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      1 /*
      2  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "WebKitDLL.h"
     28 #include "WebCoreStatistics.h"
     29 
     30 #include "COMPropertyBag.h"
     31 #include <JavaScriptCore/JSLock.h>
     32 #include <WebCore/FontCache.h>
     33 #include <WebCore/GlyphPageTreeNode.h>
     34 #include <WebCore/IconDatabase.h>
     35 #include <WebCore/JSDOMWindow.h>
     36 #include <WebCore/SharedBuffer.h>
     37 
     38 using namespace JSC;
     39 using namespace WebCore;
     40 
     41 // WebCoreStatistics ---------------------------------------------------------------------------
     42 
     43 WebCoreStatistics::WebCoreStatistics()
     44 : m_refCount(0)
     45 {
     46     gClassCount++;
     47     gClassNameCount.add("WebCoreStatistics");
     48 }
     49 
     50 WebCoreStatistics::~WebCoreStatistics()
     51 {
     52     gClassCount--;
     53     gClassNameCount.remove("WebCoreStatistics");
     54 }
     55 
     56 WebCoreStatistics* WebCoreStatistics::createInstance()
     57 {
     58     WebCoreStatistics* instance = new WebCoreStatistics();
     59     instance->AddRef();
     60     return instance;
     61 }
     62 
     63 // IUnknown -------------------------------------------------------------------
     64 
     65 HRESULT STDMETHODCALLTYPE WebCoreStatistics::QueryInterface(REFIID riid, void** ppvObject)
     66 {
     67     *ppvObject = 0;
     68     if (IsEqualGUID(riid, IID_IUnknown))
     69         *ppvObject = static_cast<WebCoreStatistics*>(this);
     70     else if (IsEqualGUID(riid, IID_IWebCoreStatistics))
     71         *ppvObject = static_cast<WebCoreStatistics*>(this);
     72     else
     73         return E_NOINTERFACE;
     74 
     75     AddRef();
     76     return S_OK;
     77 }
     78 
     79 ULONG STDMETHODCALLTYPE WebCoreStatistics::AddRef(void)
     80 {
     81     return ++m_refCount;
     82 }
     83 
     84 ULONG STDMETHODCALLTYPE WebCoreStatistics::Release(void)
     85 {
     86     ULONG newRef = --m_refCount;
     87     if (!newRef)
     88         delete(this);
     89 
     90     return newRef;
     91 }
     92 
     93 // IWebCoreStatistics ------------------------------------------------------------------------------
     94 
     95 HRESULT STDMETHODCALLTYPE WebCoreStatistics::javaScriptObjectsCount(
     96     /* [retval][out] */ UINT* count)
     97 {
     98     if (!count)
     99         return E_POINTER;
    100 
    101     JSLock lock(SilenceAssertionsOnly);
    102     *count = (UINT)JSDOMWindow::commonJSGlobalData()->heap.objectCount();
    103     return S_OK;
    104 }
    105 
    106 HRESULT STDMETHODCALLTYPE WebCoreStatistics::javaScriptGlobalObjectsCount(
    107     /* [retval][out] */ UINT* count)
    108 {
    109     if (!count)
    110         return E_POINTER;
    111 
    112     JSLock lock(SilenceAssertionsOnly);
    113     *count = (UINT)JSDOMWindow::commonJSGlobalData()->heap.globalObjectCount();
    114     return S_OK;
    115 }
    116 
    117 HRESULT STDMETHODCALLTYPE WebCoreStatistics::javaScriptProtectedObjectsCount(
    118     /* [retval][out] */ UINT* count)
    119 {
    120     if (!count)
    121         return E_POINTER;
    122 
    123     JSLock lock(SilenceAssertionsOnly);
    124     *count = (UINT)JSDOMWindow::commonJSGlobalData()->heap.protectedObjectCount();
    125     return S_OK;
    126 }
    127 
    128 HRESULT STDMETHODCALLTYPE WebCoreStatistics::javaScriptProtectedGlobalObjectsCount(
    129     /* [retval][out] */ UINT* count)
    130 {
    131     if (!count)
    132         return E_POINTER;
    133 
    134     JSLock lock(SilenceAssertionsOnly);
    135     *count = (UINT)JSDOMWindow::commonJSGlobalData()->heap.protectedGlobalObjectCount();
    136     return S_OK;
    137 }
    138 
    139 HRESULT STDMETHODCALLTYPE WebCoreStatistics::javaScriptProtectedObjectTypeCounts(
    140     /* [retval][out] */ IPropertyBag2** typeNamesAndCounts)
    141 {
    142     JSLock lock(SilenceAssertionsOnly);
    143     OwnPtr<TypeCountSet> jsObjectTypeNames(JSDOMWindow::commonJSGlobalData()->heap.protectedObjectTypeCounts());
    144     typedef TypeCountSet::const_iterator Iterator;
    145     Iterator end = jsObjectTypeNames->end();
    146     HashMap<String, int> typeCountMap;
    147     for (Iterator current = jsObjectTypeNames->begin(); current != end; ++current)
    148         typeCountMap.set(current->first, current->second);
    149 
    150     COMPtr<IPropertyBag2> results(AdoptCOM, COMPropertyBag<int>::createInstance(typeCountMap));
    151     results.copyRefTo(typeNamesAndCounts);
    152     return S_OK;
    153 }
    154 
    155 HRESULT STDMETHODCALLTYPE WebCoreStatistics::iconPageURLMappingCount(
    156     /* [retval][out] */ UINT* count)
    157 {
    158     if (!count)
    159         return E_POINTER;
    160     *count = (UINT) iconDatabase().pageURLMappingCount();
    161     return S_OK;
    162 }
    163 
    164 HRESULT STDMETHODCALLTYPE WebCoreStatistics::iconRetainedPageURLCount(
    165     /* [retval][out] */ UINT *count)
    166 {
    167     if (!count)
    168         return E_POINTER;
    169     *count = (UINT) iconDatabase().retainedPageURLCount();
    170     return S_OK;
    171 }
    172 
    173 HRESULT STDMETHODCALLTYPE WebCoreStatistics::iconRecordCount(
    174     /* [retval][out] */ UINT *count)
    175 {
    176     if (!count)
    177         return E_POINTER;
    178     *count = (UINT) iconDatabase().iconRecordCount();
    179     return S_OK;
    180 }
    181 
    182 HRESULT STDMETHODCALLTYPE WebCoreStatistics::iconsWithDataCount(
    183     /* [retval][out] */ UINT *count)
    184 {
    185     if (!count)
    186         return E_POINTER;
    187     *count = (UINT) iconDatabase().iconRecordCountWithData();
    188     return S_OK;
    189 }
    190 
    191 HRESULT STDMETHODCALLTYPE WebCoreStatistics::cachedFontDataCount(
    192     /* [retval][out] */ UINT *count)
    193 {
    194     if (!count)
    195         return E_POINTER;
    196     *count = (UINT) fontCache()->fontDataCount();
    197     return S_OK;
    198 }
    199 
    200 HRESULT STDMETHODCALLTYPE WebCoreStatistics::cachedFontDataInactiveCount(
    201     /* [retval][out] */ UINT *count)
    202 {
    203     if (!count)
    204         return E_POINTER;
    205     *count = (UINT) fontCache()->inactiveFontDataCount();
    206     return S_OK;
    207 }
    208 
    209 HRESULT STDMETHODCALLTYPE WebCoreStatistics::purgeInactiveFontData(void)
    210 {
    211     fontCache()->purgeInactiveFontData();
    212     return S_OK;
    213 }
    214 
    215 HRESULT STDMETHODCALLTYPE WebCoreStatistics::glyphPageCount(
    216     /* [retval][out] */ UINT *count)
    217 {
    218     if (!count)
    219         return E_POINTER;
    220     *count = (UINT) GlyphPageTreeNode::treeGlyphPageCount();
    221     return S_OK;
    222 }
    223