1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/*
* Copyright (C) 2022 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "SharedWorkerContextManager.h"
#include "Logging.h"
#include "SharedWorkerGlobalScope.h"
#include "SharedWorkerThread.h"
#include "SharedWorkerThreadProxy.h"
#include <wtf/NeverDestroyed.h>
namespace WebCore {
SharedWorkerContextManager& SharedWorkerContextManager::singleton()
{
static NeverDestroyed<SharedWorkerContextManager> sharedManager;
return sharedManager;
}
SharedWorkerThreadProxy* SharedWorkerContextManager::sharedWorker(SharedWorkerIdentifier sharedWorkerIdentifier) const
{
return m_workerMap.get(sharedWorkerIdentifier);
}
void SharedWorkerContextManager::stopSharedWorker(SharedWorkerIdentifier sharedWorkerIdentifier)
{
auto worker = m_workerMap.take(sharedWorkerIdentifier);
RELEASE_LOG(SharedWorker, "SharedWorkerContextManager::stopSharedWorker: sharedWorkerIdentifier=%" PRIu64 ", worker=%p", sharedWorkerIdentifier.toUInt64(), worker.get());
if (!worker)
return;
worker->setAsTerminatingOrTerminated();
// FIXME: We should be able to deal with the thread being unresponsive here.
auto& thread = worker->thread();
thread.stop([worker = WTFMove(worker)]() mutable {
// Spin the runloop before releasing the shared worker thread proxy, as there would otherwise be
// a race towards its destruction.
callOnMainThread([worker = WTFMove(worker)] { });
});
}
void SharedWorkerContextManager::stopAllSharedWorkers()
{
while (!m_workerMap.isEmpty())
stopSharedWorker(m_workerMap.begin()->key);
}
void SharedWorkerContextManager::setConnection(std::unique_ptr<Connection>&& connection)
{
ASSERT(!m_connection || m_connection->isClosed());
m_connection = WTFMove(connection);
}
auto SharedWorkerContextManager::connection() const -> Connection*
{
return m_connection.get();
}
void SharedWorkerContextManager::registerSharedWorkerThread(Ref<SharedWorkerThreadProxy>&& proxy)
{
ASSERT(isMainThread());
RELEASE_LOG(SharedWorker, "SharedWorkerContextManager::registerSharedWorkerThread: sharedWorkerIdentifier=%" PRIu64, proxy->identifier().toUInt64());
auto result = m_workerMap.add(proxy->identifier(), proxy.copyRef());
ASSERT_UNUSED(result, result.isNewEntry);
proxy->thread().start([](const String& /*exceptionMessage*/) { });
}
void SharedWorkerContextManager::Connection::postConnectEvent(SharedWorkerIdentifier sharedWorkerIdentifier, TransferredMessagePort&& transferredPort, String&& sourceOrigin)
{
ASSERT(isMainThread());
auto* proxy = SharedWorkerContextManager::singleton().sharedWorker(sharedWorkerIdentifier);
RELEASE_LOG(SharedWorker, "SharedWorkerContextManager::Connection::postConnectEvent: sharedWorkerIdentifier=%" PRIu64 ", proxy=%p", sharedWorkerIdentifier.toUInt64(), proxy);
if (!proxy)
return;
proxy->thread().runLoop().postTask([transferredPort = WTFMove(transferredPort), sourceOrigin = WTFMove(sourceOrigin).isolatedCopy()] (auto& scriptExecutionContext) mutable {
ASSERT(!isMainThread());
downcast<SharedWorkerGlobalScope>(scriptExecutionContext).postConnectEvent(WTFMove(transferredPort), WTFMove(sourceOrigin));
});
}
void SharedWorkerContextManager::Connection::terminateSharedWorker(SharedWorkerIdentifier sharedWorkerIdentifier)
{
ASSERT(isMainThread());
RELEASE_LOG(SharedWorker, "SharedWorkerContextManager::Connection::terminateSharedWorker: sharedWorkerIdentifier=%" PRIu64, sharedWorkerIdentifier.toUInt64());
SharedWorkerContextManager::singleton().stopSharedWorker(sharedWorkerIdentifier);
}
} // namespace WebCore
|
