ms/packages/ployfill/src/node-shim.ts
2020-06-30 15:58:51 +08:00

38 lines
1.4 KiB
TypeScript

import { EventEmitter } from 'events'
const Thread = Java.type('java.lang.Thread')
const ThreadGroup = Java.type("java.lang.ThreadGroup")
const AtomicInteger = Java.type("java.util.concurrent.atomic.AtomicInteger")
const ThreadPoolExecutor = Java.type('java.util.concurrent.ThreadPoolExecutor')
const LinkedBlockingQueue = Java.type("java.util.concurrent.LinkedBlockingQueue")
const threadCount = new AtomicInteger(0)
const threadGroup = new ThreadGroup("@ccms/ployfill-micro-task")
const microTaskPool = new ThreadPoolExecutor(
10, 100, 60, Packages.java.util.concurrent.TimeUnit.SECONDS,
new LinkedBlockingQueue(500),
(run: any) => new Thread(threadGroup, run, "@ccms/micro-task-" + threadCount.incrementAndGet()),
new ThreadPoolExecutor.CallerRunsPolicy()
)
class Process extends EventEmitter {
env = {
__noSuchProperty__: (prop) => {
return Packages.java.lang.System.getenv(prop)
}
}
platform = Packages.java.lang.System.getProperty("os.name")
nextTick(func: Function) {
microTaskPool.execute(func)
}
queueMicrotask(func: Function) {
microTaskPool.execute(func)
}
exit(code: number) {
process.emit('exit', code)
microTaskPool.shutdown()
}
}
global.setGlobal('process', new Process(), {})
global.setGlobal('queueMicrotask', (func: any) => microTaskPool.execute(func), {})