60 lines
1.2 KiB
JavaScript
60 lines
1.2 KiB
JavaScript
const constant = require('./constant');
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const dbHash = {};
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[
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constant.GAMEDB_NAME,
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constant.BCEVENTDB_NAME,
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constant.BCNFTDB_NAME
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].forEach(
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(item) => {
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dbHash[item] = {
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'lockTimes': 0,
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'conn': null
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};
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}
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);
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async function internalCreateConn(app, name) {
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if (!dbHash.hasOwnProperty(name)) {
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throw new Error('dbpool error dbname:' + name);
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}
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const dbObj = dbHash[name];
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while (dbObj.lockTimes > 0) {
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await new Promise(function (resolve, reject) {
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setTimeout(function () {
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resolve();
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}, 1000);
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});
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}
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if (!dbObj.conn) {
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++dbObj.lockTimes;
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try {
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const {err, conn} = await app.getDbConn(name);
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if (err) {
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throw new Error('getGBcEventConn error:' + err);
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}
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dbObj.conn = conn;
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} finally {
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--dbObj.lockTimes;
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}
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}
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return dbObj.conn;
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}
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async function getBcEventConn(app) {
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return await internalCreateConn(app, constant.BCEVENTDB_NAME);
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}
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async function getBcNftConn(app) {
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return await internalCreateConn(app, constant.BCNFTDB_NAME);
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}
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async function getGameConn(app) {
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return await internalCreateConn(app, constant.GAMEDB_NAME);
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}
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exports.getBcEventConn = getBcEventConn;
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exports.getBcNftConn = getBcNftConn;
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exports.getGameConn = getGameConn;
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