From 4bb2337f3997d8b4b2f8c868e6662a1fe86f8957 Mon Sep 17 00:00:00 2001
From: MiaoWoo <admin@yumc.pw>
Date: Wed, 18 Nov 2020 16:32:09 +0800
Subject: [PATCH] refactor(core): core task function

move event loop task to @ccms/micro-task thread

BREAKING CHANGE: setTimeout & setInterval no longer run on main thread

Signed-off-by: MiaoWoo <admin@yumc.pw>
---
 packages/core/src/index.ts         | 23 +++++------------
 packages/ployfill/src/node-shim.ts | 41 +++++++++++++++++++++++++++++-
 2 files changed, 46 insertions(+), 18 deletions(-)

diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 7f7cc27f..feddb291 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -1,25 +1,23 @@
 let containerStartTime = Date.now()
 console.i18n("ms.core.ioc.initialize", { scope: global.scope })
 import { plugin, server, task, constants } from '@ccms/api'
-import { DefaultContainer as container, inject, provideSingleton, ContainerInstance, buildProviderModule } from '@ccms/container'
+import { DefaultContainer as container, inject, provideSingleton, ContainerInstance, buildProviderModule, Autowired } from '@ccms/container'
 console.i18n("ms.core.ioc.completed", { scope: global.scope, time: (Date.now() - containerStartTime) / 1000 })
 import http from '@ccms/common/dist/http'
 
 @provideSingleton(MiaoScriptCore)
 class MiaoScriptCore {
-    @inject(server.Console)
+    @Autowired(server.Console)
     private Console: Console
-    @inject(task.TaskManager)
-    private taskManager: task.TaskManager
-    @inject(plugin.PluginFolder)
+    @Autowired(plugin.PluginFolder)
     private pluginFolder: string
-    @inject(plugin.PluginManager)
+    @Autowired()
+    private taskManager: task.TaskManager
+    @Autowired()
     private pluginManager: plugin.PluginManager
 
     enable() {
         this.loadServerConsole()
-        this.loadTaskFunction()
-        global.level = "TRACE"
         this.loadPlugins()
         return () => this.disable()
     }
@@ -29,15 +27,6 @@ class MiaoScriptCore {
         global.setGlobal('console', new this.Console(), { writable: false, configurable: false })
     }
 
-    loadTaskFunction() {
-        global.setGlobal('setTimeout', (func: Function, tick: number, ...args: any[]) => {
-            return this.taskManager.create(func).later(tick).submit(...args)
-        }, { writable: false, configurable: false })
-        global.setGlobal('setInterval', (func: Function, tick: number, ...args: any[]) => {
-            return this.taskManager.create(func).timer(tick).submit(...args)
-        }, { writable: false, configurable: false })
-    }
-
     loadPlugins() {
         let loadPluginStartTime = new Date().getTime()
         console.i18n("ms.core.plugin.initialize")
diff --git a/packages/ployfill/src/node-shim.ts b/packages/ployfill/src/node-shim.ts
index 3c4018ec..2d81d1fe 100644
--- a/packages/ployfill/src/node-shim.ts
+++ b/packages/ployfill/src/node-shim.ts
@@ -5,6 +5,7 @@ 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 TimeUnit = Java.type("java.util.concurrent.TimeUnit")
 
 const threadCount = new AtomicInteger(0)
 const threadGroup = new ThreadGroup("@ccms/ployfill-micro-task")
@@ -14,7 +15,6 @@ const microTaskPool = new ThreadPoolExecutor(
     (run: any) => new Thread(threadGroup, run, "@ccms/micro-task-" + threadCount.incrementAndGet()),
     new ThreadPoolExecutor.CallerRunsPolicy()
 )
-
 class Process extends EventEmitter {
     env = {
         __noSuchProperty__: (prop) => {
@@ -44,7 +44,46 @@ class Process extends EventEmitter {
     exit(code: number) {
         process.emit('exit', code)
         microTaskPool.shutdown()
+        console.log('await microTaskPool termination...')
+        microTaskPool.awaitTermination(5000, TimeUnit.MILLISECONDS)
     }
 }
+const timeoutCount = new AtomicInteger(0)
+const timeoutTasks = []
+function setTimeout(func: Function, time: number, ...args: any[]) {
+    let taskId = timeoutCount.incrementAndGet()
+    timeoutTasks[taskId] = func
+    process.nextTick(() => {
+        Thread.sleep(time)
+        if (timeoutTasks[taskId]) { func(...args) }
+    })
+    return taskId
+}
+function clearTimeout(taskId: number) {
+    delete timeoutTasks[taskId]
+}
+const intervalCount = new AtomicInteger(0)
+const intervalTasks = []
+function setInterval(func: Function, time: number, ...args: any[]) {
+    let taskId = intervalCount.incrementAndGet()
+    intervalTasks[taskId] = func
+    process.nextTick(() => {
+        Thread.sleep(time)
+        while (intervalTasks[taskId]) {
+            func(...args)
+            Thread.sleep(time)
+        }
+    })
+    return taskId
+}
+function clearInterval(taskId: number) {
+    delete intervalTasks[taskId]
+}
 global.setGlobal('process', new Process(), {})
 global.setGlobal('queueMicrotask', (func: any) => microTaskPool.execute(func), {})
+global.setGlobal('setTimeout', setTimeout, {})
+global.setGlobal('clearTimeout', clearTimeout, {})
+global.setGlobal('setImmediate', (func: Function, ...args: any[]) => setTimeout(func, 0, ...args), {})
+global.setGlobal('clearImmediate ', clearTimeout, {})
+global.setGlobal('setInterval', setInterval, {})
+global.setGlobal('clearInterval', clearInterval, {})