[ocf] Cannot get return value when first retrieve from a multiple resources Server on K64F

[qiaojingx]

Description

when first retrieve from a multiple resources ocfserver on K64F, no sensor value get. This issue is not reproduced on Arduino101.

Test Code

OcfMultiSensor.js

OcfMultiClient.js code:

var ocf = require('ocf');
var client = ocf.client;
var t1 = null;
ocf.start();

t1 = setInterval(function() {
client.findResources({ resourceType:"core.light" }).then(function(resource) {
    console.log("findResources 'core.light' was successful, deviceId=" + resource.deviceId);

    client.retrieve(resource.deviceId, {observable: false}).then(function(res) {
        console.log("light: " + res.properties.light);
    }, function(error) {
    });
}, function(error) {
    console.log("findResources() returned an error: " + error.name);
});

setTimeout(function() {
    client.findResources({ resourceType:"core.temp" }).then(function(resource) {
        console.log("findResources 'core.temp' was successful, deviceId=" + resource.deviceId);

        client.retrieve(resource.deviceId, {observable: false}).then(function(res) {
            console.log("temp: " + res.properties.temp);
        }, function(error) {
        });
    }, function(error) {
        console.log("findResources() returned an error: " + error.name);
    });
}, 5000);
}, 10000); 

Steps to Reproduction

1. make BOARD=frdm_k64f JS=samples/OcfMultiSensor.js
2. cp outdir/frdm_k64f/zephyr/zephyr.bin /media/<username>/MBED/
3. connect PC via Ethernet cable.
4. add router and address on PC

   ip -6 route add 2001:db8::/64 dev eno1
   ip addr add 2001:db8::2 dev eno1

5. ./outdir/linux/release/jslinux ../../OcfMultiClient.js --noexit

Actual Result

No sensor value is returned at the beginning.

Expected Result

Can get sensor value from the beginning.

Test Builds

Branch	Commit Id	Target Device	Test Date	Result
master	d09e4b3	FRDM_K64F	Jan 31, 2018	Fail
master	d09e4b3	Arduino101	Jan 31, 2018	Pass

Additional Information

[jimmy-huang]

I was able to see the res from k64f if I run OcfMultiServer.js and then OcfClient.js:

jimmy@jimmy-dev:~/projects/zephyrjs/zephyr.js (update-doc)$ ./outdir/linux/release/jslinux samples/OcfClient.js --noexit

Started OCF client findResources() was successful, deviceId=ocf://c9920b68-2ab7-4e7e-5169-346b073c448e retrieve() was successful, deviceId=ocf://c9920b68-2ab7-4e7e-5169-346b073c448e retrieve() was successful, deviceId=ocf://c9920b68-2ab7-4e7e-5169-346b073c448e retrieve() was successful, deviceId=ocf://c9920b68-2ab7-4e7e-5169-346b073c448e retrieve() was successful, deviceId=ocf://c9920b68-2ab7-4e7e-5169-346b073c448e retrieve() was successful, deviceId=ocf://c9920b68-2ab7-4e7e-5169-346b073c448e retrieve() was successful, deviceId=ocf://c9920b68-2ab7-4e7e-5169-346b073c448e retrieve() was successful, deviceId=ocf://c9920b68-2ab7-4e7e-5169-346b073c448e retrieve() was successful, deviceId=ocf://c9920b68-2ab7-4e7e-5169-346b073c448e retrieve() was successful, deviceId=ocf://c9920b68-2ab7-4e7e-5169-346b073c448e

There's no OcfMultiClient.js file, where is this client app?

[qiaojingx]

Yes, there is no OcfMultiClient.js file in zephyr.js, we created it ourselves for OcfMultiSensor.js testing. The code is in Test Code Section above.