107 lines
2.7 KiB
JavaScript
107 lines
2.7 KiB
JavaScript
const util = require('util');
|
|
const Web3 = require('web3');
|
|
const utils = require('j7/utils');
|
|
const event = require('j7/event');
|
|
const sync = require("j7/sync");
|
|
const log = require("j7/log");
|
|
const metaFactory = require('./metadata/factory');
|
|
const C = require("./C");
|
|
|
|
class BlockChain {
|
|
|
|
constructor() {
|
|
this.actived = false;
|
|
this.currBlockNumber = 0;
|
|
this.refreshCond = new sync.Cond();
|
|
this.lastRefreshTime = utils.getUtcTime();
|
|
this.firstBlockNumber = -1;
|
|
this.netId = 0;
|
|
setTimeout(this.refreshBlockNumber.bind(this), 1000 * 0.01);
|
|
}
|
|
|
|
async initInstance(user, address, jsonUrl) {
|
|
const json = utils.readJsonFromFile(jsonUrl);
|
|
return new this.web3.eth.Contract(
|
|
json.abi,
|
|
address,
|
|
{ from: user }
|
|
);
|
|
}
|
|
|
|
async init() {
|
|
this.web3 = new Web3(metaFactory.getWeb3Conf()['block_server']);
|
|
this.web3.eth.handleRevert = true;
|
|
for (const data of metaFactory.getContracts()) {
|
|
this[`${data.name}Instance`] = await this.initInstance
|
|
(metaFactory.getUserAddress(), data.address, data.json);
|
|
}
|
|
event.emitEvent(C.BC_INITIALIZED_EVENT);
|
|
}
|
|
|
|
async mustBeActive() {
|
|
while (!this.actived) {
|
|
await utils.sleep(1000);
|
|
}
|
|
}
|
|
|
|
async getNetId() {
|
|
return await this.web3.eth.getChainId();
|
|
}
|
|
|
|
async refreshBlockNumber() {
|
|
const logClass = 'refreshBlockNumber';
|
|
while (true) {
|
|
try {
|
|
this.currBlockNumber = await this.web3.eth.getBlockNumber();
|
|
this.actived = true;
|
|
this.lastRefreshTime = utils.getUtcTime();
|
|
if (!this.initedBlockNumber) {
|
|
this.initedBlockNumber = true;
|
|
this.initBlockNumber = this.currBlockNumber;
|
|
}
|
|
} catch (e) {
|
|
this.actived = false;
|
|
log.warning(util.format('%s err:%s',
|
|
logClass,
|
|
e
|
|
));
|
|
}
|
|
await this.refreshCond.wait(1000 * 3);
|
|
}
|
|
}
|
|
|
|
getCurrBlockNumber() {
|
|
return this.currBlockNumber;
|
|
}
|
|
|
|
async getFirstBlockNumber() {
|
|
while (this.firstBlockNumber < 0) {
|
|
const {err, conn} = await app.getDbConn('MarketDb0');
|
|
if (err) {
|
|
await utils.sleep(1000 + utils.randRange(500, 1500));
|
|
continue;
|
|
}
|
|
try {
|
|
const {err, row} = await conn.ormSelectOne(
|
|
't_parameter',
|
|
[
|
|
['name', 'first_block_number']
|
|
]
|
|
);
|
|
if (!err && row) {
|
|
this.firstBlockNumber = Number(row['value']);
|
|
}
|
|
} catch (e) {
|
|
|
|
} finally {
|
|
conn.release();
|
|
}
|
|
await utils.sleep(5000 + utils.randRange(500, 1500));
|
|
}
|
|
return this.firstBlockNumber;
|
|
}
|
|
|
|
}
|
|
|
|
module.exports = new BlockChain();
|