/* -*-  Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Mozilla Public License Version
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 * the License. You may obtain a copy of the License at
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 *
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 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
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 *
 * The Original Code is mozilla.org code.
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 * The Initial Developer of the Original Code is
 * The Mozilla Foundation <http://www.mozilla.org/>.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *  Taras Glek <tglek@mozilla.com>
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#ifndef Telemetry_h__
#define Telemetry_h__

#include "mozilla/TimeStamp.h"

namespace mozilla {
namespace Telemetry {

enum ID {
#define HISTOGRAM(name, a, b, c, d, e) name,

#include "TelemetryHistograms.h"

#undef HISTOGRAM
HistogramCount
};

/**
 * Adds sample to a histogram defined in TelemetryHistograms.h
 *
 * @param id - histogram id
 * @param sample - value to record.
 */
void Accumulate(ID id, PRUint32 sample);

template<ID id>
class AutoTimer {
public:
  AutoTimer():
    start(TimeStamp::Now())
  {
  }

  ~AutoTimer() {
    Accumulate(id, (TimeStamp::Now() - start).ToMilliseconds());
  }

private:
  const TimeStamp start;
};
} // namespace Telemetry
} // namespace mozilla
#endif // Telemetry_h__