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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> |
| (...skipping 13 matching lines...) Expand all Loading... |
| 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); |
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| 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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