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Merge branch 'develop' of github.com:MetaMask/metamask-extension into network-remove-provider-engine

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This commit is contained in:
kumavis 2018-05-22 16:22:10 -07:00
commit 145016be4c
1 changed files with 7 additions and 15 deletions
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22
app/scripts/controllers/recent-blocks.js
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@ -3,7 +3,6 @@ const extend = require('xtend')
const EthQuery = require('eth-query')
const log = require('loglevel')
const pify = require('pify')
const timeout = (duration) => new Promise(resolve => setTimeout(resolve, duration))
class RecentBlocksController {
@ -123,28 +122,21 @@ class RecentBlocksController {
*/
async backfill() {
this.blockTracker.once('latest', async (blockNumberHex) => {
let recentBlocks
let blockNumber = Number.parseInt(blockNumberHex, 16)
let state = this.store.getState()
recentBlocks = state.recentBlocks
while (recentBlocks.length < this.historyLength) {
const currentBlockNumber = Number.parseInt(blockNumberHex, 16)
const blocksToFetch = Math.min(currentBlockNumber, this.historyLength)
const prevBlockNumber = currentBlockNumber - 1
const targetBlockNumbers = Array(blocksToFetch).fill().map((_, index) => prevBlockNumber - index)
await Promise.all(targetBlockNumbers.map(async (targetBlockNumber) => {
try {
const prevBlockNumber = blockNumber - 1
const newBlock = await this.getBlockByNumber(prevBlockNumber)
const newBlock = await this.getBlockByNumber(targetBlockNumber)
if (newBlock) {
this.backfillBlock(newBlock)
blockNumber = Number.parseInt(newBlock.number, 16)
}
state = this.store.getState()
recentBlocks = state.recentBlocks
} catch (e) {
log.error(e)
}
await timeout(100)
}
}))
})
}