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stateout.h

00001 //
00002 // stateout.h
00003 //
00004 // Copyright (C) 1998 Limit Point Systems, Inc.
00005 //
00006 // Author: Curtis Janssen <cljanss@limitpt.com>
00007 // Maintainer: LPS
00008 //
00009 // This file is part of the SC Toolkit.
00010 //
00011 // The SC Toolkit is free software; you can redistribute it and/or modify
00012 // it under the terms of the GNU Library General Public License as published by
00013 // the Free Software Foundation; either version 2, or (at your option)
00014 // any later version.
00015 //
00016 // The SC Toolkit is distributed in the hope that it will be useful,
00017 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019 // GNU Library General Public License for more details.
00020 //
00021 // You should have received a copy of the GNU Library General Public License
00022 // along with the SC Toolkit; see the file COPYING.LIB.  If not, write to
00023 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
00024 //
00025 // The U.S. Government is granted a limited license as per AL 91-7.
00026 //
00027 
00028 #ifndef _util_state_stateout_h
00029 #define _util_state_stateout_h
00030 
00031 #ifdef __GNUC__
00032 #pragma interface
00033 #endif
00034 
00035 #include <string>
00036 #include <vector>
00037 #include <map>
00038 
00039 #include <util/class/class.h>
00040 #include <util/state/state.h>
00041 
00042 namespace sc {
00043 
00044 class StateOutData {
00045   public:
00046     int num;
00047     int size;
00048     int type;
00049     int offset;
00050 
00051     StateOutData(): num(0), size(0), type(0), offset(0) {}
00052 };
00053 
00061 class StateOut: public DescribedClass {
00062     friend class SavableState;
00063     friend class TranslateDataOut;
00064   private:
00065     // do not allow copy constructor or assignment
00066     StateOut(const StateOut&);
00067     void operator=(const StateOut&);
00068     int have_cd_;
00069   protected:
00070     int dir_loc_loc_;
00071     TranslateDataOut *translate_;
00072     int copy_references_;
00073     int next_object_number_;
00074     std::map<Ref<SavableState>,StateOutData> ps_;
00075     std::map<ClassDescP,int> classidmap_;
00076     int nextclassid_;
00077     int node_to_node_;
00078     virtual int put_array_void(const void*,int);
00079     virtual int putparents(const ClassDesc*);
00080 
00081     void put_directory();
00082 
00083     // The following members are called by friend SavableState
00084 
00085     void have_classdesc() { have_cd_ = 1; }
00086     int need_classdesc() { int tmp = have_cd_; have_cd_ = 0; return !tmp; }
00087 
00092     virtual int putobject(const Ref<SavableState> &);
00093 
00095     virtual int put(const ClassDesc*);
00096   public:
00097     StateOut();
00098     virtual ~StateOut();
00099 
00101     virtual void put_header();
00102 
00105     virtual int putstring(const char*);
00106 
00108     virtual int put(const std::string &);
00109 
00111     virtual int put(char r);
00112     virtual int put(unsigned int r);
00113     virtual int put(int r);
00114     virtual int put(unsigned long r);
00115     virtual int put(float r);
00116     virtual int put(double r);
00119     virtual int put(const char*,int);
00120     virtual int put(const unsigned int*,int);
00121     virtual int put(const int*,int);
00122     virtual int put(const float*,int);
00123     virtual int put(const double*,int);
00126     virtual int put_array_char(const char*p,int size);
00127     virtual int put_array_uint(const unsigned int*p,int size);
00128     virtual int put_array_int(const int*p,int size);
00129     virtual int put_array_float(const float*p,int size);
00130     virtual int put_array_double(const double*p,int size);
00131 
00133     template <class T>
00134     int put(typename std::vector<T> &v) {
00135       int l = v.size();
00136       int r = put(l);
00137       if (l) { for (int i=0; i<l; i++) r += put(v[i]); }
00138       return r;
00139     }
00140 
00144     void forget_references();
00149     void copy_references();
00150 
00152     virtual int use_directory();
00153 
00155     virtual void flush();
00156 
00161     int node_to_node() const { return node_to_node_; }
00162 
00165     virtual int tell();
00168     virtual void seek(int loc);
00171     virtual int seekable();
00172   };
00173 
00174 }
00175 
00176 #endif
00177 
00178 // Local Variables:
00179 // mode: c++
00180 // c-file-style: "CLJ"
00181 // End:

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