Files
sdk/runtime/lib/profiler.dart
T
johnmccutchan@google.com 2e59674838 Initial backend for metrics in Observatory.
Two types of metrics:

* Counter - a measured value
* Gauge - A measured value with a min and max

Follow up CLs for the backend:

* Support for internal VM metrics (implemented in C++ but visible over the service).

Follow up CLs for the frontend:

* Query list of metrics
* Get latest value of a metric
* Collect values over time and graph them.

I'd like some feedback on the API and the data reported.

R=koda@google.com

Review URL: https://codereview.chromium.org//409213004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@38793 260f80e4-7a28-3924-810f-c04153c831b5
2014-07-31 18:27:38 +00:00

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Dart

// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import 'dart:_internal';
patch class UserTag {
/* patch */ factory UserTag(String label) {
return new _UserTag(label);
}
/* patch */ static UserTag get defaultTag => _getDefaultTag();
}
class _UserTag implements UserTag {
factory _UserTag(String label) native "UserTag_new";
String get label native "UserTag_label";
UserTag makeCurrent() native "UserTag_makeCurrent";
}
patch UserTag getCurrentTag() => _getCurrentTag();
UserTag _getCurrentTag() native "Profiler_getCurrentTag";
UserTag _getDefaultTag() native "UserTag_defaultTag";