weak-lock-free | concurrent map with weak keys | Map library

 by   raphw Java Version: Current License: Apache-2.0

kandi X-RAY | weak-lock-free Summary

kandi X-RAY | weak-lock-free Summary

weak-lock-free is a Java library typically used in Geo, Map applications. weak-lock-free 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, Maven.

This is a miniature implementation of a concurrent, lock-free (as in lock-less) hash map with weak keys where keys respect reference equality. Such a hash map removes entries containing collected keys by either:. As a wrapper around this WeakConcurrentMap, this package also contains a DetachedThreadLocal which describes a weak concurrent map where the current thread serves as a key of the map. Also, this package delivers a WeakConcurrentSet as a wrapper around a weak concurrent map. This map does not implement the java.util.Map interface to simplify the implementation. Writes to the map might cause blocking if many threads write to the map concurrently (this is implied by the maps backing by a ConcurrentHashMap and a ReferenceQueue), the performance of the map is however significantly better than using a synchronized wrapper around a weak hash map.
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    Quality
      Security
        License
          Reuse

            kandi-support Support

              weak-lock-free has a low active ecosystem.
              It has 93 star(s) with 13 fork(s). There are 8 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 0 open issues and 3 have been closed. On average issues are closed in 124 days. There are 3 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of weak-lock-free is current.

            kandi-Quality Quality

              weak-lock-free has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              weak-lock-free 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.

            kandi-Reuse Reuse

              weak-lock-free 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 are not available. Examples and code snippets are available.
              weak-lock-free saves you 390 person hours of effort in developing the same functionality from scratch.
              It has 927 lines of code, 103 functions and 8 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed weak-lock-free and discovered the below as its top functions. This is intended to give you an instant insight into weak-lock-free implemented functionality, and help decide if they suit your requirements.
            • Pushes the current value to the specified thread
            • Returns the value associated with the given key
            • Creates a default value for the given key
            • Returns the specified value
            • Returns the approximate size of this set
            • Returns the approximate size of this map
            • Returns an iterator that iterates over the elements in this sequence
            • Iterator implementation
            • Fetches the current value from the specified thread
            • Set value for current thread
            • Runs the map
            • Adds the specified value to the set
            • Resets the lookupKey
            • Returns the current value if present
            • Associates the value with the given key
            • Define a thread - local value
            • Clears this set
            • Clears all thread local references
            • Returns true if the specified value is contained in the set
            • Expunge expired entries
            • Returns a lookup key for the given key
            • Returns the active cleaner thread
            • Removes the specified value from this set
            • Run the task
            • Returns the value associated with the given key if it already exists
            • Checks if a class loader can be loaded
            Get all kandi verified functions for this library.

            weak-lock-free Key Features

            No Key Features are available at this moment for weak-lock-free.

            weak-lock-free Examples and Code Snippets

            No Code Snippets are available at this moment for weak-lock-free.

            Community Discussions

            QUESTION

            The unauthenticated git protocol on port 9418 is no longer supported
            Asked 2022-Mar-27 at 13:23

            I have been using github actions for quite sometime but today my deployments started failing. Below is the error from github action logs

            ...

            ANSWER

            Answered 2022-Mar-16 at 07:01

            First, this error message is indeed expected on Jan. 11th, 2022.
            See "Improving Git protocol security on GitHub".

            January 11, 2022 Final brownout.

            This is the full brownout period where we’ll temporarily stop accepting the deprecated key and signature types, ciphers, and MACs, and the unencrypted Git protocol.
            This will help clients discover any lingering use of older keys or old URLs.

            Second, check your package.json dependencies for any git:// URL, as in this example, fixed in this PR.

            As noted by Jörg W Mittag:

            There was a 4-month warning.
            The entire Internet has been moving away from unauthenticated, unencrypted protocols for a decade, it's not like this is a huge surprise.

            Personally, I consider it less an "issue" and more "detecting unmaintained dependencies".

            Plus, this is still only the brownout period, so the protocol will only be disabled for a short period of time, allowing developers to discover the problem.

            The permanent shutdown is not until March 15th.

            For GitHub Actions:

            As in actions/checkout issue 14, you can add as a first step:

            Source https://stackoverflow.com/questions/70663523

            QUESTION

            Emulate BTreeMap::pop_last in stable Rust
            Asked 2022-Mar-15 at 16:55

            In the current stable Rust, is there a way to write a function equivalent to BTreeMap::pop_last?

            The best I could come up with is:

            ...

            ANSWER

            Answered 2022-Mar-15 at 16:55

            Is there a way to work around this issue without imposing additional constraints on map key and value types?

            It doesn't appear doable in safe Rust, at least not with reasonable algorithmic complexity. (See Aiden4's answer for a solution that does it by re-building the whole map.)

            But if you're allowed to use unsafe, and if you're determined enough that you want to delve into it, this code could do it:

            Source https://stackoverflow.com/questions/71455966

            QUESTION

            Error when trying to run my React Native app on Android
            Asked 2022-Mar-06 at 07:58

            I've built my React Native app and tested and troubleshooted with my iOS devices for months. Now I'm trying to built and test the app on Android for the first time. The thing is, that I keep getting errors trying to run the Android-version of my app. After hours of debugging and troubleshooting, I tried to create a new RN project and see if that could run on my emulator and device. I got that part working and then I wanted to copy/paste the files of my existing app project into the new project.

            I pasted my existing assets, styles, the source JS-files and the package.json file into the new project, ran npm install and then I ended up with the exact same error message as I had in the original project when I run react-native run-android.

            The full error message is here:

            ...

            ANSWER

            Answered 2021-Aug-21 at 13:43

            I've hit this same issue and have temporarily resolved it by uninstalling react-native-video (npm uninstall --save react-native-video). That's not a great answer as I need that component, but I don't have a full solution yet. I think somehow com.yqritc:android-scalablevideoview:1.0.4. is required by react-native-video but has gotten lost or removed. Other thoughts are welcome.

            UPDATE: Resolved! In your build.gradle in your Android folder you need to add the repository "jcenter()" in allprojects (not in build dependencies) like this...

            Source https://stackoverflow.com/questions/68835157

            QUESTION

            throwError(error) is now deprecated, but there is no new Error(HttpErrorResponse)
            Asked 2022-Mar-01 at 00:42

            Apparently throwError(error) is now deprecated. The IntelliSense of VS Code suggests throwError(() => new Error('error'). new Error(...) accepts only strings. What's the correct way to replace it without breaking my HttpErrorHandlerService ?

            http-error.interceptor.ts ...

            ANSWER

            Answered 2021-Aug-04 at 19:08

            QUESTION

            TypeError: Cannot read properties of undefined (reading 'id')
            Asked 2022-Feb-21 at 18:23

            I have this error in my terminal:

            TypeError: Cannot read properties of undefined (reading 'id')

            I'm trying to test the call to an API, but the error appears.

            My function:

            ...

            ANSWER

            Answered 2021-Oct-17 at 15:15

            What is happening:

            The function itemToForm() is being called before the this.item is ready.

            There are many strategies to avoid this error. A very simple one is to add a catcher at the beginning of the function, like this:

            Source https://stackoverflow.com/questions/68959632

            QUESTION

            What is the proper evaluation order when assigning a value in a map?
            Asked 2022-Feb-02 at 09:25

            I know that compiler is usually the last thing to blame for bugs in a code, but I do not see any other explanation for the following behaviour of the following C++ code (distilled down from an actual project):

            ...

            ANSWER

            Answered 2022-Feb-01 at 15:49

            The evaluation order of A = B was not specified before c++17, after c++17 B is guaranteed to be evaluated before A, see https://en.cppreference.com/w/cpp/language/eval_order rule 20.

            The behaviour of valMap[val] = valMap.size(); is therefore unspecified in c++14, you should use:

            Source https://stackoverflow.com/questions/70943170

            QUESTION

            Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './lib/tokenize' is not defined by "exports" in the package.json of a module in node_modules
            Asked 2022-Jan-31 at 17:22

            This is a React web app. When I run

            ...

            ANSWER

            Answered 2021-Nov-13 at 18:36

            I am also stuck with the same problem because I installed the latest version of Node.js (v17.0.1).

            Just go for node.js v14.18.1 and remove the latest version just use the stable version v14.18.1

            Source https://stackoverflow.com/questions/69693907

            QUESTION

            Build Warning : Mapping new ns to old ns
            Asked 2022-Jan-28 at 12:53

            So, I'm using Flutter and on running the App, I receive errors like these in the debug console:

            ...

            ANSWER

            Answered 2021-Jul-31 at 19:43

            It not happen becuase of you have two build-tools version installed. It happens because of caches so on android studio just invalidating caches and restarting will fix this.

            Source https://stackoverflow.com/questions/68600352

            QUESTION

            Python 3.10 pattern matching (PEP 634) - wildcard in string
            Asked 2021-Dec-17 at 10:43

            I got a large list of JSON objects that I want to parse depending on the start of one of the keys, and just wildcard the rest. A lot of the keys are similar, like "matchme-foo" and "matchme-bar". There is a builtin wildcard, but it is only used for whole values, kinda like an else.

            I might be overlooking something but I can't find a solution anywhere in the proposal:

            https://docs.python.org/3/whatsnew/3.10.html#pep-634-structural-pattern-matching

            Also a bit more about it in PEP-636:

            https://www.python.org/dev/peps/pep-0636/#going-to-the-cloud-mappings

            My data looks like this:

            ...

            ANSWER

            Answered 2021-Dec-17 at 10:43

            QUESTION

            Command CompileSwiftSources failed with a nonzero exit code XCode 13
            Asked 2021-Oct-05 at 16:33

            I am trying to run a project on the Xcode13, after running a pod cache clean --all, deleting the derived data, and running a pod update. When I clean the project and build it the following error appears:

            ...

            ANSWER

            Answered 2021-Oct-05 at 16:33

            Edited: For people who use Cocoapods, this answer might be useful: https://stackoverflow.com/a/69384358/587609

            I also faced this issue, and it seems that there is a known issue on Xcode 13 as mentioned in this document: https://developer.apple.com/documentation/Xcode-Release-Notes/xcode-13-release-notes

            Swift libraries depending on Combine may fail to build for targets including armv7 and i386 architectures. (82183186, 82189214)

            Workaround: Use an updated version of the library that isn’t impacted (if available) or remove armv7 and i386 support (for example, increase the deployment target of the library to iOS 11 or higher).

            If your app is for iOS 11 or higher, one of the libraries should be modified to target iOS 11 or higher (e.g., my app is for iOS 12 or higher).

            For example, I am using GRDB.swift, and its minimum iOS version is 10.0. There was a discussion as an issue of this repo, and I followed that comment to solve this issue as follows:

            1. Fork the repository
            2. Change Package.swift to modify the minimum iOS version like:

            Source https://stackoverflow.com/questions/69276367

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

            Vulnerabilities

            No vulnerabilities reported

            Install weak-lock-free

            You can download it from GitHub, Maven.
            You can use weak-lock-free 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 weak-lock-free 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 .
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          • HTTPS

            https://github.com/raphw/weak-lock-free.git

          • CLI

            gh repo clone raphw/weak-lock-free

          • sshUrl

            git@github.com:raphw/weak-lock-free.git

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