How to use LZMA SDK to create 7z

[flaviomarcio]

Hello, I would use 7z into a routine of data transmission, but I can not use lzma SDK, I can build up more pure lzma lzmalib.c but if I try to use lib 7z.h can not compile

Has anyone had any experience with lzma to give me support.

[high_flyer]

What is the compile error you get?

[flaviomarcio]

After you have create a new project and it adiocionei lzma920 the SDK, I have attached the directory ... / lzma920 / C / compiled and everything worked sinned after the content on the .. / lzma920/C/Util/7z/7zMain.ce include the main.cpp of my project and gave those errors that show now:


23:17:11: Running build steps for project compressfile7zsdk...
23:17:11: Configuration unchanged, skipping qmake step.
23:17:11: Starting: "D:\qt\qtcreator-2.4.0\mingw\bin\mingw32-make.exe"
D:/qt/qtcreator-2.4.0/mingw/bin/mingw32-make.exe -f Makefile.Debug
mingw32-make.exe[1]: Entering directory `D:/sistema/projetos/fonts/qt/suportware/developer/compressfile7zsdk-build-desktop-Qt_4_7_4__4_7_4w32__Debug'
g++ -c -g -frtti -fexceptions -mthreads -Wall -DUNICODE -DQT_LARGEFILE_SUPPORT -DQT_DLL -DQT_GUI_LIB -DQT_CORE_LIB -DQT_HAVE_MMX -DQT_HAVE_3DNOW -DQT_HAVE_SSE -DQT_HAVE_MMXEXT -DQT_HAVE_SSE2 -DQT_THREAD_SUPPORT -DQT_NEEDS_QMAIN -I"d:\qt\4.7.4w32\include\QtCore" -I"d:\qt\4.7.4w32\include\QtGui" -I"d:\qt\4.7.4w32\include" -I"d:\qt\lzma92\C" -I"d:\qt\4.7.4w32\include\ActiveQt" -I"debug" -I"." -I"..\compressfile7zsdk" -I"." -I"d:\qt\4.7.4w32\mkspecs\win32-g++" -o debug\main.o ..\compressfile7zsdk\main.cpp
..\compressfile7zsdk\main.cpp: In function 'SRes Utf16_To_Char(CBuf*, const UInt16*, int)':
..\compressfile7zsdk\main.cpp:121: error: invalid conversion from 'const UInt16*' to 'const WCHAR*'
..\compressfile7zsdk\main.cpp:121: error: initializing argument 3 of 'int WideCharToMultiByte(UINT, DWORD, const WCHAR*, int, CHAR*, int, const CHAR*, BOOL*)'
..\compressfile7zsdk\main.cpp: In function 'WRes MyCreateDir(const UInt16*)':
..\compressfile7zsdk\main.cpp:138: error: invalid conversion from 'const UInt16*' to 'const WCHAR*'
..\compressfile7zsdk\main.cpp:138: error: initializing argument 1 of 'BOOL CreateDirectoryW(const WCHAR*, _SECURITY_ATTRIBUTES*)'
..\compressfile7zsdk\main.cpp: In function 'WRes OutFile_OpenUtf16(CSzFile*, const UInt16*)':
..\compressfile7zsdk\main.cpp:163: error: invalid conversion from 'const UInt16*' to 'const WCHAR*'
..\compressfile7zsdk\main.cpp:163: error: initializing argument 2 of 'WRes OutFile_OpenW(CSzFile*, const WCHAR*)'
mingw32-make.exe[1]: Leaving directory `D:/sistema/projetos/fonts/qt/suportware/developer/compressfile7zsdk-build-desktop-Qt_4_7_4__4_7_4w32__Debug'
..\compressfile7zsdk\main.cpp: At global scope:
..\compressfile7zsdk\main.cpp:134: warning: 'WRes MyCreateDir(const UInt16*)' defined but not used
..\compressfile7zsdk\main.cpp:160: warning: 'WRes OutFile_OpenUtf16(CSzFile*, const UInt16*)' defined but not used
..\compressfile7zsdk\main.cpp:175: warning: 'SRes PrintString(const UInt16*)' defined but not used
..\compressfile7zsdk\main.cpp:187: warning: 'void UInt64ToStr(UInt64, char*)' defined but not used
..\compressfile7zsdk\main.cpp:223: warning: 'void ConvertFileTimeToString(const CNtfsFileTime*, char*)' defined but not used
..\compressfile7zsdk\main.cpp:268: warning: 'void GetAttribString(UInt32, Bool, char*)' defined but not used
mingw32-make.exe[1]: *** [debug/main.o] Error 1
mingw32-make.exe: *** [debug] Error 2
23:17:12: The process "D:\qt\qtcreator-2.4.0\mingw\bin\mingw32-make.exe" exited with code 2.
Error while building project compressfile7zsdk (target: Desktop)
When executing build step 'Make'

[high_flyer]

After you have create a new project and it adiocionei lzma920 the SDK, I have attached the directory ... / lzma920 / C / compiled and everything worked sinned after the content on the .. / lzma920/C/Util/7z/7zMain.ce include the main.cpp of my project and gave those errors that show now:

Can anyone understand what this text actually says??

post your mail.cpp - it seems you have include problems.

[flaviomarcio]

Sorry, my language is Portuguese-Brazil and google is not translated correctly into English.
The problem was solved.
It was created compress and decompress based on "main2" "lzmautil.c"

int compress(char *inFileName,char *outFileName)
{
 
    char rs[800] = { 0 };
  CFileSeqInStream inStream;
  CFileOutStream outStream;
  int res;
 
  FileSeqInStream_CreateVTable(&inStream);
  File_Construct(&inStream.file);
 
  FileOutStream_CreateVTable(&outStream);
  File_Construct(&outStream.file);
 
  {
    size_t t4 = sizeof(UInt32);
    size_t t8 = sizeof(UInt64);
    if (t4 != 4 || t8 != 8)
      return PrintError(rs, "Incorrect UInt32 or UInt64");
  }
 
  if (InFile_Open(&inStream.file, inFileName) != 0)
    return PrintError(rs, "Can not open input file");
 
    if (OutFile_Open(&outStream.file, outFileName ) != 0)
      return PrintError(rs, "Can not open output file");
 
 
    UInt64 fileSize;
    File_GetLength(&inStream.file, &fileSize);
    res = Encode(&outStream.s, &inStream.s, fileSize, rs);
 
    File_Close(&outStream.file);
    File_Close(&inStream.file);
 
  if (res != SZ_OK)
  {
    if (res == SZ_ERROR_MEM)
      return PrintError(rs, kCantAllocateMessage);
    else if (res == SZ_ERROR_DATA)
      return PrintError(rs, kDataErrorMessage);
    else if (res == SZ_ERROR_WRITE)
      return PrintError(rs, kCantWriteMessage);
    else if (res == SZ_ERROR_READ)
      return PrintError(rs, kCantReadMessage);
    return PrintErrorNumber(rs, res);
  }
  return 0;
}
 
int Decompress(char *inFileName,char *outFileName)
{
    char rs[800] = { 0 };
  CFileSeqInStream inStream;
  CFileOutStream outStream;
  int res;
  //Bool useOutFile = False;
 
  FileSeqInStream_CreateVTable(&inStream);
  File_Construct(&inStream.file);
 
  FileOutStream_CreateVTable(&outStream);
  File_Construct(&outStream.file);
 
    size_t t4 = sizeof(UInt32);
    size_t t8 = sizeof(UInt64);
    if (t4 != 4 || t8 != 8)
      return PrintError(rs, "Incorrect UInt32 or UInt64");
 
  if (InFile_Open(&inStream.file, inFileName) != 0)
    return PrintError(rs, "Can not open input file");
 
 
    if (OutFile_Open(&outStream.file, outFileName) != 0)
      return PrintError(rs, "Can not open output file");
 
 
 
    res = Decode(&outStream.s, &inStream.s);
 
  File_Close(&outStream.file);
  File_Close(&inStream.file);
 
  if (res != SZ_OK)
  {
    if (res == SZ_ERROR_MEM)
      return PrintError(rs, kCantAllocateMessage);
    else if (res == SZ_ERROR_DATA)
      return PrintError(rs, kDataErrorMessage);
    else if (res == SZ_ERROR_WRITE)
      return PrintError(rs, kCantWriteMessage);
    else if (res == SZ_ERROR_READ)
      return PrintError(rs, kCantReadMessage);
    return PrintErrorNumber(rs, res);
  }
  return 0;
}

int compress(char *inFileName,char *outFileName)
{

    char rs[800] = { 0 };
  CFileSeqInStream inStream;
  CFileOutStream outStream;
  int res;

  FileSeqInStream_CreateVTable(&inStream);
  File_Construct(&inStream.file);

  FileOutStream_CreateVTable(&outStream);
  File_Construct(&outStream.file);

  {
    size_t t4 = sizeof(UInt32);
    size_t t8 = sizeof(UInt64);
    if (t4 != 4 || t8 != 8)
      return PrintError(rs, "Incorrect UInt32 or UInt64");
  }

  if (InFile_Open(&inStream.file, inFileName) != 0)
    return PrintError(rs, "Can not open input file");

    if (OutFile_Open(&outStream.file, outFileName ) != 0)
      return PrintError(rs, "Can not open output file");


    UInt64 fileSize;
    File_GetLength(&inStream.file, &fileSize);
    res = Encode(&outStream.s, &inStream.s, fileSize, rs);

    File_Close(&outStream.file);
    File_Close(&inStream.file);

  if (res != SZ_OK)
  {
    if (res == SZ_ERROR_MEM)
      return PrintError(rs, kCantAllocateMessage);
    else if (res == SZ_ERROR_DATA)
      return PrintError(rs, kDataErrorMessage);
    else if (res == SZ_ERROR_WRITE)
      return PrintError(rs, kCantWriteMessage);
    else if (res == SZ_ERROR_READ)
      return PrintError(rs, kCantReadMessage);
    return PrintErrorNumber(rs, res);
  }
  return 0;
}

int Decompress(char *inFileName,char *outFileName)
{
    char rs[800] = { 0 };
  CFileSeqInStream inStream;
  CFileOutStream outStream;
  int res;
  //Bool useOutFile = False;

  FileSeqInStream_CreateVTable(&inStream);
  File_Construct(&inStream.file);

  FileOutStream_CreateVTable(&outStream);
  File_Construct(&outStream.file);

    size_t t4 = sizeof(UInt32);
    size_t t8 = sizeof(UInt64);
    if (t4 != 4 || t8 != 8)
      return PrintError(rs, "Incorrect UInt32 or UInt64");

  if (InFile_Open(&inStream.file, inFileName) != 0)
    return PrintError(rs, "Can not open input file");


    if (OutFile_Open(&outStream.file, outFileName) != 0)
      return PrintError(rs, "Can not open output file");



    res = Decode(&outStream.s, &inStream.s);

  File_Close(&outStream.file);
  File_Close(&inStream.file);

  if (res != SZ_OK)
  {
    if (res == SZ_ERROR_MEM)
      return PrintError(rs, kCantAllocateMessage);
    else if (res == SZ_ERROR_DATA)
      return PrintError(rs, kDataErrorMessage);
    else if (res == SZ_ERROR_WRITE)
      return PrintError(rs, kCantWriteMessage);
    else if (res == SZ_ERROR_READ)
      return PrintError(rs, kCantReadMessage);
    return PrintErrorNumber(rs, res);
  }
  return 0;
}

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#Now just call the main current project

#include "lzma920/C/Util/Lzma/LzmaUtil.c"
 
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    //MainWindow w;
    //w.show();
 
    char *inFileName="c:/dbforcacad001.db";
    char *outFileName="c:/dbforcacad001.lzma";
 
    compress(inFileName,outFileName);
 
    inFileName=outFileName;
    outFileName="c:/dbforcacad001.lzma.db";
 
    Decompress(inFileName,outFileName);
 
 
    //return a.exec();
}

#include "lzma920/C/Util/Lzma/LzmaUtil.c"


int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    //MainWindow w;
    //w.show();

    char *inFileName="c:/dbforcacad001.db";
    char *outFileName="c:/dbforcacad001.lzma";

    compress(inFileName,outFileName);

    inFileName=outFileName;
    outFileName="c:/dbforcacad001.lzma.db";

    Decompress(inFileName,outFileName);


    //return a.exec();
}

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