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/*
* Copyright (C) 2021-2024 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
#include <wtf/CompletionHandler.h>
#include <wtf/RefCountedAndCanMakeWeakPtr.h>
#include <wtf/Vector.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/CString.h>
#if PLATFORM(COCOA)
#include <wtf/OSObjectPtr.h>
#include <wtf/spi/darwin/XPCSPI.h>
#endif
namespace WebKit {
namespace Daemon {
using EncodedMessage = Vector<uint8_t>;
class Connection : public RefCountedAndCanMakeWeakPtr<Connection> {
public:
#if PLATFORM(COCOA)
static Ref<Connection> create(OSObjectPtr<xpc_connection_t>&& connection)
{
return adoptRef(*new Connection(WTFMove(connection)));
}
#endif
virtual ~Connection() = default;
#if PLATFORM(COCOA)
xpc_connection_t get() const { return m_connection.get(); }
void send(xpc_object_t) const;
void sendWithReply(xpc_object_t, CompletionHandler<void(xpc_object_t)>&&) const;
#endif
protected:
Connection() = default;
#if PLATFORM(COCOA)
explicit Connection(OSObjectPtr<xpc_connection_t>&& connection)
: m_connection(WTFMove(connection)) { }
#endif
virtual void initializeConnectionIfNeeded() const { }
#if PLATFORM(COCOA)
mutable OSObjectPtr<xpc_connection_t> m_connection;
#endif
};
template<typename Traits>
class ConnectionToMachService : public Connection {
public:
virtual ~ConnectionToMachService() = default;
void send(typename Traits::MessageType, EncodedMessage&&) const;
void sendWithReply(typename Traits::MessageType, EncodedMessage&&, CompletionHandler<void(EncodedMessage&&)>&&) const;
virtual void newConnectionWasInitialized() const = 0;
#if PLATFORM(COCOA)
virtual OSObjectPtr<xpc_object_t> dictionaryFromMessage(typename Traits::MessageType, EncodedMessage&&) const = 0;
virtual void connectionReceivedEvent(xpc_object_t) = 0;
#endif
const CString& machServiceName() const { return m_machServiceName; }
protected:
explicit ConnectionToMachService(CString&& machServiceName)
: m_machServiceName(WTFMove(machServiceName))
{ }
private:
void initializeConnectionIfNeeded() const final;
const CString m_machServiceName;
};
} // namespace Daemon
} // namespace WebKit
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