Free global sources software for linux

Global Assassin is a text-based action game.

The Global Assassin game is a multiplayer, shoot-em-up game set in the first person, and yet its text-based.

The year is 2035, and robots have taken over the Earth. Most humans died during the invasion or were forced to flee the planet. You are part of a small resistance that has managed to survive underground and is now prepared to strike back.

As a trained assassin, your objective is to return to the Earths surface, stealthily move through the worlds major cities, and systematically rid the planet of its invaders.

The details of the game are as follows.

The battlefield consists of 20 cities around the globe.

These cities have been connected for your mission by an ellaborate portal system.

Use the portals to move between cities as you search for and destroy the robots.

You are armed with a gun, bullets, and grenades.

To successfully strike an invader, you and your target must occupy the same city at the precise moment you attack.

You can lay a mine in a given city, and the very next player to enter that city trips the mine.

You remain alive as long as you have health points.

Over time, you automatically earn back health points, bullets, and grenades.

This is a multiplayer game. You may or may not be the only assassin on the planet!

Global Javadoc Viewer is a tiny application that allows you to conveniently browse multiple Javadoc sets simultaneously, using a single packages/classes hierarchy tree.

Global Javadoc Viewer pre-alfa version is not configurable, but useful, it allows to browse the next javadoc API sets:

- From the Internet: j2se 1.5, j2ee 1.4, hibernate and some others.
- From the local filesystem, in a UN*X box: all javadoc sets installed to the /usr/share/javadoc/ directory

MySQL Global User Variables UDF is a MySQL extension to store persistent variables.

This shared library adds simple user functions to MySQL in order to keep persistent shared variables in memory. These variables and their values are available to all clients. Any data can be stored into these persistent variables, including BLOBs. Since updates are atomic and way faster than MEMORY tables, this is an easy and efficient way to handle counters and sequences.

Usage:

Storing a value

An unlimited number of user variables can be created, as long as memory is available.
The GLOBAL_STORE(, ) stores a new shared global variable.

Examples:

mysql> DO GLOBAL_STORE("online_users", 42);
mysql> DO GLOBAL_STORE("secret_key", "pajfUyfnd");

The GLOBAL_STORE() function always returns 1 unless an error occurred.

Fetching a value

Reading the value of a variable is the job of the GLOBAL_GET() function.
The value is returned, or NULL is the variable is undefined.

Example:

mysql> SELECT GLOBAL_GET("online_users;);
42

mysql> SELECT id FROM pxs WHERE secret_key = GLOBAL_GET("secret_key");
1

Atomic increments

A single function call can read the previous value, add an integer (that can be negative), and store the new value into the variable.

The function is GLOBAL_ADD(, ) and the return value is the new value of the variable.
Updates are always atomic, if the old value is 18 and you add 1, you will always get back 19.

Example:

mysql> DO GLOBAL_ADD("online_users", 1);
mysql> SELECT GLOBAL_ADD("online_users", -4);
39

If the value of a variable was a string, the new value is the increment:

mysql> SELECT GLOBAL_ADD("secret_key", 12);
12

Adding a value to an undefined variable returns NULL.
A handy variant is GLOBAL_ADDP(, ). GLOBAL_ADDP() is similar to GLOBAL_ADD() but returns the PREVIOUS value of the variable instead of the new one.

Example:

mysql> DO GLOBAL_SET("xxx", 10);
mysql> SELECT GLOBAL_ADDP("xxx", 1);
10
mysql> SELECT GLOBAL_ADDP("xxx", 1);
11

Installation:

On most systems, compiling and installing the library should be as simple as typing (as root):

make install

The shared library is installed as /usr/local/lib/udf_global_user_variables.so

If the base directory of your MySQL installation is not in /usr/local, just type:

make

and then copy udf_global_user_variables.so to the right location for UDFs on your system (maybe /usr/lib/).

The name of a variable is limited to 256 bytes. If that limit is too low for your specific application, just edit the MAX_NAME_LENGTH variable on top of the .c file and reinstall. Variable names can contain binary characters.

Values are limited to 65536 bytes. If that limit is too low for you, edit the MAX_VALUE_LENGTH variable and reinstall.

vars::global is a Perl module that tries to make global variables a little safer.

SYNOPSIS

# In the place/package where we want to create globals
use vars::global create => qw( $foo @bar %baz );

# Add some more global symbols
vars::global->create(qw( $hello @world %now ));

# Somewhere else, where we need to access those globals
use vars::global qw( $foo @bar %baz );

# Dont try to use globals that do not exist
use vars::global qw( $Foo ); # typo, croaks
use vars::global qw( @inexistent ); # we dont create by default
# use create as above

# You can also import and create new globals
use vars::global qw( $foo %baz ), create => qw( $hey @joe );

# If youre lazy, you can import all the globals defined so far
use vars::global :all;

This module lets you define global variables and gain a slight advantage over blind use of package variables.

The global variables live inside the vars::global package, with the names given by the user. Where the advantage? Its two-fold:

there is an import mechanism that lets you access the global variable without the need to fully qualify its name (i.e. using $foo instead of $vars::global::foo);
the import mechanism ensures that you can import only the global variables that have been explicitly declared so far, which reduces the possibility of a typo.
If you have already "created" the global variable $foo, the import operation is equivalent to do:
*{__PACKAGE__ . ::foo} = $vars::global::foo;
that is, the package variable in the current package is made an alias for the global variable.

The anti-typo check is simply obtained by doing a check before the above import.
Typical usage is as follows:

creation

Early in the module or in the program you create variables prepending the create word, as follows:

use vars::global create => qw( $foo @bar %baz );

access

In the modules where you need to access a given global variable, you can import them very simply:

use vars::global qw( $foo %baz ); # I dont need @bar here ;)

The creation step above automatically imports all the new globals into the current package.

GFS (Global File System) is a cluster file system. It allows a cluster of computers to simultaneously use a block device that is shared between them (with FC, iSCSI, NBD, etc...). GFS reads and writes to the block device like a local filesystem, but also uses a lock module to allow the computers coordinate their I/O so filesystem consistency is maintained. One of the nifty features of GFS is perfect consistency -- changes made to the filesystem on one machine show up immediately on all other machines in the cluster.

GFS consists of a set of kernel patches and userspace programs.
The GFS lock module lock_dlm depends on CMAN and DLM.
The GFS lock module lock_gulm depends on GULM.
The GFS lock module lock_nolock depends on nothing.
Some GFS tools depend on the iddev library.

Building and Installing

1. build and install from cluster tree
cd cluster
./configure --kernel_src=/path/to/kernel
make; make install

- This builds and installs kernel modules, libraries and user programs.

- Kernel modules can also be built within the original kernel source tree by applying the kernel patches from cman-kernel/patches, dlm-kernel/patches and gfs-kernel/patches.

2. build device mapper user space
cd device-mapper
./configure
make; make install

3. build lvm2/clvm
cd LVM2
./configure --with-clvmd --with-cluster=shared
make; make install
LVM2/scripts/clvmd_fix_conf.sh /usr/lib

Load kernel modules

depmod -a
modprobe dm-mod
modprobe gfs
modprobe lock_dlm

Modules that should be loaded: lock_dlm, dlm, cman, gfs, lock_harness and dm-mod if device-mapper was built as a module.

Startup procedure

Run these commands on each cluster node:

> ccsd - Starts the CCS daemon
> cman_tool join - Joins the cluster
> fence_tool join - Joins the fence domain (starts fenced)
> clvmd - Starts the CLVM daemon
> vgchange -aly - Activates LVM volumes (locally)
> mount -t gfs /dev/vg/lvol /mnt - Mounts a GFS file system

Shutdown procedure

Run these commands on each cluster node:

> umount /mnt - Unmounts a GFS file system
> vgchange -aln - Deactivates LVM volumes (locally)
> killall clvmd - Stops the CLVM daemon
> fence_tool leave - Leaves the fence domain (stops fenced)
> cman_tool leave - Leaves the cluster
> killall ccsd - Stops the CCS daemon

PostgreSQL is a highly-scalable, SQL compliant, open source object-relational database management system. With more than 15 years of development history, it is quickly becoming the de facto database for enterprise level open source solutions.
PostgreSQL is an object-relational database management system (ORDBMS) based on POSTGRES, Version 4.2, developed at the University of California at Berkeley Computer Science Department. POSTGRES pioneered many concepts that only became available in some commercial database systems much later.
PostgreSQL is an open-source descendant of this original Berkeley code. PostgreSQL supports SQL92 and SQL99.
Main features:
- complex queries
- foreign keys
- triggers
- views
- transactional integrity
- multiversion concurrency control
Additionally, PostgreSQL can be extended by the user in many ways, for example by adding new:
- data types
- functions
- operators
- aggregate functions
- index methods
- procedural languages
And because of the liberal license, PostgreSQL can be used, modified, and distributed by everyone free of charge for any purpose, be it private, commercial, or academic.

Sorcerer is a source-based Linux distribution for system administrators. The sources are downloaded directly from software authors homepages and mirrors.

Then, they are compiled with the architecture and optimizations that the system administrator specifies.

Finally, it is installed, tracked, and archived for easy removal and upgrades. Sorcerer has both command line and menu driven source mangement programs.