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sc::StateIn(3)			      MPQC			  sc::StateIn(3)

NAME
     sc::StateIn - Restores objects that derive from SavableState.

SYNOPSIS
     #include <statein.h>

     Inherits sc::DescribedClass.

     Inherited by sc::MsgStateBufRecv, and sc::StateInFile.

   Public Member Functions
     virtual void get_header ()
	 Read in the header information.
     virtual int version (const ClassDesc *)
	 Returns  the version of the ClassDesc in the persistent object or -1 if
	 info on the ClassDesc doesn't exist.
     virtual int getstring (char *&)
	 This restores strings saved with StateOut::putstring.
     virtual int get (std::string &)
	 This restores a std::string object.
     virtual int get (char &r, const char *keyword=0)
	 These restore data saved with StateOut's put. members.
     virtual int get (unsigned int &r, const char *keyword=0)
     virtual int get (int &r, const char *keyword=0)
     virtual int get (bool &r, const char *keyword=0)
     virtual int get (float &r, const char *keyword=0)
     virtual int get (double &r, const char *keyword=0)
     virtual int get (char *&)
	 These restore data saved with StateOut's put.
     virtual int get (unsigned int *&)
     virtual int get (int *&)
     virtual int get (float *&)
     virtual int get (double *&)
     virtual int get_array_char (char *p, int size)
	 These restore data saved with StateOut's put.
     virtual int get_array_uint (unsigned int *p, int size)
     virtual int get_array_int (int *p, int size)
     virtual int get_array_float (float *p, int size)
     virtual int get_array_double (double *p, int size)
     template<class T > int get (typename std::vector< T > &v)
	 Read an STL vector of data.
     int node_to_node () const
	 True if this is a node to node save/restore.
     virtual int use_directory ()
	 Returns true of this object uses a directory.
     virtual int tell ()
	 Return the current position in the file.
     virtual void seek (int)
	 Set the current position in the file.
     virtual int seekable ()
	 Return non-zero if seek does anything sensible.
     int has_directory () const
     virtual void list_objects (std::ostream &=ExEnv::out0())
	 List all the objects to the stream.
     void set_override (const Ref< KeyVal > &kv)
	 Give this StateIn a KeyVal object that is used to override values.
     const Ref< KeyVal > & override () const
	 Return the KeyVal used to override values.

     Public Member Functions inherited from sc::DescribedClass
     DescribedClass (const DescribedClass &)
     DescribedClass & operator= (const DescribedClass &)
     ClassDesc * class_desc () const  throw ()
	 This returns the unique pointer to the ClassDesc corresponding  to  the
	 given type_info object.
     const char * class_name () const
	 Return the name of the object's exact type.
     int class_version () const
	 Return the version of the class.
     virtual void print (std::ostream &=ExEnv::out0()) const
	 Print the object.

     Public Member Functions inherited from sc::RefCount
     int lock_ptr () const
	 Lock this object.
     int unlock_ptr () const
	 Unlock this object.
     void use_locks (bool inVal)
	 start and stop using locks on this object
     refcount_t nreference () const
	 Return the reference count.
     refcount_t reference ()
	 Increment the reference count and return the new count.
     refcount_t dereference ()
	 Decrement the reference count and return the new count.
     int managed () const
     void unmanage ()
	 Turn off the reference counting mechanism for this object.
     int managed () const
	 Return 1 if the object is managed. Otherwise return 0.

     Public Member Functions inherited from sc::Identity
     Identifier identifier ()
	 Return the Identifier for this argument.

   Protected Member Functions
     virtual int get_array_void (void *, int)
     int push_key (const char *key)
     void pop_key (int n)
     const char * key ()
     void get_directory ()
     int directory_location () const
     void find_and_get_directory ()
     virtual int getobject (Ref< SavableState > &)
	 This is used to restore an object.
     virtual int dir_getobject (Ref< SavableState > &, const char *name)
	 This restores objects that are listed in the directory.
     virtual void haveobject (int, const Ref< SavableState > &)
	 When storage has been allocated during object restoration, this routine
	 is  called  with the object reference number and the pointer to the new
	 storage so getpointer can find the data if it is referenced again.
     virtual void nextobject (int)
	 A call to nextobject followed by havepointer(int)  is	equiv  to  have-
	 pointer(int,void**);.
     virtual void haveobject (const Ref< SavableState > &)
     void have_classdesc ()
     int need_classdesc ()
     virtual int get (const ClassDesc **)
	 This restores ClassDesc's.

     Protected Member Functions inherited from sc::RefCount
     RefCount (const RefCount &)
     RefCount & operator= (const RefCount &)

   Protected Attributes
     Ref< KeyVal > override_
     TranslateDataIn * translate_
     std::map< int, StateInData > ps_
     int expected_object_num_
     std::map< ClassDescP, int > classidmap_
     std::map< int, StateClassData > classdatamap_
     int nextclassid_
     int node_to_node_
     int version_
     int date_
     char userid_ [9]
     char format_

   Friends
     class SavableState
     class TranslateDataIn

Detailed Description
     Restores objects that derive from SavableState.

Member Function Documentation
   virtual int sc::StateIn::get (char & r, const char * keyword = 0) [virtual]
     These restore data saved with StateOut's put. members.

     Reimplemented in sc::MsgStateRecv, and sc::StateInText.

   virtual int sc::StateIn::get (char *&) [virtual]
     These  restore  data  saved with StateOut's put. members. The data is allo-
     cated by StateIn.

     Reimplemented in sc::MsgStateRecv, and sc::StateInText.

   virtual int sc::StateIn::get (const ClassDesc **) [protected],  [virtual]
     This restores ClassDesc's. It will set the pointer to the	address  of  the
     static  ClassDesc	for  the class which has the same name as the class that
     had the ClassDesc that was saved by put(const ClassDesc*).

     Reimplemented in sc::MsgStateRecv, and sc::StateInText.

     Referenced by get().

   virtual int sc::StateIn::get_array_char (char * p, int size) [virtual]
     These restore data saved with StateOut's put. members.  The  data	must  be
     preallocated by the user.

     Reimplemented in sc::StateInText.

   virtual void sc::StateIn::get_header () [virtual]
     Read  in  the  header information. Changes the translation scheme if neces-
     sary.

   virtual int	sc::StateIn::getobject	(Ref<  SavableState  >	&)  [protected],
     [virtual]
     This  is  used to restore an object. It is called with the reference to the
     reference being restored. If the data being restored  has	previously  been
     restored, then the pointer being restored is set to a reference to the pre-
     viously restored object.

     Reimplemented in sc::StateInText.

   virtual int sc::StateIn::getstring (char *&) [virtual]
     This restores strings saved with StateOut::putstring.

     Reimplemented in sc::StateInText.

   virtual void sc::StateIn::list_objects (std::ostream & = ExEnv::out0()) [vir-
     tual]
     List  all	the objects to the stream. Only StateIn specializations with di-
     rectories can list objects.

   int sc::StateIn::node_to_node () const [inline]
     True if this is a node to node save/restore. This is for classes  that  try
     to  avoid saving databases to files that can otherwise be read in, but want
     to avoid reading the database from disk on all nodes.

   virtual void sc::StateIn::seek (int) [virtual]
     Set the current position in the file. The default implementation does noth-
     ing.

     Reimplemented in sc::BcastStateInBin, and sc::StateInBin.

   virtual int sc::StateIn::seekable () [virtual]
     Return non-zero if seek does anything sensible. The default  implementation
     returns 0.

     Reimplemented in sc::BcastStateInBin, and sc::StateInBin.

   virtual int sc::StateIn::tell () [virtual]
     Return the current position in the file.

     Reimplemented in sc::BcastStateInBin, and sc::StateInBin.

   virtual int sc::StateIn::use_directory () [virtual]
     Returns true of this object uses a directory.

     Reimplemented in sc::BcastStateInBin, and sc::StateInBin.

   virtual int sc::StateIn::version (const ClassDesc *) [virtual]
     Returns the version of the ClassDesc in the persistent object or -1 if info
     on the ClassDesc doesn't exist.

     Reimplemented in sc::MsgStateRecv.

Author
     Generated automatically by Doxygen for MPQC from the source code.

Version 2.3.1			 Thu Sep 3 2026 		  sc::StateIn(3)

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