statein.h
00001 //
00002 // statein.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_statein_h
00029 #define _util_state_statein_h
00030
00031 #ifdef __GNUC__
00032 #pragma interface
00033 #endif
00034
00035 #include <util/state/state.h>
00036 #include <util/container/avlmap.h>
00037 #include <util/keyval/keyval.h>
00038
00039 namespace sc {
00040
00041 class StateInData {
00042 public:
00043 Ref<SavableState> ptr;
00044 int size;
00045 int type;
00046 int offset;
00047
00048 StateInData(): size(0), type(0), offset(0) {}
00049 };
00050
00051 class StateClassData {
00052 public:
00053 int version;
00054 char *name;
00055 const ClassDesc *classdesc;
00056 int ninstance;
00057 public:
00058 StateClassData(int v=-1, const ClassDesc *c=0, char *name=0):
00059 version(v), name(name), classdesc(c), ninstance(0) {}
00060 StateClassData(const StateClassData &d) { operator=(d); }
00061 ~StateClassData();
00062 StateClassData &operator=(const StateClassData &d);
00063 };
00064
00067 class StateIn: public DescribedClass {
00068 friend class SavableState;
00069 friend class TranslateDataIn;
00070 private:
00071 // do not allow copy constructor or assignment
00072 StateIn(const StateIn&);
00073 void operator=(const StateIn&);
00074 int have_cd_;
00075 int dir_loc_;
00076 char key_[KeyVal::MaxKeywordLength];
00077 int keylength_;
00078 protected:
00079 Ref<KeyVal> override_;
00080 TranslateDataIn *translate_;
00081 AVLMap<int,StateInData> ps_;
00082 int expected_object_num_;
00083 AVLMap<ClassDescP,int> classidmap_;
00084 AVLMap<int,StateClassData> classdatamap_;
00085 int nextclassid_;
00086 int node_to_node_;
00087 int version_;
00088 int date_;
00089 char userid_[9];
00090 char format_;
00091 virtual int get_array_void(void*,int);
00092
00093 int push_key(const char *key);
00094 void pop_key(int n) { key_[n] = '\0'; keylength_ = n; }
00095 const char *key() { return key_; }
00096
00097 void get_directory();
00098 int directory_location() const { return dir_loc_; }
00099 void find_and_get_directory();
00100
00101 // The following members are called by friend SavableState
00102
00108 virtual int getobject(Ref<SavableState> &);
00109
00111 virtual int dir_getobject(Ref<SavableState> &, const char *name);
00112
00117 virtual void haveobject(int,const Ref<SavableState> &);
00118
00121 virtual void nextobject(int);
00122 virtual void haveobject(const Ref<SavableState> &);
00123
00124 void have_classdesc() { have_cd_ = 1; }
00125 int need_classdesc() { int tmp = have_cd_; have_cd_ = 0; return !tmp; }
00126
00131 virtual int get(const ClassDesc**);
00132 public:
00133 StateIn();
00134 virtual ~StateIn();
00135
00138 virtual void get_header();
00139
00142 virtual int version(const ClassDesc*);
00143
00145 virtual int getstring(char*&);
00146
00148 virtual int get(char&r, const char *keyword = 0);
00149 virtual int get(unsigned int&r, const char *keyword = 0);
00150 virtual int get(int&r, const char *keyword = 0);
00151 virtual int get(float&r, const char *keyword = 0);
00152 virtual int get(double&r, const char *keyword = 0);
00155 virtual int get(char*&);
00156 virtual int get(unsigned int*&);
00157 virtual int get(int*&);
00158 virtual int get(float*&);
00159 virtual int get(double*&);
00162 virtual int get_array_char(char*p,int size);
00163 virtual int get_array_uint(unsigned int*p,int size);
00164 virtual int get_array_int(int*p,int size);
00165 virtual int get_array_float(float*p,int size);
00166 virtual int get_array_double(double*p,int size);
00167
00172 int node_to_node() const { return node_to_node_; }
00173
00175 virtual int use_directory();
00176
00178 virtual int tell();
00181 virtual void seek(int);
00184 virtual int seekable();
00185 int has_directory() const { return dir_loc_ != 0; }
00186
00189 virtual void list_objects(std::ostream& = ExEnv::out0());
00190
00193 void set_override(const Ref<KeyVal>&kv) { override_ = kv; }
00195 const Ref<KeyVal> &override() const { return override_; }
00196 };
00197
00198 }
00199
00200 #endif
00201
00202 // Local Variables:
00203 // mode: c++
00204 // c-file-style: "CLJ"
00205 // End:
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