smoltcp | driven TCP/IP stack that is designed for bare-metal

by smoltcp-rs Rust Version: v0.9.1 License: 0BSD

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | smoltcp Summary

smoltcp is a Rust library. smoltcp has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

smoltcp is a standalone, event-driven TCP/IP stack that is designed for bare-metal, real-time systems. Its design goals are simplicity and robustness. Its design anti-goals include complicated compile-time computations, such as macro or type tricks, even at cost of performance degradation. smoltcp does not need heap allocation at all, is extensively documented, and compiles on stable Rust 1.56 and later. smoltcp achieves ~Gbps of throughput when tested against the Linux TCP stack in loopback mode.

Support

Quality

Security

License

Reuse

Support

smoltcp has a medium active ecosystem.

It has 3061 star(s) with 327 fork(s). There are 63 watchers for this library.

It had no major release in the last 6 months.

There are 34 open issues and 264 have been closed. On average issues are closed in 82 days. There are 8 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of smoltcp is v0.9.1

Quality

smoltcp has 0 bugs and 0 code smells.

Security

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

smoltcp code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

smoltcp is licensed under the 0BSD License. This license is Permissive.

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

Reuse

smoltcp releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

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smoltcp Key Features

No Key Features are available at this moment for smoltcp.

smoltcp Examples and Code Snippets

No Code Snippets are available at this moment for smoltcp.

Community Discussions

Trending Discussions on smoltcp

How to implement a trait function generic over return type

How to call closure with closure as argument

error: no matching function for call to 'std::optional::optional(smoltcp::Buffer&)'

How to hold a `Box` when `MyTrait` has parametrized types?

Putting thing (moving) inside struct gives lifetime error

QUESTION

How to implement a trait function generic over return type

Asked 2021-Mar-25 at 20:52

trait CallOnceSafe {
    fn call_once_safe(&mut self, x: &mut [u8]) -> smoltcp::Result;
}

impl smoltcp::Result> CallOnceSafe for Option {
    fn call_once_safe(&mut self, x: &mut [u8]) -> smoltcp::Result {
        // panics if called more than once - but A::consume() calls it
        // only once
        let func = self.take().unwrap();
        func(x)
    }
}

...

ANSWER

Answered 2021-Mar-25 at 20:52

As CallOnceSafe is defined right now the caller of call_once_safe can choose R, while the implementer has to guarantee that no matter what R is choose, a smoltcp::Result will be returned, however any implementation for Option where F: FnOnce(&mut [u8]) -> smoltcp::Result will only work for the specific R that F can return.

The only reasonable solution is to change how CallOnceSafe is defined. There are two way you can do this:

Make R a generic type parameter. This will allow you to choose for which R you want to implement CallOnceSafe.

Source https://stackoverflow.com/questions/66792711

QUESTION

How to call closure with closure as argument

Asked 2021-Mar-13 at 09:26

I have an struct that implements the trait A which has the function fn consume. I want to pass a callback to this struct, to be called by fn consume. Something like this:

pub type OnVirtualTunWrite = Arc Result<(), VirtualTunWriteError> + Send + Sync>;

It's on an Arc because it's shared between threads.

...

ANSWER

Answered 2021-Mar-13 at 09:26

I tried Arc Result<(), ()> + Send + Sync>

That should be &dyn FnOnce(...), but that won't work either because calling FnOnce automatically moves it, so it can't be called from behind a reference. The simplest solution is to introduce an extra allocation in consume, because Box implements FnOnce itself since Rust 1.35. For example (playground):

Source https://stackoverflow.com/questions/66576915

QUESTION

error: no matching function for call to 'std::optional::optional(smoltcp::Buffer&)'

Asked 2020-Jul-29 at 20:39

I am trying to make a function that returns an std::optional to Buffer:

...

ANSWER

Answered 2020-Jul-29 at 17:29

To be short: You should add copy- or move-constructor to Buffer.

More details:

You have Buffer object and need to create another Buffer (in std::optional), but there is no constructor in Buffer which can accept parameters you're passing. Compiler doesn't generate default copy/move-constructors, because you declared custom one. So, you should construct std::optional from bool, from CBuffer or add another one with const Buffer& or Buffer&&.

Source https://stackoverflow.com/questions/63158979

QUESTION

How to hold a `Box` when `MyTrait` has parametrized types?

Asked 2020-Jun-22 at 12:16

I need to hold an option for a runtime-chosen Box:

...

ANSWER

Answered 2020-Jun-22 at 05:54

Why do I need to specify these types if they're in a box? Whatever object that implements Device that I store in this Box is already gonna have its RxToken and TxToken chosen. I see no reason to have to specify it.

Because currently object safety requires explicitly provided concrete associated types.

There was a pre-rfc to improve that but it apparently went nowhere.

What can I do in this case?

Either specify those types or do something else.

Source https://stackoverflow.com/questions/62508010

QUESTION

Putting thing (moving) inside struct gives lifetime error

Asked 2020-Jun-07 at 06:05

First of all, I know it's much better to create minimal reproducible examples, but I don't have idea on where this problem comes from. I've cleared much of the code for this question.

...

ANSWER

Answered 2020-Jun-07 at 06:05

Its because of the lifetime constraint on sockets in SocketSet::new. ManagedSlice Requires that its value to live as long as 'a seen in its definition ManagedSlice<'a, T: 'a>.

The generic constraint SocketsT: Into<'a, Option<'b, 'c>>> does not assert that the ManagedSlice is Owned. So the compiler will make sure that this code works regardless if the into returns a Owned or Borrowed. ManagedSlice has to live for the longest lifetime of ManagedSlice::Owned and ManagedSlice::Borrowed because it could be either.

Calling .into() on sockets does creates a ManagedSlice::Owned in this case, but in a situation where into returned ManagedSlice::Borrowed, into would create a reference. So it makes 'a at least as long as 'static, as sockets is owned by the function and a is a reference to sockets.

Changing the generic constraints to make it clear that what is being passed in is not a reference gets rid of the warning.

Source https://stackoverflow.com/questions/62187855

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

Vulnerabilities

No vulnerabilities reported

Install smoltcp

To use the smoltcp library in your project, add the following to Cargo.toml:.

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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