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feat: state events and query changes (#100)

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Pedro Teixeira 2017-07-07 12:56:46 +01:00 committed by David Dias
parent 2d40f3ad6a
commit 73f2f6d050
1 changed files with 20 additions and 13 deletions
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33
src/index.js
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@ -17,7 +17,7 @@ const multiaddr = require('multiaddr')
exports = module.exports exports = module.exports
const OFFLINE_ERROR_MESSAGE = 'The libp2p node is not started yet' const NOT_STARTED_ERROR_MESSAGE = 'The libp2p node is not started yet'
class Node extends EventEmitter { class Node extends EventEmitter {
constructor (_modules, _peerInfo, _peerBook, _options) { constructor (_modules, _peerInfo, _peerBook, _options) {
@ -28,7 +28,7 @@ class Node extends EventEmitter {
this.modules = _modules this.modules = _modules
this.peerInfo = _peerInfo this.peerInfo = _peerInfo
this.peerBook = _peerBook || new PeerBook() this.peerBook = _peerBook || new PeerBook()
this.isOnline = false this._isStarted = false
this.swarm = new Swarm(this.peerInfo, this.peerBook) this.swarm = new Swarm(this.peerInfo, this.peerBook)
@ -156,7 +156,6 @@ class Node extends EventEmitter {
} }
}) })
this.peerInfo.multiaddrs.replace(maOld, maNew) this.peerInfo.multiaddrs.replace(maOld, maNew)
const multiaddrs = this.peerInfo.multiaddrs.toArray() const multiaddrs = this.peerInfo.multiaddrs.toArray()
transports.forEach((transport) => { transports.forEach((transport) => {
@ -174,9 +173,6 @@ class Node extends EventEmitter {
series([ series([
(cb) => this.swarm.listen(cb), (cb) => this.swarm.listen(cb),
(cb) => { (cb) => {
// listeners on, libp2p is on
this.isOnline = true
if (ws) { if (ws) {
// always add dialing on websockets // always add dialing on websockets
this.swarm.transport.add(ws.tag || ws.constructor.name, ws) this.swarm.transport.add(ws.tag || ws.constructor.name, ws)
@ -189,10 +185,17 @@ class Node extends EventEmitter {
cb() cb()
}, },
(cb) => { (cb) => {
// TODO: chicken-and-egg problem:
// have to set started here because DHT requires libp2p is already started
this._isStarted = true
if (this._dht) { if (this._dht) {
return this._dht.start(cb) return this._dht.start(cb)
} }
cb() cb()
},
(cb) => {
this.emit('start')
cb()
} }
], callback) ], callback)
} }
@ -201,7 +204,7 @@ class Node extends EventEmitter {
* Stop the libp2p node by closing its listeners and open connections * Stop the libp2p node by closing its listeners and open connections
*/ */
stop (callback) { stop (callback) {
this.isOnline = false this._isStarted = false
if (this.modules.discovery) { if (this.modules.discovery) {
this.modules.discovery.forEach((discovery) => { this.modules.discovery.forEach((discovery) => {
@ -216,16 +219,20 @@ class Node extends EventEmitter {
} }
cb() cb()
}, },
(cb) => this.swarm.close(cb) (cb) => this.swarm.close(cb),
(cb) => {
this.emit('stop')
cb()
}
], callback) ], callback)
} }
isOn () { isStarted () {
return this.isOnline return this._isStarted
} }
ping (peer, callback) { ping (peer, callback) {
assert(this.isOn(), OFFLINE_ERROR_MESSAGE) assert(this.isStarted(), NOT_STARTED_ERROR_MESSAGE)
this._getPeerInfo(peer, (err, peerInfo) => { this._getPeerInfo(peer, (err, peerInfo) => {
if (err) { if (err) {
return callback(err) return callback(err)
@ -236,7 +243,7 @@ class Node extends EventEmitter {
} }
dial (peer, protocol, callback) { dial (peer, protocol, callback) {
assert(this.isOn(), OFFLINE_ERROR_MESSAGE) assert(this.isStarted(), NOT_STARTED_ERROR_MESSAGE)
if (typeof protocol === 'function') { if (typeof protocol === 'function') {
callback = protocol callback = protocol
@ -259,7 +266,7 @@ class Node extends EventEmitter {
} }
hangUp (peer, callback) { hangUp (peer, callback) {
assert(this.isOn(), OFFLINE_ERROR_MESSAGE) assert(this.isStarted(), NOT_STARTED_ERROR_MESSAGE)
this._getPeerInfo(peer, (err, peerInfo) => { this._getPeerInfo(peer, (err, peerInfo) => {
if (err) { if (err) {