initial code

test/JobManager.spec.js

@@ -0,0 +1,44 @@
+var JobManager = require('../src/JobManager.js').JobManager;
+var utils = require('../src/utils.js');
+var range = utils.range;
+
+var wrks = range(400000);
+wrks.forEach( function(v,k){
+    wrks[k] = function(data,cb){
+        var self = this;
+        process.nextTick(function(){
+            // console.log( 'I am done: ', v );
+            cb( null, data);
+        } );
+    };
+    wrks[k].id = v;
+});
+
+var tStart = 0;
+var getTasks = function(){
+    var i, out=[];
+    for( i = 0; i< 1000; i++, tStart++ ){
+        out[i] = tStart;
+    }
+    return out;
+};
+
+var tasks = getTasks();
+
+var jm = new JobManager({concurrency:3});
+jm.tasks = tasks;
+jm.workers = wrks;
+jm.onError = function(err, task, worker ){
+    console.log( 'Error...', arguments );
+};
+
+jm.work = function(task, worker, cb){
+    // console.log( 'Worker ', worker.id, ' with ', task );
+    return worker( task, cb );
+};
+jm.onLoadMore = function( cb ){
+    console.log( 'Loading......');
+    this.tasks = this.tasks.concat( getTasks() );
+    return cb();
+};
+jm.start();