Module: Daemon::CommandsServer

Defined in:
lib/onapp/engine/commands_server.rb

Overview

Server, which listens for simple oneline commands on unix socket

Constant Summary

Class Method Summary (collapse)

Class Method Details

+ (Daemon::Callbacks) callbacks

Callbacks object

Returns:

See Also:



82
83
84
 
# File 'lib/onapp/engine/commands_server.rb', line 82

def self.callbacks
  @callbacks ||= Daemon::Callbacks.new(:reload)
end

+ (Array<Daemon::Utils::CommandsServer::UNIXServerClient]) clients

Returns clients for each socket

Returns:

See Also:



91
92
93
94
95
 
# File 'lib/onapp/engine/commands_server.rb', line 91

def self.clients
  Daemon.unix_sockets.map do |path|
    Daemon::Utils::CommandsServer::UNIXServerClient.new(path)
  end
end

+ (Object) start(server = Daemon.unix_socket)

Starts server on unix socket

Parameters:

  • server (String) (defaults to: Daemon.unix_socket) —

    Path to socket



43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
 
# File 'lib/onapp/engine/commands_server.rb', line 43

def self.start(server = Daemon.unix_socket)
  Daemon.logger.info("Starting Server on #{server}")

  Daemon::Utils::CommandsServer.start!(server) do |c|
    c.on('online?') do
      Daemon.logger.debug "[commands-server] online?"
      { online: EM.reactor_running? }
    end

    c.on('redis_alive?') do
      Daemon.logger.debug "[commands-server] redis_alive?"
      { online: ((Daemon.redis.ping == "PONG") rescue false) }
    end

    c.on('em_debug') do
      Daemon.logger.debug "[commands-server] em_debug"
      {
        threadpool: EM.threadpool,
        threadqueue: EM.instance_variable_get(:@threadqueue)
      }
    end

    c.on('reload') do
      Daemon.logger.debug "[commands-server] reload"
      callbacks.invoke_reload
      {reloaded: true}
    end

    c.on('_evaluate') do
      Daemon::Utils::Evaluator.new('/tmp/onapp-engine-eval', KEY).call
    end
  end
end