/*

 * Copyright (C) 2008 Apple 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:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. 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.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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. 

 */

#include "config.h"

#include "WebKitDLL.h"

#include "WebCoreStatistics.h"

#include "COMPropertyBag.h"

#include <JavaScriptCore/JSLock.h>

#include <WebCore/FontCache.h>

#include <WebCore/GlyphPageTreeNode.h>

#include <WebCore/IconDatabase.h>

#include <WebCore/JSDOMWindow.h>

using namespace JSC;

using namespace WebCore;

// WebCoreStatistics ---------------------------------------------------------------------------

WebCoreStatistics::WebCoreStatistics()

: m_refCount(0)

{

    gClassCount++;

    gClassNameCount.add("WebCoreStatistics");

}

WebCoreStatistics::~WebCoreStatistics()

{

    gClassCount--;

    gClassNameCount.remove("WebCoreStatistics");

}

WebCoreStatistics* WebCoreStatistics::createInstance()

{

    WebCoreStatistics* instance = new WebCoreStatistics();

    instance->AddRef();

    return instance;

}

// IUnknown -------------------------------------------------------------------

HRESULT STDMETHODCALLTYPE WebCoreStatistics::QueryInterface(REFIID riid, void** ppvObject)

{

    *ppvObject = 0;

    if (IsEqualGUID(riid, IID_IUnknown))

        *ppvObject = static_cast<WebCoreStatistics*>(this);

    else if (IsEqualGUID(riid, IID_IWebCoreStatistics))

        *ppvObject = static_cast<WebCoreStatistics*>(this);

    else

        return E_NOINTERFACE;

    AddRef();

    return S_OK;

}

ULONG STDMETHODCALLTYPE WebCoreStatistics::AddRef(void)

{

    return ++m_refCount;

}

ULONG STDMETHODCALLTYPE WebCoreStatistics::Release(void)

{

    ULONG newRef = --m_refCount;

    if (!newRef)

        delete(this);

    return newRef;

}

// IWebCoreStatistics ------------------------------------------------------------------------------

HRESULT STDMETHODCALLTYPE WebCoreStatistics::javaScriptObjectsCount( 

    /* [retval][out] */ UINT* count)

{

    if (!count)

        return E_POINTER;

    JSLock lock(SilenceAssertionsOnly);

    *count = (UINT)JSDOMWindow::commonJSGlobalData()->heap.objectCount();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::javaScriptGlobalObjectsCount( 

    /* [retval][out] */ UINT* count)

{

    if (!count)

        return E_POINTER;

    JSLock lock(SilenceAssertionsOnly);

    *count = (UINT)JSDOMWindow::commonJSGlobalData()->heap.globalObjectCount();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::javaScriptProtectedObjectsCount( 

    /* [retval][out] */ UINT* count)

{

    if (!count)

        return E_POINTER;

    JSLock lock(SilenceAssertionsOnly);

    *count = (UINT)JSDOMWindow::commonJSGlobalData()->heap.protectedObjectCount();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::javaScriptProtectedGlobalObjectsCount( 

    /* [retval][out] */ UINT* count)

{

    if (!count)

        return E_POINTER;

    JSLock lock(SilenceAssertionsOnly);

    *count = (UINT)JSDOMWindow::commonJSGlobalData()->heap.protectedGlobalObjectCount();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::javaScriptProtectedObjectTypeCounts( 

    /* [retval][out] */ IPropertyBag2** typeNamesAndCounts)

{

    JSLock lock(SilenceAssertionsOnly);

    OwnPtr<HashCountedSet<const char*> > jsObjectTypeNames(JSDOMWindow::commonJSGlobalData()->heap.protectedObjectTypeCounts());

    typedef HashCountedSet<const char*>::const_iterator Iterator;

    Iterator end = jsObjectTypeNames->end();

    HashMap<String, int> typeCountMap;

    for (Iterator current = jsObjectTypeNames->begin(); current != end; ++current)

        typeCountMap.set(current->first, current->second);

    COMPtr<IPropertyBag2> results(AdoptCOM, COMPropertyBag<int>::createInstance(typeCountMap));

    results.copyRefTo(typeNamesAndCounts);

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::iconPageURLMappingCount( 

    /* [retval][out] */ UINT* count)

{

    if (!count)

        return E_POINTER;

    *count = (UINT) iconDatabase()->pageURLMappingCount();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::iconRetainedPageURLCount( 

    /* [retval][out] */ UINT *count)

{

    if (!count)

        return E_POINTER;

    *count = (UINT) iconDatabase()->retainedPageURLCount();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::iconRecordCount( 

    /* [retval][out] */ UINT *count)

{

    if (!count)

        return E_POINTER;

    *count = (UINT) iconDatabase()->iconRecordCount();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::iconsWithDataCount( 

    /* [retval][out] */ UINT *count)

{

    if (!count)

        return E_POINTER;

    *count = (UINT) iconDatabase()->iconRecordCountWithData();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::cachedFontDataCount( 

    /* [retval][out] */ UINT *count)

{

    if (!count)

        return E_POINTER;

    *count = (UINT) fontCache()->fontDataCount();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::cachedFontDataInactiveCount( 

    /* [retval][out] */ UINT *count)

{

    if (!count)

        return E_POINTER;

    *count = (UINT) fontCache()->inactiveFontDataCount();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::purgeInactiveFontData(void)

{

    fontCache()->purgeInactiveFontData();

    return S_OK;

}

HRESULT STDMETHODCALLTYPE WebCoreStatistics::glyphPageCount( 

    /* [retval][out] */ UINT *count)

{

    if (!count)

        return E_POINTER;

    *count = (UINT) GlyphPageTreeNode::treeGlyphPageCount();

    return S_OK;

}