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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All rights reserved.
      3  * Copyright (C) 2009, 2011, 2012 Google Inc.  All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  *     * Redistributions of source code must retain the above copyright
     10  * notice, this list of conditions and the following disclaimer.
     11  *     * Redistributions in binary form must reproduce the above
     12  * copyright notice, this list of conditions and the following disclaimer
     13  * in the documentation and/or other materials provided with the
     14  * distribution.
     15  *     * Neither the name of Google Inc. nor the names of its
     16  * contributors may be used to endorse or promote products derived from
     17  * this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef SocketStreamHandle_h
     33 #define SocketStreamHandle_h
     34 
     35 #include "weborigin/KURL.h"
     36 #include "wtf/PassRefPtr.h"
     37 #include "wtf/RefCounted.h"
     38 #include "wtf/StreamBuffer.h"
     39 
     40 namespace WebCore {
     41 
     42 class SocketStreamHandleClient;
     43 class SocketStreamHandleInternal;
     44 
     45 class SocketStreamHandle : public RefCounted<SocketStreamHandle> {
     46 public:
     47     enum SocketStreamState { Connecting, Open, Closing, Closed };
     48 
     49     static PassRefPtr<SocketStreamHandle> create(const KURL& url, SocketStreamHandleClient* client) { return adoptRef(new SocketStreamHandle(url, client)); }
     50 
     51     virtual ~SocketStreamHandle();
     52     SocketStreamState state() const;
     53 
     54     bool send(const char* data, int length);
     55     void close(); // Disconnect after all data in buffer are sent.
     56     void disconnect();
     57     size_t bufferedAmount() const { return m_buffer.size(); }
     58 
     59     SocketStreamHandleClient* client() const { return m_client; }
     60     void setClient(SocketStreamHandleClient*);
     61 
     62 private:
     63     SocketStreamHandle(const KURL&, SocketStreamHandleClient*);
     64 
     65     bool sendPendingData();
     66 
     67     int sendInternal(const char* data, int length);
     68     void closeInternal();
     69 
     70     KURL m_url;
     71     SocketStreamHandleClient* m_client;
     72     StreamBuffer<char, 1024 * 1024> m_buffer;
     73     SocketStreamState m_state;
     74 
     75     friend class SocketStreamHandleInternal;
     76     OwnPtr<SocketStreamHandleInternal> m_internal;
     77 };
     78 
     79 } // namespace WebCore
     80 
     81 #endif  // SocketStreamHandle_h
     82