Squashed 'third_party/seasocks/' content from commit 016dc60

Change-Id: I195fa5bfd0c0e3cc66fbbefcc7b5170bafcf7a36
git-subtree-dir: third_party/seasocks
git-subtree-split: 016dc60b247e0d1d563aea6d22a9075e6884ab9f
diff --git a/src/main/c/internal/HybiPacketDecoder.h b/src/main/c/internal/HybiPacketDecoder.h
new file mode 100644
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+++ b/src/main/c/internal/HybiPacketDecoder.h
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+// Copyright (c) 2013, Matt Godbolt
+// 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.
+// 
+// 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 HOLDER 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.
+
+#pragma once
+
+#include "seasocks/Logger.h"
+
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace seasocks {
+
+class HybiPacketDecoder {
+    Logger& _logger;
+    const std::vector<uint8_t>& _buffer;
+    size_t _messageStart;
+public:
+    HybiPacketDecoder(Logger& logger, const std::vector<uint8_t>& buffer);
+
+    enum {
+        OPCODE_CONT = 0x0,  // Deprecated in latest hybi spec, here anyway.
+        OPCODE_TEXT = 0x1,
+        OPCODE_BINARY = 0x2,
+        OPCODE_CLOSE = 0x8,
+        OPCODE_PING = 0x9,
+        OPCODE_PONG = 0xA,
+    };
+
+    enum MessageState {
+        NoMessage,
+        TextMessage,
+        BinaryMessage,
+        Error,
+        Ping,
+        Close
+    };
+    MessageState decodeNextMessage(std::vector<uint8_t>& messageOut);
+
+    size_t numBytesDecoded() const;
+};
+
+}