110 lines
4.2 KiB
C++
110 lines
4.2 KiB
C++
/*
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* \file ocsd_gen_elem_stack.h
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* \brief OpenCSD : Generic element output stack.
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*
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* \copyright Copyright (c) 2020, ARM Limited. All Rights Reserved.
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*/
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/*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "trc_gen_elem.h"
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#include "comp_attach_pt_t.h"
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#include "interfaces/trc_gen_elem_in_i.h"
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/* element stack to handle cases where a trace element can generate multiple output packets
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maintains the "current" element, which might be sent independently of this stack, and also
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ensures that persistent data in the output elements is maintained between elements.
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*/
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class OcsdGenElemStack
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{
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public:
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OcsdGenElemStack();
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~OcsdGenElemStack();
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void initSendIf(componentAttachPt<ITrcGenElemIn> *pGenElemIf);
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void initCSID(const uint8_t CSID) { m_CSID = CSID; };
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OcsdTraceElement &getCurrElem(); //!< get the current element.
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ocsd_err_t resetElemStack(); //!< set pointers to base of stack
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ocsd_err_t addElem(const ocsd_trc_index_t trc_pkt_idx); //!< add elem to stack and set current.
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void setCurrElemIdx(const ocsd_trc_index_t trc_pkt_idx); //!< packet index for this element
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ocsd_err_t addElemType(const ocsd_trc_index_t trc_pkt_idx, ocsd_gen_trc_elem_t elem_type);
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ocsd_datapath_resp_t sendElements(); //!< send elements on the stack
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const int numElemToSend() const;
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private:
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typedef struct _elemPtr {
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OcsdTraceElement *pElem; //!< pointer to the listed trace element
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ocsd_trc_index_t trc_pkt_idx; //!< packet index in the trace stream
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} elemPtr_t;
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const bool isInit(); //!< check correctly initialised.
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ocsd_err_t growArray();
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void copyPersistentData(int src, int dst); //!< copy across persistent state data between elements
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void resetIndexes(); //!< clear down all indexes - reset or send complete.
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elemPtr_t *m_pElemArray; //!< an array of pointers to elements.
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int m_elemArraySize; //!< number of element pointers in the array
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int m_elem_to_send; //!< number of live elements in the stack - init to 1.
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int m_curr_elem_idx; //!< index into the element array.
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int m_send_elem_idx; //!< next element to send.
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//!< send packet info
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uint8_t m_CSID;
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componentAttachPt<ITrcGenElemIn> *m_sendIf; //!< element send interface.
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bool m_is_init;
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};
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inline const int OcsdGenElemStack::numElemToSend() const
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{
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return m_elem_to_send;
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}
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inline void OcsdGenElemStack::initSendIf(componentAttachPt<ITrcGenElemIn> *pGenElemIf)
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{
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m_sendIf = pGenElemIf;
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}
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inline void OcsdGenElemStack::setCurrElemIdx(const ocsd_trc_index_t trc_pkt_idx)
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{
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m_pElemArray[m_curr_elem_idx].trc_pkt_idx = trc_pkt_idx;
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}
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inline OcsdTraceElement &OcsdGenElemStack::getCurrElem()
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{
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return *(m_pElemArray[m_curr_elem_idx].pElem);
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}
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/* End of File ocsd_gen_elem_stack.h */
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