#include <zipfl.h>

Inherits TSOut.

Public Member Functions
	TZipOut (const TStr &_FNm)

	~TZipOut ()

int	PutCh (const char &Ch)

int	PutBf (const void *LBf, const TSize &LBfL)

void	Flush ()

Public Member Functions inherited from TSOut
	TSOut ()

	TSOut (const TStr &Str)

virtual	~TSOut ()

void	EnableLnTrunc (const int &_MxLnLen)

void	DisableLnTrunc ()

virtual TFileId	GetFileId () const

int	PutMem (const TMem &Mem)

int	PutCh (const char &Ch, const int &Chs)

int	PutBool (const bool &Bool)

int	PutInt (const int &Int)

int	PutInt (const int &Int, const char *FmtStr)

int	PutUInt (const uint &Int)

int	PutUInt (const uint &Int, const char *FmtStr)

int	PutFlt (const double &Flt)

int	PutFlt (const double &Flt, const char *FmtStr)

int	PutStr (const char *CStr)

int	PutStr (const TChA &ChA)

int	PutStr (const TStr &Str, const char *FmtStr)

int	PutStr (const TStr &Str, const bool &ForceInLn=false)

int	PutStrLn (const TStr &Str, const bool &ForceInLn=false)

int	PutStrFmt (const char *FmtStr,...)

int	PutStrFmtLn (const char *FmtStr,...)

int	PutIndent (const int &IndentLev=1)

int	PutLn (const int &Lns=1)

int	PutDosLn (const int &Lns=1)

int	PutSep (const int &NextStrLen=0)

int	PutSepLn (const int &Lns=0)

void	SaveCs ()

void	SaveBf (const void *Bf, const TSize &BfL)

void	Save (const bool &Bool)

void	Save (const char &Ch)

void	Save (const uchar &UCh)

void	Save (const short &Short)

void	Save (const ushort &UShort)

void	Save (const int &Int)

void	Save (const uint &UInt)

void	Save (const int64 &Int)

void	Save (const uint64 &UInt)

void	Save (const double &Flt)

void	Save (const sdouble &SFlt)

void	Save (const ldouble &LFlt)

void	Save (const char *CStr, const TSize &CStrLen)

void	Save (const char *CStr)

void	Save (TSIn &SIn, const TSize &BfL=-1)

void	Save (const PSIn &SIn, const TSize &BfL=-1)

void	Save (const void *Bf, const TSize &BfL)

TSOut &	operator<< (const bool &Bool)

TSOut &	operator<< (const uchar &UCh)

TSOut &	operator<< (const char &Ch)

TSOut &	operator<< (const short &Sh)

TSOut &	operator<< (const ushort &USh)

TSOut &	operator<< (const int &Int)

TSOut &	operator<< (const uint &Int)

TSOut &	operator<< (const int64 &Int)

TSOut &	operator<< (const uint64 &UInt)

TSOut &	operator<< (const float &Flt)

TSOut &	operator<< (const double &Double)

TSOut &	operator<< (const long double &LDouble)

TSOut &	operator<< (const TSOutMnp &Mnp)

TSOut &	operator<< (TSOut &(*FuncPt)(TSOut &))

TSOut &	operator<< (TSIn &SIn)

TSOut &	operator<< (PSIn &SIn)

Public Member Functions inherited from TSBase
	TSBase (const TSStr &Nm)

virtual	~TSBase ()

virtual TStr	GetSNm () const

Static Public Member Functions
static PSOut	New (const TStr &FNm)

static bool	IsZipFNm (const TStr &FNm)
	Check whether the file extension of FNm is that of a compressed file (.gz, .7z, .rar, .zip, .cab, .arj. bzip2). More...

static bool	IsZipExt (const TStr &FNmExt)
	Check whether the file extension FNmExt is that of a compressed file (.gz, .7z, .rar, .zip, .cab, .arj. bzip2). More...

static TStr	GetCmd (const TStr &ZipFNm)
	Return a command-line string that is executed in order to decompress a file to standard output. More...

static PSOut	NewIfZip (const TStr &FNm)

Private Member Functions
void	FlushBf ()

void	CreateZipProcess (const TStr &Cmd, const TStr &ZipFNm)

	TZipOut ()

	TZipOut (const TZipOut &)

TZipOut &	operator= (const TZipOut &)

Static Private Member Functions
static void	FillFExtToCmdH ()

Private Attributes
FILE *	ZipStdinRd

FILE *	ZipStdinWr

char *	Bf

TSize	BfL

Static Private Attributes
static const TSize	MxBfL =4*1024

static TStrStrH	FExtToCmdH

Additional Inherited Members
Static Public Attributes inherited from TSOut
static const TPt< TSOut >	StdOut =PSOut(new TStdOut())

Protected Attributes inherited from TSBase
TCRef	CRef

TSStr	SNm

TCs	Cs

Detailed Description

Compressed File Output Stream. The class directly writes to a compressed file. This is eachieved by TZipFl outputing into a pipe from which 7ZIP then reads and compresses. The class requires 7ZIP to be installed on the machine. Go to http://www.7-zip.org to install the software. 7z (7z.exe) is an executable and can decompress the following formats: .gz, .7z, .rar, .zip, .cab, .arj. bzip2. The class TZIpOut expects that '7z' ('7z.exe') is in the working path. Note2: For 7z to work properly you need both the 7z executable and the directory 'Codecs'. Note3: Use TZipIn::SevenZipPath to set the path to 7z executable.

Definition at line 74 of file zipfl.h.

Constructor & Destructor Documentation

TZipOut::TZipOut ( )

private

TZipOut::TZipOut ( const TZipOut & )

private

TZipOut::TZipOut ( const TStr & _FNm )

Definition at line 345 of file zipfl.cpp.

                                 : TSBase(FNm.CStr()), TSOut(FNm), ZipStdinRd(NULL), ZipStdinWr(NULL), Bf(NULL), BfL(0){
   EAssertR(! FNm.Empty(), "Empty file-name.");
   #ifdef GLib_WIN
   // create pipes
   SECURITY_ATTRIBUTES saAttr;
   saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
   saAttr.bInheritHandle = TRUE;
   saAttr.lpSecurityDescriptor = NULL;
   // Create a pipe for the child process's STDOUT.
   EAssertR(CreatePipe(&ZipStdinRd, &ZipStdinWr, &saAttr, 0), "Stdout pipe creation failed");
   // Ensure the read handle to the pipe for STDOUT is not inherited.
   SetHandleInformation(ZipStdinWr, HANDLE_FLAG_INHERIT, 0);
   #else
   // no implementation necessary
   #endif
   CreateZipProcess(GetCmd(FNm), FNm);
   Bf=new char[MxBfL];  BfL=0;
 }

TZipOut::~TZipOut ( )

Definition at line 368 of file zipfl.cpp.

                   {
   if (BfL!=0) { FlushBf(); }
   #ifdef GLib_WIN
   if (ZipStdinWr != NULL) { EAssertR(CloseHandle(ZipStdinWr), "Closing write-end of pipe failed"); }
   if (ZipStdinRd != NULL) { EAssertR(CloseHandle(ZipStdinRd), "Closing read-end of pipe failed"); }
   #else
   if (ZipStdinWr != NULL) { EAssertR(pclose(ZipStdinWr) != -1, "Closing of the process failed"); }
   #endif
   if (Bf!=NULL) { delete[] Bf; }
 }

Member Function Documentation

void TZipOut::CreateZipProcess	(	const TStr &	Cmd,
		const TStr &	ZipFNm
	)

private

Definition at line 312 of file zipfl.cpp.

                                                                   {
   const TStr CmdLine = TStr::Fmt("%s %s", Cmd.CStr(), ZipFNm.CStr());
   #ifdef GLib_WIN
   PROCESS_INFORMATION piProcInfo;
   STARTUPINFO siStartInfo;
   ZeroMemory( &piProcInfo, sizeof(PROCESS_INFORMATION));
   ZeroMemory( &siStartInfo, sizeof(STARTUPINFO));
   siStartInfo.cb = sizeof(STARTUPINFO);
   siStartInfo.hStdInput = ZipStdinRd;
   siStartInfo.dwFlags |= STARTF_USESTDHANDLES;
   // Create the child process.
   const BOOL FuncRetn = CreateProcess(NULL,
     (LPSTR) CmdLine.CStr(),  // command line
     NULL,          // process security attributes
     NULL,          // primary thread security attributes
     TRUE,          // handles are inherited
     0,             // creation flags
     NULL,          // use parent's environment
     NULL,          // use parent's current directory
     &siStartInfo,  // STARTUPINFO pointer
     &piProcInfo);  // receives PROCESS_INFORMATION
   EAssertR(FuncRetn!=0, TStr::Fmt("Can not execute '%s'", CmdLine.CStr()).CStr());
   CloseHandle(piProcInfo.hProcess);
   CloseHandle(piProcInfo.hThread);
   #else
   ZipStdinWr = popen(CmdLine.CStr(),"w");
   if (ZipStdinWr == NULL) { // try using SevenZipPath
     ZipStdinWr = popen((TZipIn::SevenZipPath+"/"+CmdLine).CStr(), "r");
   }
   EAssertR(ZipStdinWr != NULL,  TStr::Fmt("Can not execute '%s'", CmdLine.CStr()).CStr());
   #endif
 }

void TZipOut::FillFExtToCmdH ( )

staticprivate

Definition at line 410 of file zipfl.cpp.

                              {
    // 7za compress: "a -y -bd -si{CompressedFNm}"
   #ifdef GLib_WIN
   const char* ZipCmd = "7z.exe a -y -bd -si";
   #else
   const char* ZipCmd = "7za a -y -bd -si";
   #endif
   if (FExtToCmdH.Empty()) {
     FExtToCmdH.AddDat(".gz",  ZipCmd);
     FExtToCmdH.AddDat(".7z",  ZipCmd);
     FExtToCmdH.AddDat(".rar", ZipCmd);
     FExtToCmdH.AddDat(".zip", ZipCmd);
     FExtToCmdH.AddDat(".cab", ZipCmd);
     FExtToCmdH.AddDat(".arj", ZipCmd);
     FExtToCmdH.AddDat(".bzip2", ZipCmd);
     FExtToCmdH.AddDat(".bz2", ZipCmd);
   }
 }

void TZipOut::Flush ( )

virtual

Implements TSOut.

Definition at line 396 of file zipfl.cpp.

                    {
   FlushBf();
   #ifdef GLib_WIN
   EAssertR(FlushFileBuffers(ZipStdinWr)!=0, "Can not flush file '"+GetSNm()+"'.");
   #else
   EAssertR(fflush(ZipStdinWr)==0, "Can not flush file '"+GetSNm()+"'.");
   #endif
 }

void TZipOut::FlushBf ( )

private

Definition at line 301 of file zipfl.cpp.

                       {
   #ifdef GLib_WIN
   DWORD BytesOut;
   EAssertR(WriteFile(ZipStdinWr, Bf, DWORD(BfL), &BytesOut, NULL)!=0, "Error writting to the file '"+GetSNm()+"'.");
   #else
   size_t BytesOut = fwrite(Bf, 1, BfL, ZipStdinWr);
   #endif
   EAssert(BytesOut == BfL);
   BfL = 0;
 }

TStr TZipOut::GetCmd ( const TStr & ZipFNm )

static

Return a command-line string that is executed in order to decompress a file to standard output.

Definition at line 429 of file zipfl.cpp.

                                        {
   if (FExtToCmdH.Empty()) FillFExtToCmdH();
   const TStr Ext = ZipFNm.GetFExt().GetLc();
   EAssertR(FExtToCmdH.IsKey(Ext), TStr::Fmt("Unsupported file extension '%s'", Ext.CStr()));
   return FExtToCmdH.GetDat(Ext)+ZipFNm.GetFMid();
 }

bool TZipOut::IsZipExt ( const TStr & FNmExt )

static

Check whether the file extension FNmExt is that of a compressed file (.gz, .7z, .rar, .zip, .cab, .arj. bzip2).

Definition at line 405 of file zipfl.cpp.

                                          {
   if (FExtToCmdH.Empty()) FillFExtToCmdH();
   return FExtToCmdH.IsKey(FNmExt);
 }

static bool TZipOut::IsZipFNm ( const TStr & FNm )

inlinestatic

Check whether the file extension of FNm is that of a compressed file (.gz, .7z, .rar, .zip, .cab, .arj. bzip2).

Definition at line 103 of file zipfl.h.

103 { return IsZipExt(FNm.GetFExt()); }

TStr::GetFExt

TStr GetFExt() const

Definition: dt.cpp:1421

TZipOut::IsZipExt

static bool IsZipExt(const TStr &FNmExt)

Check whether the file extension FNmExt is that of a compressed file (.gz, .7z, .rar, .zip, .cab, .arj. bzip2).

Definition: zipfl.cpp:405

PSOut TZipOut::New ( const TStr & FNm )

static

Definition at line 364 of file zipfl.cpp.

                                  {
   return PSOut(new TZipOut(FNm));
 }

static PSOut TZipOut::NewIfZip ( const TStr & FNm )

inlinestatic

Definition at line 108 of file zipfl.h.

108 { return IsZipFNm(FNm) ? New(FNm) : TFOut::New(FNm); }

TFOut

Definition: fl.h:319

TZipOut::New

static PSOut New(const TStr &FNm)

Definition: zipfl.cpp:364

TZipOut::IsZipFNm

static bool IsZipFNm(const TStr &FNm)

Check whether the file extension of FNm is that of a compressed file (.gz, .7z, .rar, .zip, .cab, .arj. bzip2).

Definition: zipfl.h:103

TZipOut& TZipOut::operator= ( const TZipOut & )

private

int TZipOut::PutBf	(	const void *	LBf,
		const TSize &	LBfL
	)

virtual

Implements TSOut.

Definition at line 384 of file zipfl.cpp.

                                                     {
   int LBfS=0;
   if (BfL+LBfL>MxBfL){
     for (TSize LBfC=0; LBfC<LBfL; LBfC++){
       LBfS+=PutCh(((char*)LBf)[LBfC]);}
   } else {
     for (TSize LBfC=0; LBfC<LBfL; LBfC++){
       LBfS+=(Bf[BfL++]=((char*)LBf)[LBfC]);}
   }
   return LBfS;
 }

int TZipOut::PutCh ( const char & Ch )

virtual

Implements TSOut.

Definition at line 379 of file zipfl.cpp.

                                 {
   if (BfL==MxBfL) {FlushBf();}
   return Bf[BfL++]=Ch;
 }

Member Data Documentation

char* TZipOut::Bf

private

Definition at line 83 of file zipfl.h.

TSize TZipOut::BfL

private

Definition at line 84 of file zipfl.h.

TStrStrH TZipOut::FExtToCmdH

staticprivate

Definition at line 77 of file zipfl.h.

const TSize TZipOut::MxBfL =4*1024

staticprivate

Definition at line 76 of file zipfl.h.

FILE* TZipOut::ZipStdinRd

private

Definition at line 81 of file zipfl.h.

FILE * TZipOut::ZipStdinWr

private

Definition at line 81 of file zipfl.h.

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

glib-core/zipfl.h
glib-core/zipfl.cpp

Public Member Functions

Static Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation