fix: hold fs-plus at 2.9.3 for node 4 support

[ashleygwilliams]

see issue: https://github.com/atom/fs-plus/issues/38

2.10.0 of fs-plus breaks on Node 4 because it uses Proxy and Proxy is not defined

[soldair]

LGTM

[ashleygwilliams]

related: https://github.com/atom/fs-plus/pull/39

[soldair]

published to npm at v2.1.3

[cristina21r]

I have same problem with Proxy. node 4.4.3 npm 2.15.1

i'm trying to run this code:

/global require,setInterval,console / var opcua = require("node-opcua");

// Let's create an instance of OPCUAServer var server = new opcua.OPCUAServer({ port: 4334, // the port of the listening socket of the server resourcePath: "UA/MyLittleServer", // this path will be added to the endpoint resource name buildInfo : { productName: "MySampleServer1", buildNumber: "7658", buildDate: new Date(2014,5,2) } });

function post_initialize() { console.log("initialized"); function construct_my_address_space(server) {

    var addressSpace = server.engine.addressSpace;

    // declare a new object
    var device = addressSpace.addObject({
        organizedBy: addressSpace.rootFolder.objects,
        browseName: "MyDevice"
    });

    // add some variables 
    // add a variable named MyVariable1 to the newly created folder "MyDevice"
    var variable1 = 1;

    // emulate variable1 changing every 500 ms
    setInterval(function(){  variable1+=1; }, 500);

    addressSpace.addVariable({
        componentOf: device,
        browseName: "MyVariable1",
        dataType: "Double",
        value: {
            get: function () {
                return new opcua.Variant({dataType: opcua.DataType.Double, value: variable1 });
            }
        }
    });

    // add a variable named MyVariable2 to the newly created folder "MyDevice"
    var variable2 = 10.0;

    server.engine.addressSpace.addVariable({

        componentOf: device,

        nodeId: "ns=1;b=1020FFAA", // some opaque NodeId in namespace 4

        browseName: "MyVariable2",

        dataType: "Double",    

        value: {
            get: function () {
                return new opcua.Variant({dataType: opcua.DataType.Double, value: variable2 });
            },
            set: function (variant) {
                variable2 = parseFloat(variant.value);
                return opcua.StatusCodes.Good;
            }
        }
    });
    var os = require("os");
    /**
     * returns the percentage of free memory on the running machine
     * @return {double}
     */
    function available_memory() {
        // var value = process.memoryUsage().heapUsed / 1000000;
        var percentageMemUsed = os.freemem() / os.totalmem() * 100.0;
        return percentageMemUsed;
    }
    server.engine.addressSpace.addVariable({

        componentOf: device,

        nodeId: "ns=1;s=free_memory", // a string nodeID
        browseName: "FreeMemory",
        dataType: "Double",    
        value: {
            get: function () {return new opcua.Variant({dataType: opcua.DataType.Double, value: available_memory() });}
        }
    });
}
construct_my_address_space(server);
server.start(function() {
    console.log("Server is now listening ... ( press CTRL+C to stop)");
    console.log("port ", server.endpoints[0].port);
    var endpointUrl = server.endpoints[0].endpointDescriptions()[0].endpointUrl;
    console.log(" the primary server endpoint url is ", endpointUrl );
});

} server.initialize(post_initialize);

how could i fix the problem?