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Futures and promises

In computer science, futures, promises, delays, and deferreds are constructs used for synchronizing program execution in some concurrent programming languages. Each is an object that acts as a proxy for a result that is initially unknown, usually because the computation of its value is not yet complete.

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Overview

Applications

Implicit vs. explicit

Promise pipelining

Read-only views

Thread-specific futures

Blocking vs non-blocking semantics

Related constructs

Evaluation strategy

History

Coroutines

Channels

  • Channels Channel (programming)
  • Go Go (programming language)

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Map overview Semantic statistics

Futures and promises

Nodes88
Edges87
Triples73
Avg. degree1.98
Density0.022727
Components1

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Futures and promises

Top relations

related to List of library-based implementations of futures · 61
Futures and promises → Active Results, AngularJSnode-promiseQ, API, Apple GCDFutureLib, Async, BlackbirdEager Future2lparallelPCallFor, Bluebird, Boost, Built-in, CommonJS Promises/A, Concurrent RubyPromise, Cujo, Deferred, DeferredsFor, Dojo Toolkit, ES6, For Common Lisp, For Java, For Objective-C, For OCaml
has application · 2
Futures and promises → Futures, Later

Important terminology Word statistics

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Important terminology

promise future value futures promises languages pipelining programming concurrent read-only also example message needed used language return computation implemented support

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Ozinstance ofRead-only viewsIn some programming languages0.80text
Einstance ofRead-only viewsIn some programming languages0.80text
and AmbientTalkinstance ofRead-only viewsIn some programming languages0.80text
it is possible to obtain a read-only view of a futureinstance ofRead-only viewsIn some programming languages0.80text
which allows reading its value when resolvedinstance ofRead-only viewsIn some programming languages0.80text
but does not permit resolving itinstance ofRead-only viewsIn some programming languages0.80text
pure actor languages.Howeverinstance ofThis is the only case to be considered in purely asynchronous systems0.80text
in some systems it may also be possible to attempt to immediately or synchronously access a future's valueinstance ofThis is the only case to be considered in purely asynchronous systems0.80text
MultiLispinstance ofHistoryThe future and/or promise constructs were first implemented in programming languages0.80text
Act 1instance ofHistoryThe future and/or promise constructs were first implemented in programming languages0.80text
Futures and promiseshas applicationFutures0.60section
Futures and promiseshas applicationLater0.60section

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