1/*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
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.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef MessageSender_h
27#define MessageSender_h
28
29#include <wtf/Assertions.h>
30#include "Connection.h"
31
32namespace IPC {
33
34class MessageSender {
35public:
36    virtual ~MessageSender();
37
38    template<typename U> bool send(const U& message)
39    {
40        return send(message, messageSenderDestinationID(), 0);
41    }
42
43    template<typename U> bool send(const U& message, uint64_t destinationID, unsigned messageSendFlags = 0)
44    {
45        static_assert(!U::isSync, "Message is sync!");
46
47        auto encoder = std::make_unique<MessageEncoder>(U::receiverName(), U::name(), destinationID);
48        encoder->encode(message.arguments());
49
50        return sendMessage(WTF::move(encoder), messageSendFlags);
51    }
52
53    template<typename T>
54    bool sendSync(T&& message, typename T::Reply&& reply, std::chrono::milliseconds timeout = std::chrono::milliseconds::max(), unsigned syncSendFlags = 0)
55    {
56        static_assert(T::isSync, "Message is not sync!");
57
58        return sendSync(std::forward<T>(message), WTF::move(reply), messageSenderDestinationID(), timeout, syncSendFlags);
59    }
60
61    template<typename T>
62    bool sendSync(T&& message, typename T::Reply&& reply, uint64_t destinationID, std::chrono::milliseconds timeout = std::chrono::milliseconds::max(), unsigned syncSendFlags = 0)
63    {
64        ASSERT(messageSenderConnection());
65
66        return messageSenderConnection()->sendSync(WTF::move(message), WTF::move(reply), destinationID, timeout, syncSendFlags);
67    }
68
69    virtual bool sendMessage(std::unique_ptr<MessageEncoder>, unsigned messageSendFlags);
70
71private:
72    virtual Connection* messageSenderConnection() = 0;
73    virtual uint64_t messageSenderDestinationID() = 0;
74};
75
76} // namespace IPC
77
78#endif // MessageSender_h
79