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Game cleaner implemented

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dogcatfee 2018-06-06 23:02:25 -07:00
parent c0a1548463
commit dac5a64a45
1 changed files with 72 additions and 46 deletions
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118
src/Go.cr
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@ -11,49 +11,52 @@ GAME_CACHE = {} of String => Go::Game
GAME_SAVE = "./game_saves.db" GAME_SAVE = "./game_saves.db"
def save_game(db, gameid, game) def save_game(db, gameid, game)
# Function: save_game # Function: save_game
# Parameters: db(String)[Unused] gameid(String) game(Go::Game) # Parameters: db(String)[Unused] gameid(String) game(Go::Game)
# Returns: None
turn, size, white_pass, black_pass, board = game.encode turn, size, white_pass, black_pass, board = game.encode
DB.open "sqlite3:./#{GAME_SAVE}" do |db| DB.open "sqlite3:./#{GAME_SAVE}" do |db|
# Create table if one does not exist, gameid is UNIQUE => No duplicates # Create table if one does not exist, gameid is UNIQUE => No duplicates
# db.exec "create table if not exists game_saves (gameid string, turn integer, size integer, white_pass string, black_pass string, time string, board string, UNIQUE(gameid) )" db.exec "create table if not exists game_saves (gameid string, turn integer, size integer, white_pass string, black_pass string, time string, board string, UNIQUE(gameid) )"
db.exec "create table if not exists game_saves (gameid string, turn integer, size integer, white_pass string, black_pass string, board string, UNIQUE(gameid) )"
# If duplicate => replace values, else => make new row for gameid # If duplicate => replace values, else => make new row for gameid
db.exec "insert or replace into game_saves values (?, ?, ?, ?, ?, ?)", gameid, turn.value, size, white_pass, black_pass, board db.exec "insert or replace into game_saves values (?, ?, ?, ?, ?, ?, ?)",
gameid, turn.value, size, white_pass, black_pass, Time.now.to_json, board
end end
end end
def save_all() def save_all(cache)
# Function: save_all # Function: save_all
# Parameters: None # Parameters: cache({(String),(Go::Game)})
GAME_CACHE.each do |game_hash| # Returns: None
cache.each do |game_hash|
gameid, game = game_hash gameid, game = game_hash
save_game("none", gameid, game) save_game("none", gameid, game)
end end
end end
def query_game(db, gameid) : Go::Game? def query_game(db, gameid) : Go::Game?
# Function: query_game # Function: query_game
# Parameters: db(String)[Unused] gameid(String) # Parameters: db(String)[Unused] gameid(String)
# Returns: (Go::Game) for a given gameid
turn = 0 turn = 0
size = Go::Size::Small size = Go::Size::Small
white_pass = "" white_pass = ""
black_pass = "" black_pass = ""
board = "" board = ""
begin begin
DB.open "sqlite3:./#{GAME_SAVE}" do |db| DB.open "sqlite3:./#{GAME_SAVE}" do |db|
# Query whole row where the gameid is found # Query whole row where the gameid is found
db.query "SELECT * FROM game_saves WHERE gameid = ?", gameid do |rs| db.query "SELECT turn,size,white_pass,black_pass,board FROM game_saves WHERE gameid = ?", gameid do |rs|
rs.each do rs.each do
id = rs.read(String) # Reduntant #id = rs.read(String) # Reduntant
turn = rs.read(Int32) turn = rs.read(Int32)
size = rs.read(Int32) size = rs.read(Int32)
white_pass = rs.read(String) white_pass = rs.read(String)
black_pass = rs.read(String) black_pass = rs.read(String)
board = rs.read(String) board = rs.read(String)
end
end end
end end
end
# New Go::Game object # New Go::Game object
game = Go::Game.new() game = Go::Game.new()
game.size = Go::Size.from_value(size) game.size = Go::Size.from_value(size)
@ -76,16 +79,50 @@ def query_game(db, gameid) : Go::Game?
end end
rescue rescue
# Catch bad query # Catch bad query
puts "DB query Failed" # puts "DB query Failed"
return nil return nil
end end
# Finished Go::Game object to return # Finished Go::Game object to return
return game return game
end end
def game_cleaner(cache)
# Function: game_cleaner
# Parameters: cache({(String),(Go::Game)})
# Returns: None
# Description: Cleans the database and memory of games older than 24 hours, every 2 hours
spawn do
loop do
gameid = ""
ntime = Time.now()
DB.open "sqlite3:./#{GAME_SAVE}" do |db|
# Time span, for the subtraction of two time objects
tspan = Time::Span.new(0,0,0)
db.query "SELECT time, gameid FROM game_saves" do |rs|
rs.each do
stime = Time.from_json(rs.read(String))
gameid = rs.read(String)
tspan = ntime - stime
end
end
if( tspan.hours > 24 || tspan.days > 0 )
# Delete game from database
db.exec("DELETE FROM game_saves WHERE gameid = ?", gameid)
# Delete game from memory
cache.delete(gameid)
puts "Game: #{gameid} deleted due to inactivity"
end
end
sleep 2.hour
end
end
end
def lookup_game(db, cache, id) : Go::Game? def lookup_game(db, cache, id) : Go::Game?
# Function: lookup_game # Function: lookup_game
# Parameters: db(String)[Unused] cache({(String), (Go::Game)}) id(String) # Parameters: db(String)[Unused] cache({(String), (Go::Game)}) id(String)
# Returns: None
# Description: Loads game data from memory, then attempts load from database
if game = cache[id]? if game = cache[id]?
return game return game
else else
@ -97,14 +134,17 @@ def lookup_game(db, cache, id) : Go::Game?
end end
def create_game(db, cache, game, id) def create_game(db, cache, game, id)
# Function: create_game # Function: create_game
# Parameters: db(String)[Unused] cache({(String), (Go::Game)}) game(Go::Game) id(String) # Parameters: db(String)[Unused] cache({(String), (Go::Game)}) game(Go::Game) id(String)
# Returns: None
cache[id] = game cache[id] = game
end end
def handle_message(id, game, socket, message) def handle_message(id, game, socket, message)
# Function: handle_message # Function: handle_message
# Parameters: id(String) game(Go::Game) socket() message() # Parameters: id(String) game(Go::Game) socket(WebSocket) message(String)
# Returns: None
# Description: Handle placement messages from the WebSocket
split_command = message.split(" ") split_command = message.split(" ")
command = split_command[0] command = split_command[0]
if command == "place" if command == "place"
@ -124,21 +164,6 @@ get "/" do |env|
render "src/Go/views/index.ecr", "src/Go/views/base.ecr" render "src/Go/views/index.ecr", "src/Go/views/base.ecr"
end end
get "/save" do |env|
GAME_CACHE.each do |game_hash|
gameid, game = game_hash
save_game("none", gameid, game)
end
end
get "/state" do |env|
GAME_CACHE.each do |game_hash|
gameid, game = game_hash
puts gameid
puts game.board
end
end
post "/game" do |env| post "/game" do |env|
game_id = env.params.body["id"]? game_id = env.params.body["id"]?
game_password = env.params.body["password"]? game_password = env.params.body["password"]?
@ -219,12 +244,13 @@ end
# spawn do # spawn do
# loop do # loop do
# sleep 10.minute # sleep 10.minute
# save_all() # save_all(GAME_CACHE)
# end # end
# end # end
game_cleaner(GAME_CACHE)
Kemal.run Kemal.run
# If exit is disabled in kemal.stop # If exit is disabled in kemal.stop
#at_exit do # For save on close
# save_all() # at_exit do
# puts "Saved" # save_all(GAME_CACHE)
#end # end