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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 WEBKIT_DATABASE_DATABASE_CONNECTIONS_H_ | 5 #ifndef WEBKIT_DATABASE_DATABASE_CONNECTIONS_H_ |
6 #define WEBKIT_DATABASE_DATABASE_CONNECTIONS_H_ | 6 #define WEBKIT_DATABASE_DATABASE_CONNECTIONS_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
12 #include "base/string16.h" | 12 #include "base/string16.h" |
13 #include "base/synchronization/lock.h" | 13 #include "base/synchronization/lock.h" |
| 14 #include "webkit/storage/webkit_storage_export.h" |
14 | 15 |
15 namespace base { | 16 namespace base { |
16 class MessageLoopProxy; | 17 class MessageLoopProxy; |
17 } | 18 } |
18 | 19 |
19 namespace webkit_database { | 20 namespace webkit_database { |
20 | 21 |
21 class DatabaseConnections { | 22 class WEBKIT_STORAGE_EXPORT DatabaseConnections { |
22 public: | 23 public: |
23 DatabaseConnections(); | 24 DatabaseConnections(); |
24 ~DatabaseConnections(); | 25 ~DatabaseConnections(); |
25 | 26 |
26 bool IsEmpty() const; | 27 bool IsEmpty() const; |
27 bool IsDatabaseOpened(const string16& origin_identifier, | 28 bool IsDatabaseOpened(const string16& origin_identifier, |
28 const string16& database_name) const; | 29 const string16& database_name) const; |
29 bool IsOriginUsed(const string16& origin_identifier) const; | 30 bool IsOriginUsed(const string16& origin_identifier) const; |
30 | 31 |
31 // Returns true if this is the first connection. | 32 // Returns true if this is the first connection. |
(...skipping 28 matching lines...) Expand all Loading... |
60 | 61 |
61 // Returns true if the last connection was removed. | 62 // Returns true if the last connection was removed. |
62 bool RemoveConnectionsHelper(const string16& origin_identifier, | 63 bool RemoveConnectionsHelper(const string16& origin_identifier, |
63 const string16& database_name, | 64 const string16& database_name, |
64 int num_connections); | 65 int num_connections); |
65 }; | 66 }; |
66 | 67 |
67 // A wrapper class that provides thread-safety and the | 68 // A wrapper class that provides thread-safety and the |
68 // ability to wait until all connections have closed. | 69 // ability to wait until all connections have closed. |
69 // Intended for use in renderer processes. | 70 // Intended for use in renderer processes. |
70 class DatabaseConnectionsWrapper | 71 class WEBKIT_STORAGE_EXPORT DatabaseConnectionsWrapper |
71 : public base::RefCountedThreadSafe<DatabaseConnectionsWrapper> { | 72 : public base::RefCountedThreadSafe<DatabaseConnectionsWrapper> { |
72 public: | 73 public: |
73 DatabaseConnectionsWrapper(); | 74 DatabaseConnectionsWrapper(); |
74 | 75 |
75 // The Wait and Has methods should only be called on the | 76 // The Wait and Has methods should only be called on the |
76 // main thread (the thread on which the wrapper is constructed). | 77 // main thread (the thread on which the wrapper is constructed). |
77 void WaitForAllDatabasesToClose(); | 78 void WaitForAllDatabasesToClose(); |
78 bool HasOpenConnections(); | 79 bool HasOpenConnections(); |
79 | 80 |
80 // Add and Remove may be called on any thread. | 81 // Add and Remove may be called on any thread. |
81 void AddOpenConnection(const string16& origin_identifier, | 82 void AddOpenConnection(const string16& origin_identifier, |
82 const string16& database_name); | 83 const string16& database_name); |
83 void RemoveOpenConnection(const string16& origin_identifier, | 84 void RemoveOpenConnection(const string16& origin_identifier, |
84 const string16& database_name); | 85 const string16& database_name); |
85 private: | 86 private: |
86 ~DatabaseConnectionsWrapper(); | 87 ~DatabaseConnectionsWrapper(); |
87 friend class base::RefCountedThreadSafe<DatabaseConnectionsWrapper>; | 88 friend class base::RefCountedThreadSafe<DatabaseConnectionsWrapper>; |
88 | 89 |
89 bool waiting_for_dbs_to_close_; | 90 bool waiting_for_dbs_to_close_; |
90 base::Lock open_connections_lock_; | 91 base::Lock open_connections_lock_; |
91 DatabaseConnections open_connections_; | 92 DatabaseConnections open_connections_; |
92 scoped_refptr<base::MessageLoopProxy> main_thread_; | 93 scoped_refptr<base::MessageLoopProxy> main_thread_; |
93 }; | 94 }; |
94 | 95 |
95 } // namespace webkit_database | 96 } // namespace webkit_database |
96 | 97 |
97 #endif // WEBKIT_DATABASE_DATABASE_CONNECTIONS_H_ | 98 #endif // WEBKIT_DATABASE_DATABASE_CONNECTIONS_H_ |
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