1 /* 2 * Copyright (C) 2008 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 COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 */ 26 27 #include "config.h" 28 #include "core/dom/MessageChannel.h" 29 30 #include "core/dom/MessagePort.h" 31 #include "public/platform/Platform.h" 32 #include "public/platform/WebMessagePortChannel.h" 33 34 namespace blink { 35 36 DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(MessageChannel); 37 38 static void createChannel(MessagePort* port1, MessagePort* port2) 39 { 40 WebMessagePortChannel* channel1; 41 WebMessagePortChannel* channel2; 42 Platform::current()->createMessageChannel(&channel1, &channel2); 43 ASSERT(channel1 && channel2); 44 45 // Now entangle the proxies with the appropriate local ports. 46 port1->entangle(adoptPtr(channel2)); 47 port2->entangle(adoptPtr(channel1)); 48 } 49 50 MessageChannel::MessageChannel(ExecutionContext* context) 51 : m_port1(MessagePort::create(*context)) 52 , m_port2(MessagePort::create(*context)) 53 { 54 createChannel(m_port1.get(), m_port2.get()); 55 } 56 57 void MessageChannel::trace(Visitor* visitor) 58 { 59 visitor->trace(m_port1); 60 visitor->trace(m_port2); 61 } 62 63 } // namespace blink 64
