Module: ProcessWanker::NetApi

Includes:
Log
Defined in:
lib/net/net_api.rb

Constant Summary

Constants included from Log

Log::DEBUG, Log::ERROR, Log::INFO, Log::WARN

Class Method Summary collapse

Methods included from Log

debug, error, info, log, set_level, warn

Class Method Details

.execute(cmd, connection) ⇒ Object

execute a command from a remote client. called from the client’s read thread.



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# File 'lib/net/net_api.rb', line 49

def execute(cmd,connection)

  Log::info("received command #{cmd.inspect} from #{connection.user}")

  # execute
  if(cmd[:cmd] == :reload)
  
    ServiceMgr.instance.reload_config=true
    
    # wait for service manager to tick
    ticks=ServiceMgr.instance.tick_count
    sleep(0.5) while(ServiceMgr.instance.tick_count-ticks < 2)
  
  elsif(cmd[:cmd] == :debug)
    
    cls={}
    GC.start
    ObjectSpace.each_object do |o|
      cls[o.class.name] ||= 0
      cls[o.class.name] += 1
    end
    return({ :counts => cls })
    
  elsif(cmd[:cmd] == :terminate)
  
    ServiceMgr.instance.terminate=true
    connection.inform("terminating")
    return(nil)
  
  elsif([:stop,:restart,:start,:ignore].include?(cmd[:cmd]))
    
    # get hash of services    
    services=ServiceMgr::instance.match_services(cmd[:spec] || "all")
  
    threads=[]
    services.keys.sort.each do |sn|
    
      service=services[sn]
      
      if(cmd[:sequential])
        execute_cmd_single(cmd,service,connection)
        sleep(cmd[:sequential])
      else
        threads << Thread.new do 
          ProcessWanker::with_logged_rescue("execute_cmd_single") do
            execute_cmd_single(cmd,service,connection)
          end
        end
      end        
      
    end
    
    threads.each { |t| t.join }

  end
  
  # construct response
  services ||= ServiceMgr::instance.match_services(cmd[:spec] || "all")
  
  resp={ :services => {} }
  services.keys.sort.each do |sn|
    service=services[sn]
    resp[:services][sn] =
    {
      :name        =>    service.name,
      :group_name  =>   service.group_name,
      :tags        =>    service.params[:tags],
      :want_state  =>   service.want_state,
      :show_state  =>   service.show_state,
      :suppress    =>    service.suppress
    }
  end
  resp
end

.execute_cmd_single(cmd, service, connection) ⇒ Object

execute a command from a remote client. called from the client’s read thread.



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# File 'lib/net/net_api.rb', line 133

def execute_cmd_single(cmd,service,connection)

  connection.inform("send #{cmd[:cmd].inspect} to #{service.name}")

  want={
    :start    =>  :up,
    :stop     =>  :down,
    :restart  => :restart,
    :ignore   => :ignore
  }[cmd[:cmd]]
  if(want)
    Log::debug("sending #{want} to #{service.name}")
    service.set_want_state(want)
  end
  
  wait=cmd[:wait]
  return(false) if(!wait)
  start_time=Time.now
  
  # wait for service manager to tick at least once
  ticks=ServiceMgr.instance.tick_count
  sleep(0.5) while(ServiceMgr.instance.tick_count == ticks)

  return(true) if(want == :ignore)
  

  # wait for process to be in desired state
  while(service.current_state != service.want_state || service.want_state == :restart)
    sleep(0.5)
    
    # timeout?
    if((Time.now - start_time) >= wait)
      connection.inform("timed out waiting for #{service.name}")
      return(false)
    end
  end
  
  true
end