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| static PSIn  | New (const TStr &FNm) | 
|   | 
| static PSIn  | New (const TStr &FNm, bool &OpenedP) | 
|   | 
| 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...
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|   | 
| 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...
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|   | 
| static uint64  | GetFLen (const TStr &ZipFNm) | 
|   | Return the uncompressed size (in bytes) of the compressed file ZipFNm.  More...
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|   | 
| static PSIn  | NewIfZip (const TStr &FNm) | 
|   | 
Compressed File Input Stream. The class reads from a compressed file without explicitly uncompressing it. This is eachieved by running external 7ZIP program which uncompresses to standard output, which is then piped to TZipFl. 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 TZipIn expects that '7z' ('7z.exe') is in the working path. Make sure you can execute '7z e -y -bd -so <FILENAME>' For 7z to work properly you need both the 7z executable and the directory 'Codecs'. Use TZipIn::SevenZipPath to set the path to 7z executable.
NOTE: Current implementation of TZipIn supports only .zip format, other compression formats are not supported. 
Definition at line 15 of file zipfl.h.
 
      
        
          | TZipIn::TZipIn  | 
          ( | 
          const TStr &  | 
          FNm | ) | 
           | 
        
      
 
Definition at line 68 of file zipfl.cpp.
References Bf, BfC, BfL, CreateZipProcess(), TStr::CStr(), EAssertR, EFailR, TStr::Empty(), TFile::Exists(), FillBf(), FLen, TStr::Fmt(), GetCmd(), TStr::GetFExt(), GetFLen(), MxBfL, ZipStdoutRd, and ZipStdoutWr.
   75     printf(
"*** Error: file %s, compression format %s not supported\n", FNm.
CStr(), FNm.
GetFExt().
CStr());
 
   80   if (FLen == 0) { 
return; } 
 
   83   SECURITY_ATTRIBUTES saAttr;
 
   84   saAttr.nLength = 
sizeof(SECURITY_ATTRIBUTES);
 
   85   saAttr.bInheritHandle = TRUE;
 
   86   saAttr.lpSecurityDescriptor = NULL;
 
   88   const int PipeBufferSz = 32*1024;
 
   91   SetHandleInformation(
ZipStdoutRd, HANDLE_FLAG_INHERIT, 0);
 
static TStr GetCmd(const TStr &ZipFNm)
Return a command-line string that is executed in order to decompress a file to standard output...
 
static bool Exists(const TStr &FNm)
 
static TStr Fmt(const char *FmtStr,...)
 
#define EAssertR(Cond, MsgStr)
 
void CreateZipProcess(const TStr &Cmd, const TStr &ZipFNm)
 
 
 
 
  
  
      
        
          | TStr TZipIn::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 225 of file zipfl.cpp.
References TStr::CStr(), EAssertR, THash< TKey, TDat, THashFunc >::Empty(), FExtToCmdH, FillFExtToCmdH(), TStr::Fmt(), THash< TKey, TDat, THashFunc >::GetDat(), TStr::GetFExt(), TStr::GetLc(), and THash< TKey, TDat, THashFunc >::IsKey().
Referenced by TZipIn().
static TStrStrH FExtToCmdH
 
static void FillFExtToCmdH()
 
const TDat & GetDat(const TKey &Key) const 
 
static TStr Fmt(const char *FmtStr,...)
 
#define EAssertR(Cond, MsgStr)
 
bool IsKey(const TKey &Key) const 
 
 
 
 
Return the uncompressed size (in bytes) of the compressed file ZipFNm. 
Definition at line 232 of file zipfl.cpp.
References Bf, BfC, BfL, TStr::CStr(), EAssert, EAssertR, TStr::Fmt(), IAssert, TVec< TVal, TSizeTy >::Len(), MxBfL, SaveToErrLog(), TStr::SplitOnWs(), WrNotify(), ZipStdoutRd, and ZipStdoutWr.
  236   SECURITY_ATTRIBUTES saAttr;
 
  237   saAttr.nLength = 
sizeof(SECURITY_ATTRIBUTES);
 
  238   saAttr.bInheritHandle = TRUE;
 
  239   saAttr.lpSecurityDescriptor = NULL;
 
  241   const int PipeBufferSz = 32*1024;
 
  242   EAssertR(CreatePipe(&ZipStdoutRd, &ZipStdoutWr, &saAttr, PipeBufferSz), 
"Stdout pipe creation failed");
 
  244   SetHandleInformation(ZipStdoutRd, HANDLE_FLAG_INHERIT, 0);
 
  247   PROCESS_INFORMATION piProcInfo;
 
  248   STARTUPINFO siStartInfo;
 
  249   ZeroMemory( &piProcInfo, 
sizeof(PROCESS_INFORMATION));
 
  250   ZeroMemory( &siStartInfo, 
sizeof(STARTUPINFO));
 
  251   siStartInfo.cb = 
sizeof(STARTUPINFO);
 
  253   siStartInfo.dwFlags |= STARTF_USESTDHANDLES;
 
  255   const BOOL FuncRetn = CreateProcess(NULL, (LPSTR) CmdLine.
CStr(),
 
  256     NULL, NULL, TRUE, 0, NULL, NULL, &siStartInfo, &piProcInfo);
 
  258   CloseHandle(piProcInfo.hProcess);
 
  259   CloseHandle(piProcInfo.hThread); }
 
  262   FILE* ZipStdoutRd = popen(CmdLine.
CStr(), 
"r");
 
  263   if (ZipStdoutRd == NULL) { 
 
  269   const int BfSz = 32*1024;
 
  270   char* 
Bf = 
new char [BfSz];
 
  275   EAssert(ReadFile(ZipStdoutRd, Bf, 
MxBfL, &BytesRead, NULL) != 0);
 
  277   size_t BytesRead = fread(Bf, 1, 
MxBfL, ZipStdoutRd);
 
  279   EAssert(pclose(ZipStdoutRd) != -1);
 
  282   BfC = 0; Bf[
BfL] = 0;
 
  284   TStr Str(Bf);  
delete [] 
Bf;
 
  285   TStrV StrV; Str.SplitOnWs(StrV);
 
  286   int n = StrV.
Len()-1;
 
  287   while (n > 0 && ! StrV[n].IsPrefix(
"-----")) { n--; }
 
  293   return StrV[n-7].GetInt64();
 
TSizeTy Len() const 
Returns the number of elements in the vector. 
 
void SaveToErrLog(const char *MsgCStr)
 
static TStr Fmt(const char *FmtStr,...)
 
#define EAssertR(Cond, MsgStr)
 
void WrNotify(const char *CaptionCStr, const char *NotifyCStr)
 
Vector is a sequence TVal objects representing an array that can change in size. 
 
 
 
 
  
  
      
        
          | bool TZipIn::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 201 of file zipfl.cpp.
References THash< TKey, TDat, THashFunc >::Empty(), FExtToCmdH, FillFExtToCmdH(), and THash< TKey, TDat, THashFunc >::IsKey().
Referenced by IsZipFNm(), and TSsParser::TSsParser().
static TStrStrH FExtToCmdH
 
static void FillFExtToCmdH()
 
bool IsKey(const TKey &Key) const 
 
 
 
 
  
  
      
        
          | static bool TZipIn::IsZipFNm  | 
          ( | 
          const TStr &  | 
          FNm | ) | 
           | 
         
       
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inlinestatic   | 
  
 
Check whether the file extension of FNm is that of a compressed file (.gz, .7z, .rar, .zip, .cab, .arj. bzip2). 
Definition at line 56 of file zipfl.h.
References TStr::GetFExt(), and IsZipExt().
Referenced by TSnap::LoadDyNet(), TSnap::LoadDyNetGraphV(), and NewIfZip().
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).