| Index: base/files/memory_mapped_file_win.cc
|
| diff --git a/base/files/memory_mapped_file_win.cc b/base/files/memory_mapped_file_win.cc
|
| deleted file mode 100644
|
| index 4e7e934e1c858823f13a2c7842a1daa0e390591b..0000000000000000000000000000000000000000
|
| --- a/base/files/memory_mapped_file_win.cc
|
| +++ /dev/null
|
| @@ -1,92 +0,0 @@
|
| -// Copyright 2013 The Chromium Authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -#include "base/files/memory_mapped_file.h"
|
| -
|
| -#include "base/files/file_path.h"
|
| -#include "base/strings/string16.h"
|
| -#include "base/threading/thread_restrictions.h"
|
| -
|
| -namespace base {
|
| -
|
| -MemoryMappedFile::MemoryMappedFile() : data_(NULL), length_(0), image_(false) {
|
| -}
|
| -
|
| -bool MemoryMappedFile::InitializeAsImageSection(const FilePath& file_name) {
|
| - image_ = true;
|
| - return Initialize(file_name);
|
| -}
|
| -
|
| -bool MemoryMappedFile::MapFileRegionToMemory(
|
| - const MemoryMappedFile::Region& region) {
|
| - ThreadRestrictions::AssertIOAllowed();
|
| -
|
| - if (!file_.IsValid())
|
| - return false;
|
| -
|
| - int flags = image_ ? SEC_IMAGE | PAGE_READONLY : PAGE_READONLY;
|
| -
|
| - file_mapping_.Set(::CreateFileMapping(file_.GetPlatformFile(), NULL,
|
| - flags, 0, 0, NULL));
|
| - if (!file_mapping_.IsValid())
|
| - return false;
|
| -
|
| - LARGE_INTEGER map_start = {0};
|
| - SIZE_T map_size = 0;
|
| - int32 data_offset = 0;
|
| -
|
| - if (region == MemoryMappedFile::Region::kWholeFile) {
|
| - int64 file_len = file_.GetLength();
|
| - if (file_len <= 0 || file_len > kint32max)
|
| - return false;
|
| - length_ = static_cast<size_t>(file_len);
|
| - } else {
|
| - // The region can be arbitrarily aligned. MapViewOfFile, instead, requires
|
| - // that the start address is aligned to the VM granularity (which is
|
| - // typically larger than a page size, for instance 32k).
|
| - // Also, conversely to POSIX's mmap, the |map_size| doesn't have to be
|
| - // aligned and must be less than or equal the mapped file size.
|
| - // We map here the outer region [|aligned_start|, |aligned_start+size|]
|
| - // which contains |region| and then add up the |data_offset| displacement.
|
| - int64 aligned_start = 0;
|
| - int64 ignored = 0;
|
| - CalculateVMAlignedBoundaries(
|
| - region.offset, region.size, &aligned_start, &ignored, &data_offset);
|
| - int64 size = region.size + data_offset;
|
| -
|
| - // Ensure that the casts below in the MapViewOfFile call are sane.
|
| - if (aligned_start < 0 || size < 0 ||
|
| - static_cast<uint64>(size) > std::numeric_limits<SIZE_T>::max()) {
|
| - DLOG(ERROR) << "Region bounds are not valid for MapViewOfFile";
|
| - return false;
|
| - }
|
| - map_start.QuadPart = aligned_start;
|
| - map_size = static_cast<SIZE_T>(size);
|
| - length_ = static_cast<size_t>(region.size);
|
| - }
|
| -
|
| - data_ = static_cast<uint8*>(::MapViewOfFile(file_mapping_.Get(),
|
| - FILE_MAP_READ,
|
| - map_start.HighPart,
|
| - map_start.LowPart,
|
| - map_size));
|
| - if (data_ == NULL)
|
| - return false;
|
| - data_ += data_offset;
|
| - return true;
|
| -}
|
| -
|
| -void MemoryMappedFile::CloseHandles() {
|
| - if (data_)
|
| - ::UnmapViewOfFile(data_);
|
| - if (file_mapping_.IsValid())
|
| - file_mapping_.Close();
|
| - if (file_.IsValid())
|
| - file_.Close();
|
| -
|
| - data_ = NULL;
|
| - length_ = 0;
|
| -}
|
| -
|
| -} // namespace base
|
|
|