Merge pull request #67 from alephium/send-one-job-to-miners

Send one job to miners

lib/jobManager.js

@@ -3,6 +3,7 @@ const bignum = require('bignum');
 const blockTemplate = require('./blockTemplate.js');
 const constants = require('./constants.js');
 const util = require('./util');
+const crypto = require('crypto');
 
 //Unique job per new block template
 var JobCounter = function(){
@@ -74,11 +75,10 @@ function JobManager(jobExpiryPeriod){
 
     this.processJobs = function(jobs){
         var now = Date.now();
-        var miningJobs = jobs.map(job => {
-            var jobId = jobCounter.next();
-            job.jobId = jobId;
-            return new blockTemplate(job, now);
-        })
+        var jobIndex = crypto.randomInt(0, jobs.length)
+        var job = jobs[jobIndex]
+        job.jobId = jobCounter.next()
+        var miningJobs = [new blockTemplate(job, now)]
         _this.validJobs.addJobs(miningJobs, now);
         _this.emit('newJobs', miningJobs);
     };