ProfHewitt·il y a 4 ans·discussActorsTheory serves as the rigorous mathematical foundations of capability systems.
ProfHewitt·il y a 4 ans·discussFoundation is about rigorously specifying the general Laws of Locality for Actor systems that CHERI implements.
ProfHewitt·il y a 4 ans·discussGreat to see further progress on CHERI!See the following for theoretical foundations for the work:Linux 60th Anniversary Keynotehttps://t.co/IRe3vpMlWn
ProfHewitt·il y a 5 ans·discussInteresting article.Mathematical foundations are needed that are much more suitable to modern Computer Science than using "universes".For an example see the following article:https://papers.ssrn.com/abstract=3603021Also, see the following video:https://www.youtube.com/watch?v=AJP1VL7shiI
ProfHewitt·il y a 5 ans·discussComputer science theory didn't get harder.Instead, education became weaker :-(See following link for foundations of computer Science:https://www.youtube.com/watch?v=AJP1VL7shiI
ProfHewitt·il y a 5 ans·discussThe Actors Abstraction does not require specification ofcomputer boundaries.
ProfHewitt·il y a 5 ans·discussThe Actors Abstraction is foundational for computer scienceanalogous to the Natural Numbers in classical mathematics.
ProfHewitt·il y a 5 ans·discussProbably not a good idea to burden application programmerswith having to annotate each message send with whether thereceiver is on the current computer or another one in aCitadel.Since Actors can move between computers in a Citadel, suchannotations are infeasible in practice.Of course, modularity, security, and performance should not beignored.
ProfHewitt·il y a 5 ans·discussSee the following for a rigorous definition of the Actors Abstraction:https://papers.ssrn.com/abstract=3418003
ProfHewitt·il y a 5 ans·discussProbably can't make much progress without a scientific foundation including the Actors Abstraction.
ProfHewitt·il y a 5 ans·discussThe Actor Paradigm is much more widespread with offerings from Microsoft, Lightbend, etc.
ProfHewitt·il y a 5 ans·discussI fondly remember Joe Armstrong, who was a good friend.However, not having a mathematical foundation has been asevere limitation for Erlang.The Erlang community is trying to dig its way out withmodifications and extensions. Still have a long way to go.Of course, no Actors framework is perfect.Many important implementations have been done Erlang.Also, significant Erlang projects are ongoing to good effect.
ProfHewitt·il y a 5 ans·discussIn a Citadel, distributed Actors are going to be necessary.See the following: Citadels: faster response time and better information integration than remote datacenters https://papers.ssrn.com/abstract=2836282
ProfHewitt·il y a 5 ans·discussErlang incorporated some of the ideas of the Actor Abstractionbut missed a few things. SeeSee article and video here:https://papers.ssrn.com/abstract=3603021https://www.youtube.com/watch?v=AJP1VL7shiI
ProfHewitt·il y a 5 ans·discussSwift Actors are an important contribution to the Actor Paradigm.There is is an upcoming keynote address on the Actor Paradigm at the Linux 30th Anniversary Conference. Seehttps://reactivesummit2021.sched.com
ProfHewitt·il y a 5 ans·discussBoth ASIO and Sender/Receiver are not a suitable foundation for concurrency in C++.
ProfHewitt·il y a 5 ans·discussAs dueling co-routine proposals neither ASIO nor Sender/Receiver are a suitable foundation for C++ semantics.