Index: third_party/WebKit/Source/wtf/text/StringImplCF.cpp |
diff --git a/third_party/WebKit/Source/wtf/text/StringImplCF.cpp b/third_party/WebKit/Source/wtf/text/StringImplCF.cpp |
deleted file mode 100644 |
index befe9c4766a1c915ae40d393c1191cc1ef0e7fb0..0000000000000000000000000000000000000000 |
--- a/third_party/WebKit/Source/wtf/text/StringImplCF.cpp |
+++ /dev/null |
@@ -1,164 +0,0 @@ |
-/* |
- * Copyright (C) 2006, 2009, 2012 Apple Inc. All rights reserved. |
- * |
- * This library is free software; you can redistribute it and/or |
- * modify it under the terms of the GNU Library General Public |
- * License as published by the Free Software Foundation; either |
- * version 2 of the License, or (at your option) any later version. |
- * |
- * This library is distributed in the hope that it will be useful, |
- * but WITHOUT ANY WARRANTY; without even the implied warranty of |
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
- * Library General Public License for more details. |
- * |
- * You should have received a copy of the GNU Library General Public License |
- * along with this library; see the file COPYING.LIB. If not, write to |
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
- * Boston, MA 02110-1301, USA. |
- * |
- */ |
- |
-#include "wtf/text/StringImpl.h" |
- |
-#if OS(MACOSX) |
- |
-#include "wtf/PassRefPtr.h" |
-#include "wtf/RetainPtr.h" |
-#include "wtf/Threading.h" |
-#include "wtf/allocator/Partitions.h" |
-#include <CoreFoundation/CoreFoundation.h> |
- |
-namespace WTF { |
- |
-namespace StringWrapperCFAllocator { |
- |
-static StringImpl* currentString; |
- |
-static const void* retain(const void* info) { |
- return info; |
-} |
- |
-static void release(const void*) { |
- NOTREACHED(); |
-} |
- |
-static CFStringRef copyDescription(const void*) { |
- return CFSTR("WTF::String-based allocator"); |
-} |
- |
-static void* allocate(CFIndex size, CFOptionFlags, void*) { |
- StringImpl* underlyingString = 0; |
- if (isMainThread()) { |
- underlyingString = currentString; |
- if (underlyingString) { |
- currentString = 0; |
- underlyingString |
- ->ref(); // Balanced by call to deref in deallocate below. |
- } |
- } |
- StringImpl** header = static_cast<StringImpl**>(WTF::Partitions::fastMalloc( |
- sizeof(StringImpl*) + size, WTF_HEAP_PROFILER_TYPE_NAME(StringImpl*))); |
- *header = underlyingString; |
- return header + 1; |
-} |
- |
-static void* reallocate(void* pointer, CFIndex newSize, CFOptionFlags, void*) { |
- size_t newAllocationSize = sizeof(StringImpl*) + newSize; |
- StringImpl** header = static_cast<StringImpl**>(pointer) - 1; |
- ASSERT(!*header); |
- header = static_cast<StringImpl**>(WTF::Partitions::fastRealloc( |
- header, newAllocationSize, WTF_HEAP_PROFILER_TYPE_NAME(StringImpl*))); |
- return header + 1; |
-} |
- |
-static void deallocateOnMainThread(void* headerPointer) { |
- StringImpl** header = static_cast<StringImpl**>(headerPointer); |
- StringImpl* underlyingString = *header; |
- DCHECK(underlyingString); |
- underlyingString->deref(); // Balanced by call to ref in allocate above. |
- WTF::Partitions::fastFree(header); |
-} |
- |
-static void deallocate(void* pointer, void*) { |
- StringImpl** header = static_cast<StringImpl**>(pointer) - 1; |
- StringImpl* underlyingString = *header; |
- if (!underlyingString) { |
- WTF::Partitions::fastFree(header); |
- } else { |
- if (!isMainThread()) { |
- internal::callOnMainThread(&deallocateOnMainThread, header); |
- } else { |
- underlyingString->deref(); // Balanced by call to ref in allocate above. |
- WTF::Partitions::fastFree(header); |
- } |
- } |
-} |
- |
-static CFIndex preferredSize(CFIndex size, CFOptionFlags, void*) { |
- // FIXME: If FastMalloc provided a "good size" callback, we'd want to use it |
- // here. Note that this optimization would help performance for strings |
- // created with the allocator that are mutable, and those typically are only |
- // created by callers who make a new string using the old string's allocator, |
- // such as some of the call sites in CFURL. |
- return size; |
-} |
- |
-static CFAllocatorRef create() { |
- CFAllocatorContext context = { |
- 0, 0, retain, release, copyDescription, |
- allocate, reallocate, deallocate, preferredSize}; |
- return CFAllocatorCreate(0, &context); |
-} |
- |
-static CFAllocatorRef allocator() { |
- static CFAllocatorRef allocator = create(); |
- return allocator; |
-} |
- |
-} // namespace StringWrapperCFAllocator |
- |
-RetainPtr<CFStringRef> StringImpl::createCFString() { |
- // Since garbage collection isn't compatible with custom allocators, we |
- // can't use the NoCopy variants of CFStringCreate*() when GC is enabled. |
- if (!m_length || !isMainThread()) { |
- if (is8Bit()) |
- return adoptCF(CFStringCreateWithBytes( |
- 0, reinterpret_cast<const UInt8*>(characters8()), m_length, |
- kCFStringEncodingISOLatin1, false)); |
- return adoptCF(CFStringCreateWithCharacters( |
- 0, reinterpret_cast<const UniChar*>(characters16()), m_length)); |
- } |
- CFAllocatorRef allocator = StringWrapperCFAllocator::allocator(); |
- |
- // Put pointer to the StringImpl in a global so the allocator can store it |
- // with the CFString. |
- DCHECK(!StringWrapperCFAllocator::currentString); |
- StringWrapperCFAllocator::currentString = this; |
- |
- CFStringRef string; |
- if (is8Bit()) |
- string = CFStringCreateWithBytesNoCopy( |
- allocator, reinterpret_cast<const UInt8*>(characters8()), m_length, |
- kCFStringEncodingISOLatin1, false, kCFAllocatorNull); |
- else |
- string = CFStringCreateWithCharactersNoCopy( |
- allocator, reinterpret_cast<const UniChar*>(characters16()), m_length, |
- kCFAllocatorNull); |
- // CoreFoundation might not have to allocate anything, we clear currentString |
- // in case we did not execute allocate(). |
- StringWrapperCFAllocator::currentString = 0; |
- |
- return adoptCF(string); |
-} |
- |
-// On StringImpl creation we could check if the allocator is the |
-// StringWrapperCFAllocator. If it is, then we could find the original |
-// StringImpl and just return that. But to do that we'd have to compute the |
-// offset from CFStringRef to the allocated block; the CFStringRef is *not* at |
-// the start of an allocated block. Testing shows 1000x more calls to |
-// createCFString than calls to the create functions with the appropriate |
-// allocator, so it's probably not urgent optimize that case. |
- |
-} // namespace WTF |
- |
-#endif // OS(MACOSX) |