WebSocket implementation in WebKit

WebCore/platform/network/SocketStreamHandleBase.cpp

+/*
+ * 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:
+ * 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 COMPUTER, 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 COMPUTER, 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 "SocketStreamHandleBase.h"
+
+#include "SocketStreamHandleClient.h"
+
+namespace WebCore {
+
+SocketStreamHandleBase::SocketStreamHandleBase()
+        : m_client(NULL)
+        , m_state(Connecting)
+{
+}
+
+SocketStreamState SocketStreamHandleBase::state() const
+{
+    return m_state;
+}
+
+bool SocketStreamHandleBase::send(const char* buf, int size)
+{
+    if (m_state == Connecting)
+        return false;
+    if (!m_buffer.isEmpty()) {
+        m_buffer.append(buf, size);
+        return true;
+    }
+    int num_written = 0;
+    if (m_state == Open)
+        num_written = platformSend(buf, size);
+    if (num_written < 0) {
+        return false;
+    }
+    if (num_written < size)
+        m_buffer.append(buf + num_written, size - num_written);
+    return true;
+}
+
+void SocketStreamHandleBase::close()
+{
+    platformClose();
+    m_state = Closed;
+}
+
+SocketStreamHandleClient* SocketStreamHandleBase::client() const
+{
+    return m_client;
+}
+
+void SocketStreamHandleBase::setClient(SocketStreamHandleClient* client)
+{
+    m_client = client;
+}
+
+}  // namespace WebCore