reagents
mirage
reagents | mirage | |
---|---|---|
2 | 32 | |
126 | 2,433 | |
-0.8% | 0.5% | |
4.4 | 8.7 | |
12 months ago | 5 days ago | |
OCaml | OCaml | |
ISC License | ISC License |
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reagents
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Transputer.net
The 1978 paper proposes a reasonable set of primitives and then walks through prose examples with them. The book proposes roughly the same primitives (channels are the big change, but stop is barely in the paper) and describes them in a formal notation for state machines. It's the difference between a sketch of a plausible idea and writing down the mathematics.
Related though much later, ocaml https://github.com/ocaml-multicore/reagents observed that the send/recv primitives make less sense than a swap primitive. Between occam and the current ocaml effort, concurrent ML is the same sort of model with the details really well thought through (e.g. a thread executing stop gets garbage collected).
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OCaml 5.0 Multicore is out
Still early days, but I had done some exploratory work in the past on Reagents, a composable lock-free library [1]. Now that OCaml 5 is released, we're reviving this work.
It's semantics is weaker than STM -- unlike STM, it doesn't provide serializability but Reagents can compile down to multi-word compare and swap operations, which can be implemented with the help of hardware transactions (when present) or efficient software implementations of it [2]. Hence, Reagent programs should be faster than STM.
[1] https://github.com/ocaml-multicore/reagents
mirage
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Gokrazy – Go Appliances
Interesting, and thanks.
I didn't know about those. I kind of thought you may have used MirageOS, which I had read about earlier. It is done in OCaml.
https://mirage.io/
- Mirage – A programming framework for building type-safe, modular systems
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What's Zig got that C, Rust and Go don't have? [video]
Unix system programming in OCaml (2014)
https://ocaml.github.io/ocamlunix/
"MirageOS is a library operating system that constructs unikernels for secure, high-performance network applications across a variety of cloud computing and mobile platforms."
https://mirage.io/
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PostgreSQL reconsiders its process-based model
That was/is part of the promise of the whole unikernel thing, no?
https://mirage.io/ or similar could then let you boot your database. That said, it's not really taken off from what I can tell, so I'm guessing there's more to it than that.
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Writing an OS in Rust to run on RISC-V
MirageOS is not Rust, but in the ballpark!
https://mirage.io/
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Container runtime as a static binary?
OCaml MirageOS? https://mirage.io/
- OCaml 5.0 Multicore is out
- Ask HN: Operating Systems built with functional languages?
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Is there an operating systems that is a runtime of a programming language?
MirageOS is a runtime for OCaml to create unikernels. They describe themselves as "library operating system". Probably not quite what you were asking for, but I think it's quite interesting for certain use cases (e.g. running services as standalone unikernels in VMs or embedded devices instead of "traditional" programs on top of a general purpose OS).
What are some alternatives?
rescript-webapi - ReScript bindings to the DOM and other Web APIs
unikraft - A next-generation cloud native kernel designed to unlock best-in-class performance, security primitives and efficiency savings.
oberon-riscv - Oberon RISC-V port, based on Samuel Falvo's RISC-V compiler and Peter de Wachter's Project Norebo. Part of an academic project to evaluate Project Oberon on RISC-V.
Carp - A statically typed lisp, without a GC, for real-time applications.
linuxkit - A toolkit for building secure, portable and lean operating systems for containers
Mezzano - An operating system written in Common Lisp
Lupine-Linux - Linux in Unikernel Clothing
console - a debugger for async rust!
tracing - Application level tracing for Rust.
ocamlformat - Auto-formatter for OCaml code
lib-python3 - Unikraft port of Python 3
opam - opam is a source-based package manager. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow.