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+/*===========================================================================
+FILE:
+ ProtocolBuffer.h
+
+DESCRIPTION:
+ Generic protocol structures and affliated methods
+
+PUBLIC CLASSES AND METHODS:
+ sProtocolBuffer
+ Simple struct to represent a protocol buffer using a reference counted
+ (shared) buffer, this allows us to use in in several places without
+ copying it once in each place. A few base services are provided
+ but the main purpose is to provide a class to inherit off of for
+ specific protocols
+
+Copyright (c) 2011, Code Aurora Forum. 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 Code Aurora Forum 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.
+===========================================================================*/
+
+//---------------------------------------------------------------------------
+// Pragmas
+//---------------------------------------------------------------------------
+#pragma once
+
+//---------------------------------------------------------------------------
+// Include Files
+//---------------------------------------------------------------------------
+#include "SharedBuffer.h"
+#include "ProtocolEnum.h"
+
+static const tm EMPTY_TIME = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+
+/*=========================================================================*/
+// Struct sProtocolBuffer
+/*=========================================================================*/
+struct sProtocolBuffer
+{
+ public:
+ // Constructor (default)
+ sProtocolBuffer();
+
+ // Constructor (parameterized)
+ sProtocolBuffer( sSharedBuffer * pBuffer );
+
+ // Copy constructor
+ sProtocolBuffer( const sProtocolBuffer & copyThis );
+
+ // Assignment operator
+ sProtocolBuffer & operator = ( const sProtocolBuffer & copyThis );
+
+ // Destructor
+ virtual ~sProtocolBuffer();
+
+ // (Inline) Get buffer
+ const BYTE * GetBuffer() const
+ {
+ BYTE * pRet = 0;
+ if (IsValid() == true)
+ {
+ pRet = (BYTE *)mpData->GetBuffer();
+ }
+
+ return (const BYTE *)pRet;
+ };
+
+ // (Inline) Get buffer size
+ ULONG GetSize() const
+ {
+ ULONG size = 0;
+ if (IsValid() == true)
+ {
+ size = mpData->GetSize();
+ }
+
+ return size;
+ };
+
+ // (Inline) Return the protocol type
+ eProtocolType GetType() const
+ {
+ eProtocolType pt = ePROTOCOL_ENUM_BEGIN;
+ if (IsValid() == true)
+ {
+ pt = (eProtocolType)mpData->GetType();
+ }
+
+ return pt;
+ };
+
+ // (Inline) Return the shared buffer
+ sSharedBuffer * GetSharedBuffer() const
+ {
+ sSharedBuffer * pRet = 0;
+ if (IsValid() == true)
+ {
+ pRet = mpData;
+ }
+
+ return pRet;
+ };
+
+ // (Inline) Return the timestamp
+ tm GetTimestamp() const
+ {
+ tm ft = EMPTY_TIME;
+
+ if (IsValid() == true)
+ {
+ ft = mTimestamp;
+ }
+
+ return ft;
+ };
+
+ // (Inline) Is this buffer valid?
+ virtual bool IsValid() const
+ {
+ return mbValid;
+ };
+
+ protected:
+ // (Inline) Validate buffer
+ virtual bool Validate()
+ {
+ // Do we have a shared buffer and is it valid?
+ mbValid = (mpData != 0 && mpData->IsValid());
+ return mbValid;
+ };
+
+ /* Our data buffer */
+ sSharedBuffer * mpData;
+
+ /* Time buffer was created */
+ tm mTimestamp;
+
+ /* Has this buffer been validated? (NOTE: *NOT* set in base) */
+ bool mbValid;
+};