2 * Copyright (C) 2009 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include "CallFrame.h"
30 #include "GCActivityCallback.h"
32 #include <wtf/WTFThreadData.h>
36 class APIEntryShimWithoutLock {
38 APIEntryShimWithoutLock(JSGlobalData* globalData, bool registerThread)
39 : m_globalData(globalData)
40 , m_entryIdentifierTable(wtfThreadData().setCurrentIdentifierTable(globalData->identifierTable))
42 UNUSED_PARAM(registerThread);
43 #if ENABLE(JSC_MULTIPLE_THREADS)
45 globalData->heap.machineThreads().addCurrentThread();
47 m_globalData->heap.activityCallback()->synchronize();
48 m_globalData->timeoutChecker.start();
51 ~APIEntryShimWithoutLock()
53 m_globalData->timeoutChecker.stop();
54 wtfThreadData().setCurrentIdentifierTable(m_entryIdentifierTable);
58 JSGlobalData* m_globalData;
59 IdentifierTable* m_entryIdentifierTable;
62 class APIEntryShim : public APIEntryShimWithoutLock {
65 APIEntryShim(ExecState* exec, bool registerThread = true)
66 : APIEntryShimWithoutLock(&exec->globalData(), registerThread)
71 // JSPropertyNameAccumulator only has a globalData.
72 APIEntryShim(JSGlobalData* globalData, bool registerThread = true)
73 : APIEntryShimWithoutLock(globalData, registerThread)
74 , m_lock(globalData->isSharedInstance() ? LockForReal : SilenceAssertionsOnly)
82 class APICallbackShim {
84 APICallbackShim(ExecState* exec)
85 : m_dropAllLocks(exec)
86 , m_globalData(&exec->globalData())
88 wtfThreadData().resetCurrentIdentifierTable();
93 m_globalData->heap.activityCallback()->synchronize();
94 wtfThreadData().setCurrentIdentifierTable(m_globalData->identifierTable);
98 JSLock::DropAllLocks m_dropAllLocks;
99 JSGlobalData* m_globalData;