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| == Installing dependencies == | | ==== [[Install/Test/Uninstall - Redhat5/Centos5/Fedora15|Redhat/Fedora/Centos]] ==== |
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| Tested on Centos 5.2/Boost 1.38/Postgres 8.3/Gnu Compiler 4.1.2
| | ==== [[Install/Test/Uninstall - Ubuntu 10.04 LTS|Ubuntu/Debian]] ==== |
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| It might work with versions as far back as Boost 1.35 and Postgres 8.1 perhaps with minor tweaks.
| | ==== [[Install/Test/Uninstall - Suse 11.4|Suse]] ==== |
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| === Installing Boost ===
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| Required for complete build of Boost - but those bits of Boost may not actually be required by Exodus.
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| yum install python-devel
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| yum install bzip2-devel
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| Download it
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| wget http://downloads.sourceforge.net/boost/boost_1_38_0.tar.bz2?use_mirror=garr
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| Unpack it
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| tar xvf boost_1_38_0.tar.bz2
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| cd boost_1_38_0
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| Actually only the following parts are required but how to a partial build is unknown at the moment.
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| # Boost DateTime
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| # Boost FileSystem
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| # Boost IOstream
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| # Boost Interprocess
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| # Boost ProgramOptions
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| # Boost Regex
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| # Boost System
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| # Boost Thread
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| Become superuser to build and install it.
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| su
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| ./configure
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| make
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| make install
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| Add "/usr/local/lib" to the list of lib directories to ensure that the boost libs can be found.
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| nano /etc/ld.so.conf
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| Ensure the new config is operational.
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| ldconfig
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| Ensure boost includes can be found
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| ln -s /usr/local/include/boost-1_38/boost /usr/local/include/boost
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| Quit superuser
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| exit
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| === Building your own Boost libraries from source ===
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| http://shoddykid.blogspot.com/2008/07/getting-started-with-boost.html
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| === Installing Postgres ===
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| Version 8.3
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| yum install postgresql
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| or
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| sudo aptitude install postgresql-8.3
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| === Setting up Postgres for Exodus ===
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| become user postgres and get into postgres command prompt
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| sudo su - postgres
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| psql
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| create a user and database for exodus
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| CREATE ROLE exodus LOGIN
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| PASSWORD 'somesillysecret'
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| CREATEDB CREATEROLE;
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| CREATE DATABASE exodus
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| WITH ENCODING='UTF8'
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| OWNER=exodus;
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| #quit postgres command prompt and quite postgres user
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| \q
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| exit
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| Allow login from 127.0.0.1 using username/unencrypted password (instead of only logged-in username without password)
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| http://developer.postgresql.org/pgdocs/postgres/auth-pg-hba-conf.html
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| nano /var/lib/pgsql/data/pg_hba.conf
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| #host all all 127.0.0.1/32 ident sameuser
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| host all all 127.0.0.1/32 password
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| hostssl all all 0.0.0.0/0 password
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| service postgresql reload
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| === Installing g++ compiler ===
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| yum list|grep gcc
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| yum install gcc-c++.i386
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| === Installing Postgres development libraries ===
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| Look for all available postgres packages and if they are installed
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| yum list|grep postgres
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| yum install postgresql-devel
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| Locate postgres.h for interest
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| updatedb
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| locate postgres.h
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| == Downloading and Building Exodus ==
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| === Downloading Exodus ===
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| Make a folder for exodus
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| cd ~
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| mkdir exodus
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| cd exodus
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| Download the main trunk of Exodus
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| svn checkout http://svn.neosys.com/svn/trunk
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| === Building pgexodus ===
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| pgexodus.so is a shared library addin c function for postgres to perform sort/select/index functions otherwise it is not required.
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| Currently hand built without even a make file. standard configure/make using autoconf/automake will be available soon http://www.lrde.epita.fr/~adl/dl/autotools.pdf
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| Note that all routines are marked for "C linkage" in order to work with the postgres library "pq". For convenience they are all compiled under C++ since callexodus requires boost which is c++. The .c routines could equally well be compiled with the plain c compiler. The link stage must be done in c++ style in order to link to the c++ runtime library "rt".
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| cd ~/exodus/trunk/exodus/pgexodus/src
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| g++ -fpic -c pgexodus.c extract.c callexodus.cpp naturalorder.cpp pgnaturalorder.cpp -I `pg_config --includedir-server` -I /usr/local/include/boost-1_38
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| g++ -shared -o pgexodus.so pgexodus.o extract.o callexodus.o naturalorder.o pgnaturalorder.o -lrt -lpq
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| Check the build as follows:
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| ld pgexodus.so
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| Should give something like the following. These 8 references to the postgres library all seem to be resolved at runtime.
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| <pre>
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| pgexodus.so: undefined reference to `Float8GetDatum'
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| pgexodus.so: undefined reference to `pg_atoi'
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| pgexodus.so: undefined reference to `CurrentMemoryContext'
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| pgexodus.so: undefined reference to `pg_detoast_datum'
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| pgexodus.so: undefined reference to `pfree'
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| pgexodus.so: undefined reference to `elog_start'
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| pgexodus.so: undefined reference to `MemoryContextAlloc'
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| pgexodus.so: undefined reference to `elog_finish'
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| </pre>
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| Also check the following
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| ldd -u pgexodus.so
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| Should give something like:
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| <pre>
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| ./pgexodus.so: error: symbol lookup error: undefined symbol: CurrentMemoryContext (continued)
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| undefined symbol: CurrentMemoryContext (./pgexodus.so)
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| Unused direct dependencies:
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| /lib/librt.so.1
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| /usr/lib/libpq.so.5
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| /lib/libm.so.6
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| /lib/libgcc_s.so.1
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| </pre>
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| === Installing pgexodus ===
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| Copy the library to the postgres library folder
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| sudo cp pgexodus.so `pg_config --pkglibdir`
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| Register the c functions in postgres
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| sudo su - postgres
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| psql
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| \connect exodus
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| {{postgres function installation}}
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| Check the functions loaded properly
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| \df exodus*
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| Quit postgres command prompt and quite postgres user
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| \q
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| exit
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| For more information see http://www.postgresql.org/docs/8.1/static/app-psql.html
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| === Building libexodus ===
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| libexodus.so is a shared library that allows you to write c++ programs with the style and semantics of pick basic.
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| Currently hand built without even a make file. standard configure/make using autoconf/automake will be available soon http://www.lrde.epita.fr/~adl/dl/autotools.pdf
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| First copy the headers to a standard include path
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| #include files
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| sudo cp exo*.h /usr/include
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| sudo cp mv*.h /usr/include
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| Ignore three warnings in /boost/thread/tss.hpp included from mvdbpostgres.cpp
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| #get into the source code
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| cd ~/exodus/trunk/exodus/mv/src
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| #compile all cpp
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| g++ -fPIC -c *.cpp
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| #compile all c
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| gcc -fPIC -c *.c
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| #link and output the library file
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| g++ -shared -o libexodus.so.1.0 *.o -lc -lpq -lboost_filesystem-gcc41-mt -lboost_regex-gcc41-mt\
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| -lboost_thread-gcc41-mt -Wl,-soname,libexodus.so.1
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| === Installing libexodus ===
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| This will place the libraries and include files so that you can compile from anywhere on the system
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| #copy to a standard library folder
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| sudo cp libexodus.so.1.0 /usr/lib
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| #register the library file with the linux library cache
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| sudo ldconfig -v
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| #create the pointer to version 1
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| sudo ln -sf /usr/lib/libexodus.so.1 /usr/lib/libexodus.so
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| === Debugging ===
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| http://www.ibm.com/developerworks/library/l-shobj/
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| ldd libexodus.so.1.0|grep "not found"
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| ldd -u libexodus.so.1.0
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| === Testing libexodus ===
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| g++ test.cpp -lexodus
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| ./a.out
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| ldd -u a.out
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| == Building service ==
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| service is an incomplete multithreaded framework to support dynamic loading of library routines and serving a request/response queue.
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| www provides an optional web interface to the request/response queue. Windows only at the moment due to a single asp files but could be ported to php.
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| === Building service ===
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| cd ~/exodus/trunk/service/service
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| g++ -fPIC -c *.cpp -I/usr/local/include/boost-1_38 -I../../exodus/mv/src
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| g++ -shared -o libservice.so -lc *.o
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| g++ -o service main.cpp -I/usr/local/include/boost-1_38 -L. -L/usr/local/lib -lexodus -lpq -lboost_filesystem-gcc41-mt\
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| -lboost_regex-gcc41-mt -lboost_thread-gcc41-mt -L../../exodus/mv/src -I../../exodus/mv/src -L./ -lservice
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| === Running service ===
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| export LD_LIBRARY_PATH=../../exodus/mv/src:.:/usr/local/lib:$LD_LIBRARY_PATH
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| ./service
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| == Developing libexodus/service ==
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| === Committing your developments ===
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| First get a username and password by running the following unix command and send the output to an exodus subversion administrator eg steve.bush@neosys.com
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| htpasswd -nm YOURDESIREDUSERNAME
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| The administrator needs to run the following command as root and enter the encrypted pass (the bit AFTER the :) ignoring the warning about plain text password because it is already encrypted.
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| htpasswd -p /etc/apache2/dav_svn.passwd YOURDESIREDUSERNAME
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