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Current File : /home/opti/workflow/node_modules/sequelize/lib/dialects/mssql/resource-lock.js

'use strict';

const Promise = require('../../promise');

function ResourceLock(resource) {
  this.resource = resource;
  this.previous = Promise.resolve(resource);
}

ResourceLock.prototype.unwrap = function() {
  return this.resource;
};

ResourceLock.prototype.lock = function() {
  const lock = this.previous;
  let resolve;

  this.previous = new Promise(r => {
    resolve = r;
  });

  return lock.disposer(resolve);
};

module.exports = ResourceLock;

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