veyron/examples/rockpaperscissors: New demo game
Add a demo game of rock-paper-scissors. There are three different roles
in the game:
1. Judge: A judge enforces the rules of the game and decides who the
winner is. At the end of the game, the judge reports the final
score to all the score keepers.
2. Player: A player can ask a judge to start a new game, it can
challenge another player, and it can play a game.
3. ScoreKeeper: A score keeper receives the final score for a game
after it ended.
Each node takes the role of player, judge, and score keeper.
When the process starts, it registers itself in the mount table as
"rps/player/<hostname>", "rps/judge/<hostname>", and
"rps/scorekeeper/<hostname>".
Then each player attempts to initiate a game with another player, first
by finding a judge to run the game, and then challenging the other
player.
The players keep playing forever.
Change-Id: I5d670808b2914faf7a2fabcfc242bf5be2c4928c
10 files changed
