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

Issue 1549113002: Switch to standard integer types in content/browser/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: rebase Created 4 years, 12 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 <stdint.h>
9
8 #include <map> 10 #include <map>
9 #include <set> 11 #include <set>
10 #include <utility> 12 #include <utility>
11 #include "base/basictypes.h"
12 #include "base/files/file_path.h" 13 #include "base/files/file_path.h"
14 #include "base/macros.h"
13 #include "base/memory/weak_ptr.h" 15 #include "base/memory/weak_ptr.h"
14 #include "content/common/content_export.h" 16 #include "content/common/content_export.h"
15 #include "storage/browser/blob/shareable_file_reference.h" 17 #include "storage/browser/blob/shareable_file_reference.h"
16 18
17 namespace content { 19 namespace content {
18 20
19 class IndexedDBBackingStore; 21 class IndexedDBBackingStore;
20 22
21 class CONTENT_EXPORT IndexedDBActiveBlobRegistry { 23 class CONTENT_EXPORT IndexedDBActiveBlobRegistry {
22 public: 24 public:
23 explicit IndexedDBActiveBlobRegistry(IndexedDBBackingStore* backing_store); 25 explicit IndexedDBActiveBlobRegistry(IndexedDBBackingStore* backing_store);
24 ~IndexedDBActiveBlobRegistry(); 26 ~IndexedDBActiveBlobRegistry();
25 27
26 // Most methods of this class, and the closure returned by 28 // Most methods of this class, and the closure returned by
27 // GetAddBlobRefCallback, should only be called on the backing_store's task 29 // GetAddBlobRefCallback, should only be called on the backing_store's task
28 // runner. The exception is the closure returned by GetFinalReleaseCallback, 30 // runner. The exception is the closure returned by GetFinalReleaseCallback,
29 // which just calls ReleaseBlobRefThreadSafe. 31 // which just calls ReleaseBlobRefThreadSafe.
30 32
31 // Use DatabaseMetaDataKey::AllBlobsKey for "the whole database". 33 // Use DatabaseMetaDataKey::AllBlobsKey for "the whole database".
32 bool MarkDeletedCheckIfUsed(int64 database_id, int64 blob_key); 34 bool MarkDeletedCheckIfUsed(int64_t database_id, int64_t blob_key);
33 35
34 storage::ShareableFileReference::FinalReleaseCallback GetFinalReleaseCallback( 36 storage::ShareableFileReference::FinalReleaseCallback GetFinalReleaseCallback(
35 int64 database_id, 37 int64_t database_id,
36 int64 blob_key); 38 int64_t blob_key);
37 // This closure holds a raw pointer to the IndexedDBActiveBlobRegistry, 39 // This closure holds a raw pointer to the IndexedDBActiveBlobRegistry,
38 // and may not be called after it is deleted. 40 // and may not be called after it is deleted.
39 base::Closure GetAddBlobRefCallback(int64 database_id, int64 blob_key); 41 base::Closure GetAddBlobRefCallback(int64_t database_id, int64_t blob_key);
40 // Call this to force the registry to drop its use counts, permitting the 42 // Call this to force the registry to drop its use counts, permitting the
41 // factory to drop any blob-related refcount for the backing store. 43 // factory to drop any blob-related refcount for the backing store.
42 // This will also turn any outstanding callbacks into no-ops. 44 // This will also turn any outstanding callbacks into no-ops.
43 void ForceShutdown(); 45 void ForceShutdown();
44 46
45 private: 47 private:
46 // Maps blob_key -> IsDeleted; if the record's absent, it's not in active use 48 // Maps blob_key -> IsDeleted; if the record's absent, it's not in active use
47 // and we don't care if it's deleted. 49 // and we don't care if it's deleted.
48 typedef std::map<int64, bool> SingleDBMap; 50 typedef std::map<int64_t, bool> SingleDBMap;
49 // Maps DB ID -> SingleDBMap 51 // Maps DB ID -> SingleDBMap
50 typedef std::map<int64, SingleDBMap> AllDBsMap; 52 typedef std::map<int64_t, SingleDBMap> AllDBsMap;
51 typedef std::set<int64> DeletedDBSet; 53 typedef std::set<int64_t> DeletedDBSet;
52 54
53 void AddBlobRef(int64 database_id, int64 blob_key); 55 void AddBlobRef(int64_t database_id, int64_t blob_key);
54 void ReleaseBlobRef(int64 database_id, int64 blob_key); 56 void ReleaseBlobRef(int64_t database_id, int64_t blob_key);
55 static void ReleaseBlobRefThreadSafe( 57 static void ReleaseBlobRefThreadSafe(
56 scoped_refptr<base::TaskRunner> task_runner, 58 scoped_refptr<base::TaskRunner> task_runner,
57 base::WeakPtr<IndexedDBActiveBlobRegistry> weak_ptr, 59 base::WeakPtr<IndexedDBActiveBlobRegistry> weak_ptr,
58 int64 database_id, 60 int64_t database_id,
59 int64 blob_key, 61 int64_t blob_key,
60 const base::FilePath& unused); 62 const base::FilePath& unused);
61 63
62 AllDBsMap use_tracker_; 64 AllDBsMap use_tracker_;
63 DeletedDBSet deleted_dbs_; 65 DeletedDBSet deleted_dbs_;
64 // As long as we've got blobs registered in use_tracker_, 66 // As long as we've got blobs registered in use_tracker_,
65 // backing_store_->factory() will keep backing_store_ alive for us. And 67 // backing_store_->factory() will keep backing_store_ alive for us. And
66 // backing_store_ owns us, so we'll stay alive as long as we're needed. 68 // backing_store_ owns us, so we'll stay alive as long as we're needed.
67 IndexedDBBackingStore* backing_store_; 69 IndexedDBBackingStore* backing_store_;
68 base::WeakPtrFactory<IndexedDBActiveBlobRegistry> weak_factory_; 70 base::WeakPtrFactory<IndexedDBActiveBlobRegistry> weak_factory_;
69 71
70 DISALLOW_COPY_AND_ASSIGN(IndexedDBActiveBlobRegistry); 72 DISALLOW_COPY_AND_ASSIGN(IndexedDBActiveBlobRegistry);
71 }; 73 };
72 74
73 } // namespace content 75 } // namespace content
74 76
75 #endif // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_ACTIVE_BLOB_REGISTRY_H_ 77 #endif // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_ACTIVE_BLOB_REGISTRY_H_
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