| Index: net/disk_cache/blockfile/entry_impl_v3.h
|
| diff --git a/net/disk_cache/blockfile/entry_impl_v3.h b/net/disk_cache/blockfile/entry_impl_v3.h
|
| deleted file mode 100644
|
| index c693c2a79d19e88599b2a5ac0be77ee42051eeb9..0000000000000000000000000000000000000000
|
| --- a/net/disk_cache/blockfile/entry_impl_v3.h
|
| +++ /dev/null
|
| @@ -1,220 +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.
|
| -
|
| -#ifndef NET_DISK_CACHE_BLOCKFILE_ENTRY_IMPL_V3_H_
|
| -#define NET_DISK_CACHE_BLOCKFILE_ENTRY_IMPL_V3_H_
|
| -
|
| -#include <string>
|
| -
|
| -#include "base/memory/scoped_ptr.h"
|
| -#include "net/base/net_log.h"
|
| -#include "net/disk_cache/blockfile/disk_format_v3.h"
|
| -#include "net/disk_cache/blockfile/storage_block.h"
|
| -#include "net/disk_cache/disk_cache.h"
|
| -
|
| -namespace disk_cache {
|
| -
|
| -class BackendImplV3;
|
| -class SparseControlV3;
|
| -
|
| -// This class implements the Entry interface. An object of this
|
| -// class represents a single entry on the cache.
|
| -class NET_EXPORT_PRIVATE EntryImplV3
|
| - : public Entry,
|
| - public base::RefCounted<EntryImplV3> {
|
| - friend class base::RefCounted<EntryImplV3>;
|
| - // friend class SparseControlV3;
|
| - public:
|
| - enum Operation {
|
| - kRead,
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| - kWrite,
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| - kSparseRead,
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| - kSparseWrite,
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| - kAsyncIO,
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| - kReadAsync1,
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| - kWriteAsync1
|
| - };
|
| -
|
| - EntryImplV3(BackendImplV3* backend, Addr address, bool read_only);
|
| -
|
| - // Performs the initialization of a EntryImplV3 that will be added to the
|
| - // cache.
|
| - bool CreateEntry(Addr node_address, const std::string& key, uint32 hash);
|
| -
|
| - uint32 GetHash();
|
| -
|
| - uint32 GetHash() const;
|
| - Addr GetAddress() const;
|
| - int GetReuseCounter() const;
|
| - void SetReuseCounter(int count);
|
| - int GetRefetchCounter() const;
|
| - void SetRefetchCounter(int count);
|
| -
|
| - // Returns true if this entry matches the lookup arguments.
|
| - bool IsSameEntry(const std::string& key, uint32 hash);
|
| -
|
| - // Permamently destroys this entry.
|
| - void InternalDoom();
|
| -
|
| - // Returns false if the entry is clearly invalid.
|
| - bool SanityCheck();
|
| - bool DataSanityCheck();
|
| -
|
| - // Attempts to make this entry reachable though the key.
|
| - void FixForDelete();
|
| -
|
| - // Set the access times for this entry. This method provides support for
|
| - // the upgrade tool.
|
| - void SetTimes(base::Time last_used, base::Time last_modified);
|
| -
|
| - // Logs a begin event and enables logging for the EntryImplV3. Will also cause
|
| - // an end event to be logged on destruction. The EntryImplV3 must have its key
|
| - // initialized before this is called. |created| is true if the Entry was
|
| - // created rather than opened.
|
| - void BeginLogging(net::NetLog* net_log, bool created);
|
| -
|
| - const net::BoundNetLog& net_log() const;
|
| -
|
| - // Entry interface.
|
| - void Doom() override;
|
| - void Close() override;
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| - std::string GetKey() const override;
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| - base::Time GetLastUsed() const override;
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| - base::Time GetLastModified() const override;
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| - int32 GetDataSize(int index) const override;
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| - int ReadData(int index,
|
| - int offset,
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| - IOBuffer* buf,
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| - int buf_len,
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| - const CompletionCallback& callback) override;
|
| - int WriteData(int index,
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| - int offset,
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| - IOBuffer* buf,
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| - int buf_len,
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| - const CompletionCallback& callback,
|
| - bool truncate) override;
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| - int ReadSparseData(int64 offset,
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| - IOBuffer* buf,
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| - int buf_len,
|
| - const CompletionCallback& callback) override;
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| - int WriteSparseData(int64 offset,
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| - IOBuffer* buf,
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| - int buf_len,
|
| - const CompletionCallback& callback) override;
|
| - int GetAvailableRange(int64 offset,
|
| - int len,
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| - int64* start,
|
| - const CompletionCallback& callback) override;
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| - bool CouldBeSparse() const override;
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| - void CancelSparseIO() override;
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| - int ReadyForSparseIO(const CompletionCallback& callback) override;
|
| -
|
| - private:
|
| - enum {
|
| - kNumStreams = 3
|
| - };
|
| - class UserBuffer;
|
| -
|
| - ~EntryImplV3() override;
|
| -
|
| - // Do all the work for ReadDataImpl and WriteDataImpl. Implemented as
|
| - // separate functions to make logging of results simpler.
|
| - int InternalReadData(int index, int offset, IOBuffer* buf,
|
| - int buf_len, const CompletionCallback& callback);
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| - int InternalWriteData(int index, int offset, IOBuffer* buf, int buf_len,
|
| - const CompletionCallback& callback, bool truncate);
|
| -
|
| - // Initializes the storage for an internal or external data block.
|
| - bool CreateDataBlock(int index, int size);
|
| -
|
| - // Initializes the storage for an internal or external generic block.
|
| - bool CreateBlock(int size, Addr* address);
|
| -
|
| - // Deletes the data pointed by address, maybe backed by files_[index].
|
| - // Note that most likely the caller should delete (and store) the reference to
|
| - // |address| *before* calling this method because we don't want to have an
|
| - // entry using an address that is already free.
|
| - void DeleteData(Addr address, int index);
|
| -
|
| - // Updates ranking information.
|
| - void UpdateRank(bool modified);
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| -
|
| - // Deletes this entry from disk. If |everything| is false, only the user data
|
| - // will be removed, leaving the key and control data intact.
|
| - void DeleteEntryData(bool everything);
|
| -
|
| - // Prepares the target file or buffer for a write of buf_len bytes at the
|
| - // given offset.
|
| - bool PrepareTarget(int index, int offset, int buf_len, bool truncate);
|
| -
|
| - // Adjusts the internal buffer and file handle for a write that truncates this
|
| - // stream.
|
| - bool HandleTruncation(int index, int offset, int buf_len);
|
| -
|
| - // Copies data from disk to the internal buffer.
|
| - bool CopyToLocalBuffer(int index);
|
| -
|
| - // Reads from a block data file to this object's memory buffer.
|
| - bool MoveToLocalBuffer(int index);
|
| -
|
| - // Loads the external file to this object's memory buffer.
|
| - bool ImportSeparateFile(int index, int new_size);
|
| -
|
| - // Makes sure that the internal buffer can handle the a write of |buf_len|
|
| - // bytes to |offset|.
|
| - bool PrepareBuffer(int index, int offset, int buf_len);
|
| -
|
| - // Flushes the in-memory data to the backing storage. The data destination
|
| - // is determined based on the current data length and |min_len|.
|
| - bool Flush(int index, int min_len);
|
| -
|
| - // Updates the size of a given data stream.
|
| - void UpdateSize(int index, int old_size, int new_size);
|
| -
|
| - // Initializes the sparse control object. Returns a net error code.
|
| - int InitSparseData();
|
| -
|
| - // Adds the provided |flags| to the current EntryFlags for this entry.
|
| - void SetEntryFlags(uint32 flags);
|
| -
|
| - // Returns the current EntryFlags for this entry.
|
| - uint32 GetEntryFlags();
|
| -
|
| - // Gets the data stored at the given index. If the information is in memory,
|
| - // a buffer will be allocated and the data will be copied to it (the caller
|
| - // can find out the size of the buffer before making this call). Otherwise,
|
| - // the cache address of the data will be returned, and that address will be
|
| - // removed from the regular book keeping of this entry so the caller is
|
| - // responsible for deleting the block (or file) from the backing store at some
|
| - // point; there is no need to report any storage-size change, only to do the
|
| - // actual cleanup.
|
| - void GetData(int index, char** buffer, Addr* address);
|
| -
|
| - // Generates a histogram for the time spent working on this operation.
|
| - void ReportIOTime(Operation op, const base::TimeTicks& start);
|
| -
|
| - // Logs this entry to the internal trace buffer.
|
| - void Log(const char* msg);
|
| -
|
| - scoped_ptr<EntryRecord> entry_; // Basic record for this entry.
|
| - scoped_ptr<ShortEntryRecord> short_entry_; // Valid for evicted entries.
|
| - base::WeakPtr<BackendImplV3> backend_; // Back pointer to the cache.
|
| - scoped_ptr<UserBuffer> user_buffers_[kNumStreams]; // Stores user data.
|
| - mutable std::string key_; // Copy of the key.
|
| - Addr address_;
|
| - int unreported_size_[kNumStreams]; // Bytes not reported yet to the backend.
|
| - bool doomed_; // True if this entry was removed from the cache.
|
| - bool read_only_;
|
| - bool dirty_; // True if there is something to write.
|
| - bool modified_;
|
| - // scoped_ptr<SparseControlV3> sparse_; // Support for sparse entries.
|
| -
|
| - net::BoundNetLog net_log_;
|
| -
|
| - DISALLOW_COPY_AND_ASSIGN(EntryImplV3);
|
| -};
|
| -
|
| -} // namespace disk_cache
|
| -
|
| -#endif // NET_DISK_CACHE_BLOCKFILE_ENTRY_IMPL_V3_H_
|
|
|