lmdb/node-index.js

Simple, efficient, scalable, high-performance LMDB interface

import { createRequire } from 'module';
import { setRequire } from './open.js';
import { nativeAddon, setNativeFunctions } from './native.js';
export { nativeAddon } from './native.js';
let require = createRequire(import.meta.url);
setRequire(require);
export let v8AccelerationEnabled = false;

let versions = process.versions;
if (!versions.deno && !process.isBun) {
	let [majorVersion, minorVersion] = versions.node.split('.');
	if (versions.v8 && +majorVersion == nativeAddon.version.nodeCompiledVersion) {
		let v8Funcs = {};
		let fastApiCalls =
			(majorVersion == 17 ||
				majorVersion == 18 ||
				(majorVersion == 16 && minorVersion > 8)) &&
			!process.env.DISABLE_TURBO_CALLS;
		if (fastApiCalls) {
			require('v8').setFlagsFromString('--turbo-fast-api-calls');
		}
		nativeAddon.enableDirectV8(v8Funcs, fastApiCalls);
		Object.assign(nativeAddon, v8Funcs);
		v8AccelerationEnabled = true;
	} else if (majorVersion == 14) {
		// node v14 only has ABI compatibility with node v16 for zero-arg clearKeptObjects
		let v8Funcs = {};
		nativeAddon.enableDirectV8(v8Funcs, false);
		nativeAddon.clearKeptObjects = v8Funcs.clearKeptObjects;
	}
}
nativeAddon.enableThreadSafeCalls();
setNativeFunctions(nativeAddon);

export * from './index.js';
export { default } from './index.js';