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| author | Adam Mathes <adam@adammathes.com> | 2026-02-14 14:46:37 -0800 |
|---|---|---|
| committer | Adam Mathes <adam@adammathes.com> | 2026-02-14 14:46:37 -0800 |
| commit | afa87af01c79a9baa539f2992d32154d2a4739bd (patch) | |
| tree | 92c7416db734270a2fee1d72ee9cc119379ff8e1 /vanilla/node_modules/undici/lib/dispatcher/balanced-pool.js | |
| parent | 3b927e84d200402281f68181cd4253bc77e5528d (diff) | |
| download | neko-afa87af01c79a9baa539f2992d32154d2a4739bd.tar.gz neko-afa87af01c79a9baa539f2992d32154d2a4739bd.tar.bz2 neko-afa87af01c79a9baa539f2992d32154d2a4739bd.zip | |
task: delete vanilla js prototype\n\n- Removed vanilla/ directory and web/dist/vanilla directory\n- Updated Makefile, Dockerfile, and CI workflow to remove vanilla references\n- Cleaned up web/web.go to remove vanilla embed and routes\n- Verified build and tests pass\n\nCloses NK-2tcnmq
Diffstat (limited to 'vanilla/node_modules/undici/lib/dispatcher/balanced-pool.js')
| -rw-r--r-- | vanilla/node_modules/undici/lib/dispatcher/balanced-pool.js | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/vanilla/node_modules/undici/lib/dispatcher/balanced-pool.js b/vanilla/node_modules/undici/lib/dispatcher/balanced-pool.js deleted file mode 100644 index d53a269..0000000 --- a/vanilla/node_modules/undici/lib/dispatcher/balanced-pool.js +++ /dev/null @@ -1,216 +0,0 @@ -'use strict' - -const { - BalancedPoolMissingUpstreamError, - InvalidArgumentError -} = require('../core/errors') -const { - PoolBase, - kClients, - kNeedDrain, - kAddClient, - kRemoveClient, - kGetDispatcher -} = require('./pool-base') -const Pool = require('./pool') -const { kUrl } = require('../core/symbols') -const { parseOrigin } = require('../core/util') -const kFactory = Symbol('factory') - -const kOptions = Symbol('options') -const kGreatestCommonDivisor = Symbol('kGreatestCommonDivisor') -const kCurrentWeight = Symbol('kCurrentWeight') -const kIndex = Symbol('kIndex') -const kWeight = Symbol('kWeight') -const kMaxWeightPerServer = Symbol('kMaxWeightPerServer') -const kErrorPenalty = Symbol('kErrorPenalty') - -/** - * Calculate the greatest common divisor of two numbers by - * using the Euclidean algorithm. - * - * @param {number} a - * @param {number} b - * @returns {number} - */ -function getGreatestCommonDivisor (a, b) { - if (a === 0) return b - - while (b !== 0) { - const t = b - b = a % b - a = t - } - return a -} - -function defaultFactory (origin, opts) { - return new Pool(origin, opts) -} - -class BalancedPool extends PoolBase { - constructor (upstreams = [], { factory = defaultFactory, ...opts } = {}) { - if (typeof factory !== 'function') { - throw new InvalidArgumentError('factory must be a function.') - } - - super() - - this[kOptions] = opts - this[kIndex] = -1 - this[kCurrentWeight] = 0 - - this[kMaxWeightPerServer] = this[kOptions].maxWeightPerServer || 100 - this[kErrorPenalty] = this[kOptions].errorPenalty || 15 - - if (!Array.isArray(upstreams)) { - upstreams = [upstreams] - } - - this[kFactory] = factory - - for (const upstream of upstreams) { - this.addUpstream(upstream) - } - this._updateBalancedPoolStats() - } - - addUpstream (upstream) { - const upstreamOrigin = parseOrigin(upstream).origin - - if (this[kClients].find((pool) => ( - pool[kUrl].origin === upstreamOrigin && - pool.closed !== true && - pool.destroyed !== true - ))) { - return this - } - const pool = this[kFactory](upstreamOrigin, Object.assign({}, this[kOptions])) - - this[kAddClient](pool) - pool.on('connect', () => { - pool[kWeight] = Math.min(this[kMaxWeightPerServer], pool[kWeight] + this[kErrorPenalty]) - }) - - pool.on('connectionError', () => { - pool[kWeight] = Math.max(1, pool[kWeight] - this[kErrorPenalty]) - this._updateBalancedPoolStats() - }) - - pool.on('disconnect', (...args) => { - const err = args[2] - if (err && err.code === 'UND_ERR_SOCKET') { - // decrease the weight of the pool. - pool[kWeight] = Math.max(1, pool[kWeight] - this[kErrorPenalty]) - this._updateBalancedPoolStats() - } - }) - - for (const client of this[kClients]) { - client[kWeight] = this[kMaxWeightPerServer] - } - - this._updateBalancedPoolStats() - - return this - } - - _updateBalancedPoolStats () { - let result = 0 - for (let i = 0; i < this[kClients].length; i++) { - result = getGreatestCommonDivisor(this[kClients][i][kWeight], result) - } - - this[kGreatestCommonDivisor] = result - } - - removeUpstream (upstream) { - const upstreamOrigin = parseOrigin(upstream).origin - - const pool = this[kClients].find((pool) => ( - pool[kUrl].origin === upstreamOrigin && - pool.closed !== true && - pool.destroyed !== true - )) - - if (pool) { - this[kRemoveClient](pool) - } - - return this - } - - getUpstream (upstream) { - const upstreamOrigin = parseOrigin(upstream).origin - - return this[kClients].find((pool) => ( - pool[kUrl].origin === upstreamOrigin && - pool.closed !== true && - pool.destroyed !== true - )) - } - - get upstreams () { - return this[kClients] - .filter(dispatcher => dispatcher.closed !== true && dispatcher.destroyed !== true) - .map((p) => p[kUrl].origin) - } - - [kGetDispatcher] () { - // We validate that pools is greater than 0, - // otherwise we would have to wait until an upstream - // is added, which might never happen. - if (this[kClients].length === 0) { - throw new BalancedPoolMissingUpstreamError() - } - - const dispatcher = this[kClients].find(dispatcher => ( - !dispatcher[kNeedDrain] && - dispatcher.closed !== true && - dispatcher.destroyed !== true - )) - - if (!dispatcher) { - return - } - - const allClientsBusy = this[kClients].map(pool => pool[kNeedDrain]).reduce((a, b) => a && b, true) - - if (allClientsBusy) { - return - } - - let counter = 0 - - let maxWeightIndex = this[kClients].findIndex(pool => !pool[kNeedDrain]) - - while (counter++ < this[kClients].length) { - this[kIndex] = (this[kIndex] + 1) % this[kClients].length - const pool = this[kClients][this[kIndex]] - - // find pool index with the largest weight - if (pool[kWeight] > this[kClients][maxWeightIndex][kWeight] && !pool[kNeedDrain]) { - maxWeightIndex = this[kIndex] - } - - // decrease the current weight every `this[kClients].length`. - if (this[kIndex] === 0) { - // Set the current weight to the next lower weight. - this[kCurrentWeight] = this[kCurrentWeight] - this[kGreatestCommonDivisor] - - if (this[kCurrentWeight] <= 0) { - this[kCurrentWeight] = this[kMaxWeightPerServer] - } - } - if (pool[kWeight] >= this[kCurrentWeight] && (!pool[kNeedDrain])) { - return pool - } - } - - this[kCurrentWeight] = this[kClients][maxWeightIndex][kWeight] - this[kIndex] = maxWeightIndex - return this[kClients][maxWeightIndex] - } -} - -module.exports = BalancedPool |
