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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// Win32 aggregator, which aggregates counters to registry under a named
// Mutex lock.
#ifndef O3D_STATSREPORT_AGGREGATOR_WIN32_H__
#define O3D_STATSREPORT_AGGREGATOR_WIN32_H__
#include "aggregator.h"
#include <atlbase.h>
#include <atlstr.h>
namespace stats_report {
class MetricsAggregatorWin32: public MetricsAggregator {
public:
// @param coll the metrics collection to aggregate, most usually this
// is g_global_metrics.
// @param app_name name of the subkey under HKCU\Software\Google we
// aggregate to. Should be or encode the application name for
// transparency, e.g. "Scour", or "Gears".
MetricsAggregatorWin32(const MetricCollection &coll,
const wchar_t *app_name);
// @param is_machine specifies the registry hive where the stats are
// aggregated to.
MetricsAggregatorWin32(const MetricCollection &coll,
const wchar_t *app_name,
bool is_machine);
virtual ~MetricsAggregatorWin32();
protected:
virtual bool StartAggregation();
virtual void EndAggregation();
virtual void Aggregate(CountMetric *metric);
virtual void Aggregate(TimingMetric *metric);
virtual void Aggregate(IntegerMetric *metric);
virtual void Aggregate(BoolMetric *metric);
private:
enum {
// Max length of time we wait for the mutex on StartAggregation.
kMaxMutexWaitMs = 1000, // 1 second for now
};
// Ensures that *key is open, opening it if it's NULL
// @return true on success, false on failure to open key
bool EnsureKey(const wchar_t *name, CRegKey *key);
// Mutex name for locking access to key
CString mutex_name_;
// Subkey name, as per constructor docs
CString key_name_;
// Handle to our subkey under HKCU\Software\Google
CRegKey key_;
// Subkeys under the above
// @{
CRegKey count_key_;
CRegKey timing_key_;
CRegKey integer_key_;
CRegKey bool_key_;
// @}
// Specifies HKLM or HKCU, respectively.
bool is_machine_;
DISALLOW_COPY_AND_ASSIGN(MetricsAggregatorWin32);
};
} // namespace stats_report
#endif // O3D_STATSREPORT_AGGREGATOR_WIN32_H__
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