remotable | little decorator that simplify invoking functions | Runtime Evironment library
kandi X-RAY | remotable Summary
kandi X-RAY | remotable Summary
A small and pretty way to declare javascript functions that may be invoked elsewhere, such as on a Node.JS server, a Web Worker, a Service Worker or another iframe of alternate origin. This is a work in progress. Code is complete but not tested at all. Documentation lies within this readme.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of remotable
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QUESTION
I am trying to call a remote API function in Delphi:
...ANSWER
Answered 2020-Aug-12 at 06:18The immediate cause of your Access Violation is that getBalance1 of type getBalance is not created.
All CLASSes in Delphi need to be created, usually via a CONSTRUCTOR named Create. As you don't implicitly create the getBalance1 variable, it contains a random value, and you cannot (safely) access its content.
So, before you start using the getBalance1 variable, you need to create it, as in:
QUESTION
From https://developer.android.com/guide/components/bound-services.html:
If your service is private to your own application and runs in the same process as the client (which is common), you should create your interface by extending the Binder class and returning an instance of it from onBind(). The client receives the Binder and can use it to directly access public methods available in either the Binder implementation or the Service.
This is the preferred technique when your service is merely a background worker for your own application. The only reason you would not create your interface this way is because your service is used by other applications or across separate processes.
If you need your interface to work across different processes, you can create an interface for the service with a Messenger...
This seems to imply you wouldn't use Binder for inter-process communication, but IBinder documentation says the opposite:
Base interface for a remotable object, the core part of a lightweight remote procedure call mechanism designed for high performance when performing in-process and cross-process calls. This interface describes the abstract protocol for interacting with a remotable object. Do not implement this interface directly, instead extend from Binder.
The key IBinder API is transact() matched by Binder.onTransact(). These methods allow you to send a call to an IBinder object and receive a call coming in to a Binder object, respectively. This transaction API is synchronous, such that a call to transact() does not return until the target has returned from Binder.onTransact(); this is the expected behavior when calling an object that exists in the local process, and the underlying inter-process communication (IPC) mechanism ensures that these same semantics apply when going across processes.
And Binder documentation:
You can, however, derive directly from Binder to implement your own custom RPC protocol or simply instantiate a raw Binder object directly to use as a token that can be shared across processes.
This class is just a basic IPC primitive...
Many other pages also mention binders in IPC context. What am I misunderstanding?
...ANSWER
Answered 2017-Jul-17 at 13:00IBinder provides base interface for remotable object.
Binder is an implementation of IBinder that provides the standard support creating a local implementation of remotable an object.
When both services and clients are running in same process, simply extending Binder and returning instance of the subclass of Binder is enough to communicate with service by binding to it as Binder is an implementation of IBinder that provides the standard support creating a local implementation of remotable an object.
When service is running in separate process and service's client can be running in any other process, we need to implement IBinder and provide implementation that provides support for remote implementation of remotable object. This can be achieved in one of two ways:
Using AIDL
Using AIDL, we can write an interface which we would like to expose. aidl tool then can parse this file and auto-generate Stub and some boiler plate code which is common for all apps for IPC. We can then extend Interface.Stub to provide implementation on service side.
Clients can include this AIDL file in their projects and code for IPC is auto-generated by aidl tool. Now, client can bind to your service and communicate using the interface declared in the AIDL file.
Using Messenger
Messenger is a reference to a Handler, which others can use to send messages to it. This allows for the implementation of message-based communication across processes, by creating a Messenger pointing to a Handler in one process, and handing that Message to another process. This IPC is internally implemented using AIDL itself. Here is the IMessenger.aidl interface which Messenger uses internally to expose contract that clients can use to communicate to host process.
Summary
IBinder can be used for both in-process and inter-process communication. When using it for inter-process communication, just expose the interface using AIDL.
QUESTION
I'm having a problem where a certain import fails to work when compiling directly, but works okay after saving the source on VS Code.
If I delete the node_modules/.cache folder and execute the command:
ANSWER
Answered 2020-Mar-02 at 13:56Managed to fix everything by setting "esModuleInterop": true on tsconfig.json and effecting the required imports as getParamNames from 'get-param-names'.
After that, both vue-cli and es-node-dev started building the code consistently; in addition, Jest also required a bit more of type information on its unit tests, but worked okay, afterwards.
QUESTION
I'm trying to do distributed tests using JMeter 5.1.1. I used manual from here, but have problem with specifying port for connection from server(slave) to client(master). When I'm using client.rmi.localport
in jmeter.properties on master the following error appears:
ERROR o.a.j.u.JMeterUtils: Error in rconfigure() method java.rmi.MarshalException: error marshalling arguments; nested exception is: java.io.NotSerializableException: org.apache.jmeter.JMeter$ListenToTest
I was able to manage with other ports, only this one gives me trouble. I'm using nonGUI mode. How can I fix this/specify port?
Logs from master:
[...]
ERROR o.a.j.e.ConvertListeners: RemoteException occurred while replacing Remotable item. java.rmi.server.ExportException: Listen failed on port: 4453; nested exception is: java.io.IOException: Could not bind to XXX/XXX.XXX.XXX.XXX using port 4453
[...]
Caused by: java.io.IOException: Could not bind to XXX/XXX.XXX.XXX.XXX using port 4453 at org.apache.jmeter.rmi.SSLRMIServerSocketFactory.createServerSocket(SSLRMIServerSocketFactory.java:139) ~[ApacheJMeter_core.jar:5.1.1 r1855137] at sun.rmi.transport.tcp.TCPEndpoint.newServerSocket(Unknown Source) ~[?:1.8.0_231] ... 22 more Caused by: java.net.BindException: Address already in use: JVM_Bind
[...]
ERROR o.a.j.e.ClientJMeterEngine: Error in rconfigure() method java.rmi.MarshalException: error marshalling arguments; nested exception is: java.io.NotSerializableException: org.apache.jmeter.JMeter$ListenToTest at sun.rmi.server.UnicastRef.invoke(Unknown Source) ~[?:1.8.0_231]
[...]
jmeter.properties on master:
[...]
remote_hosts=XXX.XXX.XXX.XXX:4454
[...]
client.rmi.localport=4451
[...]
jmeterengine.nongui.port=4448
[...]
Edit: Changed JMeter to version 5.2 due to problem in comments.
...ANSWER
Answered 2019-Nov-15 at 15:23Disabling the secure channel among client and servers helped me - I had this error no more and could specify ports. However I suggest doing it ONLY if your environment (both client and servers) work in private network.
QUESTION
I am trying to run a simple test on a remote JMeter 4.0 server from a JMeter 4.0 client.
Both are configured to use the same rmi_keystore.jks. The server starts fine and listens on RMI and Server Engine ports.
When I try to start the client if fails with the java.net.BindException: Address already in use (Bind failed) error. netstat shows that no process is listening on this port.
ANSWER
Answered 2018-Jun-11 at 08:24The error you're getting means that there is a some process running which is taking the port 50100 so JMeter cannot use this port.
You can check which process is "holding" the port 50100 using netstat command and kill this process, once done JMeter should be able to start successfully.
You can also try setting client.rmi.localport value to 0 - this way RemoteSamplerListener will bind to a random free port.
More information: How to Perform Distributed Testing in JMeter
QUESTION
We have created a Inbound Connector and custom Management Pack.
We send data to our SCOM server using .NET SDK examples.
We can see performance data and events on SCOM console.
But when we create Performance report (Reporting > Microsoft Generic Report Library > Performance) we do not see our Performance Counters.
It seem we have a trouble with inserting performance data to DW database.
Please ask me about any additional information which I can provide to solve the trouble.
UPDATE
Our Management Pack source code:
...ANSWER
Answered 2018-Jun-25 at 08:14We have fixed our trouble!
I have reviewed SCOM DW database and saw that we need to implement separate Rule for each metric.
We can find similar issue and description on Michel Kamp blog.
We used SCOM SDK to create dynamic Rules and add these Rules to our Management Pack.
Detailed code example is here:
QUESTION
Our SCOM version is 7.3.13142.0
We have developed Management Pack for SCOM integration.
Please review Management Pack source code:
...ANSWER
Answered 2018-Jun-06 at 13:28We have fixed this trouble.
We had problem with Target Rule:
QUESTION
I have a project that requires use of pre-defined classes to communicate with a remote web service. The primary class contains standard fields plus an array of objects defined within a different class. Instantiating the main class doesn't instantiate the lower level class thus producing an AV. The code below is an executable sample of the issue, where attempting to insert data in the 'ProductLines' array produces the error.
The question is how to instantiate the array objects? Tried constructor, setlength() without success. Any guidance MUCH appreciated.
...ANSWER
Answered 2018-Feb-23 at 23:01The question is how to instantiate the array objects?
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