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/*
* \file ocsd_gen_elem_list.cpp
* \brief OpenCSD : List of Generic trace elements for output.
*
* \copyright Copyright (c) 2016, ARM Limited. All Rights Reserved.
*/
/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. Neither the name of the copyright holder 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 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.
*/
#include "common/ocsd_gen_elem_list.h"
OcsdGenElemList::OcsdGenElemList()
{
m_firstElemIdx=0;
m_numUsed=0;
m_numPend=0;
m_elemArraySize = 0;
m_sendIf = 0;
m_CSID = 0;
m_pElemArray = 0;
}
OcsdGenElemList::~OcsdGenElemList()
{
for(int i = 0; i<m_elemArraySize; i++)
{
delete m_pElemArray[i].pElem;
}
delete [] m_pElemArray;
m_pElemArray = 0;
}
void OcsdGenElemList::reset()
{
m_firstElemIdx=0;
m_numUsed=0;
m_numPend=0;
}
OcsdTraceElement *OcsdGenElemList::getNextElem(const ocsd_trc_index_t trc_pkt_idx)
{
OcsdTraceElement *pElem = 0;
if(getNumElem() == m_elemArraySize) // all in use
growArray();
if(m_pElemArray != 0)
{
m_numUsed++;
int idx = getAdjustedIdx(m_firstElemIdx + m_numUsed - 1);
pElem = m_pElemArray[idx].pElem;
m_pElemArray[idx].trc_pkt_idx = trc_pkt_idx;
}
return pElem;
}
const ocsd_gen_trc_elem_t OcsdGenElemList::getElemType(const int entryN) const
{
ocsd_gen_trc_elem_t elem_type = OCSD_GEN_TRC_ELEM_UNKNOWN;
if(entryN < getNumElem())
{
int idx = getAdjustedIdx(m_firstElemIdx + entryN);
elem_type = m_pElemArray[idx].pElem->getType();
}
return elem_type;
}
ocsd_datapath_resp_t OcsdGenElemList::sendElements()
{
ocsd_datapath_resp_t resp = OCSD_RESP_CONT;
if((m_elemArraySize == 0) || (m_sendIf == 0))
return OCSD_RESP_FATAL_NOT_INIT;
if(!m_sendIf->hasAttachedAndEnabled())
return OCSD_RESP_FATAL_NOT_INIT;
while(elemToSend() && OCSD_DATA_RESP_IS_CONT(resp))
{
resp = m_sendIf->first()->TraceElemIn(m_pElemArray[m_firstElemIdx].trc_pkt_idx, m_CSID, *(m_pElemArray[m_firstElemIdx].pElem));
m_firstElemIdx++;
if(m_firstElemIdx >= m_elemArraySize)
m_firstElemIdx = 0;
m_numUsed--;
}
return resp;
}
// this function will enlarge the array, and create extra element objects.
// existing objects will be moved to the front of the array
// called if all elements are in use. (sets indexes accordingly)
void OcsdGenElemList::growArray()
{
elemPtr_t *p_new_array = 0;
int increment;
if(m_elemArraySize == 0)
// starting from scratch...
increment = 8;
else
increment = m_elemArraySize / 2; // grow by 50%
p_new_array = new (std::nothrow) elemPtr_t[m_elemArraySize+increment];
if(p_new_array != 0)
{
// fill the last increment elements with new objects
for(int i=0; i < increment; i++)
{
p_new_array[m_elemArraySize+i].pElem = new (std::nothrow) OcsdTraceElement();
}
// copy the existing objects from the old array to the start of the new one
// and adjust the indices.
if(m_elemArraySize > 0)
{
int inIdx = m_firstElemIdx;
for(int i = 0; i < m_elemArraySize; i++)
{
p_new_array[i].pElem = m_pElemArray[inIdx].pElem;
p_new_array[i].trc_pkt_idx = m_pElemArray[inIdx].trc_pkt_idx;
inIdx++;
if(inIdx >= m_elemArraySize)
inIdx = 0;
}
}
// delete the old pointer array.
delete [] m_pElemArray;
m_elemArraySize += increment;
}
else
m_elemArraySize = 0;
// update the internal array pointers to the new array
if(m_firstElemIdx >= 0)
m_firstElemIdx = 0;
m_pElemArray = p_new_array;
}
/* End of File ocsd_gen_elem_list.cpp */
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