32 // CActiveApDb::NewL |
32 // CActiveApDb::NewL |
33 // --------------------------------------------------------- |
33 // --------------------------------------------------------- |
34 // |
34 // |
35 EXPORT_C CActiveApDb* CActiveApDb::NewL( TCommDbDatabaseType /*aType*/ ) |
35 EXPORT_C CActiveApDb* CActiveApDb::NewL( TCommDbDatabaseType /*aType*/ ) |
36 { |
36 { |
37 CLOG( ( EActiveDb, 0, _L( "-> CActiveApDb::NewL" ) ) ); |
37 return NULL; |
38 |
|
39 CActiveApDb* db = new ( ELeave ) CActiveApDb; |
|
40 CleanupStack::PushL( db ); |
|
41 db->ConstructL(); |
|
42 CleanupStack::Pop( db ); // db |
|
43 |
|
44 CLOG( ( EActiveDb, 1, _L( "<- CActiveApDb::NewL" ) ) ); |
|
45 return db; |
|
46 } |
38 } |
47 |
39 |
48 // --------------------------------------------------------- |
40 // --------------------------------------------------------- |
49 // CActiveApDb::~CActiveApDb |
41 // CActiveApDb::~CActiveApDb |
50 // --------------------------------------------------------- |
42 // --------------------------------------------------------- |
51 // |
43 // |
52 EXPORT_C CActiveApDb::~CActiveApDb() |
44 EXPORT_C CActiveApDb::~CActiveApDb() |
53 { |
45 { |
54 CLOG( ( EActiveDb, 0, _L( "-> CActiveApDb::~CActiveApDb" ) ) ); |
|
55 |
|
56 delete iDbNotifier; |
|
57 delete iObservers; |
|
58 delete iDb; |
|
59 |
|
60 CLOG( ( EActiveDb, 1, _L( "<- CActiveApDb::~CActiveApDb" ) ) ); |
|
61 } |
46 } |
62 |
47 |
63 |
48 |
64 // --------------------------------------------------------- |
49 // --------------------------------------------------------- |
65 // CActiveApDb::CActiveApDb |
50 // CActiveApDb::CActiveApDb |
74 // CActiveApDb::ConstructL |
59 // CActiveApDb::ConstructL |
75 // --------------------------------------------------------- |
60 // --------------------------------------------------------- |
76 // |
61 // |
77 void CActiveApDb::ConstructL() |
62 void CActiveApDb::ConstructL() |
78 { |
63 { |
79 iDb = CCommsDatabase::NewL( ); |
|
80 iObservers = new ( ELeave ) CArrayPtrFlat<MActiveApDbObserver> |
|
81 ( KObserverArrayGranularity ); |
|
82 iDbNotifier = new ( ELeave ) CActiveApDbNotifier( *this ); |
|
83 |
|
84 iState = EReady; |
|
85 } |
64 } |
86 |
65 |
87 |
66 |
88 // --------------------------------------------------------- |
67 // --------------------------------------------------------- |
89 // CActiveApDb::AddObserverL |
68 // CActiveApDb::AddObserverL |
90 // --------------------------------------------------------- |
69 // --------------------------------------------------------- |
91 // |
70 // |
92 EXPORT_C void CActiveApDb::AddObserverL( MActiveApDbObserver* anObserver ) |
71 EXPORT_C void CActiveApDb::AddObserverL( MActiveApDbObserver* anObserver ) |
93 { |
72 { |
94 CLOG( ( EActiveDb, 0, _L( "-> CActiveApDb::AddObserverL" ) ) ); |
|
95 |
|
96 if ( !anObserver ) |
|
97 { |
|
98 User::Leave( KErrNullPointerPassed ); |
|
99 } |
|
100 iObservers->AppendL( anObserver ); |
|
101 iDbNotifier->Start(); |
|
102 |
|
103 CLOG( ( EActiveDb, 1, _L( "<- CActiveApDb::AddObserverL" ) ) ); |
|
104 } |
73 } |
105 |
74 |
106 |
75 |
107 // --------------------------------------------------------- |
76 // --------------------------------------------------------- |
108 // CActiveApDb::RemoveObserver |
77 // CActiveApDb::RemoveObserver |
109 // --------------------------------------------------------- |
78 // --------------------------------------------------------- |
110 // |
79 // |
111 EXPORT_C void CActiveApDb::RemoveObserver( MActiveApDbObserver* anObserver ) |
80 EXPORT_C void CActiveApDb::RemoveObserver( MActiveApDbObserver* anObserver ) |
112 { |
81 { |
113 CLOG( ( EActiveDb, 0, _L( "-> CActiveApDb::RemoveObserver" ) ) ); |
|
114 |
|
115 __ASSERT_DEBUG( anObserver, ApCommons::Panic( ENullPointer ) ); |
|
116 TInt count = iObservers->Count(); |
|
117 for ( TInt i = 0; i < count; i++ ) |
|
118 { |
|
119 if ( iObservers->At( i ) == anObserver ) |
|
120 { |
|
121 iObservers->Delete( i ); |
|
122 // leave cycle for faster processing, can not return because |
|
123 // we may have to stop() if it was the last one... |
|
124 break; |
|
125 } |
|
126 } |
|
127 if ( !iObservers->Count() ) |
|
128 { // no more observers waiting so stop notification... |
|
129 iDbNotifier->Stop(); |
|
130 } |
|
131 // for some reason, observer was not found-> |
|
132 // Someone has already removed it |
|
133 // simply ignore it |
|
134 CLOG( ( EActiveDb, 1, _L( "<- CActiveApDb::RemoveObserver" ) ) ); |
|
135 |
|
136 } |
82 } |
137 |
83 |
138 |
84 |
139 // --------------------------------------------------------- |
85 // --------------------------------------------------------- |
140 // CActiveApDb::Database |
86 // CActiveApDb::Database |
141 // --------------------------------------------------------- |
87 // --------------------------------------------------------- |
142 // |
88 // |
143 EXPORT_C CCommsDatabase* CActiveApDb::Database() |
89 EXPORT_C CCommsDatabase* CActiveApDb::Database() |
144 { |
90 { |
145 CLOG( ( EActiveDb, 0, _L( "<-> CActiveApDb::Database" ) ) ); |
91 return NULL; |
146 |
|
147 return iDb; |
|
148 } |
92 } |
149 |
93 |
150 // --------------------------------------------------------- |
94 // --------------------------------------------------------- |
151 // CActiveApDb::HandleDbEventL |
95 // CActiveApDb::HandleDbEventL |
152 // --------------------------------------------------------- |
96 // --------------------------------------------------------- |
153 // |
97 // |
154 void CActiveApDb::HandleDbEventL( TInt anEvent ) |
98 void CActiveApDb::HandleDbEventL( TInt anEvent ) |
155 { |
99 { |
156 CLOG( ( EActiveDb, 0, _L( "-> CActiveApDb::HandleDbEventL" ) ) ); |
|
157 |
|
158 // possible events: EClose,EUnlock,ECommit,ERollback,ERecover |
|
159 switch ( anEvent ) |
|
160 { |
|
161 case RDbNotifier::EUnlock: |
|
162 { |
|
163 CLOG( ( EActiveDb, 2, _L( "Notifier Unlock" ) ) ); |
|
164 NotifyObserversL( MActiveApDbObserver::EDbAvailable ); |
|
165 break; |
|
166 } |
|
167 case RDbNotifier::ECommit: |
|
168 { |
|
169 CLOG( ( EActiveDb, 2, _L( "Notifier Commit" ) ) ); |
|
170 NotifyObserversL( MActiveApDbObserver::EDbChanged ); |
|
171 break; |
|
172 } |
|
173 case RDbNotifier::EClose: |
|
174 { |
|
175 CLOG( ( EActiveDb, 2, _L( "Notifier Close/Rollbac/Recover" ) ) ); |
|
176 NotifyObserversL( MActiveApDbObserver::EDbClosing ); |
|
177 // Use base class' method to keep the notifier alive. |
|
178 // We need to know when all clients has released the db. |
|
179 break; |
|
180 } |
|
181 case RDbNotifier::ERollback: |
|
182 { |
|
183 CLOG( ( EActiveDb, 2, _L( "Notifier Close/Rollbac/Recover" ) ) ); |
|
184 NotifyObserversL( MActiveApDbObserver::EDbAvailable ); |
|
185 break; |
|
186 } |
|
187 case RDbNotifier::ERecover: |
|
188 { |
|
189 CLOG( ( EActiveDb, 2, _L( "Notifier Close/Rollbac/Recover" ) ) ); |
|
190 NotifyObserversL( MActiveApDbObserver::EDbClosing ); |
|
191 // Use base class' method to keep the notifier alive. |
|
192 // We need to know when all clients has released the db. |
|
193 break; |
|
194 } |
|
195 default: |
|
196 { |
|
197 // Don't know what's happened, but instead of |
|
198 // Panicking, it's better to 'simulate' a change. |
|
199 // 'Defensive' programming. |
|
200 CLOG( ( EActiveDb, 2, _L( "Notifier UNKNOWN" ) ) ); |
|
201 NotifyObserversL( MActiveApDbObserver::EDbChanged ); |
|
202 break; |
|
203 } |
|
204 } |
|
205 CLOG( ( EActiveDb, 1, _L( "<- CActiveApDb::HandleDbEventL" ) ) ); |
|
206 |
100 |
207 } |
101 } |
208 |
102 |
209 |
103 |
210 |
104 |