epoll | Event-based socket server , which uses epoll | Socket library

 by   wizzardo Java Version: 0.3.4 License: MIT

kandi X-RAY | epoll Summary

kandi X-RAY | epoll Summary

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

to build you will need to install libssl-dev. to build 32x version on 64x OS you will need to install libc6-dev-i386 libssl-dev:i386.
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            kandi-support Support

              epoll has a highly active ecosystem.
              It has 51 star(s) with 8 fork(s). There are 8 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 0 open issues and 3 have been closed. On average issues are closed in 0 days. There are no pull requests.
              OutlinedDot
              It has a negative sentiment in the developer community.
              The latest version of epoll is 0.3.4

            kandi-Quality Quality

              epoll has 0 bugs and 0 code smells.

            kandi-Security Security

              epoll has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              epoll code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              epoll is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              epoll releases are not available. You will need to build from source code and install.
              Deployable package is available in Maven.
              Build file is available. You can build the component from source.
              Installation instructions, examples and code snippets are available.
              epoll saves you 1305 person hours of effort in developing the same functionality from scratch.
              It has 2938 lines of code, 314 functions and 34 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed epoll and discovered the below as its top functions. This is intended to give you an instant insight into epoll implemented functionality, and help decide if they suit your requirements.
            • Main loop
            • Handle a connection event
            • Handle timeouts
            • Puts a connection into the pool
            • Start the IOThread
            • Add a new connection
            • Create new connections
            • Read bytes from the stream
            • Read bytes from the internal buffer
            • Compares two connections
            • Read a byte buffer
            • Writes the given ByteBuffer to the given ByteBuffer
            • Returns an InputStream for the Epoll
            • Unread an integer
            • Returns a string representation of the parts
            • Closes all underlying streams
            • Read at position i
            • Converts the buffer to a string
            • Returns the length of the data
            • Returns the total number of bytes remaining
            • Reads data from the underlying stream
            • Perform the complete operation
            • Reads bytes into a single byte buffer
            • Loads a lib
            • Reads bytes from the underlying stream
            • Unread bytes
            Get all kandi verified functions for this library.

            epoll Key Features

            No Key Features are available at this moment for epoll.

            epoll Examples and Code Snippets

            No Code Snippets are available at this moment for epoll.

            Community Discussions

            QUESTION

            How to rebuild epoll package in electron?
            Asked 2022-Mar-18 at 11:41

            I try to rebuild an electron app but I got this error regarding the epoll installation.

            ...

            ANSWER

            Answered 2021-Nov-09 at 06:01

            I have a same problem too, but i am using a serialport not epoll.

            So, I think the cause of this problem is electron modules not the native module.

            Source https://stackoverflow.com/questions/69882740

            QUESTION

            Gem::Ext::BuildError: ERROR: Failed to build gem native extension on macOS Monterey
            Asked 2022-Mar-17 at 22:28

            When I run bundle install on my rails 5 project, I am getting a number of errors on gems that appear to have native extensions. Here is the top of the output for one of those gems:

            ...

            ANSWER

            Answered 2022-Mar-17 at 22:28

            It turns out the problem was that in the Gemfile.lock file, it was locked to using an older version of bundler. We simply deleted the Gemfile.lock, and re-ran bundle to regenerate Gemfile.lock. That solved it. It now says this at the bottom of the Gemfile.lock file, so it liked this version of bundler:

            Source https://stackoverflow.com/questions/71486108

            QUESTION

            Is it possible to use keep-alive with boost::beast sync https client?
            Asked 2022-Mar-03 at 16:48

            Is it possible to use http 1.1 keep-alive with the boost beast library when using a sync ssl client? I have a process that works something like this:

            1. Connection to web server using https. Send an initial request, wait for a response
            2. select()/epoll()/etc on the https native socket handle
            3. When the native handle has something ready, I issue an http::read() on the ssl_stream.

            The first http::read() works perfectly fine. However, when the socket is ready the next time, I get an end of stream exception when issuing an http::read() on the socket. What I want is for the socket to stay alive for multiple requests.

            The code isn't too complicated, but it's in pieces:

            ...

            ANSWER

            Answered 2022-Mar-03 at 16:48

            The server could be dropping the connection, e.g. when your request maybe of indeterminate content-length, making it impossible to keep the connection open (how would the server know that the request was incomplete?).

            So, just imagining some more complete code:

            1a. connection to web server using https

            Source https://stackoverflow.com/questions/71333325

            QUESTION

            Spring Boot WebClient stops sending requests
            Asked 2022-Feb-18 at 14:42

            I am running a Spring Boot app that uses WebClient for both non-blocking and blocking HTTP requests. After the app has run for some time, all outgoing HTTP requests seem to get stuck.

            WebClient is used to send requests to multiple hosts, but as an example, here is how it is initialized and used to send requests to Telegram:

            WebClientConfig:

            ...

            ANSWER

            Answered 2021-Dec-20 at 14:25

            I would propose to take a look in the RateLimiter direction. Maybe it does not work as expected, depending on the number of requests your application does over time. From the Javadoc for Ratelimiter: "It is important to note that the number of permits requested never affects the throttling of the request itself ... but it affects the throttling of the next request. I.e., if an expensive task arrives at an idle RateLimiter, it will be granted immediately, but it is the next request that will experience extra throttling, thus paying for the cost of the expensive task." Also helpful might be this discussion: github or github

            I could imaginge there is some throttling adding up or other effect in the RateLimiter, i would try to play around with it and make sure this thing really works the way you want. Alternatively, consider using Spring @Scheduled to read from your queue. You might want to spice it up using embedded JMS for further goodies (message persistence etc).

            Source https://stackoverflow.com/questions/70357582

            QUESTION

            Nginx pod responds with its listening port in self-signed certificate examples
            Asked 2022-Jan-25 at 22:59

            Env:

            ...

            ANSWER

            Answered 2022-Jan-25 at 22:59

            I completely recreated your configuration for minikube on Linux. Your Kubernetes configuration is fine. And I got the same response - 301 Moved Permanently.

            After that, I changed these lines in the default.conf file:

            Source https://stackoverflow.com/questions/70830744

            QUESTION

            PortUnreachableExceptions spamming log after updating Spring Boot Parent
            Asked 2022-Jan-13 at 17:47

            After upgrading from spring-boot-parent version 2.5.5 to 2.6.0, I started seeing these error messages spamming the logs:

            [INFO] [stdout] 2022-01-11 13:40:01.157 WARN 76859 --- [ udp-epoll-2] i.m.s.reactor.netty.channel.FluxReceive : [6d1243de, L:/127.0.0.1:58160 - R:localhost/127.0.0.1:8125] An exception has been observed post termination, use DEBUG level to see the full stack: java.net.PortUnreachableException: readAddress(..) failed: Connection refused

            Using DEBUG level:

            ...

            ANSWER

            Answered 2022-Jan-13 at 17:47

            assuming statsd is not used and configured on your side, since it's pointed to localhost, you may disable it by setting

            Source https://stackoverflow.com/questions/70667172

            QUESTION

            InternalServerError: Unknown server error occurred when processing this request
            Asked 2022-Jan-05 at 11:32

            I receive sporadic the follow error with the Azure CosmosDB emulator on calling CosmosDatabase.createContainerIfNotExists.

            • Also if the error message contains many helpless details there is nothing to understand the cause. How can I get more information about the error from the Azure CosmosDB emulator?

            • What can be the cause of the error? The count of existing container if the error occur is approximate 70 to 130. This should be no problem for the limit of 250 containers.

            • What is the best handling of the error?

            ...

            ANSWER

            Answered 2022-Jan-04 at 10:50

            For Error –

            Suppressed: java.lang.Exception: #block terminated with an error

            If you face block terminated error. you should create a new connection while making an api call. This would solve the issue.

            I would suggest you raise support ticket

            You can also refer to this GitHub repo for CosmosDatabase.createContainerIfNotExists

            Source https://stackoverflow.com/questions/70211256

            QUESTION

            What's the source of this enigmatic *** buffer overflow detected ***: terminated error
            Asked 2022-Jan-04 at 17:04

            I have a program which reads from a file which is a list of domain names. It performs asynchronous DNS and then downloads the landing page for each domain using an asynchronous epoll loop.

            The program runs fine for thousands of iterations and then bombs out with a *** buffer overflow detected ***: terminated error. Here is the backtrace:

            ...

            ANSWER

            Answered 2022-Jan-03 at 22:19

            QUESTION

            Is it necessary to remove all file descriptors in the interest list before closing the epoll instance itself?
            Asked 2022-Jan-02 at 07:29

            Provided that:

            • I have created an epoll instance epfd by epoll_create, and registered many regular file descriptors by EPOLL_CTL_ADD.
            • I want to close the epoll instance by close(epfd)

            The manual page does't say whether I must EPOLL_CTL_DEL all file descriptors before close(epfd).

            So, my question is:

            Is it necessary to remove all file descriptors in the interest list before closing the epoll instance itself?

            ...

            ANSWER

            Answered 2022-Jan-02 at 07:29

            No, it's not necessary to manually remove them.

            From the epoll_create(2) manpage (emphasis added)

            When all file descriptors referring to an epoll instance have been closed, the kernel destroys the instance and releases the associated resources for reuse.

            Source https://stackoverflow.com/questions/70552144

            QUESTION

            Launching chrome in headless mode with selenium in Java giving error
            Asked 2021-Dec-31 at 13:08

            This is my code:

            ...

            ANSWER

            Answered 2021-Dec-31 at 13:08

            You need to take care of a few things here:

            • You have already download the ChromeDriver and accessing it as:

            Source https://stackoverflow.com/questions/70538475

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

            Vulnerabilities

            No vulnerabilities reported

            Install epoll

            You can download it from GitHub, Maven.
            You can use epoll like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the epoll component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

            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:

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          • HTTPS

            https://github.com/wizzardo/epoll.git

          • CLI

            gh repo clone wizzardo/epoll

          • sshUrl

            git@github.com:wizzardo/epoll.git

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