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Diffstat (limited to 'cmd/mist/assets/ext/ethereum.js/lib/providermanager.js')
-rw-r--r-- | cmd/mist/assets/ext/ethereum.js/lib/providermanager.js | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/cmd/mist/assets/ext/ethereum.js/lib/providermanager.js b/cmd/mist/assets/ext/ethereum.js/lib/providermanager.js deleted file mode 100644 index 55b072634..000000000 --- a/cmd/mist/assets/ext/ethereum.js/lib/providermanager.js +++ /dev/null @@ -1,102 +0,0 @@ -/* - This file is part of ethereum.js. - - ethereum.js is free software: you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - ethereum.js is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with ethereum.js. If not, see <http://www.gnu.org/licenses/>. -*/ -/** @file providermanager.js - * @authors: - * Jeffrey Wilcke <jeff@ethdev.com> - * Marek Kotewicz <marek@ethdev.com> - * Marian Oancea <marian@ethdev.com> - * Gav Wood <g@ethdev.com> - * @date 2014 - */ - -var web3 = require('./web3'); -var jsonrpc = require('./jsonrpc'); - - -/** - * Provider manager object prototype - * It's responsible for passing messages to providers - * If no provider is set it's responsible for queuing requests - * It's also responsible for polling the ethereum node for incoming messages - * Default poll timeout is 12 seconds - * If we are running ethereum.js inside ethereum browser, there are backend based tools responsible for polling, - * and provider manager polling mechanism is not used - */ -var ProviderManager = function() { - this.polls = []; - this.provider = undefined; - - var self = this; - var poll = function () { - self.polls.forEach(function (data) { - var result = self.send(data.data); - - if (!(result instanceof Array) || result.length === 0) { - return; - } - - data.callback(result); - }); - - setTimeout(poll, 1000); - }; - poll(); -}; - -/// sends outgoing requests -/// @params data - an object with at least 'method' property -ProviderManager.prototype.send = function(data) { - var payload = jsonrpc.toPayload(data.method, data.params); - - if (this.provider === undefined) { - console.error('provider is not set'); - return null; - } - - var result = this.provider.send(payload); - - if (!jsonrpc.isValidResponse(result)) { - console.log(result); - return null; - } - - return result.result; -}; - -/// setups provider, which will be used for sending messages -ProviderManager.prototype.set = function(provider) { - this.provider = provider; -}; - -/// this method is only used, when we do not have native qt bindings and have to do polling on our own -/// should be callled, on start watching for eth/shh changes -ProviderManager.prototype.startPolling = function (data, pollId, callback) { - this.polls.push({data: data, id: pollId, callback: callback}); -}; - -/// should be called to stop polling for certain watch changes -ProviderManager.prototype.stopPolling = function (pollId) { - for (var i = this.polls.length; i--;) { - var poll = this.polls[i]; - if (poll.id === pollId) { - this.polls.splice(i, 1); - } - } -}; - -module.exports = ProviderManager; - |