WebCoreStatistics.mm   [plain text]

/*
* Copyright (C) 2005, 2006, 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.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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.
*/

#import "WebCoreStatistics.h"

#import "DOMElementInternal.h"
#import "WebCache.h"
#import "WebFrameInternal.h"
#import <JavaScriptCore/JSLock.h>
#import <JavaScriptCore/MemoryStatistics.h>
#import <WebCore/BackForwardCache.h>
#import <WebCore/CommonVM.h>
#import <WebCore/FontCache.h>
#import <WebCore/Frame.h>
#import <WebCore/GCController.h>
#import <WebCore/GlyphPage.h>
#import <WebCore/GraphicsContext.h>
#import <WebCore/JSDOMWindow.h>
#import <WebCore/PageConsoleClient.h>
#import <WebCore/PrintContext.h>
#import <WebCore/RenderTreeAsText.h>
#import <WebCore/RenderView.h>

using namespace JSC;
using namespace WebCore;

@implementation WebCoreStatistics

+ (NSArray *)statistics
{
return [WebCache statistics];
}

+ (size_t)javaScriptObjectsCount
{
JSLockHolder lock(commonVM());
return commonVM().heap.objectCount();
}

+ (size_t)javaScriptGlobalObjectsCount
{
JSLockHolder lock(commonVM());
return commonVM().heap.globalObjectCount();
}

+ (size_t)javaScriptProtectedObjectsCount
{
JSLockHolder lock(commonVM());
return commonVM().heap.protectedObjectCount();
}

+ (size_t)javaScriptProtectedGlobalObjectsCount
{
JSLockHolder lock(commonVM());
return commonVM().heap.protectedGlobalObjectCount();
}

+ (NSCountedSet *)javaScriptProtectedObjectTypeCounts
{
JSLockHolder lock(commonVM());

NSCountedSet *result = [NSCountedSet set];

std::unique_ptr<TypeCountSet> counts(commonVM().heap.protectedObjectTypeCounts());
HashCountedSet<const char*>::iterator end = counts->end();
for (HashCountedSet<const char*>::iterator it = counts->begin(); it != end; ++it)
for (unsigned i = 0; i < it->value; ++i)
[result addObject:[NSString stringWithUTF8String:it->key]];

return result;
}

+ (NSCountedSet *)javaScriptObjectTypeCounts
{
JSLockHolder lock(commonVM());

NSCountedSet *result = [NSCountedSet set];

std::unique_ptr<TypeCountSet> counts(commonVM().heap.objectTypeCounts());
HashCountedSet<const char*>::iterator end = counts->end();
for (HashCountedSet<const char*>::iterator it = counts->begin(); it != end; ++it)
for (unsigned i = 0; i < it->value; ++i)
[result addObject:[NSString stringWithUTF8String:it->key]];

return result;
}

+ (void)garbageCollectJavaScriptObjects
{
GCController::singleton().garbageCollectNow();
}

+ (void)garbageCollectJavaScriptObjectsOnAlternateThreadForDebugging:(BOOL)waitUntilDone
{
GCController::singleton().garbageCollectOnAlternateThreadForDebugging(waitUntilDone);
}

+ (void)setJavaScriptGarbageCollectorTimerEnabled:(BOOL)enable
{
GCController::singleton().setJavaScriptGarbageCollectorTimerEnabled(enable);
}

+ (size_t)iconPageURLMappingCount
{
return 0;
}

+ (size_t)iconRetainedPageURLCount
{
return 0;
}

+ (size_t)iconRecordCount
{
return 0;
}

+ (size_t)iconsWithDataCount
{
return 0;
}

+ (size_t)cachedFontDataCount
{
return FontCache::singleton().fontCount();
}

+ (size_t)cachedFontDataInactiveCount
{
return FontCache::singleton().inactiveFontCount();
}

+ (void)purgeInactiveFontData
{
FontCache::singleton().purgeInactiveFontData();
}

+ (size_t)glyphPageCount
{
return GlyphPage::count();
}

+ (BOOL)shouldPrintExceptions
{
JSLockHolder lock(commonVM());
return PageConsoleClient::shouldPrintExceptions();
}

+ (void)setShouldPrintExceptions:(BOOL)print
{
JSLockHolder lock(commonVM());
PageConsoleClient::setShouldPrintExceptions(print);
}

+ (void)emptyCache
{
[WebCache empty];
}

+ (void)setCacheDisabled:(BOOL)disabled
{
[WebCache setDisabled:disabled];
}

+ (void)startIgnoringWebCoreNodeLeaks
{
WebCore::Node::startIgnoringLeaks();
}

+ (void)stopIgnoringWebCoreNodeLeaks
{
WebCore::Node::stopIgnoringLeaks();
}

+ (NSDictionary *)memoryStatistics
{
WTF::FastMallocStatistics fastMallocStatistics = WTF::fastMallocStatistics();

JSLockHolder lock(commonVM());
size_t heapSize = commonVM().heap.size();
size_t heapFree = commonVM().heap.capacity() - heapSize;
GlobalMemoryStatistics globalMemoryStats = globalMemoryStatistics();

return [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithInt:fastMallocStatistics.reservedVMBytes], @"FastMallocReservedVMBytes",
[NSNumber numberWithInt:fastMallocStatistics.committedVMBytes], @"FastMallocCommittedVMBytes",
[NSNumber numberWithInt:fastMallocStatistics.freeListBytes], @"FastMallocFreeListBytes",
[NSNumber numberWithInt:heapSize], @"JavaScriptHeapSize",
[NSNumber numberWithInt:heapFree], @"JavaScriptFreeSize",
[NSNumber numberWithUnsignedInt:(unsigned int)globalMemoryStats.stackBytes], @"JavaScriptStackSize",
[NSNumber numberWithUnsignedInt:(unsigned int)globalMemoryStats.JITBytes], @"JavaScriptJITSize",
nil];
}

+ (void)returnFreeMemoryToSystem
{
WTF::releaseFastMallocFreeMemory();
}

+ (int)cachedPageCount
{
return BackForwardCache::singleton().pageCount();
}

+ (int)cachedFrameCount
{
return BackForwardCache::singleton().frameCount();
}

// Deprecated
+ (int)autoreleasedPageCount
{
return 0;
}

// Deprecated
+ (size_t)javaScriptNoGCAllowedObjectsCount
{
return 0;
}

+ (size_t)javaScriptReferencedObjectsCount
{
JSLockHolder lock(commonVM());
return commonVM().heap.protectedObjectCount();
}

+ (NSSet *)javaScriptRootObjectClasses
{
return [self javaScriptRootObjectTypeCounts];
}

+ (size_t)javaScriptInterpretersCount
{
return [self javaScriptProtectedGlobalObjectsCount];
}

+ (NSCountedSet *)javaScriptRootObjectTypeCounts
{
return [self javaScriptProtectedObjectTypeCounts];
}

@end

@implementation WebFrame (WebKitDebug)

- (NSString *)renderTreeAsExternalRepresentationForPrinting
{
return externalRepresentation(_private->coreFrame, { RenderAsTextFlag::PrintingMode });
}

static OptionSet<RenderAsTextFlag> toRenderAsTextFlags(WebRenderTreeAsTextOptions options)
{
OptionSet<RenderAsTextFlag> flags;

if (options & WebRenderTreeAsTextShowAllLayers)
flags.add(RenderAsTextFlag::ShowAllLayers);
if (options & WebRenderTreeAsTextShowLayerNesting)
flags.add(RenderAsTextFlag::ShowLayerNesting);
if (options & WebRenderTreeAsTextShowCompositedLayers)
flags.add(RenderAsTextFlag::ShowCompositedLayers);
if (options & WebRenderTreeAsTextShowOverflow)
flags.add(RenderAsTextFlag::ShowOverflow);
if (options & WebRenderTreeAsTextShowSVGGeometry)
flags.add(RenderAsTextFlag::ShowSVGGeometry);
if (options & WebRenderTreeAsTextShowLayerFragments)
flags.add(RenderAsTextFlag::ShowLayerFragments);

return flags;
}

- (NSString *)renderTreeAsExternalRepresentationWithOptions:(WebRenderTreeAsTextOptions)options
{
return externalRepresentation(_private->coreFrame, toRenderAsTextFlags(options));
}

- (int)numberOfPagesWithPageWidth:(float)pageWidthInPixels pageHeight:(float)pageHeightInPixels
{
Frame* coreFrame = _private->coreFrame;
if (!coreFrame)
return -1;

return PrintContext::numberOfPages(*coreFrame, FloatSize(pageWidthInPixels, pageHeightInPixels));
}

- (void)printToCGContext:(CGContextRef)cgContext pageWidth:(float)pageWidthInPixels pageHeight:(float)pageHeightInPixels
{
Frame* coreFrame = _private->coreFrame;
if (!coreFrame)
return;

GraphicsContext graphicsContext(cgContext);
PrintContext::spoolAllPagesWithBoundaries(*coreFrame, graphicsContext, FloatSize(pageWidthInPixels, pageHeightInPixels));
}

@end