TFRnd Class Reference

#include <fl.h>

Collaboration diagram for TFRnd:

Public Member Functions
	TFRnd (const TStr &_FNm, const TFAccess &FAccess, const bool &CreateIfNo=true, const int &_HdLen=-1, const int &_RecLen=-1)
	~TFRnd ()
TStr	GetFNm () const
void	SetHdRecLen (const int &_HdLen, const int &_RecLen)
void	SetFPos (const int &FPos)
void	MoveFPos (const int &DFPos)
int	GetFPos ()
int	GetFLen ()
bool	Empty ()
bool	Eof ()
void	SetRecN (const int &RecN)
int	GetRecN ()
int	GetRecs ()
void	GetBf (void *Bf, const TSize &BfL)
void	PutBf (const void *Bf, const TSize &BfL)
void	Flush ()
void	GetHd (void *Hd)
void	PutHd (const void *Hd)
void	GetRec (void *Rec, const int &RecN=-1)
void	PutRec (const void *Rec, const int &RecN=-1)
void	PutCs (const TCs &Cs)
TCs	GetCs ()
void	PutCh (const char &Ch)
void	PutCh (const char &Ch, const int &Chs)
char	GetCh ()
void	PutUCh (const uchar &UCh)
uchar	GetUCh ()
void	PutInt (const int &Int)
int	GetInt ()
void	PutUInt (const uint &UInt)
uint	GetUInt ()
void	PutStr (const TStr &Str)
TStr	GetStr (const int &StrLen)
TStr	GetStr (const int &MxStrLen, bool &IsOk)
void	PutSIn (const PSIn &SIn, TCs &Cs)
PSIn	GetSIn (const int &SInLen, TCs &Cs)

Static Public Member Functions
static PFRnd	New (const TStr &FNm, const TFAccess &FAccess, const bool &CreateIfNo=true, const int &HdLen=-1, const int &RecLen=-1)
static TStr	GetStrFromFAccess (const TFAccess &FAccess)
static TFAccess	GetFAccessFromStr (const TStr &Str)

Private Member Functions
void	RefreshFPos ()
	TFRnd (const TFRnd &)
TFRnd &	operator= (const TFRnd &)

Private Attributes
TCRef	CRef
TFileId	FileId
TSStr	FNm
bool	RecAct
int	HdLen
int	RecLen

Friends
class	TPt< TFRnd >

Detailed Description

Definition at line 491 of file fl.h.

Constructor & Destructor Documentation

TFRnd::TFRnd ( const TFRnd &  )

private

TFRnd::TFRnd	(	const TStr &	_FNm,
		const TFAccess &	FAccess,
		const bool &	CreateIfNo = true,
		const int &	_HdLen = -1,
		const int &	_RecLen = -1
	)

Definition at line 766 of file fl.cpp.

References TSStr::CStr(), EAssertR, faAppend, faCreate, Fail, faRdOnly, faUpdate, FileId, FNm, HdLen, RecAct, RecLen, and SEEK_END.

                                                               :
  FileId(NULL), FNm(_FNm.CStr()),
  RecAct(false), HdLen(_HdLen), RecLen(_RecLen){
  RecAct=(HdLen>=0)&&(RecLen>0);
  switch (FAccess){
    case faCreate: FileId=fopen(FNm.CStr(), "w+b"); break;
    case faUpdate: FileId=fopen(FNm.CStr(), "r+b"); break;
    case faAppend: FileId=fopen(FNm.CStr(), "r+b");
      if (FileId!=NULL){fseek(FileId, SEEK_END, 0);} break;
    case faRdOnly: FileId=fopen(FNm.CStr(), "rb"); break;
    default: Fail;
  }
  if ((FileId==NULL)&&(CreateIfNo)){
    FileId=fopen(FNm.CStr(), "w+b");}
  EAssertR(FileId!=NULL, "Can not open file '"+_FNm+"'.");
}

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TFRnd::~TFRnd

(

)

Definition at line 784 of file fl.cpp.

References EAssertR, FileId, and FNm.

             {
  EAssertR(fclose(FileId)==0, "Can not close file '"+TStr(FNm)+"'.");
}

Member Function Documentation

bool TFRnd::Empty ( )

inline

Definition at line 519 of file fl.h.

Referenced by TGBlobBs::TGBlobBs().

{return GetFLen()==0;}

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bool TFRnd::Eof ( )

inline

Definition at line 520 of file fl.h.

{return GetFPos()==GetFLen();}

void TFRnd::Flush

(

)

Definition at line 851 of file fl.cpp.

References EAssertR, FileId, and FNm.

Referenced by TGBlobBs::DelBlob(), TGBlobBs::PutBlob(), TGBlobBs::TGBlobBs(), and TGBlobBs::~TGBlobBs().

                 {
  EAssertR(fflush(FileId)==0, "Can not flush file '"+TStr(FNm)+"'.");
}

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void TFRnd::GetBf	(	void *	Bf,
		const TSize &	BfL
	)

Definition at line 837 of file fl.cpp.

References EAssertR, FileId, FNm, and RefreshFPos().

Referenced by GetSIn(), and GetStr().

                                           {
  RefreshFPos();
  EAssertR(
   fread(Bf, 1, BfL, FileId)==BfL,
   "Error reading file '"+TStr(FNm)+"'.");
}

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char TFRnd::GetCh ( )

inline

Definition at line 543 of file fl.h.

Referenced by TBlobBs::AssertBlobState(), and TBlobBs::GetBlobState().

{char Ch; GetBf(&Ch, sizeof(Ch)); return Ch;}

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TCs TFRnd::GetCs ( )

inline

Definition at line 540 of file fl.h.

Referenced by TGBlobBs::FNextBlobPt(), and TGBlobBs::GetBlob().

{TCs Cs; GetBf(&Cs, sizeof(Cs)); return Cs;}

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TFAccess TFRnd::GetFAccessFromStr ( const TStr &  Str )

static

Definition at line 917 of file fl.cpp.

References faAppend, faCreate, faRdOnly, faRestore, faUndef, faUpdate, and TStr::GetUc().

                                                {
  TStr UcStr=Str.GetUc();
  if (UcStr=="CREATE"){return faCreate;}
  if (UcStr=="UPDATE"){return faUpdate;}
  if (UcStr=="APPEND"){return faAppend;}
  if (UcStr=="READONLY"){return faRdOnly;}
  if (UcStr=="RESTORE"){return faRestore;}

  if (UcStr=="NEW"){return faCreate;}
  if (UcStr=="CONT"){return faUpdate;}
  if (UcStr=="CONTINUE"){return faUpdate;}
  if (UcStr=="REST"){return faRestore;}
  if (UcStr=="RESTORE"){return faRestore;}
  return faUndef;
}

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int TFRnd::GetFLen

(

)

Definition at line 810 of file fl.cpp.

References EAssertR, FileId, FNm, GetFPos(), SEEK_END, and SetFPos().

Referenced by TGBlobBs::FNextBlobPt(), GetRecs(), GetStr(), and TGBlobBs::PutBlob().

                  {
  int FPos=GetFPos();
  EAssertR(
   fseek(FileId, 0, SEEK_END)==0,
   "Error seeking into file '"+TStr(FNm)+"'.");
  int FLen=GetFPos(); SetFPos(FPos); return FLen;
}

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TStr TFRnd::GetFNm

(

)

const

Definition at line 788 of file fl.cpp.

References TSStr::CStr(), and FNm.

                         {
  return FNm.CStr();
}

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int TFRnd::GetFPos

(

)

Definition at line 804 of file fl.cpp.

References EAssertR, FileId, and FNm.

Referenced by TGBlobBs::DelBlob(), TGBlobBs::FNextBlobPt(), GetFLen(), GetRecN(), GetStr(), TGBlobBs::PutBlob(), and TGBlobBs::TGBlobBs().

                  {
  int FPos= (int) ftell(FileId);
  EAssertR(FPos!=-1, "Error seeking into file '"+TStr(FNm)+"'.");
  return FPos;
}

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void TFRnd::GetHd ( void *  Hd )

inline

Definition at line 530 of file fl.h.

References IAssert.

Referenced by TFRec< THd, TRec >::GetHd().

                      {IAssert(RecAct);
    int FPos=GetFPos(); SetFPos(0); GetBf(Hd, HdLen); SetFPos(FPos);}

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int TFRnd::GetInt ( )

inline

Definition at line 547 of file fl.h.

Referenced by TGBlobBs::DelBlob(), TGBlobBs::FNextBlobPt(), TGBlobBs::GetBlob(), TBlobBs::GetBlockLenV(), TBlobBs::GetFFreeBlobPtV(), TBlobBs::GetMxSegLen(), and TGBlobBs::PutBlob().

{int Int; GetBf(&Int, sizeof(Int)); return Int;}

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void TFRnd::GetRec ( void *  Rec, const int &  RecN = -1  )

inline

Definition at line 534 of file fl.h.

References IAssert.

Referenced by TFRec< THd, TRec >::GetRec().

                                            {
    IAssert(RecAct); if (RecN!=-1){SetRecN(RecN);} GetBf(Rec, RecLen);}

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int TFRnd::GetRecN

(

)

Definition at line 823 of file fl.cpp.

References EAssertR, FNm, GetFPos(), HdLen, IAssert, RecAct, and RecLen.

Referenced by TFRec< THd, TRec >::GetRecN().

                  {
  IAssert(RecAct);
  int FPos=GetFPos()-HdLen;
  EAssertR(FPos%RecLen==0, "Invalid position in file'"+TStr(FNm)+"'.");
  return FPos/RecLen;
}

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int TFRnd::GetRecs

(

)

Definition at line 830 of file fl.cpp.

References EAssertR, FNm, GetFLen(), HdLen, IAssert, RecAct, and RecLen.

Referenced by TFRec< THd, TRec >::GetRecs().

                  {
  IAssert(RecAct);
  int FLen=GetFLen()-HdLen;
  EAssertR(FLen%RecLen==0, "Invalid length of file'"+TStr(FNm)+"'.");
  return FLen/RecLen;
}

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PSIn TFRnd::GetSIn	(	const int &	SInLen,
		TCs &	Cs
	)

Definition at line 898 of file fl.cpp.

References GetBf(), and TCs::GetCsFromBf().

Referenced by TGBlobBs::FNextBlobPt(), and TGBlobBs::GetBlob().

                                         {
  char* Bf=new char[BfL];
  GetBf(Bf, BfL);
  Cs=TCs::GetCsFromBf(Bf, BfL);
  PSIn SIn=PSIn(new TMIn(Bf, BfL, true));
  return SIn;
}

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TStr TFRnd::GetStr

(

const int &

StrLen

)

Definition at line 879 of file fl.cpp.

References EAssertR, FNm, GetBf(), and TCh::NullCh.

Referenced by TBlobBs::AssertBlobBsStateStr(), TBlobBs::AssertVersionStr(), TBlobBs::GetBlockLenV(), TBlobBs::GetFFreeBlobPtV(), and TBlobBs::GetMxSegLen().

                                   {
  TStr Str;
  char* CStr=new char[StrLen+1];
  GetBf(CStr, StrLen+1);
  EAssertR(CStr[StrLen+1-1]==TCh::NullCh, "Error reading file '"+TStr(FNm)+"'.");
  Str=CStr;
  delete[] CStr;
  return Str;
}

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TStr TFRnd::GetStr	(	const int &	MxStrLen,
		bool &	IsOk
	)

Definition at line 868 of file fl.cpp.

References GetBf(), GetFLen(), GetFPos(), and TCh::NullCh.

                                               {
  IsOk=false; TStr Str;
  if (GetFPos()+StrLen+1<=GetFLen()){
    char* CStr=new char[StrLen+1];
    GetBf(CStr, StrLen+1);
    if (CStr[StrLen+1-1]==TCh::NullCh){IsOk=true; Str=CStr;}
    delete[] CStr;
  }
  return Str;
}

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TStr TFRnd::GetStrFromFAccess ( const TFAccess &  FAccess )

static

Definition at line 906 of file fl.cpp.

References faAppend, faCreate, Fail, faRdOnly, faRestore, and faUpdate.

                                                    {
  switch (FAccess){
    case faCreate: return "Create";
    case faUpdate: return "Update";
    case faAppend: return "Append";
    case faRdOnly: return "ReadOnly";
    case faRestore: return "Restore";
    default: Fail; return TStr();
  }
}

uchar TFRnd::GetUCh ( )

inline

Definition at line 545 of file fl.h.

Referenced by TBlobPt::Load().

{uchar UCh; GetBf(&UCh, sizeof(UCh)); return UCh;}

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uint TFRnd::GetUInt ( )

inline

Definition at line 549 of file fl.h.

Referenced by TBlobBs::AssertBlobTag(), TBlobPt::Load(), and TBlobPt::LoadAddr().

{uint UInt; GetBf(&UInt, sizeof(UInt)); return UInt;}

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void TFRnd::MoveFPos

(

const int &

DFPos

)

Definition at line 798 of file fl.cpp.

References EAssertR, FileId, FNm, and SEEK_CUR.

Referenced by TGBlobBs::FNextBlobPt(), and TGBlobBs::GetBlob().

                                    {
  EAssertR(
   fseek(FileId, DFPos, SEEK_CUR)==0,
   "Error seeking into file '"+TStr(FNm)+"'.");
}

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static PFRnd TFRnd::New ( const TStr &  FNm, const TFAccess &  FAccess, const bool &  CreateIfNo = true, const int &  HdLen = -1, const int &  RecLen = -1  )

inlinestatic

Definition at line 505 of file fl.h.

Referenced by TGBlobBs::TGBlobBs().

                                             {
    return new TFRnd(FNm, FAccess, CreateIfNo, HdLen, RecLen);}

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TFRnd& TFRnd::operator= ( const TFRnd &  )

private

void TFRnd::PutBf	(	const void *	Bf,
		const TSize &	BfL
	)

Definition at line 844 of file fl.cpp.

References EAssertR, FileId, FNm, and RefreshFPos().

Referenced by PutCh(), PutSIn(), and PutStr().

                                                 {
  RefreshFPos();
  EAssertR(
   fwrite(Bf, 1, BfL, FileId)==BfL,
   "Error writting to the file '"+TStr(FNm)+"'.");
}

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void TFRnd::PutCh ( const char &  Ch )

inline

Definition at line 541 of file fl.h.

Referenced by TGBlobBs::DelBlob(), TGBlobBs::PutBlob(), and TBlobBs::PutBlobState().

{PutBf(&Ch, sizeof(Ch));}

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void TFRnd::PutCh	(	const char &	Ch,
		const int &	Chs
	)

Definition at line 855 of file fl.cpp.

References PutBf().

                                               {
  if (Chs>0){
    char* CStr=new char[Chs];
    for (int ChN=0; ChN<Chs; ChN++){CStr[ChN]=Ch;}
    PutBf(CStr, Chs);
    delete[] CStr;
  }
}

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void TFRnd::PutCs ( const TCs &  Cs )

inline

Definition at line 539 of file fl.h.

Referenced by TGBlobBs::PutBlob().

{PutBf(&Cs, sizeof(Cs));}

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void TFRnd::PutHd ( const void *  Hd )

inline

Definition at line 532 of file fl.h.

References IAssert.

Referenced by TFRec< THd, TRec >::PutHd().

                            {IAssert(RecAct);
    int FPos=GetFPos(); SetFPos(0); PutBf(Hd, HdLen); SetFPos(FPos);}

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void TFRnd::PutInt ( const int &  Int )

inline

Definition at line 546 of file fl.h.

Referenced by TGBlobBs::PutBlob(), TBlobBs::PutBlockLenV(), TBlobBs::PutFFreeBlobPtV(), and TBlobBs::PutMxSegLen().

{PutBf(&Int, sizeof(Int));}

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void TFRnd::PutRec ( const void *  Rec, const int &  RecN = -1  )

inline

Definition at line 536 of file fl.h.

References IAssert.

Referenced by TFRec< THd, TRec >::PutRec().

                                                  {
    IAssert(RecAct); if (RecN!=-1){SetRecN(RecN);} PutBf(Rec, RecLen);}

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void TFRnd::PutSIn	(	const PSIn &	SIn,
		TCs &	Cs
	)

Definition at line 889 of file fl.cpp.

References TSIn::GetBf(), TCs::GetCsFromBf(), TSIn::Len(), and PutBf().

Referenced by TGBlobBs::PutBlob().

                                          {
  int BfL=SIn->Len();
  char* Bf=new char[BfL];
  SIn->GetBf(Bf, BfL);
  Cs=TCs::GetCsFromBf(Bf, BfL);
  PutBf(Bf, BfL);
  delete[] Bf;
}

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void TFRnd::PutStr

(

const TStr &

Str

)

Definition at line 864 of file fl.cpp.

References TStr::CStr(), TStr::Len(), and PutBf().

Referenced by TBlobBs::PutBlobBsStateStr(), TBlobBs::PutBlockLenV(), TBlobBs::PutFFreeBlobPtV(), TBlobBs::PutMxSegLen(), and TBlobBs::PutVersionStr().

                                 {
  PutBf(Str.CStr(), Str.Len()+1);
}

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void TFRnd::PutUCh ( const uchar &  UCh )

inline

Definition at line 544 of file fl.h.

Referenced by TBlobPt::Save().

{PutBf(&UCh, sizeof(UCh));}

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void TFRnd::PutUInt ( const uint &  UInt )

inline

Definition at line 548 of file fl.h.

Referenced by TBlobBs::PutBlobTag(), TBlobPt::Save(), and TBlobPt::SaveAddr().

{PutBf(&UInt, sizeof(UInt));}

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void TFRnd::RefreshFPos ( )

private

Definition at line 760 of file fl.cpp.

References EAssertR, FileId, FNm, and SEEK_CUR.

Referenced by GetBf(), and PutBf().

                       {
  EAssertR(
   fseek(FileId, 0, SEEK_CUR)==0,
   "Error seeking into file '"+TStr(FNm)+"'.");
}

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void TFRnd::SetFPos

(

const int &

FPos

)

Definition at line 792 of file fl.cpp.

References EAssertR, FileId, FNm, and SEEK_SET.

Referenced by TGBlobBs::DelBlob(), TGBlobBs::FNextBlobPt(), TGBlobBs::GetBlob(), GetFLen(), TGBlobBs::PutBlob(), SetRecN(), TGBlobBs::TGBlobBs(), and TGBlobBs::~TGBlobBs().

                                  {
  EAssertR(
   fseek(FileId, FPos, SEEK_SET)==0,
   "Error seeking into file '"+TStr(FNm)+"'.");
}

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void TFRnd::SetHdRecLen ( const int &  _HdLen, const int &  _RecLen  )

inline

Definition at line 512 of file fl.h.

                                                         {
    HdLen=_HdLen; RecLen=_RecLen; RecAct=(HdLen>=0)&&(RecLen>0);}

void TFRnd::SetRecN

(

const int &

RecN

)

Definition at line 818 of file fl.cpp.

References HdLen, IAssert, RecAct, RecLen, and SetFPos().

Referenced by TFRec< THd, TRec >::SetRecN().

                                  {
  IAssert(RecAct);
  SetFPos(HdLen+RecN*RecLen);
}

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Friends And Related Function Documentation

friend class TPt< TFRnd >

friend

Definition at line 491 of file fl.h.

Member Data Documentation

TCRef TFRnd::CRef

private

Definition at line 491 of file fl.h.

TFileId TFRnd::FileId

private

Definition at line 493 of file fl.h.

Referenced by Flush(), GetBf(), GetFLen(), GetFPos(), MoveFPos(), PutBf(), RefreshFPos(), SetFPos(), TFRnd(), and ~TFRnd().

TSStr TFRnd::FNm

private

Definition at line 494 of file fl.h.

Referenced by Flush(), GetBf(), GetFLen(), GetFNm(), GetFPos(), GetRecN(), GetRecs(), GetStr(), MoveFPos(), PutBf(), RefreshFPos(), SetFPos(), TFRnd(), and ~TFRnd().

int TFRnd::HdLen

private

Definition at line 496 of file fl.h.

Referenced by GetRecN(), GetRecs(), SetRecN(), and TFRnd().

bool TFRnd::RecAct

private

Definition at line 495 of file fl.h.

Referenced by GetRecN(), GetRecs(), SetRecN(), and TFRnd().

int TFRnd::RecLen

private

Definition at line 496 of file fl.h.

Referenced by GetRecN(), GetRecs(), SetRecN(), and TFRnd().

---

The documentation for this class was generated from the following files:

• glib-core/fl.h
• glib-core/fl.cpp