actor | minimalist actor framework aiming for high performance | Web Framework library

 by   tonarino Rust Version: v0.8.3 License: MIT

kandi X-RAY | actor Summary

kandi X-RAY | actor Summary

actor is a Rust library typically used in Server, Web Framework, Framework applications. actor has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This crate aims to provide a minimalist and high-performance actor framework for Rust with significantly less complexity than other frameworks like Actix. In this framework, each Actor is its own OS-level thread. This makes debugging noticeably simpler, and is suitably performant when the number of actors is less than or equal to the number of CPU threads.
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              actor has a low active ecosystem.
              It has 37 star(s) with 5 fork(s). There are 3 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 10 open issues and 20 have been closed. On average issues are closed in 59 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of actor is v0.8.3

            kandi-Quality Quality

              actor has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              actor 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

              actor releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.

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            actor Key Features

            No Key Features are available at this moment for actor.

            actor Examples and Code Snippets

            Example
            Rustdot img1Lines of Code : 31dot img1License : Permissive (MIT)
            copy iconCopy
            use tonari_actor::{Actor, Context, System};
            
            struct TestActor {}
            
            impl Actor for TestActor {
                type Error = ();
                type Message = usize;
            
                fn name() -> &'static str {
                    "TestActor"
                }
            
                fn handle(&mut self, _context: &  
            Example,Build
            Rustdot img2Lines of Code : 1dot img2License : Permissive (MIT)
            copy iconCopy
            $ cargo build --release
              
            Example,Testing
            Rustdot img3Lines of Code : 1dot img3License : Permissive (MIT)
            copy iconCopy
            $ cargo test
              

            Community Discussions

            QUESTION

            UML class diagram for domain with movies
            Asked 2021-Jun-15 at 11:58

            I am currently creating class diagrams in UML for a movie test domain. I would like to know if I am doing it right. Well, I have two alternatives (the first version in the first picture, the second in the second - I think the first one is better). I'm wondering if I've established the so-called "relationship owner" correctly, that is, from which class to which direction the relationships go. I also don't know if I didn't get multiplicity wrong (one to one, one to many etc.).

            So on my domain I would like to have movies of course, the actors starring in those movies and directors. I wonder if the class name "Character" is good in this case, because I mean all the characters that take part in a movie - it can be director, actor but also for example "Batman". Maybe I should make a distinction here between "Movie Character" and then "Human", "Monster", whatever. But I don't know how to do it elegantly, will I then inherit from the Character class? I'm also wondering if I shouldn't put classes like City or Country together in one class called Address - but I wanted the classes to take attributes like in this case, that one is Master and the other is detail - and the relationship set in the right direction. I use only relations such as Inheritance and Dependency, I do not know if I should change something in this case.

            Version 1

            Version 2

            Thanks in advance for any suggestions or advice!

            ...

            ANSWER

            Answered 2021-Jun-15 at 11:58
            In short

            Use inheritance very carefully. Prefer association over inheritance whenever your inheritance is not a permanent truth from the birth to the death of an object. ANd keep in mind that dependencies between classes do not make any promises about objects of those classes.

            Some more explanations

            Some clarifications on the UML syntax:

            • I understand that your plain thick lines ended with a small hollow triangle represent a specialization/generalization relationship (aka inheritance). If this is correct, the triangle should be larger to avoid visual confusion. Moreover multiplicity makes no sense with inheritance and should be removed.
            • I understand that with the dotted line you intend to represent an association with multiplicity. If this is correct:
              • the association should be plain lines, because dotted lines are for dependencies, and multiplicity would make no sense.
              • the meaning you give to the arrow head would be unclear. Do you use them to document navigability? In case of doubt, remove them. If you want to document ownership of the association end, use the dot notation instead. (we cannot say if it’s right or wrong, since it’s a decision on how your model sees the associations)

            In view of your comments and the third model linked therein, there are some key UML semantics you need to keep in mind:

            • Inheritance is an ultra-strong relationship which means "is (always) a". In your example, you may say that an Actor is always a Person, and hence, everything you say about a Person is also true for an Actor. By the way, you should avoid repeating inherited properties or methods, since it could create some ambiguity.
            • Inheritance is not a substitute for aggregation, composition or association. You can for example not say that a CrewMember (one person) is always a Crew (a group of persons). A CrewMember belongs to a Crew but there are things that the crew can do together that the individual member can't.
            • Inheritance is not suitable if it's not always true. A Character for example may often be a Person. But not always;: you can have ghost characters, comic characters, robot characters, or animals.
            • Association means that there is some structural relation between some instances of the associated classes. For example, that one ore several persons live in one city, seems a very relevant assocaition.
            • Dependency means that a class is dependent on another, i.e. without the other class it would not work or something would be missing. It's a statement about the classes and not the objects. I.e. If you meant to say that Person is dependent on City you just say that the class Person would not work without knowing about City (for example, because the operation sendPostCardFrom(city: City) needs an argument of that type) but you do not say anything about persons X, Y and Z. If you want that X, Y and Z are related to city a, b, and c, you need an association.

            About the model content, I'll not decide for you and there is no single truth. I therefore prefer to draw your attention at potential issues. I raise them in form of a question, up-to you to adjust the model based on your own answer:

            • Common issues between the both variants:

              • Are Actor and Director really Persons ? In this case, what with the Persons that are Actors and Directors at the same time (g.g. Clint Eastwood) ? Or are Actor and Director just roles that a Persons takes for a given Movie ?
              • Is a Character really related only to 1 Movie? What to do with Indiana Jones, where the same character appears in several movies?
              • In a similar way, I wonder if there's really a single Person who lives in a City or if this should not be a many-to-many association?
            • Issues regarding the differences: `

              • Is a Person in version 1 a Character (inheritance) ? Or is a Character a representation of a Person (association: represents) ?
              • Is a Character in version 2 really an Actor and by transitivity also a Person (inheritance)? Or is the Character only associated with an Actor (association: plays) ?

            It's up to you to decide, but wherever I asked a question about association or inheritance, you should better think twice before using inheritance (i.e. prefer association/composition over inheritance)

            Source https://stackoverflow.com/questions/67912042

            QUESTION

            Sliding window based on Akka actor source not behaving as expected
            Asked 2021-Jun-14 at 16:30

            Using below code I'm attempting to use an actor as a source and send messages of type Double to be processed via a sliding window.

            The sliding windows is defined as sliding(2, 2) to calculate each sequence of twp values sent.

            Sending the message:

            ...

            ANSWER

            Answered 2021-Jun-14 at 11:39

            The short answer is that your source is a recipe of sorts for materializing a Source and each materialization ends up being a different source.

            In your code, source.to(Sink.foreach(System.out::println)).run(system) is one stream with the materialized actorRef being only connected to this stream, and

            Source https://stackoverflow.com/questions/67961179

            QUESTION

            NHibernate doesn't delete orphans in one-to-many relationship
            Asked 2021-Jun-14 at 15:43

            While deleting and adding works fine, when I update the Parent collection of child entities, the foreign keys on child records are simply set to null. I'd like them to be completely removed from the database.

            So I've been trying Cascade.All, Cascade.DeleteOrphans, Cascade.All.Include(Cascade.DeleteOrphans) and nothing seems to work.

            If I set Inverse to true on the parent but it causes the child records to not get updated at all.

            Here's my code:

            Parent class mapping ...

            ANSWER

            Answered 2021-Jun-14 at 15:43

            Changing Update() to Merge() worked for me.

            Source https://stackoverflow.com/questions/67712294

            QUESTION

            Run scheduled background job on stateful service in azure service fabric to update some data in Reliable Dictionary on schedule time
            Asked 2021-Jun-14 at 08:15

            Is there away to run scheduled background job on stateful service in azure service fabric ? the only way I found only was timers & reminders which they run on Actors not stateful service. I'm trying to run scheduled background job to clean up some data in Reliable dictionary.

            ...

            ANSWER

            Answered 2021-Jun-14 at 08:15

            The recommended way to run background jobs in Service Fabric is to simply override the RunAsync operation. This works equally fine for stateful and stateless services - although, as already mentioned, Actors provide some additional functionality with its built in support for reminders and timers.

            Below is a very basic example

            Source https://stackoverflow.com/questions/67913720

            QUESTION

            emu 8086 Keep symbols unchanged
            Asked 2021-Jun-13 at 16:03

            These codes convert uppercase letters ("letters only") to lowercase letters and lowercase letters to uppercase. My question is that I want to print them as well and keep them unchanged, if any (non-verbal symbols and actors). With the cmp and ... commands that you see in the program

            ...

            ANSWER

            Answered 2021-Jun-13 at 16:03

            You need to restrict the ranges for the uppercase and lowercase characters by specifying a lower limit and a higher limit, not just the one value (96) that your current code uses.

            Uppercase characters [A,Z] are in [65,90]
            Lowercase characters [a,z] are in [97,122]

            The nice thing of course is that you don't actually need to write these numbers in your code. You can just write the relevant characters and the assembler will substitute them for you:

            Source https://stackoverflow.com/questions/67959389

            QUESTION

            Rails Active Record .to_yaml different output for text content
            Asked 2021-Jun-11 at 15:11

            We do use .to_yaml on ActiveRecord to dump some values of a record in to a .yml file for backup reasons.

            Those files are stored into a repository as those backup data is part of defaults for setup new systems.

            Example:

            ...

            ANSWER

            Answered 2021-Jun-11 at 15:11

            The issue is with lines that include only spaces.

            These will format how you want:

            Source https://stackoverflow.com/questions/67926720

            QUESTION

            Regex to grab all text before and after match, and stop before second keyword is found
            Asked 2021-Jun-11 at 01:16

            I'd like to create a regex that would be able to grab everything up to and after DESCRIPTION, until the next TITLE: is found.

            ...

            ANSWER

            Answered 2021-Jun-11 at 01:07

            /(?=TITLE: )/g seems like a reasonable start. I'm not sure if the gutter of 2 characters whitespace is in your original text or not, but adding ^ or ^ to the front of the lookahead is nice to better avoid false-positives, i.e. /(?=^TITLE: )/mg, /(?=^ TITLE: )/mg or /(?=^ *TITLE: )/mg.

            Source https://stackoverflow.com/questions/67930049

            QUESTION

            Can I use actors in Swift to always call a function on the main thread?
            Asked 2021-Jun-10 at 15:19

            I recently saw that Swift had introduced concurrency support with the Actor model in Swift 5.5. This model enables safe concurrent code to avoid data races when we have a shared, mutable state.

            I want to avoid main thread data races in my app's UI. For this, I am wrapping DispatchQueue.main.async at the call site wherever I set a UIImageView.image property or a UIButton style.

            ...

            ANSWER

            Answered 2021-Jun-10 at 15:19

            Actor isolation and re-entrancy is now implemented in the Swift stdlib. So, Apple recommends using the model for concurrent logic with many new concurrency features to avoid data races. Instead of lock-based synchronisation (lots of boilerplate), we now have a much cleaner alternative. There are a couple of solutions here (see below).

            Solution 1

            The simplest possible. Apple have made the process much cleaner using the @MainActor method annotation:

            Source https://stackoverflow.com/questions/67893376

            QUESTION

            FailedPreconditionError while using DDPG RL algorithm, in python, with keras, keras-rl2
            Asked 2021-Jun-10 at 07:00

            I am training a DDPG agent on my custom environment that I wrote using openai gym. I am getting error during training the model.

            When I search for a solution on web, I found that some people who faced similar issue were able to resolve it by initializing the variable.

            ...

            ANSWER

            Answered 2021-Jun-10 at 07:00

            For now I was able to solve this error by replacing the imports from keras with imports from tensorflow.keras, although I don't know why keras itseld doesn't work

            Source https://stackoverflow.com/questions/67908668

            QUESTION

            How to Change the Code After inserting Object in Vectors
            Asked 2021-Jun-09 at 22:15

            In Movie.hpp

            ...

            ANSWER

            Answered 2021-Jun-09 at 22:15

            I'll employ some database theory here.

            Each movie will have a unique ID and a title:

            Source https://stackoverflow.com/questions/67911443

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

            Vulnerabilities

            No vulnerabilities reported

            Install actor

            You can download it from GitHub.
            Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.

            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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