IDB transactions never reset if the Web Process ends before cleaning up
[WebKit-https.git] / Source / WebKit2 / DatabaseProcess / DatabaseToWebProcessConnection.cpp
1 /*
2  * Copyright (C) 2013 Apple Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23  * THE POSSIBILITY OF SUCH DAMAGE.
24  */
25
26 #include "config.h"
27 #include "DatabaseToWebProcessConnection.h"
28
29 #include "DatabaseProcessIDBConnection.h"
30 #include "DatabaseProcessIDBConnectionMessages.h"
31 #include "DatabaseToWebProcessConnectionMessages.h"
32 #include <wtf/RunLoop.h>
33
34 #if ENABLE(DATABASE_PROCESS)
35
36 namespace WebKit {
37
38 PassRefPtr<DatabaseToWebProcessConnection> DatabaseToWebProcessConnection::create(IPC::Connection::Identifier connectionIdentifier)
39 {
40     return adoptRef(new DatabaseToWebProcessConnection(connectionIdentifier));
41 }
42
43 DatabaseToWebProcessConnection::DatabaseToWebProcessConnection(IPC::Connection::Identifier connectionIdentifier)
44 {
45     m_connection = IPC::Connection::createServerConnection(connectionIdentifier, this, RunLoop::main());
46     m_connection->setOnlySendMessagesAsDispatchWhenWaitingForSyncReplyWhenProcessingSuchAMessage(true);
47     m_connection->open();
48 }
49
50 DatabaseToWebProcessConnection::~DatabaseToWebProcessConnection()
51 {
52
53 }
54
55 void DatabaseToWebProcessConnection::didReceiveMessage(IPC::Connection* connection, IPC::MessageDecoder& decoder)
56 {
57     if (decoder.messageReceiverName() == Messages::DatabaseToWebProcessConnection::messageReceiverName()) {
58         didReceiveDatabaseToWebProcessConnectionMessage(connection, decoder);
59         return;
60     }
61
62     if (decoder.messageReceiverName() == Messages::DatabaseProcessIDBConnection::messageReceiverName()) {
63         IDBConnectionMap::iterator backendIterator = m_idbConnections.find(decoder.destinationID());
64         if (backendIterator != m_idbConnections.end())
65             backendIterator->value->didReceiveDatabaseProcessIDBConnectionMessage(connection, decoder);
66         return;
67     }
68
69     ASSERT_NOT_REACHED();
70 }
71
72 void DatabaseToWebProcessConnection::didReceiveSyncMessage(IPC::Connection* connection, IPC::MessageDecoder& decoder, std::unique_ptr<IPC::MessageEncoder>& reply)
73 {
74     if (decoder.messageReceiverName() == Messages::DatabaseProcessIDBConnection::messageReceiverName()) {
75         IDBConnectionMap::iterator backendIterator = m_idbConnections.find(decoder.destinationID());
76         if (backendIterator != m_idbConnections.end())
77             backendIterator->value->didReceiveSyncDatabaseProcessIDBConnectionMessage(connection, decoder, reply);
78         return;
79     }
80
81     ASSERT_NOT_REACHED();
82 }
83
84 void DatabaseToWebProcessConnection::didClose(IPC::Connection*)
85 {
86     // The WebProcess has disconnected, close all of the connections associated with it
87     while (!m_idbConnections.isEmpty())
88         removeDatabaseProcessIDBConnection(m_idbConnections.begin()->key);
89 }
90
91 void DatabaseToWebProcessConnection::didReceiveInvalidMessage(IPC::Connection*, IPC::StringReference messageReceiverName, IPC::StringReference messageName)
92 {
93
94 }
95
96 void DatabaseToWebProcessConnection::establishIDBConnection(uint64_t serverConnectionIdentifier)
97 {
98     RefPtr<DatabaseProcessIDBConnection> idbConnection = DatabaseProcessIDBConnection::create(*this, serverConnectionIdentifier);
99     m_idbConnections.set(serverConnectionIdentifier, idbConnection.release());
100 }
101
102 void DatabaseToWebProcessConnection::removeDatabaseProcessIDBConnection(uint64_t serverConnectionIdentifier)
103 {
104     ASSERT(m_idbConnections.contains(serverConnectionIdentifier));
105
106     RefPtr<DatabaseProcessIDBConnection> idbConnection = m_idbConnections.take(serverConnectionIdentifier);
107     idbConnection->disconnectedFromWebProcess();
108 }
109
110
111 } // namespace WebKit
112
113 #endif // ENABLE(DATABASE_PROCESS)