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Side by Side Diff: content/browser/indexed_db/indexed_db_active_blob_registry.h

Issue 442383002: Move storage-related files from webkit/ to new top-level directory storage/ (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: . Created 6 years, 4 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 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 CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_ACTIVE_BLOB_REGISTRY_H_ 5 #ifndef CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_ACTIVE_BLOB_REGISTRY_H_
6 #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_ACTIVE_BLOB_REGISTRY_H_ 6 #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_ACTIVE_BLOB_REGISTRY_H_
7 7
8 #include <map> 8 #include <map>
9 #include <set> 9 #include <set>
10 #include <utility> 10 #include <utility>
11 #include "base/basictypes.h" 11 #include "base/basictypes.h"
12 #include "base/files/file_path.h" 12 #include "base/files/file_path.h"
13 #include "base/memory/weak_ptr.h" 13 #include "base/memory/weak_ptr.h"
14 #include "content/common/content_export.h" 14 #include "content/common/content_export.h"
15 #include "webkit/common/blob/shareable_file_reference.h" 15 #include "storage/common/blob/shareable_file_reference.h"
16 16
17 namespace content { 17 namespace content {
18 18
19 class IndexedDBBackingStore; 19 class IndexedDBBackingStore;
20 20
21 class CONTENT_EXPORT IndexedDBActiveBlobRegistry { 21 class CONTENT_EXPORT IndexedDBActiveBlobRegistry {
22 public: 22 public:
23 explicit IndexedDBActiveBlobRegistry(IndexedDBBackingStore* backing_store); 23 explicit IndexedDBActiveBlobRegistry(IndexedDBBackingStore* backing_store);
24 ~IndexedDBActiveBlobRegistry(); 24 ~IndexedDBActiveBlobRegistry();
25 25
26 // Most methods of this class, and the closure returned by 26 // Most methods of this class, and the closure returned by
27 // GetAddBlobRefCallback, should only be called on the backing_store's task 27 // GetAddBlobRefCallback, should only be called on the backing_store's task
28 // runner. The exception is the closure returned by GetFinalReleaseCallback, 28 // runner. The exception is the closure returned by GetFinalReleaseCallback,
29 // which just calls ReleaseBlobRefThreadSafe. 29 // which just calls ReleaseBlobRefThreadSafe.
30 30
31 // Use DatabaseMetaDataKey::AllBlobsKey for "the whole database". 31 // Use DatabaseMetaDataKey::AllBlobsKey for "the whole database".
32 bool MarkDeletedCheckIfUsed(int64 database_id, int64 blob_key); 32 bool MarkDeletedCheckIfUsed(int64 database_id, int64 blob_key);
33 33
34 webkit_blob::ShareableFileReference::FinalReleaseCallback 34 storage::ShareableFileReference::FinalReleaseCallback GetFinalReleaseCallback(
35 GetFinalReleaseCallback(int64 database_id, int64 blob_key); 35 int64 database_id,
36 int64 blob_key);
36 // This closure holds a raw pointer to the IndexedDBActiveBlobRegistry, 37 // This closure holds a raw pointer to the IndexedDBActiveBlobRegistry,
37 // and may not be called after it is deleted. 38 // and may not be called after it is deleted.
38 base::Closure GetAddBlobRefCallback(int64 database_id, int64 blob_key); 39 base::Closure GetAddBlobRefCallback(int64 database_id, int64 blob_key);
39 // Call this to force the registry to drop its use counts, permitting the 40 // Call this to force the registry to drop its use counts, permitting the
40 // factory to drop any blob-related refcount for the backing store. 41 // factory to drop any blob-related refcount for the backing store.
41 // This will also turn any outstanding callbacks into no-ops. 42 // This will also turn any outstanding callbacks into no-ops.
42 void ForceShutdown(); 43 void ForceShutdown();
43 44
44 private: 45 private:
45 void AddBlobRef(int64 database_id, int64 blob_key); 46 void AddBlobRef(int64 database_id, int64 blob_key);
(...skipping 19 matching lines...) Expand all
65 // backing_store_ owns us, so we'll stay alive as long as we're needed. 66 // backing_store_ owns us, so we'll stay alive as long as we're needed.
66 IndexedDBBackingStore* backing_store_; 67 IndexedDBBackingStore* backing_store_;
67 base::WeakPtrFactory<IndexedDBActiveBlobRegistry> weak_factory_; 68 base::WeakPtrFactory<IndexedDBActiveBlobRegistry> weak_factory_;
68 69
69 DISALLOW_COPY_AND_ASSIGN(IndexedDBActiveBlobRegistry); 70 DISALLOW_COPY_AND_ASSIGN(IndexedDBActiveBlobRegistry);
70 }; 71 };
71 72
72 } // namespace content 73 } // namespace content
73 74
74 #endif // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_ACTIVE_BLOB_REGISTRY_H_ 75 #endif // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_ACTIVE_BLOB_REGISTRY_H_
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