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28 //////////////////////////////////////////////////////////////////////////
29 Compressed Repository readme
30 ============================
32 Filename: readme.compressed_repository
33 Authors: Karl Schopmeyer, Jim Wunderlich,
36 PEP 214 added the capability added the capability to utilize
37 compression algorithms on the repository. The compressed repository
38 is approximately 70% smaller than a regular xml text based repository.
39 This allows significant disk space savings a also results in shorter
42 The compression logic is installed as a conditionally compiled option.
43 To enable the compressed repository functionality:
45 2. define PEGASUS_ENABLE_COMPRESSED_REPOSITORY=true in the environment
51 libz is used in the compression logic so it must be installed in
52 a standard location prior to enabling the compressed repository
57 http://www.sourceforge.net
58 http://gnuwin32.sourceforge.net/packages/zlib.htm
59 http://www.winimage.com/zLibDll/
60 http://www.gzip.org/zlib/
62 LIBZ INSTALLATION ON WINDOWS PLATFORMS:
63 --------------------------------------
64 The standard libz install is:
65 "Program Files"\GnuWin32\include
67 "Program Files"\GnuWin32\lib
69 "Program Files"\GnuWin32\bin
72 These are the locations used by the windows libz package
73 available on www.sourceforge.net specifically at
74 http://gnuwin32.sourceforge.net/packages/zlib.htm.
76 The make file specifies these GnuWin32 directories (include and lib)
77 for the compilation of the CIMRepository. The CIMserver.exe will use
78 the zlib1.dll and expects to find it in one of the search path directories.
80 The directory containing the zlib1.dll library must be in the search path.
81 You may include the Gnuwin/bin directory in your search path or
82 alternatively you may move zlib1.dll to another directory that is already
86 LIBZ INSTALLATION ON UNIX PLATFORMS:
87 ------------------------------------
88 Install zlib.h & zconf.h in the standard system includes directory.
89 Install libz.a in the standard systems library directory.
90 Install zlib1.dll in the standard executables directory
96 To enable the compressed repository functionality
97 define PEGASUS_ENABLE_COMPRESSED_REPOSITORY in the environment,
98 prior to building the tree. Then build the whole source tree.
100 set PEGASUS_ENABLE_COMPRESSED_REPOSITORY=on
101 export PEGASUS_ENABLE_COMPRESSED_REPOSITORY=on
107 With the compression code enabled and compiled:
108 - All repositories built will be in the compressed format by default.
109 - all repository formats can be read.
110 - all repository formats can be written.
111 To build a non compressed repository with compression enabled:
112 set PEGASUS_COMPRESS_REPSOITORY to "build_non_compresed".
113 This is used by the CompareXmlCompressed repository test.
115 export PEGASUS_ENABLE_COMPRESSED_REPOSITORY=on
116 export PEGASUS_ENABLE_COMPRESSED_REPOSITORY=build_non_compressed
117 set PEGASUS_ENABLE_COMPRESSED_REPOSITORY=on
118 set PEGASUS_ENABLE_COMPRESSED_REPOSITORY=build_non_compressed
123 If PEGASUS_ENABLE_COMPRESSED_REPOSITORY is defined then the CompareXmlCompressed
124 test is run. If it is not defined then the CompareXmlCompressed is not run.
126 However if you have the zlibs installed and want to normally test
127 everything with a regular repository but want to run the
128 CompareXmlCompressed test then define PEGASUS_ENABLE_COMPRESSED_REPOSITORY_TEST.
129 This will cause the test to run, it will recompile the CIMRepository for
130 compression, run the test and then recompile CIMRepository for