blob: 33ebc88ca2da27cd532a0f825c33544271fc8a2a [file] [log] [blame]
// Copyright 2013 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 "init_webrtc.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/metrics/histogram.h"
#include "base/native_library.h"
#include "base/path_service.h"
#include "base/trace_event/trace_event.h"
#include "third_party/webrtc/base/event_tracer.h"
#include "third_party/webrtc/system_wrappers/include/cpu_info.h"
#include "third_party/webrtc_overrides/webrtc/base/logging.h"
const unsigned char* GetCategoryGroupEnabled(const char* category_group) {
return TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED(category_group);
}
void AddTraceEvent(char phase,
const unsigned char* category_group_enabled,
const char* name,
unsigned long long id,
int num_args,
const char** arg_names,
const unsigned char* arg_types,
const unsigned long long* arg_values,
unsigned char flags) {
TRACE_EVENT_API_ADD_TRACE_EVENT(
phase, category_group_enabled, name, trace_event_internal::kGlobalScope,
id, num_args, arg_names, arg_types, arg_values, NULL, flags);
}
namespace webrtc {
// Define webrtc::metrics functions to provide webrtc with implementations.
namespace metrics {
// This class doesn't actually exist, so don't go looking for it :)
// This type is just fwd declared here in order to use it as an opaque type
// between the Histogram functions in this file.
class Histogram;
Histogram* HistogramFactoryGetCounts(
const std::string& name, int min, int max, int bucket_count) {
return reinterpret_cast<Histogram*>(
base::Histogram::FactoryGet(name, min, max, bucket_count,
base::HistogramBase::kUmaTargetedHistogramFlag));
}
Histogram* HistogramFactoryGetEnumeration(
const std::string& name, int boundary) {
return reinterpret_cast<Histogram*>(
base::LinearHistogram::FactoryGet(name, 1, boundary, boundary + 1,
base::HistogramBase::kUmaTargetedHistogramFlag));
}
void HistogramAdd(
Histogram* histogram_pointer, const std::string& name, int sample) {
base::HistogramBase* ptr =
reinterpret_cast<base::HistogramBase*>(histogram_pointer);
// The name should not vary.
DCHECK(ptr->histogram_name() == name);
ptr->Add(sample);
}
} // namespace metrics
} // namespace webrtc
bool InitializeWebRtcModule() {
// Workaround for crbug.com/176522
// On Linux, we can't fetch the number of cores after the sandbox has been
// initialized, so we call DetectNumberOfCores() here, to cache the value.
webrtc::CpuInfo::DetectNumberOfCores();
webrtc::SetupEventTracer(&GetCategoryGroupEnabled, &AddTraceEvent);
return true;
}