Type mismatch corrections (Windows 64 bits)

This patch removes the type mismatch warnings revealed by Windows 64
compiler.  Wherever necessary, used size_t type for size related data.

Change-Id: Ie045ce95940cd83fe8d681168ac9526fc6028d43
Signed-off-by: Patrick Benavoli <patrick.benavoli@intel.com>
diff --git a/remote-processor/Message.h b/remote-processor/Message.h
index 2e52c09..3f5e847 100644
--- a/remote-processor/Message.h
+++ b/remote-processor/Message.h
@@ -64,25 +64,61 @@
 protected:
     // Msg Id
     uint8_t getMsgId() const;
-    // Data
-    void writeData(const void* pvData, uint32_t uiSize);
-    void readData(void* pvData, uint32_t uiSize);
+
+    /** Write raw data to the message
+    *
+    * @param[in] pvData pointer to the data array
+    * @param[in] uiSize array size in bytes
+    */
+    void writeData(const void* pvData, size_t uiSize);
+
+    /** Read raw data from the message
+    *
+    * @param[out] pvData pointer to the data array
+    * @param[in] uiSize array size in bytes
+    */
+    void readData(void* pvData, size_t uiSize);
+
+    /** Write string to the message
+    *
+    * @param[in] strData the string to write
+    */
     void writeString(const std::string& strData);
+
+    /** Write string to the message
+    *
+    * @param[out] strData the string to read to
+    */
     void readString(std::string& strData);
-    uint32_t getStringSize(const std::string& strData) const;
-    // Remaining data size
-    uint32_t getRemainingDataSize() const;
+
+    /** @return string length plus room to store its length
+    *
+    * @param[in] strData the string to get the size from
+    */
+    size_t getStringSize(const std::string& strData) const;
+
+    /** @return remaining data size to read or to write depending on the context
+    * (request: write, answer: read)
+    */
+    size_t getRemainingDataSize() const;
 private:
     CMessage(const CMessage&);
     CMessage& operator=(const CMessage&);
-    // Data allocation
-    void allocateData(uint32_t uiDataSize);
+
+    /** Allocate room to store the message
+    *
+    * @param[int] uiDataSize the szie to allocate in bytes
+    */
+    void allocateData(size_t uiDataSize);
     // Fill data to send
     virtual void fillDataToSend() = 0;
     // Collect received data
     virtual void collectReceivedData() = 0;
-    // Size
-    virtual uint32_t getDataSize() const = 0;
+
+    /** @return size of the transaction data in bytes
+    */
+    virtual size_t getDataSize() const = 0;
+
     // Checksum
     uint8_t computeChecksum() const;
 
@@ -90,8 +126,8 @@
     uint8_t _ucMsgId;
     // Data
     uint8_t* _pucData;
-    // Data size
-    uint32_t _uiDataSize;
-    // Read/Write Index
-    uint32_t _uiIndex;
+    /** Size of the allocated memory to store the message */
+    size_t _uiDataSize;
+    /** Read/Write Index used to iterate across the message data */
+    size_t _uiIndex;
 };