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1 /* | 1 /* |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google Inc. All rights reserved. |
3 * Copyright (C) 2013 Apple Inc. All rights reserved. | 3 * Copyright (C) 2013 Apple Inc. All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions are | 6 * modification, are permitted provided that the following conditions are |
7 * met: | 7 * met: |
8 * | 8 * |
9 * * Redistributions of source code must retain the above copyright | 9 * * Redistributions of source code must retain the above copyright |
10 * notice, this list of conditions and the following disclaimer. | 10 * notice, this list of conditions and the following disclaimer. |
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43 return database->stringIdentifier(); | 43 return database->stringIdentifier(); |
44 } | 44 } |
45 | 45 |
46 SQLTransactionCoordinator::SQLTransactionCoordinator() | 46 SQLTransactionCoordinator::SQLTransactionCoordinator() |
47 : m_isShuttingDown(false) | 47 : m_isShuttingDown(false) |
48 { | 48 { |
49 } | 49 } |
50 | 50 |
51 DEFINE_TRACE(SQLTransactionCoordinator) | 51 DEFINE_TRACE(SQLTransactionCoordinator) |
52 { | 52 { |
53 visitor->trace(m_coordinationInfoMap); | |
54 } | 53 } |
55 | 54 |
56 void SQLTransactionCoordinator::processPendingTransactions(CoordinationInfo& inf
o) | 55 void SQLTransactionCoordinator::processPendingTransactions(CoordinationInfo& inf
o) |
57 { | 56 { |
58 if (info.activeWriteTransaction || info.pendingTransactions.isEmpty()) | 57 if (info.activeWriteTransaction || info.pendingTransactions.isEmpty()) |
59 return; | 58 return; |
60 | 59 |
61 SQLTransactionBackend* firstPendingTransaction = info.pendingTransactions.fi
rst(); | 60 SQLTransactionBackend* firstPendingTransaction = info.pendingTransactions.fi
rst(); |
62 if (firstPendingTransaction->isReadOnly()) { | 61 if (firstPendingTransaction->isReadOnly()) { |
63 do { | 62 do { |
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123 // Notify all transactions in progress that the database thread is shutting
down | 122 // Notify all transactions in progress that the database thread is shutting
down |
124 for (CoordinationInfoHeapMap::iterator coordinationInfoIterator = m_coordina
tionInfoMap.begin(); | 123 for (CoordinationInfoHeapMap::iterator coordinationInfoIterator = m_coordina
tionInfoMap.begin(); |
125 coordinationInfoIterator != m_coordinationInfoMap.end(); ++coordination
InfoIterator) { | 124 coordinationInfoIterator != m_coordinationInfoMap.end(); ++coordination
InfoIterator) { |
126 CoordinationInfo& info = coordinationInfoIterator->value; | 125 CoordinationInfo& info = coordinationInfoIterator->value; |
127 | 126 |
128 // Clean up transactions that have reached "lockAcquired": | 127 // Clean up transactions that have reached "lockAcquired": |
129 // Transaction phase 4 cleanup. See comment on "What happens if a | 128 // Transaction phase 4 cleanup. See comment on "What happens if a |
130 // transaction is interrupted?" at the top of SQLTransactionBackend.cpp. | 129 // transaction is interrupted?" at the top of SQLTransactionBackend.cpp. |
131 if (info.activeWriteTransaction) | 130 if (info.activeWriteTransaction) |
132 info.activeWriteTransaction->notifyDatabaseThreadIsShuttingDown(); | 131 info.activeWriteTransaction->notifyDatabaseThreadIsShuttingDown(); |
133 for (HeapHashSet<Member<SQLTransactionBackend>>::iterator activeReadTran
sactionsIterator = | 132 for (auto& it : info.activeReadTransactions) { |
134 info.activeReadTransactions.begin(); | 133 it->notifyDatabaseThreadIsShuttingDown(); |
135 activeReadTransactionsIterator != info.activeReadTransactions.end()
; | |
136 ++activeReadTransactionsIterator) { | |
137 (*activeReadTransactionsIterator)->notifyDatabaseThreadIsShuttingDow
n(); | |
138 } | 134 } |
139 | 135 |
140 // Clean up transactions that have NOT reached "lockAcquired": | 136 // Clean up transactions that have NOT reached "lockAcquired": |
141 // Transaction phase 3 cleanup. See comment on "What happens if a | 137 // Transaction phase 3 cleanup. See comment on "What happens if a |
142 // transaction is interrupted?" at the top of SQLTransactionBackend.cpp. | 138 // transaction is interrupted?" at the top of SQLTransactionBackend.cpp. |
143 while (!info.pendingTransactions.isEmpty()) { | 139 while (!info.pendingTransactions.isEmpty()) { |
144 SQLTransactionBackend* transaction = info.pendingTransactions.takeFi
rst(); | 140 SQLTransactionBackend* transaction = info.pendingTransactions.takeFi
rst(); |
145 transaction->notifyDatabaseThreadIsShuttingDown(); | 141 transaction->notifyDatabaseThreadIsShuttingDown(); |
146 } | 142 } |
147 } | 143 } |
148 | 144 |
149 // Clean up all pending transactions for all databases | 145 // Clean up all pending transactions for all databases |
150 m_coordinationInfoMap.clear(); | 146 m_coordinationInfoMap.clear(); |
151 } | 147 } |
152 | 148 |
153 } // namespace blink | 149 } // namespace blink |
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