tex / fusecompress

FuseCompress (compressed filesystem in userspace)
  http://www.miio.net/fusecompress

We are not responsible for any badness that may happen to you during using
this software.

Todo:

Bugs:
  File becames unreadable when it hits not enought space condition. So
  be careful to really have enought free space on the disk to store all data.

Problems:
  Do NOT compile FuseCompress with g++-4.3.3! Strange threading problems
  (broken locking) were detected (thank you Steve!) when using this version of
  g++.

  There is a memory leak (not too big, user detects it after milions of
  copyied files) in 'file' package, more exactly in it's magic library, see:

  http://mx.gw.com/pipermail/file/2009/000306.html

==13747== 1,356 bytes in 135 blocks are definitely lost in loss record 9 of 12                                           
                                                  
==13747==    at 0x4C256AE: malloc (in /usr/lib64/valgrind/amd64-linux/vgpreload_memcheck.so)                             
                                                  
==13747==    by 0x725503F: __vasprintf_chk (in /lib64/libc-2.9.so)                                                       
                                                  
==13747==    by 0x7254ED2: __asprintf_chk (in /lib64/libc-2.9.so)                                                        
                                                  
==13747==    by 0x63C2993: file_printf (in /usr/lib64/libmagic.so.1.0.0)                                                 
                                                  
==13747==    by 0x63BBDC5: (within /usr/lib64/libmagic.so.1.0.0)                                                         
                                                  
==13747==    by 0x63BC6A7: file_softmagic (in /usr/lib64/libmagic.so.1.0.0)                                              
                                                  
==13747==    by 0x63C2B8A: file_buffer (in /usr/lib64/libmagic.so.1.0.0)                                                 
                                                  
==13747==    by 0x63B6104: magic_buffer (in /usr/lib64/libmagic.so.1.0.0)                                                
                                                  
==13747==    by 0x41F9CF: CompressedMagic::isNativelyCompressed(char const*, int) (CompressedMagic.cpp:140)              
                                                  
==13747==    by 0x42A44F: Compress::write(char const*, unsigned long, long) (Compress.cpp:361)                           
                                                  
==13747==    by 0x43B99E: Memory::write(bool) (Memory.cpp:203)                                                           
                                                  
==13747==    by 0x43BC77: Memory::merge(char const*) (Memory.cpp:53)                                                     
                                                  
==13747==                                                                                                                
                                                  

Requires:

  boost >= 1.33.1

  libz
  libbz2
  xz-4.999.9beta (lzma library from http://tukaani.org/xz/xz-4.999.9beta.tar.gz)
  liblzo2

Compile:

  Boost's libraries may be stored in /usr/lib64 on 64bit systems,
  configure script needs to be called with:

  ./configure --with-boost-libdir=/usr/lib64/

  Don't use --enable-debug flag. Build fails during linking with boost
  libraries.

  If you don't have pkg-tool installed, try following:

  FUSE_CFLAGS="-D_GNU_SOURCE -D_REENTRANT -D_POSIX_C_SOURCE=200112L -D_POSIX_SOURCE -D_SVID_SOURCE -D_BSD_SOURCE 
  -D_XOPEN_SOURCE=500 -pedantic -Wno-long-long -Wall -fpermissive -D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26" 
  FUSE_LIBS="-lfuse" ./configure --with-boost=/usr/include/ --with-boost-libdir=/usr/lib64

  If your boost library was compiled for 32bit system without support for long files (bigger than 2GiB)
  configure script prints this error message:
    Boost library compiled for 32bit architecture without long file support!

  It means that any program using this library is limited to work with files smaller than 2GiB.
  You can either ignore this problem by passing --enable-crippled_boost to FuseCompress' configure script
  or compile boost with long file support. In both cases, try to report this problem to authors of your
  Linux distribution.

  There are switches you can use to build boost library with long file support:

  ./bjam "define=_FILE_OFFSET_BITS=64" release --toolset=gcc --build-type=minimal --layout=system --libdir=/usr/lib/ 
  --prefix=/usr
  sudo ./bjam "define=_FILE_OFFSET_BITS=64" release --toolset=gcc --build-type=minimal --layout=system 
  --libdir=/usr/lib/ --includedir=/usr/include/boost --prefix=/usr install

Usage:

  See man pages for fusecompress and fusecompress_offline.

Author:

Milan Svoboda <milan.svoboda@centrum.cz> (author and project maintainer)

Feel free to contact me with suggestions and bug reports.