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46 lines
1.6 KiB
C++
46 lines
1.6 KiB
C++
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/disk_cache/cache_util.h"
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#include <windows.h>
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#include "base/files/file_path.h"
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#include "base/logging.h"
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#include "base/win/scoped_handle.h"
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namespace disk_cache {
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bool MoveCache(const base::FilePath& from_path, const base::FilePath& to_path) {
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// I don't want to use the shell version of move because if something goes
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// wrong, that version will attempt to move file by file and fail at the end.
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if (!MoveFileEx(from_path.value().c_str(), to_path.value().c_str(), 0)) {
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LOG(ERROR) << "Unable to move the cache: " << GetLastError();
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return false;
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}
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return true;
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}
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bool DeleteCacheFile(const base::FilePath& name) {
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// We do a simple delete, without ever falling back to SHFileOperation, as the
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// version from base does.
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if (!DeleteFile(name.value().c_str())) {
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// There is an error, but we share delete access so let's see if there is a
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// file to open. Note that this code assumes that we have a handle to the
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// file at all times (even now), so nobody can have a handle that prevents
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// us from opening the file again (unless it was deleted).
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DWORD sharing = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
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DWORD access = SYNCHRONIZE;
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base::win::ScopedHandle file(CreateFile(
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name.value().c_str(), access, sharing, NULL, OPEN_EXISTING, 0, NULL));
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if (file.IsValid())
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return false;
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// Most likely there is no file to open... and that's what we wanted.
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}
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return true;
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}
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} // namespace disk_cache
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