WebCore/websockets/ThreadableWebSocketChannelClientWrapper.h
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/websockets/ThreadableWebSocketChannelClientWrapper.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2009 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER 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.
+ */
+
+#ifndef ThreadableWebSocketChannelClientWrapper_h
+#define ThreadableWebSocketChannelClientWrapper_h
+
+#if ENABLE(WEB_SOCKETS)
+
+#include "PlatformString.h"
+#include "WebSocketChannelClient.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/Threading.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+class String;
+
+class ThreadableWebSocketChannelClientWrapper : public ThreadSafeShared<ThreadableWebSocketChannelClientWrapper> {
+public:
+    static PassRefPtr<ThreadableWebSocketChannelClientWrapper> create(WebSocketChannelClient* client)
+    {
+        return adoptRef(new ThreadableWebSocketChannelClientWrapper(client));
+    }
+
+    void clearSyncMethodDone()
+    {
+        m_syncMethodDone = false;
+    }
+    void setSyncMethodDone()
+    {
+        m_syncMethodDone = true;
+    }
+
+    bool syncMethodDone() const
+    {
+        return m_syncMethodDone;
+    }
+
+    bool sent() const
+    {
+        return m_sent;
+    }
+    void setSent(bool sent)
+    {
+        m_sent = sent;
+        m_syncMethodDone = true;
+    }
+
+    unsigned long bufferedAmount() const
+    {
+        return m_bufferedAmount;
+    }
+    void setBufferedAmount(unsigned long bufferedAmount)
+    {
+        m_bufferedAmount = bufferedAmount;
+        m_syncMethodDone = true;
+    }
+
+    void clearClient()
+    {
+        m_client = 0;
+    }
+
+    void didConnect()
+    {
+        m_pendingConnected = true;
+        if (!m_suspended)
+            processPendingEvents();
+    }
+
+    void didReceiveMessage(const String& msg)
+    {
+        m_pendingMessages.append(msg);
+        if (!m_suspended)
+            processPendingEvents();
+    }
+
+    void didClose(unsigned long unhandledBufferedAmount)
+    {
+        m_pendingClosed = true;
+        m_bufferedAmount = unhandledBufferedAmount;
+        if (!m_suspended)
+            processPendingEvents();
+    }
+
+    void suspend()
+    {
+        m_suspended = true;
+    }
+
+    void resume()
+    {
+        m_suspended = false;
+        processPendingEvents();
+    }
+
+protected:
+    ThreadableWebSocketChannelClientWrapper(WebSocketChannelClient* client)
+        : m_client(client)
+        , m_syncMethodDone(false)
+        , m_sent(false)
+        , m_bufferedAmount(0)
+        , m_suspended(false)
+        , m_pendingConnected(false)
+        , m_pendingClosed(false)
+    {
+    }
+
+    void processPendingEvents()
+    {
+        ASSERT(!m_suspended);
+        if (m_pendingConnected) {
+            m_pendingConnected = false;
+            if (m_client)
+                m_client->didConnect();
+        }
+
+        Vector<String> messages;
+        messages.swap(m_pendingMessages);
+        for (Vector<String>::const_iterator iter = messages.begin(); iter != messages.end(); ++iter) {
+            if (m_client)
+                m_client->didReceiveMessage(*iter);
+        }
+
+        if (m_pendingClosed) {
+            m_pendingClosed = false;
+            if (m_client)
+                m_client->didClose(m_bufferedAmount);
+        }
+    }
+
+    WebSocketChannelClient* m_client;
+    bool m_syncMethodDone;
+    bool m_sent;
+    unsigned long m_bufferedAmount;
+    bool m_suspended;
+    bool m_pendingConnected;
+    Vector<String> m_pendingMessages;
+    bool m_pendingClosed;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(WEB_SOCKETS)
+
+#endif // ThreadableWebSocketChannelClientWrapper_h