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Centralize polling algorithm

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This commit is contained in:
Cameron Gutman
2016-08-27 16:34:39 -07:00
parent c308e4034c
commit 47868d7c57
2 changed files with 89 additions and 52 deletions
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65
static/js/utils.js
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@@ -38,9 +38,10 @@ function NvHTTP(address, clientUid, userEnteredAddress = '') {
this.currentGame = 0;
this.serverMajorVersion = 0;
this.clientUid = clientUid;
this._baseUrlHttps = 'https://' + address + ':47984';
this._baseUrlHttp = 'http://' + address + ':47989';
this._memCachedBoxArtArray = {};
this._pollCount = 0;
this._consecutivePollFailures = 0;
this.online = false;
this.userEnteredAddress = userEnteredAddress; // if the user entered an address, we keep it on hand to try when polling
this.serverUid = '';
@@ -100,22 +101,52 @@ NvHTTP.prototype = {
}.bind(this));
},
// called every few seconds to poll the server for updated info
pollServer: function(onComplete) {
this.selectServerAddress(function(successfulAddress) {
// Successfully determined server address. Update base URL.
this.address = successfulAddress;
this._baseUrlHttps = 'https://' + successfulAddress + ':47984';
this._baseUrlHttp = 'http://' + successfulAddress + ':47989';
// Poll for the app list every 10 successful serverinfo polls.
// Not including the first one to avoid PCs taking a while to show
// as online initially
if (++this._pollCount % 10 == 0) {
this.getAppListWithCacheFlush();
}
this._consecutivePollFailures = 0;
this.online = true;
onComplete();
}.bind(this), function() {
if (++this._consecutivePollFailures >= 3) {
this.online = false;
}
onComplete();
}.bind(this));
},
// initially pings the server to try and figure out if it's routable by any means.
initialPing: function(onSuccess, onFailure) {
this.refreshServerInfoAtAddress(this.hostname + '.local').then(function(successLocal) {
this.address = this.hostname + '.local';
onSuccess();
}.bind(this), function(failureLocal) {
this.refreshServerInfoAtAddress(this.externalIP).then(function(successExternal) {
this.address = this.externalIP;
onSuccess();
}.bind(this), function(failureExternal) {
this.refreshServerInfoAtAddress(this.userEnteredAddress).then(function(successUserEntered) {
this.address = this.userEnteredAddress;
onSuccess();
}.bind(this), function(failureUserEntered) {
console.log('WARN! Failed to contact host: ' + this.hostname + '\r\n' + this.toString());
onFailure();
selectServerAddress: function(onSuccess, onFailure) {
// TODO: Deduplicate the addresses
this.refreshServerInfoAtAddress(this.address).then(function(successPrevAddr) {
onSuccess(this.address);
}.bind(this), function(successPrevAddr) {
this.refreshServerInfoAtAddress(this.hostname + '.local').then(function(successLocal) {
onSuccess(this.hostname + '.local');
}.bind(this), function(failureLocal) {
this.refreshServerInfoAtAddress(this.externalIP).then(function(successExternal) {
onSuccess(this.externalIP);
}.bind(this), function(failureExternal) {
this.refreshServerInfoAtAddress(this.userEnteredAddress).then(function(successUserEntered) {
onSuccess(this.userEnteredAddress);
}.bind(this), function(failureUserEntered) {
console.log('WARN! Failed to contact host: ' + this.hostname + '\r\n' + this.toString());
onFailure();
}.bind(this));
}.bind(this));
}.bind(this));
}.bind(this));