In computing, a computer program or subroutine is called reentrant if multiple invocations can safely run concurrently on multiple processors, or on a single processor system, where a reentrant procedure can be interrupted in the middle of its execution and then safely be called again ("re-entered") before its previous invocations complete execution. The interruption could be caused by an internal action such as a jump or call, or by an external action such as an interrupt or signal, unlike recursion, where new invocations can only be caused by internal call. This definition originates from multiprogramming environments where multiple processes may be active concurrently and where the flow of control could be interrupted by an interrupt and transferred to an interrupt service routine (ISR) or "handler" subroutine. Any subroutine used by the handler that could potentially have been executing when the interrupt was triggered should be reentrant. Similarly, code shared by two processors accessing shared data should be reentrant. Often, subroutines accessible via the operating system kernel are not reentrant. Hence, interrupt service routines are limited in the actions they can perform; for instance, they are usually restricted from accessing the file system and sometimes even from allocating memory. This definition of reentrancy differs from that of thread-safety in multi-threaded environments. A reentrant subroutine can achieve thread-safety, but being reentrant alone might not be sufficient to be thread-safe in all situations. Conversely, thread-safe code does not necessarily have to be reentrant (see below for examples). Other terms used for reentrant programs include "sharable code". Reentrant subroutines are sometimes marked in reference material as being "signal safe". Reentrant programs are often "pure procedures". (Wikipedia).
A new player in the frustrated game: the centred pyrochlore with metal-organic... by Ludovic Jaubert
PROGRAM FRUSTRATED METALS AND INSULATORS (HYBRID) ORGANIZERS Federico Becca (University of Trieste, Italy), Subhro Bhattacharjee (ICTS-TIFR, India), Yasir Iqbal (IIT Madras, India), Bella Lake (Helmholtz-Zentrum Berlin für Materialien und Energie, Germany), Yogesh Singh (IISER Mohali, In
From playlist FRUSTRATED METALS AND INSULATORS (HYBRID, 2022)
Recursively Defined Sets - An Intro
Recursively defined sets are an important concept in mathematics, computer science, and other fields because they provide a framework for defining complex objects or structures in a simple, iterative way. By starting with a few basic objects and applying a set of rules repeatedly, we can g
From playlist All Things Recursive - with Math and CS Perspective
Webinar: Reentry programming requires action from individuals, institutions, and communities
Presented by Phil DeVol
From playlist Free Webinar Series
Ethereum Q&A: We are All Blockchain Weirdos
Is the antagonism between Bitcoin and Ethereum harmful? This is a natural process of mutation, fragmentation, bifurcation, and consolidation in a dynamic open-source environment. Keep in mind that the bankers and regulators think we are all blockchain weirdos; their protectionist instincts
From playlist How to Join the Industry
Ethereum Q&A: Smart Contracts and Law Ambiguity
Why is "smart contract" a confusing term? Are smart contracts legally enforceable if people don't understand how they are executed? Could we make human-readable smart contracts, reconciling the ambiguity of real-world law vs. code law? Note: Apologies for the weird discoloration in the be
From playlist English Subtitles - aantonop Videos with subtitles in English
Ethereum Q&A: Governance Scalability and Asymmetric Power
Thoughts on the state of electoral politics? Currently dealing with the scalability problems of democracy in a connected transnational sphere. Why should we wish for aliens or government backlash? Are there "left" versus "right" political leanings in the governance debate? How do we fix th
From playlist English Subtitles - aantonop Videos with subtitles in English
Can You Validate These Emails?
Email Validation is a procedure that verifies if an email address is deliverable and valid. Can you validate these emails?
From playlist Fun
Lec 15 | MIT 6.172 Performance Engineering of Software Systems, Fall 2010
Lecture 15: Nondeterministic Programming Instructor: Charles Leiserson View the complete course: http://ocw.mit.edu/6-172F10 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 6.172 Performance Engineering of Software Systems
Truffle Tutorial in Ethereum | Blockchain Training | Edureka | Blockchain Live - 3
🔥Edureka Blockchain Training: https://www.edureka.co/blockchain-training This Edureka video on "Truffle Tutorial in Ethereum" will introduce you on how to use Truffle in Ethereum with hands-on. 🔴Subscribe to our channel to get video updates. Hit the subscribe button above: https://goo.gl/
From playlist Edureka Live Classes 2020
Sequences: Introduction to Solving Recurrence Relations
This video introduces solving recurrence relations by the methods of inspection, telescoping, and characteristic root technique. mathispower4u.com
From playlist Sequences (Discrete Math)
The idea of ‘atonement’ sounds very old-fashioned and is deeply rooted in religious tradition. To atone means, in essence, to acknowledge one’s capacity for wrongness and one’s readiness for apology and desire for change. It’s a concept that every society needs at its center. For gifts and
From playlist RELATIONSHIPS
Comparing Iterative and Recursive Factorial Functions
Comparing iterative and recursive factorial functions
From playlist Computer Science
Python programming tutorial: reload function
This video covers how to reload a module. This can be useful if the module is changed mid-script. This is possible to do within a loop, which makes live-edits and changes to core features of your program possible. Sentdex.com Facebook.com/sentdex Twitter.com/sentdex
From playlist Intermediate Python Tutorials
From playlist Week 4 2015 Shorts
Dr David Skinner - "Computers could have been different." - 1980s Home Computing Boom
Dr David Skinner of Anglia Ruskin University talks from an academic perspective about the 1980s home computing boom.
From playlist Viva Computer!
The Map of Quantum Computing | Quantum Computers Explained
An excellent summary of the field of quantum computing. Find out more about Qiskit at https://qiskit.org and their YouTube channel https://www.youtube.com/c/qiskit And get the poster here: https://store.dftba.com/collections/domain-of-science/products/map-of-quantum-computing With this vi
From playlist Quantum Physics Videos - Domain of Science
Celebrating a Third of a Century of Mathematica, and Looking Forward
While not quite October 23, 2021 12:00:00 PM PDT (June 23rd at Noon PDT the official launch date), we're celebrating Mathematica's 1/3 century birthday! Blog available here: https://writings.stephenwolfram.com/2021/10/celebrating-a-third-of-a-century-of-mathematica-and-looking-forward Or
From playlist Stephen Wolfram Livestreams
Computer Science Vs Computer Engineering: How to Pick the Right Major
STEMerch Store: https://stemerch.com/Support the Channel: https://www.patreon.com/zachstar PayPal(one time donation): https://www.paypal.me/ZachStarYT Versión en español de este video: https://www.youtube.com/watch?v=vxxTQaMOMMk Computer Science Part 1 (Discrete Math): https://www.youtub
From playlist Computer Science/Computer Engineering
WebAssembly: The What, Why and How
WebAssembly is a portable, size, and load-time efficient binary format for the web. It is an emerging standard being developed in the WebAssembly community group, and supported by multiple browser vendors. This talk details what WebAssembly is, the problems it is trying to solve, exciting
From playlist Talks