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refactor: use iterables instead of Promises where possible
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| 'use strict' | ||
|
|
||
| const PeerSet = require('./peer-set') | ||
|
|
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| /** | ||
| * Like PeerSet but with a size restriction. | ||
| */ | ||
| class LimitedPeerSet extends PeerSet { | ||
| /** | ||
| * Create a new limited peer set. | ||
| * | ||
| * @param {number} limit | ||
| */ | ||
| constructor (limit) { | ||
| super() | ||
| this.limit = limit | ||
| } | ||
|
|
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| /** | ||
| * Add a PeerInfo if it fits in the set | ||
| * | ||
| * @param {PeerInfo} info | ||
| * @returns {bool} | ||
| */ | ||
| add (info) { | ||
| if (this.size < this.limit) { | ||
| return super.add(info) | ||
| } | ||
| return false | ||
| } | ||
| } | ||
|
|
||
| module.exports = LimitedPeerSet |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| 'use strict' | ||
|
|
||
| /** | ||
| * A set of unique peer ids. | ||
| */ | ||
| class PeerIdSet { | ||
| constructor () { | ||
| this.peers = new Map() | ||
| } | ||
|
|
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| /** | ||
| * Add a new id. Returns `true` if it was a new one | ||
| * | ||
| * @param {PeerId} id | ||
| * @returns {bool} | ||
| */ | ||
| add (id) { | ||
| if (!id) { | ||
| return false | ||
| } | ||
| if (!this.has(id)) { | ||
| this.peers.set(id.toB58String(), id) | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
|
|
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| /** | ||
| * Check if this PeerId is already in here. | ||
| * | ||
| * @param {PeerId} id | ||
| * @returns {bool} | ||
| */ | ||
| has (id) { | ||
| return this.peers.has(id && id.toB58String()) | ||
| } | ||
|
|
||
| /** | ||
| * Get the set as an array. | ||
| * | ||
| * @returns {Array<PeerId>} | ||
| */ | ||
| toArray () { | ||
| return [...this.peers.values()] | ||
| } | ||
|
|
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| /** | ||
| * The size of the set | ||
| * | ||
| * @type {number} | ||
| */ | ||
| get size () { | ||
| return this.peers.size | ||
| } | ||
| } | ||
|
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| module.exports = PeerIdSet |
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