Index: net/disk_cache/blockfile/mapped_file.h |
diff --git a/net/disk_cache/blockfile/mapped_file.h b/net/disk_cache/blockfile/mapped_file.h |
deleted file mode 100644 |
index 7634cb70f46dfe7aa0cc0c7c754f47ee3f15c93b..0000000000000000000000000000000000000000 |
--- a/net/disk_cache/blockfile/mapped_file.h |
+++ /dev/null |
@@ -1,82 +0,0 @@ |
-// Copyright (c) 2012 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. |
- |
-// See net/disk_cache/disk_cache.h for the public interface of the cache. |
- |
-#ifndef NET_DISK_CACHE_BLOCKFILE_MAPPED_FILE_H_ |
-#define NET_DISK_CACHE_BLOCKFILE_MAPPED_FILE_H_ |
- |
-#include "net/base/net_export.h" |
-#include "net/disk_cache/blockfile/file.h" |
-#include "net/disk_cache/blockfile/file_block.h" |
- |
-namespace base { |
-class FilePath; |
-} |
- |
-namespace disk_cache { |
- |
-// This class implements a memory mapped file used to access block-files. The |
-// idea is that the header and bitmap will be memory mapped all the time, and |
-// the actual data for the blocks will be access asynchronously (most of the |
-// time). |
-class NET_EXPORT_PRIVATE MappedFile : public File { |
- public: |
- MappedFile() : File(true), init_(false) {} |
- |
- // Performs object initialization. name is the file to use, and size is the |
- // amount of data to memory map from the file. If size is 0, the whole file |
- // will be mapped in memory. |
- void* Init(const base::FilePath& name, size_t size); |
- |
- void* buffer() const { |
- return buffer_; |
- } |
- |
- // Loads or stores a given block from the backing file (synchronously). |
- bool Load(const FileBlock* block); |
- bool Store(const FileBlock* block); |
- |
- // Asynchronous versions of Load/Store, following the semantics of File::Read |
- // and File::Write. |
- bool Load(const FileBlock* block, FileIOCallback* callback, bool* completed); |
- bool Store(const FileBlock* block, FileIOCallback* callback, bool* completed); |
- |
- // Flush the memory-mapped section to disk (synchronously). |
- void Flush(); |
- |
- // Heats up the file system cache and make sure the file is fully |
- // readable (synchronously). |
- bool Preload(); |
- |
- private: |
- ~MappedFile() override; |
- |
- bool init_; |
-#if defined(OS_WIN) |
- HANDLE section_; |
-#endif |
- void* buffer_; // Address of the memory mapped buffer. |
- size_t view_size_; // Size of the memory pointed by buffer_. |
-#if defined(POSIX_AVOID_MMAP) |
- void* snapshot_; // Copy of the buffer taken when it was last flushed. |
-#endif |
- |
- DISALLOW_COPY_AND_ASSIGN(MappedFile); |
-}; |
- |
-// Helper class for calling Flush() on exit from the current scope. |
-class ScopedFlush { |
- public: |
- explicit ScopedFlush(MappedFile* file) : file_(file) {} |
- ~ScopedFlush() { |
- file_->Flush(); |
- } |
- private: |
- MappedFile* file_; |
-}; |
- |
-} // namespace disk_cache |
- |
-#endif // NET_DISK_CACHE_BLOCKFILE_MAPPED_FILE_H_ |