From a93f80d44752b4d7c35290517286b542da0ee967 Mon Sep 17 00:00:00 2001
From: simon3000 <simon30002021@icloud.com>
Date: Sun, 10 Nov 2019 18:17:44 +0100
Subject: [PATCH] DDDhttp

https://github.com/dd-center/Cluster-center/issues/1
---
 src/ws.js | 64 +++++++++++++++++++++++++++++++++----------------------
 1 file changed, 38 insertions(+), 26 deletions(-)

diff --git a/src/ws.js b/src/ws.js
index a88333a..d14729d 100644
--- a/src/ws.js
+++ b/src/ws.js
@@ -16,6 +16,9 @@ const base = process.env.development ? 'ws://0.0.0.0:9013' : 'wss://cluster.vtbs
 const wait = ms => new Promise(resolve => setTimeout(resolve, ms))
 
 const parse = string => {
+  if (string === 'wait') {
+    return { empty: true }
+  }
   try {
     return JSON.parse(string)
   } catch (_) {
@@ -69,20 +72,27 @@ module.exports = async ({ state, db }) => {
     const pending = []
 
     ws.on('message', async message => {
-      const { key, data } = parse(message)
-      const { type } = data
-      if (type === 'http') {
-        const { url } = data
+      const { key, data, empty } = parse(message)
+      if (data) {
+        const { type } = data
+        if (type === 'http') {
+          const { url } = data
+          const resolve = pending.shift()
+          if (resolve) {
+            console.log('job received', url)
+            resolve({ key, url })
+          }
+        } else if (type === 'query') {
+          if (queryTable.has(key)) {
+            const { result } = data
+            queryTable.get(key)(result)
+            queryTable.delete(key)
+          }
+        }
+      } else if (empty) {
         const resolve = pending.shift()
         if (resolve) {
-          console.log('job received', url)
-          resolve({ key, url })
-        }
-      } else if (type === 'query') {
-        if (queryTable.has(key)) {
-          const { result } = data
-          queryTable.get(key)(result)
-          queryTable.delete(key)
+          resolve({ empty })
         }
       }
     })
@@ -91,22 +101,24 @@ module.exports = async ({ state, db }) => {
       await wait(INTERVAL * PARALLEL * Math.random())
       while (true) {
         const now = Date.now()
-        const { key, url } = await new Promise(resolve => {
+        const { key, url, empty } = await new Promise(resolve => {
           pending.push(resolve)
-          secureSend('DDhttp')
+          secureSend('DDDhttp')
         })
-        const time = Date.now()
-        const { body } = await got(url).catch(e => ({ body: JSON.stringify({ code: e.statusCode }) }))
-        const result = secureSend(JSON.stringify({
-          key,
-          data: body
-        }))
-        if (result) {
-          state.delay = Math.round(process.uptime() * 1000 / state.completeNumNow)
-          console.log(`job complete ${((Date.now() - time) / 1000).toFixed(2)}s`, state.delay, INTERVAL * PARALLEL - Date.now() + now)
-          state.log = url
-          state.completeNum++
-          state.completeNumNow++
+        if (!empty) {
+          const time = Date.now()
+          const { body } = await got(url).catch(e => ({ body: JSON.stringify({ code: e.statusCode }) }))
+          const result = secureSend(JSON.stringify({
+            key,
+            data: body
+          }))
+          if (result) {
+            state.delay = Math.round(process.uptime() * 1000 / state.completeNumNow)
+            console.log(`job complete ${((Date.now() - time) / 1000).toFixed(2)}s`, state.delay, INTERVAL * PARALLEL - Date.now() + now)
+            state.log = url
+            state.completeNum++
+            state.completeNumNow++
+          }
         }
         await wait(INTERVAL * PARALLEL - Date.now() + now)
       }