1 files changed, 64 insertions, 0 deletions
diff --git a/src/javascript/jsc/bindings/webcore/MessageChannel.cpp b/src/javascript/jsc/bindings/webcore/MessageChannel.cpp
new file mode 100644
index 000000000..7f7a12c3e
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+++ b/src/javascript/jsc/bindings/webcore/MessageChannel.cpp
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+/*
+ * Copyright (C) 2008 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. ``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
+ * 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 "MessageChannel.h"
+
+#include "MessagePort.h"
+#include "MessagePortChannelProvider.h"
+#include "ScriptExecutionContext.h"
+
+namespace WebCore {
+
+static std::pair<Ref<MessagePort>, Ref<MessagePort>> generateMessagePorts(ScriptExecutionContext& context)
+{
+    MessagePortIdentifier id1 = { Process::identifier(), ObjectIdentifier<MessagePortIdentifier::PortIdentifierType>::generate() };
+    MessagePortIdentifier id2 = { Process::identifier(), ObjectIdentifier<MessagePortIdentifier::PortIdentifierType>::generate() };
+
+    return { MessagePort::create(context, id1, id2), MessagePort::create(context, id2, id1) };
+}
+
+Ref<MessageChannel> MessageChannel::create(ScriptExecutionContext& context)
+{
+    return adoptRef(*new MessageChannel(context));
+}
+
+MessageChannel::MessageChannel(ScriptExecutionContext& context)
+    : m_ports(generateMessagePorts(context))
+{
+    if (!context.activeDOMObjectsAreStopped()) {
+        ASSERT(!port1().closed());
+        ASSERT(!port2().closed());
+        MessagePortChannelProvider::fromContext(context).createNewMessagePortChannel(port1().identifier(), port2().identifier());
+    } else {
+        ASSERT(port1().closed());
+        ASSERT(port2().closed());
+    }
+}
+
+MessageChannel::~MessageChannel() = default;
+
+} // namespace WebCore