diff --git a/index.js b/index.js index b084a6d..14b0a99 100644 --- a/index.js +++ b/index.js @@ -1,11 +1,24 @@ "use strict"; const propagateAbort = require("@promistream/propagate-abort"); - -const createSequentialQueue = require("./sequential-queue"); +const pushBuffer = require("push-buffer"); module.exports = function sequentialize() { - let withQueue = createSequentialQueue(); + let lastKnownSource; + + let readBuffer = pushBuffer({ + sequential: true, + pull: async () => { + return lastKnownSource.read(); + } + }); + + let peekBuffer = pushBuffer({ + sequential: true, + pull: async () => { + return lastKnownSource.peek(); + } + }); return { _promistreamVersion: 0, @@ -13,14 +26,12 @@ module.exports = function sequentialize() { // FIXME: We don't queue up aborts because once a downstream has encountered an error, it may have stopped trying to read, and we would deadlock. While the Aborted marker reads *do* get queued, the abort itself should probably be immediate. Need to make sure that this doesn't clash with any other part of the spec. abort: propagateAbort, peek: function peek(source) { - return withQueue(() => { - return source.peek(); - }); + lastKnownSource = source; + return peekBuffer.request(); }, read: function read(source) { - return withQueue(() => { - return source.read(); - }); + lastKnownSource = source; + return readBuffer.request(); } }; }; diff --git a/package.json b/package.json index 97348ee..e322735 100644 --- a/package.json +++ b/package.json @@ -9,6 +9,7 @@ "@joepie91/unreachable": "^1.0.0", "@promistream/propagate-abort": "^0.1.2", "bluebird": "^3.5.4", - "p-defer": "^3.0.0" + "p-defer": "^3.0.0", + "push-buffer": "^1.1.1" } } diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml new file mode 100644 index 0000000..bf9f0e9 --- /dev/null +++ b/pnpm-lock.yaml @@ -0,0 +1,464 @@ +lockfileVersion: '6.0' + +settings: + autoInstallPeers: true + excludeLinksFromLockfile: false + +dependencies: + '@joepie91/unreachable': + specifier: ^1.0.0 + version: 1.0.0 + '@promistream/propagate-abort': + specifier: ^0.1.2 + version: 0.1.7 + bluebird: + specifier: ^3.5.4 + version: 3.7.2 + p-defer: + specifier: ^3.0.0 + version: 3.0.0 + push-buffer: + specifier: ^1.1.1 + version: 1.1.1 + +packages: + + /@joepie91/promise-defer@1.0.1: + resolution: {integrity: sha512-yjDrKMpO155Ajmk+r3RG4WNGbrwd4Mj8UHqJtBSoIL9usT6cC0jhy1yn7dzJiKmYFxvCvgxDbjcWNFNCwQ9UUw==} + dev: false + + /@joepie91/unreachable@1.0.0: + resolution: {integrity: sha512-vZRJ5UDq4mqP1vgSrcOLD3aIfS/nzwsvGFOOHv5sj5fa1Ss0dT1xnIzrXKLD9pu5EcUvF3K6n6jdaMW8uXpNEQ==} + dev: false + + /@promistream/no-value@1.0.0: + resolution: {integrity: sha512-PY/1gj60YKRRpzLY0UyM/b1OzXZS+5lvrVMrU3BzjTDv31P0EaCAb2X39DKQAfoX0ygiXOHewCaLVX1/+IZsTA==} + dev: false + + /@promistream/propagate-abort@0.1.7: + resolution: {integrity: sha512-BR0XZMirAjO1IRpyTtOG4n0fGuuvRGJsO8Hmn4HOJXhi10onX3GlfCNZN2tqe4Mq/5fEDgRNGNUHjCY7naDYUA==} + dev: false + + /@validatem/annotate-errors@0.1.2: + resolution: {integrity: sha512-EuX7pzdYI/YpTmZcgdPG481Oi3elAg8JWh/LYXuE1h6MaZk3A8eP5DD33/l7EoKzrysn6y8nCsqNa1ngei562w==} + dependencies: + '@validatem/match-validation-error': 0.1.0 + dev: false + + /@validatem/any-property@0.1.3: + resolution: {integrity: sha512-jYWxif5ff9pccu7566LIQ/4+snlApXEJUimBywzAriBgS3r4eDBbz3oZFHuiPmhxNK/NNof5YUS+L6Sk3zaMfg==} + dependencies: + '@validatem/annotate-errors': 0.1.2 + '@validatem/combinator': 0.1.2 + '@validatem/error': 1.1.0 + '@validatem/validation-result': 0.1.2 + '@validatem/virtual-property': 0.1.0 + default-value: 1.0.0 + dev: false + + /@validatem/combinator@0.1.2: + resolution: {integrity: sha512-vE8t1tNXknmN62FlN6LxQmA2c6TwVKZ+fl/Wit3H2unFdOhu7SZj2kRPGjAXdK/ARh/3svYfUBeD75pea0j1Sw==} + dev: false + + /@validatem/core@0.5.0: + resolution: {integrity: sha512-hLEdoRFRvFGUqHFFK0eR8r7sTJaqQjzB81FVMp86esZJiBrblnWhpZtzVouguoaAaKFX9oiWI3nAQc73xYrTJg==} + dependencies: + '@validatem/annotate-errors': 0.1.2 + '@validatem/any-property': 0.1.3 + '@validatem/error': 1.1.0 + '@validatem/match-validation-error': 0.1.0 + '@validatem/match-versioned-special': 0.1.1 + '@validatem/match-virtual-property': 0.1.0 + '@validatem/normalize-rules': 0.1.3 + '@validatem/required': 0.1.1 + '@validatem/validation-result': 0.1.2 + '@validatem/virtual-property': 0.1.0 + as-expression: 1.0.0 + assure-array: 1.0.0 + create-error: 0.3.1 + default-value: 1.0.0 + execall: 2.0.0 + indent-string: 4.0.0 + is-arguments: 1.1.1 + supports-color: 7.2.0 + syncpipe: 1.0.0 + dev: false + + /@validatem/default-to@0.1.0: + resolution: {integrity: sha512-UE/mJ6ZcHFlBLUhX75PQHDRYf80GFFhB+vZfIcsEWduh7Nm6lTMDnCPj4MI+jd9E/A7HV5D1yCZhaRSwoWo4vg==} + dependencies: + is-callable: 1.2.7 + dev: false + + /@validatem/dynamic@0.1.2: + resolution: {integrity: sha512-TNZMUO9McL2kFYdLWTYSD+zxxZ9fbK9Si+3X5u/JngOWAq7PFxbU7o2oxREkwiSIZi5cjBCK/hvrZMWyl+FWEA==} + dependencies: + '@validatem/combinator': 0.1.2 + dev: false + + /@validatem/error@1.1.0: + resolution: {integrity: sha512-gZJEoZq1COi/8/5v0fVKQ9uX54x5lb5HbV7mzIOhY6dqjmLNfxdQmpECZPQrCAOpcRkRMJ7zaFhq4UTslpY9yA==} + dev: false + + /@validatem/has-shape@0.1.8: + resolution: {integrity: sha512-x2i8toW1uraFF2Vl6WBl4CScbBeg5alrtoCKMyXbJkHf2B5QxL/ftUh2RQRcBzx6U0i7KUb8vdShcWAa+fehRQ==} + dependencies: + '@validatem/annotate-errors': 0.1.2 + '@validatem/combinator': 0.1.2 + '@validatem/error': 1.1.0 + '@validatem/validation-result': 0.1.2 + array-union: 2.1.0 + as-expression: 1.0.0 + assure-array: 1.0.0 + default-value: 1.0.0 + flatten: 1.0.3 + dev: false + + /@validatem/is-boolean@0.1.1: + resolution: {integrity: sha512-eIFq+mCBEDgAp4ezaPn1mbVZd2H+IkQG3CcEFnLSlqfg1XKY5uv8AOI08+UqeWS+C7AIFk3rEqRg63+OuPCpsg==} + dependencies: + '@validatem/error': 1.1.0 + is-boolean-object: 1.1.2 + dev: false + + /@validatem/is-function@0.1.0: + resolution: {integrity: sha512-UtVrwTGhaIdIJ0mPG5XkAmYZUeWgRoMP1G9ZEHbKvAZJ4+SXf/prC0jPgE0pw+sPjdQG4hblsXSfo/9Bf3PGdQ==} + dependencies: + '@validatem/error': 1.1.0 + is-callable: 1.2.7 + dev: false + + /@validatem/is-integer@0.1.0: + resolution: {integrity: sha512-sSp66uxfirIFMqro64DAdfM+UKo+IICmHdy/x3ZJXUM9F4byz/GyFmhR4wfcQswywwF1fqKw9458GE38fozjOQ==} + dependencies: + '@validatem/error': 1.1.0 + '@validatem/is-number': 0.1.3 + dev: false + + /@validatem/is-number@0.1.3: + resolution: {integrity: sha512-GjnbKYfYa0cTCJmsr5OUbylxTKHHZ6FDtJixWl+lEuXzeELDoYRp2UAjzfjTXJ9g2BumESqI/t0hap5rw5tEyQ==} + dependencies: + '@validatem/error': 1.1.0 + is-number-object: 1.0.7 + dev: false + + /@validatem/is-plain-object@0.1.1: + resolution: {integrity: sha512-aNGbNIbKRpYI0lRBczlTBbiA+nqN52ADAASdySKg2/QeSCVtYS4uOIeCNIJRAgXe/5sUnLTuL4pgq628uAl7Kw==} + dependencies: + '@validatem/error': 1.1.0 + is-plain-obj: 2.1.0 + dev: false + + /@validatem/match-special@0.1.0: + resolution: {integrity: sha512-TFiq9Wk/1Hoja4PK85WwNYnwBXk3+Lgoj59ZIMxm2an1qmNYp8j+BnSvkKBflba451yIn6V1laU9NJf+/NYZgw==} + dev: false + + /@validatem/match-validation-error@0.1.0: + resolution: {integrity: sha512-6akGTk7DdulOreyqDiGdikwRSixQz/AlvARSX18dcWaTFc79KxCLouL2hyoFcor9IIUhu5RTY4/i756y4T1yxA==} + dependencies: + '@validatem/match-versioned-special': 0.1.1 + dev: false + + /@validatem/match-versioned-special@0.1.1: + resolution: {integrity: sha512-RRNeFSgzqSo0sKck/92a+yC9zKdt+DD6y4TK70+VDKVppdWsb8YzC/FBTucseN1OYrr1KcBPKNVZePg1NTROYw==} + dev: false + + /@validatem/match-virtual-property@0.1.0: + resolution: {integrity: sha512-ssd3coFgwbLuqvZftLZTy3eHN0TFST8oTS2XTViQdXJPXVoJmwEKBpFhXgwnb5Ly1CE037R/KWpjhd1TP/56kQ==} + dev: false + + /@validatem/normalize-rules@0.1.3: + resolution: {integrity: sha512-HHPceAP2ce9NWymIZrgLCTzpdwXNRBCCB5H6ZPc5ggOrbmh4STpT83fLazleHtvYNlqgXZ4GjQOvCwrjaM+qEA==} + dependencies: + '@validatem/has-shape': 0.1.8 + '@validatem/is-plain-object': 0.1.1 + '@validatem/match-special': 0.1.0 + assure-array: 1.0.0 + default-value: 1.0.0 + flatten: 1.0.3 + is-plain-obj: 2.1.0 + dev: false + + /@validatem/one-of@0.1.1: + resolution: {integrity: sha512-lIgxnkNRouPx5Ydddi8OaAxmzp1ox44OJnrJPRrJkU4ccz9Yb7GSJ+wQJNVkAZCar+DGTDMoXoy51NwDnsf4sw==} + dependencies: + '@validatem/error': 1.1.0 + dev: false + + /@validatem/required@0.1.1: + resolution: {integrity: sha512-vI4NzLfay4RFAzp7xyU34PHb8sAo6w/3frrNh1EY9Xjnw2zxjY5oaxwmbFP1jVevBE6QQEnKogtzUHz/Zuvh6g==} + dev: false + + /@validatem/validation-result@0.1.2: + resolution: {integrity: sha512-okmP8JarIwIgfpaVcvZGuQ1yOsLKT3Egt49Ynz6h1MAeGsP/bGHXkkXtbiWOVsk5Tzku5vDVFSrFnF+5IEHKxw==} + dependencies: + default-value: 1.0.0 + dev: false + + /@validatem/virtual-property@0.1.0: + resolution: {integrity: sha512-JUUvWtdqoSkOwlsl20oB3qFHYIL05a/TAfdY4AJcs55QeVTiX5iI1b8IoQW644sIWWooBuLv+XwoxjRsQFczlQ==} + dev: false + + /array-union@2.1.0: + resolution: {integrity: sha512-HGyxoOTYUyCM6stUe6EJgnd4EoewAI7zMdfqO+kGjnlZmBDz/cR5pf8r/cR4Wq60sL/p0IkcjUEEPwS3GFrIyw==} + engines: {node: '>=8'} + dev: false + + /as-expression@1.0.0: + resolution: {integrity: sha512-Iqh4GxNUfxbJdGn6b7/XMzc8m1Dz2ZHouBQ9DDTzyMRO3VPPIAXeoY/sucRxxxXKbUtzwzWZSN6jPR3zfpYHHA==} + dev: false + + /assure-array@1.0.0: + resolution: {integrity: sha512-igvOvGYidAcJKr6YQIHzLivUpAdqUfi7MN0QfrEnFtifQvuw6D0W4oInrIVgTaefJ+QBVWAj8ZYuUGNnwq6Ydw==} + dev: false + + /bluebird@3.7.2: + resolution: {integrity: sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==} + dev: false + + /call-bind@1.0.7: + resolution: {integrity: sha512-GHTSNSYICQ7scH7sZ+M2rFopRoLh8t2bLSW6BbgrtLsahOIB5iyAVJf9GjWK3cYTDaMj4XdBpM1cA6pIS0Kv2w==} + engines: {node: '>= 0.4'} + dependencies: + es-define-property: 1.0.0 + es-errors: 1.3.0 + function-bind: 1.1.2 + get-intrinsic: 1.2.4 + set-function-length: 1.2.2 + dev: false + + /capture-promise@1.0.0: + resolution: {integrity: sha512-40FXZr0YaUWw2q6T8DcUOIF885saJni87ZbAOXkwDB14nMl6M1vIYAKUs2BjoeMyqnv3PGqEcDskGUXvgNIbZw==} + dev: false + + /clone-regexp@2.2.0: + resolution: {integrity: sha512-beMpP7BOtTipFuW8hrJvREQ2DrRu3BE7by0ZpibtfBA+qfHYvMGTc2Yb1JMYPKg/JUw0CHYvpg796aNTSW9z7Q==} + engines: {node: '>=6'} + dependencies: + is-regexp: 2.1.0 + dev: false + + /create-error@0.3.1: + resolution: {integrity: sha512-n/Q4aSCtYuuDneEW5Q+nd0IIZwbwmX/oF6wKcDUhXGJNwhmp2WHEoWKz7X+/H7rBtjimInW7f0ceouxU0SmuzQ==} + dev: false + + /debug@4.3.5: + resolution: {integrity: sha512-pt0bNEmneDIvdL1Xsd9oDQ/wrQRkXDT4AUWlNZNPKvW5x/jyO9VFXkJUP07vQ2upmw5PlaITaPKc31jK13V+jg==} + engines: {node: '>=6.0'} + peerDependencies: + supports-color: '*' + peerDependenciesMeta: + supports-color: + optional: true + dependencies: + ms: 2.1.2 + dev: false + + /default-value@1.0.0: + resolution: {integrity: sha512-y6j7G55tgWG7nfjXUNy/WkTLGExiPEUlhGv0zqgqKdlOwJnDDy/dbk7yCozn4biAGIRnMI+9fyZ1V2fZ7tjp6Q==} + dependencies: + es6-promise-try: 0.0.1 + dev: false + + /define-data-property@1.1.4: + resolution: {integrity: sha512-rBMvIzlpA8v6E+SJZoo++HAYqsLrkg7MSfIinMPFhmkorw7X+dOXVJQs+QT69zGkzMyfDnIMN2Wid1+NbL3T+A==} + engines: {node: '>= 0.4'} + dependencies: + es-define-property: 1.0.0 + es-errors: 1.3.0 + gopd: 1.0.1 + dev: false + + /es-define-property@1.0.0: + resolution: {integrity: sha512-jxayLKShrEqqzJ0eumQbVhTYQM27CfT1T35+gCgDFoL82JLsXqTJ76zv6A0YLOgEnLUMvLzsDsGIrl8NFpT2gQ==} + engines: {node: '>= 0.4'} + dependencies: + get-intrinsic: 1.2.4 + dev: false + + /es-errors@1.3.0: + resolution: {integrity: sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==} + engines: {node: '>= 0.4'} + dev: false + + /es6-promise-try@0.0.1: + resolution: {integrity: sha512-T6f3cNyF8y+3uua2IDGpGmeoDe2w7PXGfPGS94TyLfQLPzYVvZUfM8dQuN4DuVXpelK4tg9F7zKzZHzNS2f2IQ==} + dev: false + + /execall@2.0.0: + resolution: {integrity: sha512-0FU2hZ5Hh6iQnarpRtQurM/aAvp3RIbfvgLHrcqJYzhXyV2KFruhuChf9NC6waAhiUR7FFtlugkI4p7f2Fqlow==} + engines: {node: '>=8'} + dependencies: + clone-regexp: 2.2.0 + dev: false + + /flatten@1.0.3: + resolution: {integrity: sha512-dVsPA/UwQ8+2uoFe5GHtiBMu48dWLTdsuEd7CKGlZlD78r1TTWBvDuFaFGKCo/ZfEr95Uk56vZoX86OsHkUeIg==} + deprecated: flatten is deprecated in favor of utility frameworks such as lodash. + dev: false + + /function-bind@1.1.2: + resolution: {integrity: sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==} + dev: false + + /get-intrinsic@1.2.4: + resolution: {integrity: sha512-5uYhsJH8VJBTv7oslg4BznJYhDoRI6waYCxMmCdnTrcCrHA/fCFKoTFz2JKKE0HdDFUF7/oQuhzumXJK7paBRQ==} + engines: {node: '>= 0.4'} + dependencies: + es-errors: 1.3.0 + function-bind: 1.1.2 + has-proto: 1.0.3 + has-symbols: 1.0.3 + hasown: 2.0.2 + dev: false + + /gopd@1.0.1: + resolution: {integrity: sha512-d65bNlIadxvpb/A2abVdlqKqV563juRnZ1Wtk6s1sIR8uNsXR70xqIzVqxVf1eTqDunwT2MkczEeaezCKTZhwA==} + dependencies: + get-intrinsic: 1.2.4 + dev: false + + /has-flag@4.0.0: + resolution: {integrity: sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==} + engines: {node: '>=8'} + dev: false + + /has-property-descriptors@1.0.2: + resolution: {integrity: sha512-55JNKuIW+vq4Ke1BjOTjM2YctQIvCT7GFzHwmfZPGo5wnrgkid0YQtnAleFSqumZm4az3n2BS+erby5ipJdgrg==} + dependencies: + es-define-property: 1.0.0 + dev: false + + /has-proto@1.0.3: + resolution: {integrity: sha512-SJ1amZAJUiZS+PhsVLf5tGydlaVB8EdFpaSO4gmiUKUOxk8qzn5AIy4ZeJUmh22znIdk/uMAUT2pl3FxzVUH+Q==} + engines: {node: '>= 0.4'} + dev: false + + /has-symbols@1.0.3: + resolution: {integrity: sha512-l3LCuF6MgDNwTDKkdYGEihYjt5pRPbEg46rtlmnSPlUbgmB8LOIrKJbYYFBSbnPaJexMKtiPO8hmeRjRz2Td+A==} + engines: {node: '>= 0.4'} + dev: false + + /has-tostringtag@1.0.2: + resolution: {integrity: sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==} + engines: {node: '>= 0.4'} + dependencies: + has-symbols: 1.0.3 + dev: false + + /hasown@2.0.2: + resolution: {integrity: sha512-0hJU9SCPvmMzIBdZFqNPXWa6dqh7WdH0cII9y+CyS8rG3nL48Bclra9HmKhVVUHyPWNH5Y7xDwAB7bfgSjkUMQ==} + engines: {node: '>= 0.4'} + dependencies: + function-bind: 1.1.2 + dev: false + + /indent-string@4.0.0: + resolution: {integrity: sha512-EdDDZu4A2OyIK7Lr/2zG+w5jmbuk1DVBnEwREQvBzspBJkCEbRa8GxU1lghYcaGJCnRWibjDXlq779X1/y5xwg==} + engines: {node: '>=8'} + dev: false + + /is-arguments@1.1.1: + resolution: {integrity: sha512-8Q7EARjzEnKpt/PCD7e1cgUS0a6X8u5tdSiMqXhojOdoV9TsMsiO+9VLC5vAmO8N7/GmXn7yjR8qnA6bVAEzfA==} + engines: {node: '>= 0.4'} + dependencies: + call-bind: 1.0.7 + has-tostringtag: 1.0.2 + dev: false + + /is-boolean-object@1.1.2: + resolution: {integrity: sha512-gDYaKHJmnj4aWxyj6YHyXVpdQawtVLHU5cb+eztPGczf6cjuTdwve5ZIEfgXqH4e57An1D1AKf8CZ3kYrQRqYA==} + engines: {node: '>= 0.4'} + dependencies: + call-bind: 1.0.7 + has-tostringtag: 1.0.2 + dev: false + + /is-callable@1.2.7: + resolution: {integrity: sha512-1BC0BVFhS/p0qtw6enp8e+8OD0UrK0oFLztSjNzhcKA3WDuJxxAPXzPuPtKkjEY9UUoEWlX/8fgKeu2S8i9JTA==} + engines: {node: '>= 0.4'} + dev: false + + /is-number-object@1.0.7: + resolution: {integrity: sha512-k1U0IRzLMo7ZlYIfzRu23Oh6MiIFasgpb9X76eqfFZAqwH44UI4KTBvBYIZ1dSL9ZzChTB9ShHfLkR4pdW5krQ==} + engines: {node: '>= 0.4'} + dependencies: + has-tostringtag: 1.0.2 + dev: false + + /is-plain-obj@2.1.0: + resolution: {integrity: sha512-YWnfyRwxL/+SsrWYfOpUtz5b3YD+nyfkHvjbcanzk8zgyO4ASD67uVMRt8k5bM4lLMDnXfriRhOpemw+NfT1eA==} + engines: {node: '>=8'} + dev: false + + /is-regexp@2.1.0: + resolution: {integrity: sha512-OZ4IlER3zmRIoB9AqNhEggVxqIH4ofDns5nRrPS6yQxXE1TPCUpFznBfRQmQa8uC+pXqjMnukiJBxCisIxiLGA==} + engines: {node: '>=6'} + dev: false + + /ms@2.1.2: + resolution: {integrity: sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==} + dev: false + + /p-defer@3.0.0: + resolution: {integrity: sha512-ugZxsxmtTln604yeYd29EGrNhazN2lywetzpKhfmQjW/VJmhpDmWbiX+h0zL8V91R0UXkhb3KtPmyq9PZw3aYw==} + engines: {node: '>=8'} + dev: false + + /push-buffer@1.1.1: + resolution: {integrity: sha512-K7pUfiHoobqHkYAlpvSHaJ7GED0gGoKj9R5BgxMzkmldPrsL6EJQr5KBFYFV2fYqDK5hIllOQySb6ftM3oAG9w==} + dependencies: + '@joepie91/promise-defer': 1.0.1 + '@promistream/no-value': 1.0.0 + '@validatem/core': 0.5.0 + '@validatem/default-to': 0.1.0 + '@validatem/dynamic': 0.1.2 + '@validatem/is-boolean': 0.1.1 + '@validatem/is-function': 0.1.0 + '@validatem/is-integer': 0.1.0 + '@validatem/one-of': 0.1.1 + '@validatem/required': 0.1.1 + assure-array: 1.0.0 + capture-promise: 1.0.0 + debug: 4.3.5 + single-concurrent: 1.0.0 + transitivePeerDependencies: + - supports-color + dev: false + + /set-function-length@1.2.2: + resolution: {integrity: sha512-pgRc4hJ4/sNjWCSS9AmnS40x3bNMDTknHgL5UaMBTMyJnU90EgWh1Rz+MC9eFu4BuN/UwZjKQuY/1v3rM7HMfg==} + engines: {node: '>= 0.4'} + dependencies: + define-data-property: 1.1.4 + es-errors: 1.3.0 + function-bind: 1.1.2 + get-intrinsic: 1.2.4 + gopd: 1.0.1 + has-property-descriptors: 1.0.2 + dev: false + + /single-concurrent@1.0.0: + resolution: {integrity: sha512-lYx5vhQB1jhpVnS11rAZLTDId3E3cJFCteOvl6tsXmRPm1hfCQGFXFAgP12gUQJ4MRh3Cvt8eXwmnE8RIimzGw==} + dependencies: + '@validatem/core': 0.5.0 + '@validatem/is-function': 0.1.0 + '@validatem/required': 0.1.1 + capture-promise: 1.0.0 + debug: 4.3.5 + transitivePeerDependencies: + - supports-color + dev: false + + /supports-color@7.2.0: + resolution: {integrity: sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==} + engines: {node: '>=8'} + dependencies: + has-flag: 4.0.0 + dev: false + + /syncpipe@1.0.0: + resolution: {integrity: sha512-cdiAFTnFJRvUaNPDc2n9CqoFvtIL3+JUMJZrC3kA3FzpugHOqu0TvkgNwmnxPZ5/WjAzMcfMS3xm+AO7rg/j/w==} + dependencies: + assure-array: 1.0.0 + dev: false diff --git a/sequential-queue.js b/sequential-queue.js deleted file mode 100644 index 3dbccd2..0000000 --- a/sequential-queue.js +++ /dev/null @@ -1,51 +0,0 @@ -"use strict"; - -// FIXME: Make this a stand-alone package; it should be useful as a general-purpose mechanism for sequentializing multiple asynchronous operations that may originate from multiple different callsites (like with read/peek/abort) - -const Promise = require("bluebird"); -const pDefer = require("p-defer"); -const unreachable = require("@joepie91/unreachable")("@promistream/sequentialize"); // FIXME: Change name when moved out into a stand-alone package - -module.exports = function createSequentialQueue() { - /* TODO: Does this need a more efficient FIFO queue implementation? */ - let queue = []; - let processing = false; - - function nextItem() { - if (queue.length > 0) { - let item = queue.shift(); - item(); - } else { - unreachable("Tried to process an item from an empty queue"); - } - } - - function tryStart() { - if (processing === false) { - processing = true; - nextItem(); - } - } - - function markCompleted() { - if (queue.length > 0) { - nextItem(); - } else { - processing = false; - } - } - - return function withQueue(callback) { - let { resolve, promise } = pDefer(); - queue.push(resolve); - tryStart(); - - return Promise.try(() => { - return promise; - }).then(() => { - return callback(); - }).tap(() => { - markCompleted(); - }); - }; -}