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/*
* Show `evt.child()` usage for more practical usage. `.child(fields)`
* allows you to bind common fields to emited events.
*/
var fs = require("fs");
var EVT = new (require("../dist/trace-event")).Tracer();
EVT.pipe(process.stdout);
function doSubTaskA(opts, cb) {
var evt = EVT.child({ id: opts.id, name: "doSubTaskA" });
evt.begin();
setTimeout(function() {
// ...
evt.end();
cb();
}, Math.floor(Math.random() * 2000));
}
function doSomething(opts, cb) {
var evt = EVT.child({ id: opts.id, name: "doSomething" });
evt.begin();
setTimeout(function() {
// ...
doSubTaskA(opts, function() {
evt.end();
cb();
});
}, Math.floor(Math.random() * 2000));
}
for (var i = 0; i < 5; i++) {
doSomething({ id: i }, function() {});
}