nl_tokens: Calls onChange ( connected ) callback when connection is established or closed . If once is true then monitoring is stopped after the first connection .
pl_tokens: function monitorServerStatus ( host , port , once , onChange ) { const socket = <mask> . connect ( { host , port } ) ; let connected = true ; let reconnect = true ; socket . on ( 'connect' , ( ) => { connected = true ; onChange ( true ) ; if ( once ) { reconnect = false ; socket . destroy ( ) ; } } ) ; socket . on ( 'error' , ( ) => { } ) ; socket . on ( 'close' , err => { if ( reconnect ) { if ( connected ) { connected = false ; onChange ( false ) ; } setTimeout ( ( ) => socket . connect ( { host , port } ) , 500 ) ; } } ) ; return socket ; }