blob: 4273ea2c644ab230de87acf552c648acb0e6fe08 [file] [log] [blame]
/*
* Copyright (C) 2019 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 "IDBSerializationContext.h"
#include <JavaScriptCore/JSObjectInlines.h>
#include <pal/SessionID.h>
#if ENABLE(INDEXED_DATABASE)
namespace WebCore {
namespace IDBServer {
static Lock serializationContextMapMutex;
static HashMap<PAL::SessionID, IDBSerializationContext*>& serializationContextMap()
{
static NeverDestroyed<HashMap<PAL::SessionID, IDBSerializationContext*>> map;
return map;
}
Ref<IDBSerializationContext> IDBSerializationContext::getOrCreateIDBSerializationContext(PAL::SessionID sessionID)
{
Locker<Lock> locker(serializationContextMapMutex);
auto[iter, isNewEntry] = serializationContextMap().add(sessionID, nullptr);
if (isNewEntry) {
Ref<IDBSerializationContext> protectedContext = adoptRef(*new IDBSerializationContext(sessionID));
iter->value = protectedContext.ptr();
return protectedContext;
}
return *iter->value;
}
IDBSerializationContext::~IDBSerializationContext()
{
Locker<Lock> locker(serializationContextMapMutex);
ASSERT(this == serializationContextMap().get(m_sessionID));
if (m_vm) {
JSC::JSLockHolder lock(*m_vm);
m_globalObject.clear();
m_vm = nullptr;
}
serializationContextMap().remove(m_sessionID);
}
void IDBSerializationContext::initializeVM()
{
if (m_vm)
return;
ASSERT(!m_globalObject);
m_vm = JSC::VM::create();
JSC::JSLockHolder locker(m_vm.get());
m_globalObject.set(*m_vm, JSC::JSGlobalObject::create(*m_vm, JSC::JSGlobalObject::createStructure(*m_vm, JSC::jsNull())));
}
JSC::VM& IDBSerializationContext::vm()
{
initializeVM();
return *m_vm;
}
JSC::ExecState& IDBSerializationContext::execState()
{
initializeVM();
return *m_globalObject.get()->globalExec();
}
IDBSerializationContext::IDBSerializationContext(PAL::SessionID sessionID)
: m_sessionID(sessionID)
{
}
} // namespace IDBServer
} // namespace WebCore
#endif