Class: AcpcTableManager::Maintainer

Inherits:
Object
  • Object
show all
Includes:
SimpleLogging
Defined in:
lib/acpc_table_manager/maintainer.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from SimpleLogging

#log, #log_with, #logger

Constructor Details

#initialize(logger_ = AcpcTableManager.new_log('table_manager.log')) ⇒ Maintainer

Returns a new instance of Maintainer.



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# File 'lib/acpc_table_manager/maintainer.rb', line 88

def initialize(logger_ = AcpcTableManager.new_log('table_manager.log'))
  @logger = logger_
  @table_queues = {}

  maintain!

  log(__method__)
end

Class Method Details

.kill_orphan_proxies(pids, pids_file) ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 44

def self.kill_orphan_proxies(pids, pids_file)
  new_pids = []
  pids.each do |pid_pair|
    proxy_running = AcpcDealer::process_exists?(pid_pair['proxy'])
    if proxy_running && AcpcDealer::process_exists?(pid_pair['dealer'])
      new_pids << pid_pair
    elsif proxy_running
      kill_process_if_running pid_pair['proxy'] do
        raise(
          StandardError.new(
            "Proxy process #{pid_pair['proxy']} couldn't be killed!"
          )
        )
      end
    else
      kill_process_if_running pid_pair['dealer'] do
        raise(
          StandardError.new(
            "Dealer process #{pid_pair['dealer']} couldn't be killed!"
          )
        )
      end
    end
  end
  new_pids
end

.kill_process_if_running(pid) ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 27

def self.kill_process_if_running(pid)
  begin
    AcpcDealer::kill_process pid
    sleep 1 # Give the process a chance to exit

    if AcpcDealer::process_exists?(pid)
      AcpcDealer::force_kill_process pid
      sleep 1 # Give the process a chance to exit

      if AcpcDealer::process_exists?(pid)
        yield if block_given?
      end
    end
  rescue Errno::ESRCH
  end
end

.proxy_pids(pids_file) ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 12

def self.proxy_pids(pids_file)
  if !File.exists?(pids_file)
    File.open(pids_file, 'w') do |pids_file|
      yield pids_file, {} if block_given?
    end
  else
    File.open(pids_file, 'r+') do |pids_file|
      pids = YAML.safe_load(pids_file) || {}
      pids_file.seek(0, IO::SEEK_SET)
      pids_file.truncate(0)
      yield pids_file, pids if block_given?
    end
  end
end

.proxy_pids_file ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 86

def self.proxy_pids_file() ::AcpcTableManager.config.proxy_pids_file end

.update_pids(pids) ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 71

def self.update_pids(pids)
  pids, pids_file = proxy_pids proxy_pids_file do |pids_file, pids|
    pids = kill_orphan_proxies pids, pids_file

    matches_started = yield if block_given?

    matches_started.each do |info|
      if info
        pids << {'dealer' => info[:dealer][:pid], 'proxy' => info[:proxy]}
      end
    end
    pids_file.write(YAML.dump(pids)) unless pids.empty?
  end
end

Instance Method Details

#check_match(match_id) ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 191

def check_match(match_id)
  log(__method__, {match_id: match_id})
  begin
    match = ::AcpcTableManager::Match.find match_id
  rescue Mongoid::Errors::DocumentNotFound
    log(
      __method__,
      {
        msg: "Match \"#{match_id}\" doesn't exist! Killing match.",
        match_id: match_id
      },
      Logger::Severity::ERROR
    )
    return kill_match!(match_id)
  end
  unless @table_queues[match.game_definition_key.to_s].running_matches[match_id]
    log(
      __method__,
      {
        msg: "Match \"#{match_id}\" in seat #{match.seat} doesn't have a proxy! Killing match.",
        match_id: match_id,
        match_name: match.name,
        last_updated_at: match.updated_at,
        running?: match.running?,
        last_slice_viewed: match.last_slice_viewed,
        last_slice_present: match.slices.length - 1
      },
      Logger::Severity::ERROR
    )
    return kill_match!(match_id)
  end
  proxy_pid = @table_queues[match.game_definition_key.to_s].running_matches[match_id][:proxy]

  log __method__, {
    match_id: match_id,
    running?: proxy_pid && AcpcDealer::process_exists?(proxy_pid)
  }

  unless proxy_pid && AcpcDealer::process_exists?(proxy_pid)
    log(
      __method__,
      {
        msg: "The proxy for match \"#{match_id}\" in seat #{match.seat} isn't running! Killing match.",
        match_id: match_id,
        match_name: match.name,
        last_updated_at: match.updated_at,
        running?: match.running?,
        last_slice_viewed: match.last_slice_viewed,
        last_slice_present: match.slices.length - 1
      },
      Logger::Severity::ERROR
    )
    kill_match!(match_id)
  end
end

#clean_up_matches! ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 142

def clean_up_matches!
  ::AcpcTableManager::Match.delete_matches_older_than! 1.day
end

#enqueue_match!(match_id, options) ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 146

def enqueue_match!(match_id, options)
  begin
    m = ::AcpcTableManager::Match.find match_id
  rescue Mongoid::Errors::DocumentNotFound

    log(
      __method__,
      {
        msg: "Match not found",
        match_id: match_id
      },
      Logger::Severity::ERROR
    )

    return kill_match!(match_id)
  else
    self.class().update_pids self.class().proxy_pids_file do
      @table_queues[m.game_definition_key.to_s].enqueue! match_id, options
      @table_queues[m.game_definition_key.to_s].check_queue!
    end
  end
end

#enqueue_waiting_matches(game_definition_key = nil) ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 97

def enqueue_waiting_matches(game_definition_key=nil)
  queues_touched = []
  if game_definition_key
    @table_queues[game_definition_key] ||= ::AcpcTableManager::TableQueue.new(game_definition_key)
    matches_to_check = @table_queues[game_definition_key].my_matches.not_running.and.not_started.to_a
    matches_to_check.each do |m|
      unless @table_queues[game_definition_key].running_matches[m.id.to_s]
        queues_touched << @table_queues[game_definition_key].enqueue!(m.id.to_s, m.dealer_options)
      end
    end
  else
    ::AcpcTableManager.exhibition_config.games.keys.each do |game_definition_key|
      queues_touched += enqueue_waiting_matches(game_definition_key)
    end
  end
  queues_touched
end

#kill_match!(match_id) ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 132

def kill_match!(match_id)
  log(__method__, match_id: match_id)

  @table_queues.each do |key, queue|
    log(__method__, {queue: key, match_id: match_id})

    queue.kill_match!(match_id)
  end
end

#maintain! ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 115

def maintain!
  log __method__, msg: "Starting maintenance"

  self.class().update_pids self.class().proxy_pids_file do
    queues_touched = enqueue_waiting_matches
    matches_started = []
    queues_touched.each do |queue|
      matches_started << queue.check_queue!
    end
    matches_started
  end

  clean_up_matches!

  log __method__, msg: "Finished maintenance"
end

#start_proxy!(match_id) ⇒ Object 



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# File 'lib/acpc_table_manager/maintainer.rb', line 169

def start_proxy!(match_id)
  begin
    match = ::AcpcTableManager::Match.find match_id
  rescue Mongoid::Errors::DocumentNotFound

    log(
      __method__,
      {
        msg: "Match not found",
        match_id: match_id
      },
      Logger::Severity::ERROR
    )

    return kill_match!(match_id)
  else
    self.class().update_pids self.class().proxy_pids_file do
      [@table_queues[match.game_definition_key.to_s].start_proxy(match)]
    end
  end
end