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// Copyright (c) 2006-2008 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 "config.h"
#include "Cache.h"
#include "base/stats_table.h"
#include "webkit/extensions/v8/benchmarking_extension.h"
#include "webkit/glue/webkit_glue.h"
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() {"
" native function ClearCache();"
" ClearCache();"
"};"
"chrome.benchmarking.closeConnections = function() {"
" native function CloseConnections();"
" CloseConnections();"
"};"
"chrome.benchmarking.counter = function(name) {"
" native function GetCounter();"
" return GetCounter(name);"
"};"
) {}
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("GetCounter"))) {
return v8::FunctionTemplate::New(GetCounter);
}
return v8::Handle<v8::FunctionTemplate>();
}
static v8::Handle<v8::Value> CloseConnections(const v8::Arguments& args) {
webkit_glue::CloseIdleConnections();
return v8::Undefined();
}
static v8::Handle<v8::Value> ClearCache(const v8::Arguments& args) {
// TODO(mbelshe): should be enable/disable?
webkit_glue::SetCacheMode(false);
// Disabling and re-enabling the cache forces it to flush.
WebCore::cache()->setDisabled(true);
WebCore::cache()->setDisabled(false);
return v8::Undefined();
}
static v8::Handle<v8::Value> GetCounter(const v8::Arguments& args) {
if (!args.Length() || !args[0]->IsString())
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 = StatsTable::current()->GetCounterValue(name);
return v8::Integer::New(counter);
}
};
v8::Extension* BenchmarkingExtension::Get() {
return new BenchmarkingWrapper();
}
} // namespace extensions_v8
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