diff -r 7fdc9a71d314 -r 8ad140f3dd41 hti/PC_Tools/HTIGateway/HtiGateway/src/HtiMessage.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hti/PC_Tools/HTIGateway/HtiGateway/src/HtiMessage.cpp Wed Oct 13 16:17:58 2010 +0300 @@ -0,0 +1,228 @@ +/* +* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: +* This file contains implementation of HtiMessage class. +*/ + +#include "htimessage.h" +#include "crc16.h" +#include +#include +#include + +static const BYTE HTI_ERR_CMD = 0xFF; +static const int HTI_MIN_ERR_MSG_SIZE = 10; +static const int HTI_MAX_ERR_MSG_SIZE = 0xFF; + + +HtiMessage::HtiMessage(DWORD serviceId, void* body, DWORD len, BYTE priority) +{ + m_ErrDescr = NULL; + m_Size = len + KMsgHeaderMinSize; + m_Message = new BYTE[m_Size]; + //_RPT1(_CRT_WARN,"HtiMessage::HtiMessage %x\n", body); + //_RPT2(_CRT_WARN,"HtiMessage::HtiMessage m_Message %x <%d>\n", m_Message, m_Size); + memset(m_Message, 0, KMsgHeaderMinSize); + memcpy(m_Message + KMsgHeaderMinSize, body, len); + *((DWORD*)(m_Message + KMsgServiceNameOffset)) = serviceId; + *((DWORD*)(m_Message + KMsgBodySizeOffset)) = len; + m_Message[KMsgVersionOffset] = KDefaultVersion; + m_Message[KMsgPriorityOffset] = priority; + //CRC + *((WORD*)(m_Message + KMsgCrcOffset)) = CRC16CCITT(m_Message, KMsgHeaderMinSize-2); +} + +HtiMessage::HtiMessage(void* message, DWORD len) +{ + m_ErrDescr = NULL; + BYTE* srcMsg = (BYTE*)message; + int extSize = srcMsg[KMsgExtSizeOffset]; + int headerSize = MinHeaderSize() + extSize; + + m_Size = *((DWORD*)(srcMsg + KMsgBodySizeOffset)); + m_Size += headerSize; + + //allocate header space + m_Message = new BYTE[m_Size]; + //_RPT1(_CRT_WARN,"HtiMessage::HtiMessage %x \n", message); + //_RPT2(_CRT_WARN,"HtiMessage::HtiMessage m_Message %x <%d>\n", m_Message, m_Size); + + //copy message + m_MessageReminderSize = m_Size; + AddToBody( message, len); + //memcpy( m_Message, message, min(m_MessageReminderSize, len) ); + //m_MessageReminderSize -= min(m_MessageReminderSize, len); +} + +DWORD HtiMessage::AddToBody(void* data, DWORD len) +{ + //_RPT1(_CRT_WARN,"HtiMessage::AddToBody %x\n", data); + DWORD copyLen = min(m_MessageReminderSize, len); + memcpy( m_Message + m_Size - m_MessageReminderSize, data, copyLen); + m_MessageReminderSize -= copyLen; + return copyLen; + +/* + if ( m_MessageReminderSize <= len) //last part + { + memcpy(m_Message + m_Size - m_MessageReminderSize, data, m_MessageReminderSize); + DWORD copyLen = m_MessageReminderSize; + m_MessageReminderSize = 0; + return copyLen; + } + else //in the middle + { + memcpy(m_Message + m_Size - m_MessageReminderSize, data, len); + m_MessageReminderSize -= len; + } + + return len; +*/ +} + +HtiMessage::~HtiMessage() +{ + //_RPT1(_CRT_WARN,"~HtiMessage err %x\n", m_ErrDescr); + //_RPT1(_CRT_WARN,"~HtiMessage msg %x\n", m_Message); + delete[] m_ErrDescr; + delete[] m_Message; +} + +/** +* Returns whole HTI message including header +*/ +void* HtiMessage::HtiData() +{ + return m_Message; +} + +DWORD HtiMessage::HtiDataSize() +{ + return m_Size; +} + +DWORD HtiMessage::GetBodySize() +{ + return *((DWORD*)(m_Message + KMsgBodySizeOffset)); +} + +DWORD HtiMessage::GetExtSize() +{ + return m_Message[KMsgExtSizeOffset]; +} + +int HtiMessage::GetBodyStart() +{ + return GetExtSize()+MinHeaderSize(); +} + +void* HtiMessage::GetBody() +{ + return m_Message+GetBodyStart(); +} + +DWORD HtiMessage::GetServiceUID() +{ + return *((DWORD*)(m_Message + KMsgServiceNameOffset)); +} + +bool HtiMessage::CheckValidHtiHeader(void* header) +{ + //check CRC16 + WORD headerCrc16 = *((WORD*)((BYTE*)header+KMsgCrcOffset)); + WORD calcCrc16 = CRC16CCITT(header, KMsgCrcOffset); + + return headerCrc16 == calcCrc16; +} + +DWORD HtiMessage::ExtractMsgSizeFromHeader(void* header) +{ + return *((DWORD*)(((BYTE*)header)+KMsgBodySizeOffset)); +} + +int HtiMessage::MinHeaderSize() +{ + return KMsgHeaderMinSize; +} + +HtiMessage* HtiMessage::CreateErrorMessage(int errorCode, const char* errDescr) +{ + BYTE* msg = new BYTE[ HTI_MAX_ERR_MSG_SIZE ]; + memset(msg, 0, HTI_MAX_ERR_MSG_SIZE ); + msg[0] = HTI_ERR_CMD; + *((DWORD*)(msg + HtiServiceErrCodeOffset)) = errorCode; + *((DWORD*)(msg + HtiErrServiceUidOffset)) = HTI_SYSTEM_SERVICE_UID; + int descrLen = min(strlen( errDescr ), HTI_MAX_ERR_MSG_SIZE - HtiErrDescrOffset ); + memcpy( msg + HtiErrDescrOffset, + errDescr, + descrLen + ); + HtiMessage* newMsg = new HtiMessage(HTI_SYSTEM_SERVICE_UID, + msg, + descrLen + HtiErrDescrOffset + MinHeaderSize()); + return newMsg; +} + +bool HtiMessage::IsErrorMessage() +{ + if ( m_Message ) + { + return GetServiceUID() == HTI_SYSTEM_SERVICE_UID && + m_Message[GetBodyStart()] == HTI_ERR_CMD && + GetBodySize()>= HTI_MIN_ERR_MSG_SIZE ; + } + return false; +} + +int HtiMessage::HtiErrorCode() +{ + if ( IsErrorMessage() ) + { + return m_Message[GetBodyStart()+HtiErrCodeOffset]; + } + return -1; +} +int HtiMessage::ServiceErrorCode() +{ + if ( IsErrorMessage() ) + { + return *((DWORD*)(m_Message + GetBodyStart() + HtiServiceErrCodeOffset)); + } + return -1; +} + +char* HtiMessage::ErrorDescription() +{ + if ( IsErrorMessage() ) + { + int desrLen = GetBodySize() - HtiErrDescrOffset; + m_ErrDescr = new char[desrLen+1]; + //_RPT2(_CRT_WARN,"HtiMessage::ErrorDescription %x <%d>\n", m_ErrDescr, desrLen+1); + memcpy( m_ErrDescr, + m_Message + GetBodyStart() + HtiErrDescrOffset, + desrLen ); + m_ErrDescr[desrLen] = 0; + return m_ErrDescr; + } + return NULL; +} + +int HtiMessage::ErrorServiceUid() +{ + if ( IsErrorMessage() ) + { + return *((DWORD*)(m_Message + GetBodyStart() + HtiErrServiceUidOffset)); + } + return -1; +} \ No newline at end of file