Permalink
Switch branches/tags
Nothing to show
Find file
Fetching contributors…
Cannot retrieve contributors at this time
105 lines (90 sloc) 3.31 KB
/*
* Copyright (C) 2009 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
* 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.
*/
#ifndef APIShims_h
#define APIShims_h
#include "CallFrame.h"
#include "GCActivityCallback.h"
#include "JSLock.h"
#include <wtf/WTFThreadData.h>
namespace JSC {
class APIEntryShimWithoutLock {
protected:
APIEntryShimWithoutLock(JSGlobalData* globalData, bool registerThread)
: m_globalData(globalData)
, m_entryIdentifierTable(wtfThreadData().setCurrentIdentifierTable(globalData->identifierTable))
{
UNUSED_PARAM(registerThread);
#if ENABLE(JSC_MULTIPLE_THREADS)
if (registerThread)
globalData->heap.machineThreads().addCurrentThread();
#endif
m_globalData->heap.activityCallback()->synchronize();
m_globalData->timeoutChecker.start();
}
~APIEntryShimWithoutLock()
{
m_globalData->timeoutChecker.stop();
wtfThreadData().setCurrentIdentifierTable(m_entryIdentifierTable);
}
private:
JSGlobalData* m_globalData;
IdentifierTable* m_entryIdentifierTable;
};
class APIEntryShim : public APIEntryShimWithoutLock {
public:
// Normal API entry
APIEntryShim(ExecState* exec, bool registerThread = true)
: APIEntryShimWithoutLock(&exec->globalData(), registerThread)
, m_lock(exec)
{
}
// JSPropertyNameAccumulator only has a globalData.
APIEntryShim(JSGlobalData* globalData, bool registerThread = true)
: APIEntryShimWithoutLock(globalData, registerThread)
, m_lock(globalData->isSharedInstance() ? LockForReal : SilenceAssertionsOnly)
{
}
private:
JSLock m_lock;
};
class APICallbackShim {
public:
APICallbackShim(ExecState* exec)
: m_dropAllLocks(exec)
, m_globalData(&exec->globalData())
{
wtfThreadData().resetCurrentIdentifierTable();
}
~APICallbackShim()
{
m_globalData->heap.activityCallback()->synchronize();
wtfThreadData().setCurrentIdentifierTable(m_globalData->identifierTable);
}
private:
JSLock::DropAllLocks m_dropAllLocks;
JSGlobalData* m_globalData;
};
}
#endif