From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: X-Spam-Status: No, score=-2.9 required=3.0 tests=AWL,BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_BL_SPAMCOP_NET,SPF_HELO_PASS, SPF_PASS,UNPARSEABLE_RELAY shortcircuit=no autolearn=no autolearn_force=no version=3.4.2 Received: from nue.mailmanlists.eu (nue.mailmanlists.eu [IPv6:2a01:4f8:1c0c:6b10::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 8A61B1F601 for ; Fri, 2 Dec 2022 09:34:55 +0000 (UTC) Authentication-Results: dcvr.yhbt.net; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ruby-lang.org header.i=@ruby-lang.org header.b="J1UPetOc"; dkim-atps=neutral Received: from nue.mailmanlists.eu (localhost [127.0.0.1]) by nue.mailmanlists.eu (Postfix) with ESMTP id 396EE7E6D4; Fri, 2 Dec 2022 09:34:46 +0000 (UTC) Authentication-Results: nue.mailmanlists.eu; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ruby-lang.org header.i=@ruby-lang.org header.a=rsa-sha256 header.s=s1 header.b=J1UPetOc; dkim-atps=neutral Received: from o1678948x4.outbound-mail.sendgrid.net (o1678948x4.outbound-mail.sendgrid.net [167.89.48.4]) by nue.mailmanlists.eu (Postfix) with ESMTPS id 4CCA17E6CC for ; Fri, 2 Dec 2022 09:34:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ruby-lang.org; h=from:references:subject:mime-version:content-type: content-transfer-encoding:list-id:to:cc:content-type:from:subject:to; s=s1; bh=Oe7mIKeEnun5BTNWX/cjrx1NCLpJx/1fe1DK+L7WsXU=; b=J1UPetOccpthteDmdd9QzQbJqfgvAFdgEXdO8jWkPnh0jjPpS7PfyYNLuLo4bxDfcuTp qhUnffSEn6IP7aOqt184D6QWIEu22mpT2W8H/0krNurnDm88D02vL98dTwg9dA/2lEQ0yH FBnI3ARCc/QF1OKzM9i2G0G26XSyx3TZK6avgF5THGLzAQ3S4UrbQgSNZOTX5usAo4x3tj Wpk83m23yUQ2oWz5oe4Mx+eouXj4eyUF1TWC1ouKbYLRhvQHtMNjoaDpwKmBL5eITFed3/ ePAnpE5QVEB4i/dW95t/is2q2Cr6NAYEVGq3usD0nB/QcRCeZh24/xwcEgRewyNw== Received: by filterdrecv-69c5db5cf4-r5pcf with SMTP id filterdrecv-69c5db5cf4-r5pcf-1-6389C6B0-19 2022-12-02 09:34:40.731424749 +0000 UTC m=+1247194.438879006 Received: from herokuapp.com (unknown) by geopod-ismtpd-4-6 (SG) with ESMTP id QG84ibBKSnWLprW42gKTrQ for ; Fri, 02 Dec 2022 09:34:40.710 +0000 (UTC) Date: Fri, 02 Dec 2022 09:34:40 +0000 (UTC) From: "ioquatix (Samuel Williams)" Message-ID: References: Mime-Version: 1.0 X-Redmine-Project: ruby-master X-Redmine-Issue-Tracker: Feature X-Redmine-Issue-Id: 19078 X-Redmine-Issue-Author: ioquatix X-Redmine-Issue-Assignee: ioquatix X-Redmine-Sender: ioquatix X-Mailer: Redmine X-Redmine-Host: bugs.ruby-lang.org X-Redmine-Site: Ruby Issue Tracking System X-Auto-Response-Suppress: All Auto-Submitted: auto-generated X-Redmine-MailingListIntegration-Message-Ids: 87499 X-SG-EID: =?us-ascii?Q?RXGrw3WrKfUduNFRrzMMcXYHKEABJI9T84jNjq2g6rBTg=2FXhHIicnPoJUXLutJ?= =?us-ascii?Q?tdNFg7BiEDMUtMCwjaLtb0ItKeRyv3NlZm6AYiJ?= =?us-ascii?Q?s0JX4N8GwgNVTPRAOM6P6a6uYVvE7cE9hQPtEpx?= =?us-ascii?Q?1vqDWbzlpsNsJULA2Xbersd92W65B7YCNrFkyqW?= =?us-ascii?Q?tFxGN5fz5FERcm0jyqCIe8FlLRxBFhC2y0BP4Dv?= =?us-ascii?Q?pn4it3ROHZtirWi+jAONcEUWToTrhH+TPHPb2pp?= =?us-ascii?Q?aiOVXPzj8=2FEi6Qo=2F99L+w=3D=3D?= To: ruby-core@ml.ruby-lang.org X-Entity-ID: b/2+PoftWZ6GuOu3b0IycA== Message-ID-Hash: UEXLMWZZQCW2CBTY4B74EFGTGDHWABFC X-Message-ID-Hash: UEXLMWZZQCW2CBTY4B74EFGTGDHWABFC X-MailFrom: bounces+313651-b711-ruby-core=ml.ruby-lang.org@em5188.ruby-lang.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.3 Precedence: list Reply-To: Ruby developers Subject: [ruby-core:111147] [Ruby master Feature#19078] Introduce `Fiber#storage` for inheritable fiber-scoped variables. List-Id: Ruby developers Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Issue #19078 has been updated by ioquatix (Samuel Williams). I made a compatibility shim for older Rubies. It's not 100% perfect, but it's close enough to be useful. https://github.com/ioquatix/fiber-storage ---------------------------------------- Feature #19078: Introduce `Fiber#storage` for inheritable fiber-scoped variables. https://bugs.ruby-lang.org/issues/19078#change-100431 * Author: ioquatix (Samuel Williams) * Status: Closed * Priority: Normal * Assignee: ioquatix (Samuel Williams) ---------------------------------------- Pull Request: https://github.com/ruby/ruby/pull/6612 This is an evolution of the previous ideas: - https://bugs.ruby-lang.org/issues/19058 - https://bugs.ruby-lang.org/issues/19062 This PR introduces fiber scoped variables, and is a solution for problems like . The main interface is: ```ruby Fiber[key] = value Fiber[key] # => value ``` The variables are scoped (local to) a fiber and inherited into child fibers and threads. ```ruby Fiber[:request_id] = SecureRandom.hex(16) Fiber.new do p Fiber[:request_id] # prints the above request id end ``` The fiber scoped variables are stored and can be accessed: ```ruby Fiber.current.storage # => returns a Hash (copy) of the internal storage. Fiber.current.storage= # => assigns a Hash (copy) to the internal storage. ``` Fiber itself has one new keyword argument: ``` Fiber.new(..., storage: hash, false, undef, nil) ``` This can control how the fiber variables are setup in a child context. To minimise the performance overhead of some of the implementation choices, we are also simultaneously implementing . ## Examples ### Request loop ```ruby Thread.new do while request = queue.pop Fiber.new(storage: {id: SecureRandom.hex(16)}) do handle_request.call(request) end end end ``` OR ```ruby Thread.new do while request = queue.pop Fiber.current.storage = {id: SecureRandom.hex(16)} handle_request.call(request) end end ``` -- https://bugs.ruby-lang.org/ ______________________________________________ ruby-core mailing list -- ruby-core@ml.ruby-lang.org To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org ruby-core info -- https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-core.ml.ruby-lang.org/