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Side by Side Diff: net/disk_cache/simple/simple_backend_impl.h

Issue 266243004: Clang format slam. Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 7 months ago
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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_ 5 #ifndef NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_
6 #define NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_ 6 #define NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_
7 7
8 #include <string> 8 #include <string>
9 #include <utility> 9 #include <utility>
10 #include <vector> 10 #include <vector>
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25 25
26 namespace base { 26 namespace base {
27 class SingleThreadTaskRunner; 27 class SingleThreadTaskRunner;
28 class TaskRunner; 28 class TaskRunner;
29 } 29 }
30 30
31 namespace disk_cache { 31 namespace disk_cache {
32 32
33 // SimpleBackendImpl is a new cache backend that stores entries in individual 33 // SimpleBackendImpl is a new cache backend that stores entries in individual
34 // files. 34 // files.
35 // See http://www.chromium.org/developers/design-documents/network-stack/disk-ca che/very-simple-backend 35 // See
36 // http://www.chromium.org/developers/design-documents/network-stack/disk-cache/ very-simple-backend
36 // 37 //
37 // The non-static functions below must be called on the IO thread unless 38 // The non-static functions below must be called on the IO thread unless
38 // otherwise stated. 39 // otherwise stated.
39 40
40 class SimpleEntryImpl; 41 class SimpleEntryImpl;
41 class SimpleIndex; 42 class SimpleIndex;
42 43
43 class NET_EXPORT_PRIVATE SimpleBackendImpl : public Backend, 44 class NET_EXPORT_PRIVATE SimpleBackendImpl
44 public SimpleIndexDelegate, 45 : public Backend,
45 public base::SupportsWeakPtr<SimpleBackendImpl> { 46 public SimpleIndexDelegate,
47 public base::SupportsWeakPtr<SimpleBackendImpl> {
46 public: 48 public:
47 SimpleBackendImpl(const base::FilePath& path, int max_bytes, 49 SimpleBackendImpl(const base::FilePath& path,
50 int max_bytes,
48 net::CacheType cache_type, 51 net::CacheType cache_type,
49 base::SingleThreadTaskRunner* cache_thread, 52 base::SingleThreadTaskRunner* cache_thread,
50 net::NetLog* net_log); 53 net::NetLog* net_log);
51 54
52 virtual ~SimpleBackendImpl(); 55 virtual ~SimpleBackendImpl();
53 56
54 net::CacheType cache_type() const { return cache_type_; } 57 net::CacheType cache_type() const { return cache_type_; }
55 SimpleIndex* index() { return index_.get(); } 58 SimpleIndex* index() { return index_.get(); }
56 59
57 base::TaskRunner* worker_pool() { return worker_pool_.get(); } 60 base::TaskRunner* worker_pool() { return worker_pool_.get(); }
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80 // doom completed. 83 // doom completed.
81 void OnDoomComplete(uint64 entry_hash); 84 void OnDoomComplete(uint64 entry_hash);
82 85
83 // SimpleIndexDelegate: 86 // SimpleIndexDelegate:
84 virtual void DoomEntries(std::vector<uint64>* entry_hashes, 87 virtual void DoomEntries(std::vector<uint64>* entry_hashes,
85 const CompletionCallback& callback) OVERRIDE; 88 const CompletionCallback& callback) OVERRIDE;
86 89
87 // Backend: 90 // Backend:
88 virtual net::CacheType GetCacheType() const OVERRIDE; 91 virtual net::CacheType GetCacheType() const OVERRIDE;
89 virtual int32 GetEntryCount() const OVERRIDE; 92 virtual int32 GetEntryCount() const OVERRIDE;
90 virtual int OpenEntry(const std::string& key, Entry** entry, 93 virtual int OpenEntry(const std::string& key,
94 Entry** entry,
91 const CompletionCallback& callback) OVERRIDE; 95 const CompletionCallback& callback) OVERRIDE;
92 virtual int CreateEntry(const std::string& key, Entry** entry, 96 virtual int CreateEntry(const std::string& key,
97 Entry** entry,
93 const CompletionCallback& callback) OVERRIDE; 98 const CompletionCallback& callback) OVERRIDE;
94 virtual int DoomEntry(const std::string& key, 99 virtual int DoomEntry(const std::string& key,
95 const CompletionCallback& callback) OVERRIDE; 100 const CompletionCallback& callback) OVERRIDE;
96 virtual int DoomAllEntries(const CompletionCallback& callback) OVERRIDE; 101 virtual int DoomAllEntries(const CompletionCallback& callback) OVERRIDE;
97 virtual int DoomEntriesBetween(base::Time initial_time, 102 virtual int DoomEntriesBetween(base::Time initial_time,
98 base::Time end_time, 103 base::Time end_time,
99 const CompletionCallback& callback) OVERRIDE; 104 const CompletionCallback& callback) OVERRIDE;
100 virtual int DoomEntriesSince(base::Time initial_time, 105 virtual int DoomEntriesSince(base::Time initial_time,
101 const CompletionCallback& callback) OVERRIDE; 106 const CompletionCallback& callback) OVERRIDE;
102 virtual int OpenNextEntry(void** iter, Entry** next_entry, 107 virtual int OpenNextEntry(void** iter,
108 Entry** next_entry,
103 const CompletionCallback& callback) OVERRIDE; 109 const CompletionCallback& callback) OVERRIDE;
104 virtual void EndEnumeration(void** iter) OVERRIDE; 110 virtual void EndEnumeration(void** iter) OVERRIDE;
105 virtual void GetStats( 111 virtual void GetStats(
106 std::vector<std::pair<std::string, std::string> >* stats) OVERRIDE; 112 std::vector<std::pair<std::string, std::string> >* stats) OVERRIDE;
107 virtual void OnExternalCacheHit(const std::string& key) OVERRIDE; 113 virtual void OnExternalCacheHit(const std::string& key) OVERRIDE;
108 114
109 private: 115 private:
110 typedef base::hash_map<uint64, base::WeakPtr<SimpleEntryImpl> > EntryMap; 116 typedef base::hash_map<uint64, base::WeakPtr<SimpleEntryImpl> > EntryMap;
111 117
112 typedef base::Callback<void(base::Time mtime, uint64 max_size, int result)> 118 typedef base::Callback<void(base::Time mtime, uint64 max_size, int result)>
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145 // corresponding to |hash| in the map of active entries, opens it. Otherwise, 151 // corresponding to |hash| in the map of active entries, opens it. Otherwise,
146 // a new empty Entry will be created, opened and filled with information from 152 // a new empty Entry will be created, opened and filled with information from
147 // the disk. 153 // the disk.
148 int OpenEntryFromHash(uint64 entry_hash, 154 int OpenEntryFromHash(uint64 entry_hash,
149 Entry** entry, 155 Entry** entry,
150 const CompletionCallback& callback); 156 const CompletionCallback& callback);
151 157
152 // Doom the entry corresponding to |entry_hash|, if it's active or currently 158 // Doom the entry corresponding to |entry_hash|, if it's active or currently
153 // pending doom. This function does not block if there is an active entry, 159 // pending doom. This function does not block if there is an active entry,
154 // which is very important to prevent races in DoomEntries() above. 160 // which is very important to prevent races in DoomEntries() above.
155 int DoomEntryFromHash(uint64 entry_hash, const CompletionCallback & callback); 161 int DoomEntryFromHash(uint64 entry_hash, const CompletionCallback& callback);
156 162
157 // Called when the index is initilized to find the next entry in the iterator 163 // Called when the index is initilized to find the next entry in the iterator
158 // |iter|. If there are no more hashes in the iterator list, net::ERR_FAILED 164 // |iter|. If there are no more hashes in the iterator list, net::ERR_FAILED
159 // is returned. Otherwise, calls OpenEntryFromHash. 165 // is returned. Otherwise, calls OpenEntryFromHash.
160 void GetNextEntryInIterator(void** iter, 166 void GetNextEntryInIterator(void** iter,
161 Entry** next_entry, 167 Entry** next_entry,
162 const CompletionCallback& callback, 168 const CompletionCallback& callback,
163 int error_code); 169 int error_code);
164 170
165 // Called when we tried to open an entry with hash alone. When a blank entry 171 // Called when we tried to open an entry with hash alone. When a blank entry
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210 // is complete. The base::Closure map target is used to store deferred 216 // is complete. The base::Closure map target is used to store deferred
211 // operations to be run at the completion of the Doom. 217 // operations to be run at the completion of the Doom.
212 base::hash_map<uint64, std::vector<base::Closure> > entries_pending_doom_; 218 base::hash_map<uint64, std::vector<base::Closure> > entries_pending_doom_;
213 219
214 net::NetLog* const net_log_; 220 net::NetLog* const net_log_;
215 }; 221 };
216 222
217 } // namespace disk_cache 223 } // namespace disk_cache
218 224
219 #endif // NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_ 225 #endif // NET_DISK_CACHE_SIMPLE_SIMPLE_BACKEND_IMPL_H_
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