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// Copyright (c) 2010 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/extensions/v8/benchmarking_extension.h"
#include "base/command_line.h"
#include "base/metrics/stats_table.h"
#include "base/time.h"
#include "net/http/http_network_layer.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebCache.h"
#include "webkit/glue/webkit_glue.h"
using WebKit::WebCache;
namespace extensions_v8 {
const char* kBenchmarkingExtensionName = "v8/Benchmarking";
class BenchmarkingWrapper : public v8::Extension {
public:
BenchmarkingWrapper() :
v8::Extension(kBenchmarkingExtensionName,
"if (typeof(chrome) == 'undefined') {"
" chrome = {};"
"};"
"if (typeof(chrome.benchmarking) == 'undefined') {"
" chrome.benchmarking = {};"
"};"
"chrome.benchmarking.clearCache = function(preserve_ssl_entries) {"
" native function ClearCache();"
" ClearCache(preserve_ssl_entries);"
"};"
"chrome.benchmarking.clearHostResolverCache = function() {"
" native function ClearHostResolverCache();"
" ClearHostResolverCache();"
"};"
"chrome.benchmarking.clearPredictorCache = function() {"
" native function ClearPredictorCache();"
" ClearPredictorCache();"
"};"
"chrome.benchmarking.closeConnections = function() {"
" native function CloseConnections();"
" CloseConnections();"
"};"
"chrome.benchmarking.counter = function(name) {"
" native function GetCounter();"
" return GetCounter(name);"
"};"
"chrome.benchmarking.enableSpdy = function(name) {"
" native function EnableSpdy();"
" EnableSpdy(name);"
"};"
"chrome.benchmarking.isSingleProcess = function() {"
" native function IsSingleProcess();"
" return IsSingleProcess();"
"};"
"chrome.Interval = function() {"
" var start_ = 0;"
" var stop_ = 0;"
" native function HiResTime();"
" this.start = function() {"
" stop_ = 0;"
" start_ = HiResTime();"
" };"
" this.stop = function() {"
" stop_ = HiResTime();"
" if (start_ == 0)"
" stop_ = 0;"
" };"
" this.microseconds = function() {"
" var stop = stop_;"
" if (stop == 0 && start_ != 0)"
" stop = HiResTime();"
" return Math.ceil(stop - start_);"
" };"
"}"
) {}
virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
v8::Handle<v8::String> name) {
if (name->Equals(v8::String::New("CloseConnections"))) {
return v8::FunctionTemplate::New(CloseConnections);
} else if (name->Equals(v8::String::New("ClearCache"))) {
return v8::FunctionTemplate::New(ClearCache);
} else if (name->Equals(v8::String::New("ClearHostResolverCache"))) {
return v8::FunctionTemplate::New(ClearHostResolverCache);
} else if (name->Equals(v8::String::New("ClearPredictorCache"))) {
return v8::FunctionTemplate::New(ClearPredictorCache);
} else if (name->Equals(v8::String::New("EnableSpdy"))) {
return v8::FunctionTemplate::New(EnableSpdy);
} else if (name->Equals(v8::String::New("GetCounter"))) {
return v8::FunctionTemplate::New(GetCounter);
} else if (name->Equals(v8::String::New("IsSingleProcess"))) {
return v8::FunctionTemplate::New(IsSingleProcess);
} else if (name->Equals(v8::String::New("HiResTime"))) {
return v8::FunctionTemplate::New(HiResTime);
}
return v8::Handle<v8::FunctionTemplate>();
}
static v8::Handle<v8::Value> CloseConnections(const v8::Arguments& args) {
webkit_glue::CloseCurrentConnections();
return v8::Undefined();
}
static v8::Handle<v8::Value> ClearCache(const v8::Arguments& args) {
bool preserve_ssl_host_entries = false;
if (args.Length() && args[0]->IsBoolean())
preserve_ssl_host_entries = args[0]->BooleanValue();
webkit_glue::ClearCache(preserve_ssl_host_entries);
WebCache::clear();
return v8::Undefined();
}
static v8::Handle<v8::Value> ClearHostResolverCache(
const v8::Arguments& args) {
webkit_glue::ClearHostResolverCache();
return v8::Undefined();
}
static v8::Handle<v8::Value> ClearPredictorCache(
const v8::Arguments& args) {
webkit_glue::ClearPredictorCache();
return v8::Undefined();
}
static v8::Handle<v8::Value> EnableSpdy(const v8::Arguments& args) {
if (!args.Length() || !args[0]->IsBoolean())
return v8::Undefined();
webkit_glue::EnableSpdy(args[0]->BooleanValue());
return v8::Undefined();
}
static v8::Handle<v8::Value> GetCounter(const v8::Arguments& args) {
if (!args.Length() || !args[0]->IsString() || !base::StatsTable::current())
return v8::Undefined();
// Extract the name argument
char name[256];
name[0] = 'c';
name[1] = ':';
args[0]->ToString()->WriteAscii(&name[2], 0, sizeof(name) - 3);
int counter = base::StatsTable::current()->GetCounterValue(name);
return v8::Integer::New(counter);
}
static v8::Handle<v8::Value> IsSingleProcess(const v8::Arguments& args) {
return v8::Boolean::New(webkit_glue::IsSingleProcess());
}
static v8::Handle<v8::Value> HiResTime(const v8::Arguments& args) {
return v8::Number::New(
static_cast<double>(base::TimeTicks::HighResNow().ToInternalValue()));
}
};
v8::Extension* BenchmarkingExtension::Get() {
return new BenchmarkingWrapper();
}
} // namespace extensions_v8
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