entries[i] );
  
          for(uint32_t j = 0; j < entries[i]->n; j++) {
              if ( ( cpuMap.end() == cpuMap.find( entries[i]->values[j] ) ) == inverse ) {
  
                  /* either ( not_in_list in inverse_mode ) or 
                  ( found_in_list in normal_mode ) --> keep entry
                  */
  
                  // cerr << "    keep " << entries[i]->values[j] << endl;
  
              } else {
  
                  /* either ( not_in_list in normal_mode ) or 
                  ( found_in_list in inverse_mode ) --> mark to ignore it
                  */
  
                  // cerr << "            drop " << entries[i]->values[j] << endl;
  
                  entries[i]->values[j] = 0;
              }
          }
      }
  
  	/* create new empty master and symbolic links */
  	new_master = OTF_MasterControl_new(manager);
  	for(uint32_t i = 0; i < num_args; i++) {
  		append = false;
  		for(uint32_t j = 0; j < entries[i]->n; j++) {
  			if(entries[i]->values[j] > 0) {
  
  				OTF_MasterControl_append(new_master, entries[i]->argument, entries[i]->values[j]);
  //				first->procMap[ entries[i]->values[j] ] = true;
  				append = true;
  			}
  		}
  
  		/* if there is nothing to append or show_mode is active, don't create symbolic link */
  		if ( ! append || show ) {
  			continue;
  		}
  
  		/* create symbolic links */
  		sprintf(ch_i, "%x", entries[i]->argument );
  
  		for(int k = 0; k < 4; k++) {
  			
  			file = input + string(".") + ch_i + file_suffix[k] + string(".z");
  			s_link = output + string(".") + ch_i + file_suffix[k] + string(".z");
  
  			if ( ! access(file.c_str(), F_OK) ) {
  				if ( ! access(s_link.c_str(), F_OK) ) {
  					if ( unlink(s_link.c_str()) ) {
  						cerr << "Error while removing symbolic link " << s_link << endl;
  						CLEAR_EVERYTHING
  						return 2;
  					}
  				}
  				if ( symlink( file.c_str(), s_link.c_str() ) ) {
  					cerr << "Error while creating symbolic link " << s_link << endl;
  					CLEAR_EVERYTHING
  					return 2;
  				}
  
  			} else {
  
  				file = input + string(".") + ch_i + file_suffix[k];
  				s_link = output + string(".") + ch_i + file_suffix[k];
  
  				if ( ! access(file.c_str(), F_OK) ) {
  					if ( ! access(s_link.c_str(), F_OK) ) {
  						if ( unlink(s_link.c_str()) ) {
  							cerr << "Error while removing symbolic link " << s_link << endl;
  							CLEAR_EVERYTHING
  							return 2;
  						}
  					}
  					if ( symlink( file.c_str(), s_link.c_str() ) ) {
  						cerr << "Error while creating symbolic link " << s_link << endl;
  						CLEAR_EVERYTHING
  						return 2;
  					}
  				} else {
  					if ( k == 0 ) {
  						cerr << "Error: Could not find " << file << endl;
  						CLEAR_EVERYTHING
  						return 2;
  					}
  				}
  			}
  		}
  	}
  
  	/* close original master, he is not needed anymore */
  	OTF_MasterControl_close(master);
  	master = NULL;
  
  	if (show) {
  		display_processes(first, sim_mode);
  		CLEAR_EVERYTHING
  		return 0;
  	}
  
  	/* check if there is at least one process to show */
  	if (OTF_MasterControl_getCount(new_master) < 1) {
  		cerr << "You exclude all processes! Master not wrote." << endl;
  		CLEAR_EVERYTHING
  		return 2;
  	}
  
  	writer = OTF_Writer_open(output.c_str(), 0, manager);
  	reader = OTF_Reader_open(input.c_str(), manager);
  	assert(reader);
  	handlers = OTF_HandlerArray_open();
  
  	first->writer = writer;
  	OTF_HandlerArray_getCopyHandler( handlers, writer );
  
  	OTF_HandlerArray_setHandler(handlers, 
  		(OTF_FunctionPointer*) handleDefProcess, OTF_DEFPROCESS_RECORD);
  	OTF_HandlerArray_setFirstHandlerArg(handlers, 
  	(void*) first, OTF_DEFPROCESS_RECORD);
  
  	if( replacementMap.empty() ) {
  		OTF_HandlerArray_setHandler(handlers, 
  			(OTF_FunctionPointer*) handleDefProcessGroup, OTF_DEFPROCESSGROUP_RECORD);
  		OTF_HandlerArray_setFirstHandlerArg(handlers, 
  			(void*) first, OTF_DEFPROCESSGROUP_RECORD);
  	}
  
  	OTF_HandlerArray_setHandler(handlers, 
  		(OTF_FunctionPointer*) handleDefProcessSubstitutes, OTF_DEFPROCESSSUBSTITUTES_RECORD);
  
  	read = OTF_Reader_readDefinitions (reader, handlers);
  	if( read == OTF_READ_ERROR ) {
  		cerr << "An error occurred while reading the tracefile. It seems to be damaged. Abort." << endl;
  		CLEAR_EVERYTHING
  		return 111;
  	}
  
  	/* in mapping mode write additional definitions */
  
  	/* write substitute record(s) */
  	map< uint32_t, set< uint32_t > >::const_iterator it= replacementMap.begin();
  	map< uint32_t, set< uint32_t > >::const_iterator itend= replacementMap.end();
  	for ( ; it != itend; ++it ) {
  
  		if ( it->second.size() <= 1 )
  			continue;
  
  		uint32_t* substitutes= new uint32_t[it->second.size()];
  		assert( substitutes );
  		uint32_t* p= substitutes;
  
  		set< uint32_t >::const_iterator jt= it->second.begin();
  		set< uint32_t >::const_iterator jtend= it->second.end();
  
  		for ( ; jt != jtend; ++jt ) {
  
  			*p= *jt; p++;
  		}
  
  		if ( 0 == OTF_Writer_writeDefProcessSubstitutes( writer, 0,
  			it->first, it->second.size(), substitutes, NULL ) ) {
  			CLEAR_EVERYTHING
  			return 112;
  		}
  
  		delete [] substitutes;
  	}
  	
  	/* set the writer's master to the modified master instance */
  	/* closing the writer at the end writes the new master file to harddisk */
  	OTF_Writer_setMasterControl(writer, new_master);
  
  	/* clear everything */
  	CLEAR_EVERYTHING
  	
  	return 0;
  }
  
  int display_processes(firstarg *first, int sim_mode) {
  
  	set<uint32_t>::iterator it;
  
  	/* cout << "Note: You are in simulation mode at the moment. No files are created.\n" << endl; */
  	if ( cpuMap.size() < 1) {
  		cout << "You exclude all processes!" << endl;
  
  		return 0;
  	}
  
      if ( inverse ) {
  
          cout << "You choose to disable following processes: " << endl;
  
      } else {
  
          cout << "You choose to enable following processes: " << endl;
      }
  
  	if ( sim_mode == LIST_MODE ) {
  		for (it = cpuMap.begin(); it != cpuMap.end(); ++it) {
  			cout << *it << endl;
  		}
  	
  	} else if ( sim_mode == RANGE_MODE ) {
  		it = cpuMap.begin();
  		uint32_t cur = *it;
  		uint32_t start = cur;
  		uint32_t end = 0;
  		for (it = ++it ; it != cpuMap.end(); ++it) {
  			if ( (cur + 1) == *it ) {
  				cur++;
  			} else {
  				end = cur;
  				if (end > start) {
  					cout << start << " - " << end << endl;
  				} else {
  					cout << start << endl;
  				}
  				cur = *it;
  				start = cur;
  				end = 0;
  			}
  		}
  		if (end == 0) {
  			cout << start << " - " << cur << endl;
  		}
  
  	} else if ( sim_mode == TABLE_MODE ) {
  		int i = 0;
  		for (it = cpuMap.begin(); it != cpuMap.end(); ++it) {
  			cout << *it << "\t";
  			i++;
  			if (i == 8) {
  				cout << endl;
  				i = 0;
  			}
  		}
  		if ( i > 0) {
  			cout << endl;
  		}
  
  	}
  
  	return 0;
  }
  
  void free_all_pointers(char *ch_i, firstarg *first, OTF_MapEntry** entries, OTF_Writer *writer,
  		      OTF_Reader *reader, OTF_HandlerArray *handlers, OTF_FileManager *manager,
  		      OTF_MasterControl *master, OTF_MasterControl *new_master) {
  
  	if(ch_i != NULL) {
  		delete[] ch_i;
  		ch_i = NULL;
  	}
  
  	if(first != NULL) {
  		delete first;
  		first = NULL;
  	}
  
  	if(entries != NULL) {
  		entries = NULL;
  	}
  
  	/* new_master is free'd by writer instance */
  	if(writer != NULL) {
  		OTF_Writer_close(writer);
  		writer = NULL;
  		new_master = NULL;
  	}
  
  	if(reader != NULL) {
  		OTF_Reader_close(reader);
  		reader = NULL;
  	}
  
  
  	if(handlers != NULL) {
  		OTF_HandlerArray_close(handlers);
  		handlers = NULL;
  	}
  
  	if(manager != NULL) {
  		OTF_FileManager_close(manager);
  		manager = NULL;
  	}
  
  	if(master != NULL) {
  		OTF_MasterControl_close(master);
  		master = NULL;
  	}
  
  	if(new_master != NULL) {
  		OTF_MasterControl_close(new_master);
  		new_master = NULL;
  	}
  }
  
  