jocket | Low-latency java socket implementation | Socket library

by pcdv Java Version: 0.5.0 License: Apache-2.0

X-Ray Key Features Code Snippets(1)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | jocket Summary

jocket is a Java library typically used in Networking, Socket applications. jocket has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub.

Low-latency replacement for local Java sockets, using shared memory. It has been developed under Linux and works optimally on this platform thanks to the use of a [futex] accessed through JNI. The futex allows to implement inter-process wait/notify. Jocket can work without a futex but it involves active waiting or sleeping so it is not ideal in all situations. It is possible that a similar feature exists on macOS/Windows but I have not looked into it yet. I don’t currently use Jocket in production but several people have contacted me for advice or bug reports so I suspect some people do :).

Support

Quality

Security

License

Reuse

Support

jocket has a low active ecosystem.

It has 84 star(s) with 8 fork(s). There are 11 watchers for this library.

It had no major release in the last 12 months.

There are 2 open issues and 4 have been closed. On average issues are closed in 380 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of jocket is 0.5.0

Quality

jocket has 0 bugs and 0 code smells.

Security

jocket has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

jocket code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

jocket is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

jocket releases are available to install and integrate.

Build file is available. You can build the component from source.

Installation instructions, examples and code snippets are available.

jocket saves you 692 person hours of effort in developing the same functionality from scratch.

It has 1601 lines of code, 159 functions and 32 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed jocket and discovered the below as its top functions. This is intended to give you an instant insight into jocket implemented functionality, and help decide if they suit your requirements.

Accepts the server
Map executor to a Futex
Used for testing only
Is the library available?
Creates a new packet
Close the connection
Returns the number of bytes available to be written in a single chunk
Puts a byte into the buffer at the given position
Puts an array of bytes
Adds a shutdown hook
Gets an int at the given position
Puts an int value at the given position
Unmap the buffer
Closes the stream
Returns the number of bytes available to write
Set packet alignment
Closes the server
Closes the barrier
Returns the number of available bytes
Pauses the current thread
Sends a packet
Returns the next packet
Loads the specified library
Releases a packet
Tries to create a temporary file in a temporary directory
Initializes the Unsafe

Get all kandi verified functions for this library.

jocket Key Features

No Key Features are available at this moment for jocket.

jocket Examples and Code Snippets

Default jocket configuration .

java

Lines of Code : 9

License : No License

Copy

@Bean
    public Docket api() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.javadevjournal.controller"))
                .paths(PathSelectors.any())

Community Discussions

Trending Discussions on Socket

EmbeddedKafka failing since Spring Boot 2.6.X : AccessDeniedException: ..\AppData\Local\Temp\spring.kafka*

Log4j vulnerability - Is Log4j 1.2.17 vulnerable (was unable to find any JNDI code in source)?

My project doesn't compile with optimization parameters after upgrading from angular 11 to angular 12

How to give certificate to Java Websocket?

Docker error: standard_init_linux.go:228: exec user process caused: exec format error

Wrong PHP version used when installing composer with Alpine's apk command

Can't listen to event sent from feathers server to client

Cypress Test Runner unexpectedly exited via a exit event with signal SIGSEGV in circleCI

localhost:5000 unavailable in macOS v12 (Monterey)

Running Cypress on WSL

QUESTION

EmbeddedKafka failing since Spring Boot 2.6.X : AccessDeniedException: ..\AppData\Local\Temp\spring.kafka*

Asked 2022-Mar-25 at 12:39

e: this has been fixed through Spring Boot 2.6.5 (see https://github.com/spring-projects/spring-boot/issues/30243)

Since upgrading to Spring Boot 2.6.X (in my case: 2.6.1), I have multiple projects that now have failing unit-tests on Windows that cannot start EmbeddedKafka, that do run with Linux

There is multiple errors, but this is the first one thrown

...

ANSWER

Answered 2021-Dec-09 at 15:51

Known bug on the Apache Kafka side. Nothing to do from Spring perspective. See more info here: https://github.com/spring-projects/spring-kafka/discussions/2027. And here: https://issues.apache.org/jira/browse/KAFKA-13391

You need to wait until Apache Kafka 3.0.1 or don't use embedded Kafka and just rely on the Testcontainers, for example, or fully external Apache Kafka broker.

Source https://stackoverflow.com/questions/70292425

QUESTION

Log4j vulnerability - Is Log4j 1.2.17 vulnerable (was unable to find any JNDI code in source)?

Asked 2022-Feb-01 at 15:47

With regard to the Log4j JNDI remote code execution vulnerability that has been identified CVE-2021-44228 - (also see references) - I wondered if Log4j-v1.2 is also impacted, but the closest I got from source code review is the JMS-Appender.

The question is, while the posts on the Internet indicate that Log4j 1.2 is also vulnerable, I am not able to find the relevant source code for it.

Am I missing something that others have identified?

Log4j 1.2 appears to have a vulnerability in the socket-server class, but my understanding is that it needs to be enabled in the first place for it to be applicable and hence is not a passive threat unlike the JNDI-lookup vulnerability which the one identified appears to be.

Is my understanding - that Log4j v1.2 - is not vulnerable to the jndi-remote-code execution bug correct?

References

This blog post from Cloudflare also indicates the same point as from AKX....that it was introduced from Log4j 2!

Update #1 - A fork of the (now-retired) apache-log4j-1.2.x with patch fixes for few vulnerabilities identified in the older library is now available (from the original log4j author). The site is https://reload4j.qos.ch/. As of 21-Jan-2022 version 1.2.18.2 has been released. Vulnerabilities addressed to date include those pertaining to JMSAppender, SocketServer and Chainsaw vulnerabilities. Note that I am simply relaying this information. Have not verified the fixes from my end. Please refer the link for additional details.

...

ANSWER

Answered 2022-Jan-01 at 18:43

The JNDI feature was added into Log4j 2.0-beta9.

Log4j 1.x thus does not have the vulnerable code.

Source https://stackoverflow.com/questions/70310980

QUESTION

My project doesn't compile with optimization parameters after upgrading from angular 11 to angular 12

Asked 2022-Jan-31 at 19:50

I just upgraded an environment with nrwl from angular version 11 to 12 with two angular applications and several libraries. After update when I try to compile using optimization settings:

angular.json

...

ANSWER

Answered 2022-Jan-31 at 19:50

Reason of the issue

It is expected browserslist to return an entry for each version ("safari 15.2", "safari 15.3") instead of a range ("safari 15.2-15.3"). So, this is just a bug in the parsing logic of Safari browser versions which needs to be corrected and will be done soon in fixed versions of Angular 12/Angular 13. Link to details is here.

IMPORTANT UPDATE:

This is fixed in v12.2.16 and v13.2.1, please update if you are experiencing this issue. Users on v11 shouldn't be affected. Link to details is here. If you can not/do not want to update for any reason, then one of the workarounds below can be used.

Workarounds:

Modify .browserslistrc

Add to .browserslistrc such lines:

Source https://stackoverflow.com/questions/70910612

QUESTION

How to give certificate to Java Websocket?

Asked 2022-Jan-20 at 10:33

Forgive me for the newb question, but I am confused and obviously not understanding the fundamentals or explanations of how to use a Websocket server hosted over HTTPS. Everything I find online leads me to have more questions than answers.

I have a Websocket server hosted on my HTTPS website using Java code.

This is my WebsocketServer.java file:

...

ANSWER

Answered 2022-Jan-13 at 14:50

Keep it easy.
Certs inside your application are complex - they are hard to manage and you will get problems to run your application in a modern cloud environment (start new environments, renew certs, scale your application, ...).

Simple conclusion: Dont implement any certs.

How-to get encrypted connections?

As Mike already pointed out in the comments: WebSockets are just upgraded HTTP(S) connections. A normal webserver (nginx, apache) takes care about the certs. It can be done in kubernetes (as ingress-controller) or with a "bare-metal" webserver.
Both of them should act as a reverse-proxy. This means: Your java-application doesn't know anything about certs. It has just unencrypted connections - like in your code on port 6868.
But the client will not use this port. 6868 is only internally reachable.

The client will call your reverse-proxy at the normal HTTPS port (=443). The reverse-proxy will forward the connection to your java-application.

Here some links for further information:

Source https://stackoverflow.com/questions/70654559

QUESTION

Docker error: standard_init_linux.go:228: exec user process caused: exec format error

Asked 2022-Jan-06 at 22:23

I was able to build a multiarch image successfully from an M1 Macbook which is arm64. Here's my docker file and trying to run from a raspberrypi aarch64/arm64 and I am getting this error when running the image: standard_init_linux.go:228: exec user process caused: exec format error

Editing the post with the python file as well:

...

ANSWER

Answered 2021-Oct-27 at 16:58

A "multiarch" Python interpreter built on MacOS is intended to target MacOS-on-Intel and MacOS-on-Apple's-arm64.

There is absolutely no binary compatibility with Linux-on-Apple's-arm64, or with Linux-on-aarch64. You can't run MacOS executables on Linux, no matter if the architecture matches or not.

Source https://stackoverflow.com/questions/69739201

QUESTION

Wrong PHP version used when installing composer with Alpine's apk command

Asked 2021-Dec-23 at 11:20

I've got a docker image running 8.0 and want to upgrade to 8.1. I have updated the image to run with PHP 8.1 and want to update the dependencies in it.

The new image derives from php:8.1.1-fpm-alpine3.15

I've updated the composer.json and changed require.php to ^8.1 but ran into the following message when running composer upgrade:

...

ANSWER

Answered 2021-Dec-23 at 11:20

Huh. This surprised me a bit.

composer is correctly reporting the PHP version it's using. The problem is that it's not using the "correct" PHP interpreter.

The issue arises because of how you are installing composer.

Apparently by doing apk add composer another version of PHP gets installed (you can find it on /usr/bin/php8, this is the one on version 8.0.14).

Instead of letting apk install composer for you, you can do it manually. There is nothing much to install it in any case, no need to go through the package manager. Particularly since PHP has not been installed via the package manager on your base image.

I've just removed the line containing composer from the apk add --update command, and added this somewhere below:

Source https://stackoverflow.com/questions/70439028

QUESTION

Can't listen to event sent from feathers server to client

Asked 2021-Dec-17 at 07:57

I'm building a server which uses feathers and socketio.

I'm trying to use feathers channels mechanism to notify relevant users (connections) on relevant events.
Users belong to groups, so upon connecting to the server, I add the connection to the appropriate channels.
Upon publishing, inside app.publish, I'm getting the right data and see that the connection is attached to the channel, but can't figure out how to listen to it on the client.

This is a simplified channels.js:

...

ANSWER

Answered 2021-Dec-16 at 08:17

Does a port need to be opened on the clients end to create the channel so the communication line is 2 ways. Perhaps javascript will have some code to open up the clients port.

Source https://stackoverflow.com/questions/70259246

QUESTION

Cypress Test Runner unexpectedly exited via a exit event with signal SIGSEGV in circleCI

Asked 2021-Dec-10 at 11:43

I am stuck in this problem. I am running cypress tests. When I run locally, it runs smoothly. when I run in circleCI, it throws error after some execution.
Here is what i am getting:

...

ANSWER

Answered 2021-Oct-21 at 08:53

Issue resolved by reverting back cypress version to 7.6.0.

Source https://stackoverflow.com/questions/69658152

QUESTION

localhost:5000 unavailable in macOS v12 (Monterey)

Asked 2021-Dec-08 at 14:08

I cannot access a web server on localhost port 5000 on macOS v12 (Monterey) (Flask or any other).

E.g., use the built-in HTTP server, I cannot get onto port 5000:

...

ANSWER

Answered 2021-Dec-08 at 14:08

macOS Monterey introduced AirPlay Receiver running on port 5000. This prevents your web server from serving on port 5000. Receiver already has the port.

You can either:

turn off AirPlay Receiver, or;
run the server on a different port (normally best).

Turn off AirPlay Receiver

Go to System Preferences → Sharing → Untick Airplay Receiver.

See more details

You should be able to rerun the server now on port 5000 and get a response:

Source https://stackoverflow.com/questions/69818376

QUESTION

Running Cypress on WSL

Asked 2021-Nov-17 at 22:49

I'm trying to run cypress on a WSL with Ubuntu, this is what I'm getting:

...

ANSWER

Answered 2021-Oct-19 at 14:32

Cypress requires the ability to run its GUI. Depending on your Windows version, you likely need some additional configuration in order to run GUI applications in WSL:

For all Windows releases, make sure you install the required dependencies:

Source https://stackoverflow.com/questions/69621197

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install jocket

Just run the following commands to build Jocket and run the benchmark. $JAVA_HOME must be set to a valid JDK directory otherwise the JNI build will fail. You can run ant instead of gradlew if you have it installed (although I might remove ant support in the future). Notes: - the JNI build requires Linux for its futex implementation - the build should now work on macOS and on Windows as the JNI library is not generated but the lack of inter process synchronization will make it suboptimal. Using Jocket as a dependency.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: