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/*
* Copyright (C) 2024 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.
*/
#pragma once
#if ENABLE(MODEL_PROCESS)
#include "Connection.h"
#include "MessageReceiverMap.h"
#include <wtf/AbstractThreadSafeRefCountedAndCanMakeWeakPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/WeakHashSet.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/WTFString.h>
namespace WebKit {
class WebPage;
struct ModelProcessConnectionInfo;
struct WebPageCreationParameters;
class ModelProcessConnection
: public ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr<ModelProcessConnection>
, public IPC::Connection::Client {
WTF_MAKE_FAST_ALLOCATED;
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(ModelProcessConnection);
public:
static RefPtr<ModelProcessConnection> create(IPC::Connection& parentConnection);
~ModelProcessConnection();
void ref() const final { ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr::ref(); }
void deref() const final { ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr::deref(); }
IPC::Connection& connection() { return m_connection.get(); }
IPC::MessageReceiverMap& messageReceiverMap() { return m_messageReceiverMap; }
#if HAVE(AUDIT_TOKEN)
std::optional<audit_token_t> auditToken();
#endif
#if HAVE(VISIBILITY_PROPAGATION_VIEW)
void createVisibilityPropagationContextForPage(WebPage&);
void destroyVisibilityPropagationContextForPage(WebPage&);
#endif
void configureLoggingChannel(const String&, WTFLogChannelState, WTFLogLevel);
class Client : public AbstractThreadSafeRefCountedAndCanMakeWeakPtr {
public:
virtual ~Client() = default;
virtual void modelProcessConnectionDidClose(ModelProcessConnection&) { }
};
void addClient(const Client& client) { m_clients.add(client); }
static constexpr Seconds defaultTimeout = 3_s;
private:
ModelProcessConnection(IPC::Connection::Identifier&&);
bool waitForDidInitialize();
void invalidate();
// IPC::Connection::Client
void didClose(IPC::Connection&) override;
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
bool didReceiveSyncMessage(IPC::Connection&, IPC::Decoder&, UniqueRef<IPC::Encoder>&) final;
void didReceiveInvalidMessage(IPC::Connection&, IPC::MessageName, int32_t indexOfObjectFailingDecoding) override;
bool dispatchMessage(IPC::Connection&, IPC::Decoder&);
bool dispatchSyncMessage(IPC::Connection&, IPC::Decoder&, UniqueRef<IPC::Encoder>&);
// Messages.
void didInitialize(std::optional<ModelProcessConnectionInfo>&&);
// The connection from the web process to the model process.
Ref<IPC::Connection> m_connection;
IPC::MessageReceiverMap m_messageReceiverMap;
bool m_hasInitialized { false };
#if HAVE(AUDIT_TOKEN)
std::optional<audit_token_t> m_auditToken;
#endif
ThreadSafeWeakHashSet<Client> m_clients;
};
} // namespace WebKit
#endif // ENABLE(MODEL_PROCESS)
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