libunifex
eCAL
libunifex | eCAL | |
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22 | 11 | |
1,366 | 1 | |
2.5% | - | |
7.6 | 9.2 | |
10 days ago | almost 2 years ago | |
C++ | C++ | |
GNU General Public License v3.0 or later | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
libunifex
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Comparing asio to unifex
I'm curious what led you to this conclusion. If you ran into scalability issues with its static_thread_pool, then that's a known issue. If it's something else, the authors (of which I'm one) would love to know.
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How does one actually build a C++ project
Instead of calling add_executable you will call add_library. Here is a (only moderately complicated) production example of a library that can be built standalone (along with tests and example executables), or as a subproject, where it builds only the library
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How to write networking code now that will be easiest to adapt to the upcoming standard?
My original thought was to build my DDS implementation on top of libunifex in anticipation for standardization: https://github.com/facebookexperimental/libunifex
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Executors/libunifex example project
I'm trying to understand how to work with the proposed executors in a project, but after watching Eric Niebler's cppcon talks (https://youtu.be/xLboNIf7BTg) and looking at the libunifex examples (https://github.com/facebookexperimental/libunifex/tree/main/examples) I still have a hard time wrapping my head around how to employ the sender/receiver pattern in a larger project.
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Async/Await pattern in C++
You have coroutines in C++20 but there is also the executives proposal that's making it's way into C++23 that is available as a library under the name unifex that only requires C++14
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Using Asio for asynchronous gRPC clients and servers
Asio-grpc makes exactly that possible by providing an Asio execution_context compatible interface to the CompletionQueue. It supports all types of RPCs (including generic ones), completion tokens, cancellation, as well as libunifex sender/receiver (if you want to try out what might become std::execution). The latest release (v1.7.0) also introduced a GrpcStream class for writing Rust/Golang select-style code.
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My thoughts and dreams about a standard user-space I/O scheduler
P2300: they are trying to standardize facebookexperimental/libunifex
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"C++ makes it harder to shoot yourself, but when you do it blows your whole leg off"
All the network handling for Instagram and all other Meta apps on all platforms is handled by their own C++ library https://github.com/facebookexperimental/libunifex.
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State of the art for CPOs (customization points) in C++?
This. I'd also like to mention libunifex. It's entirely based on tag_invoke and is a testament as to how much power it actually provides. On the other hand, it also proves how cumbersome it is to define CPOs with tag_invoke. But IMO it's a lot better than anything else anyone has ever created, and users usually don't need to define new CPOs, only library writers do, so there's that.
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Why do we need networking, executors, linear algebra, etc in the Standard Library?
A work in progress implementation of the library: https://github.com/facebookexperimental/libunifex
eCAL
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eCAL ipc framework
New version (5.94) of the high performance interprocess / interhost communication framework eCAL is available. eCAL supports different transport layer like shared memory for interprocess and udp multicast for interhost communication. It does not force the user to use a specific serialization format but supports some of the standards like google protobuf, capnproto or flatbuffers. The API is wrapped to C, C++, Python, C#, Rust and Go (the last two I never tested ;-)). Here you can find all the documentation. Check out the great applications for monitoring, record and replay. eCAL is Apache 2 licensed, repository hosted here. Have fun :-)
- eCAL 5.9.4 released
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Should I run ROS on windows, through WSL or on linux with dual boot?
I you just need a fast publish / subscribe framework for windows you can give eCAL a try. The setup is done in less a minute and their is no dependency hell. Just to mention it as alternative. Documentation here
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Google Protobuf vs JSON vs [insert candidate here]
I would concider using eCAL since it blasts everything out of the water in terms of performance and comes with some handy tooling for inspection of messages in-travel.
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eCAL 5.9.0 released
Source on GitHub: https://github.com/continental/ecal
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Sender and Receiver implementations
Check out eCal.
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grpc_bench: open-source, objective gRPC benchmark
This really makes me want to try https://github.com/continental/ecal with https://github.com/google/flatbuffers to see how they compare. I also know that gpc for cpp at least stops functioning by about 4 MB of request size. Which I find stupid. What if I want to send uncompressed bitmaps!
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Announcing Eclipse iceoryx 1.0.0
Congratulations. Well done. eCAL will update as soon as possible to the new release. The new custom header and the n:m pub/sub support are really welcome new features.
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Open source developers that work outside of a full time job, what motivates you?
Here is their counter callback example: https://github.com/continental/ecal/blob/master/samples/cpp/counter/counter_rec_cb/src/counter_rec_cb.cpp
What are some alternatives?
cppcoro - A library of C++ coroutine abstractions for the coroutines TS
ZeroMQ - ZeroMQ core engine in C++, implements ZMTP/3.1
concurrencpp - Modern concurrency for C++. Tasks, executors, timers and C++20 coroutines to rule them all
iceoryx - Eclipse iceoryxâ„¢ - true zero-copy inter-process-communication
Taskflow - A General-purpose Parallel and Heterogeneous Task Programming System
gRPC - The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
Restbed - Corvusoft's Restbed framework brings asynchronous RESTful functionality to C++14 applications.
cyclonedds - Eclipse Cyclone DDS project
corrade - C++11 multiplatform utility library
nanomsg - nanomsg library
Boost.Beast - HTTP and WebSocket built on Boost.Asio in C++11
rpclib - rpclib is a modern C++ msgpack-RPC server and client library