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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "webkit/plugins/ppapi/ppb_uma_private_impl.h"
#include "base/metrics/histogram.h"
#include "ppapi/c/pp_var.h"
#include "ppapi/c/private/ppb_uma_private.h"
#include "ppapi/shared_impl/var.h"
#include "webkit/glue/webkit_glue.h"
using ppapi::StringVar;
namespace webkit {
namespace ppapi {
namespace {
#define RETURN_IF_BAD_ARGS(_name, _sample, _min, _max, _bucket_count) \
do { \
if (_name.type != PP_VARTYPE_STRING || _name.value.as_id == 0) \
return; \
if (_min >= _max) \
return; \
if (_bucket_count <= 1) \
return; \
} while (0)
void HistogramCustomTimes(PP_Var name,
int64_t sample,
int64_t min, int64_t max,
uint32_t bucket_count) {
RETURN_IF_BAD_ARGS(name, sample, min, max, bucket_count);
StringVar* name_string = StringVar::FromPPVar(name);
if (name_string == NULL)
return;
base::HistogramBase* counter =
base::Histogram::FactoryTimeGet(
name_string->value(),
base::TimeDelta::FromMilliseconds(min),
base::TimeDelta::FromMilliseconds(max),
bucket_count,
base::HistogramBase::kUmaTargetedHistogramFlag);
counter->AddTime(base::TimeDelta::FromMilliseconds(sample));
}
void HistogramCustomCounts(PP_Var name,
int32_t sample,
int32_t min, int32_t max,
uint32_t bucket_count) {
RETURN_IF_BAD_ARGS(name, sample, min, max, bucket_count);
StringVar* name_string = StringVar::FromPPVar(name);
if (name_string == NULL)
return;
base::HistogramBase* counter =
base::Histogram::FactoryGet(
name_string->value(),
min,
max,
bucket_count,
base::HistogramBase::kUmaTargetedHistogramFlag);
counter->Add(sample);
}
void HistogramEnumeration(PP_Var name,
int32_t sample,
int32_t boundary_value) {
RETURN_IF_BAD_ARGS(name, sample, 1, boundary_value, boundary_value + 1);
StringVar* name_string = StringVar::FromPPVar(name);
if (name_string == NULL)
return;
base::HistogramBase* counter =
base::LinearHistogram::FactoryGet(
name_string->value(),
1,
boundary_value,
boundary_value + 1,
base::HistogramBase::kUmaTargetedHistogramFlag);
counter->Add(sample);
}
} // namespace
const PPB_UMA_Private ppb_uma = {
&HistogramCustomTimes,
&HistogramCustomCounts,
&HistogramEnumeration,
};
// static
const PPB_UMA_Private* PPB_UMA_Private_Impl::GetInterface() {
return &ppb_uma;
}
} // namespace ppapi
} // namespace webkit
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