Index: Source/WTF/wtf/PageAllocation.h |
diff --git a/Source/WTF/wtf/PageAllocation.h b/Source/WTF/wtf/PageAllocation.h |
deleted file mode 100644 |
index 18d31880c04dc40a3883138b785f211814ddd67b..0000000000000000000000000000000000000000 |
--- a/Source/WTF/wtf/PageAllocation.h |
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@@ -1,120 +0,0 @@ |
-/* |
- * Copyright (C) 2010 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. |
- */ |
- |
-#ifndef PageAllocation_h |
-#define PageAllocation_h |
- |
-#include <wtf/Assertions.h> |
-#include <wtf/OSAllocator.h> |
-#include <wtf/PageBlock.h> |
-#include <wtf/UnusedParam.h> |
-#include <wtf/VMTags.h> |
-#include <algorithm> |
- |
-#if OS(DARWIN) |
-#include <mach/mach_init.h> |
-#include <mach/vm_map.h> |
-#endif |
- |
-#if OS(WINDOWS) |
-#include <malloc.h> |
-#include <windows.h> |
-#endif |
- |
-#if HAVE(ERRNO_H) |
-#include <errno.h> |
-#endif |
- |
-#if HAVE(MMAP) |
-#include <sys/mman.h> |
-#include <unistd.h> |
-#endif |
- |
-namespace WTF { |
- |
-/* |
- PageAllocation |
- |
- The PageAllocation class provides a cross-platform memory allocation interface |
- with similar capabilities to posix mmap/munmap. Memory is allocated by calling |
- PageAllocation::allocate, and deallocated by calling deallocate on the |
- PageAllocation object. The PageAllocation holds the allocation's base pointer |
- and size. |
- |
- The allocate method is passed the size required (which must be a multiple of |
- the system page size, which can be accessed using PageAllocation::pageSize). |
- Callers may also optinally provide a flag indicating the usage (for use by |
- system memory usage tracking tools, where implemented), and boolean values |
- specifying the required protection (defaulting to writable, non-executable). |
-*/ |
- |
-class PageAllocation : private PageBlock { |
-public: |
- PageAllocation() |
- { |
- } |
- |
- using PageBlock::size; |
- using PageBlock::base; |
- |
-#ifndef __clang__ |
- using PageBlock::operator bool; |
-#else |
- // FIXME: This is a workaround for <rdar://problem/8876150>, wherein Clang incorrectly emits an access |
- // control warning when a client tries to use operator bool exposed above via "using PageBlock::operator bool". |
- operator bool() const { return PageBlock::operator bool(); } |
-#endif |
- |
- static PageAllocation allocate(size_t size, OSAllocator::Usage usage = OSAllocator::UnknownUsage, bool writable = true, bool executable = false) |
- { |
- ASSERT(isPageAligned(size)); |
- return PageAllocation(OSAllocator::reserveAndCommit(size, usage, writable, executable), size); |
- } |
- |
- void deallocate() |
- { |
- // Clear base & size before calling release; if this is *inside* allocation |
- // then we won't be able to clear then after deallocating the memory. |
- PageAllocation tmp; |
- std::swap(tmp, *this); |
- |
- ASSERT(tmp); |
- ASSERT(!*this); |
- |
- OSAllocator::decommitAndRelease(tmp.base(), tmp.size()); |
- } |
- |
-private: |
- PageAllocation(void* base, size_t size) |
- : PageBlock(base, size, false) |
- { |
- } |
-}; |
- |
-} // namespace WTF |
- |
-using WTF::PageAllocation; |
- |
-#endif // PageAllocation_h |