Provided by: libsc-doc_2.3.1-21_all 
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.
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
havepointer(int,void**);.
virtual void haveobject (const Ref< SavableState > &)
void have_classdesc ()
int need_classdesc ()
virtual int get (const ClassDesc **)
This restores ClassDesc's.
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 *&) [virtual]
These restore data saved with StateOut's put. members. The data is allocated 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 necessary.
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 previously restored object.
Reimplemented in sc::StateInText.
virtual void sc::StateIn::list_objects (std::ostream & = ExEnv::out0()) [virtual]
List all the objects to the stream. Only StateIn specializations with directories 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 nothing.
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.
Author
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