1 /* 2 * \file trc_raw_buffer.h 3 * \brief OpenCSD : Trace raw data byte buffer 4 * 5 * \copyright Copyright (c) 2019, ARM Limited. All Rights Reserved. 6 */ 7 8 /* 9 * Redistribution and use in source and binary forms, with or without modification, 10 * are permitted provided that the following conditions are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright notice, 13 * this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright notice, 16 * this list of conditions and the following disclaimer in the documentation 17 * and/or other materials provided with the distribution. 18 * 19 * 3. Neither the name of the copyright holder nor the names of its contributors 20 * may be used to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 29 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 30 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #ifndef ARM_TRC_RAW_BUFFER_H_INCLUDED 36 #define ARM_TRC_RAW_BUFFER_H_INCLUDED 37 38 #include <vector> 39 40 class TraceRawBuffer 41 { 42 public: 43 TraceRawBuffer() : 44 m_bufSize(0), 45 m_bufProcessed(0), 46 m_pBuffer(0), 47 pkt(0) 48 {}; 49 ~TraceRawBuffer() {}; 50 51 // init the buffer 52 void init(const uint32_t size, const uint8_t *rawtrace, std::vector<uint8_t> *out_packet); 53 void copyByteToPkt(); // move a byte to the packet buffer 54 uint8_t peekNextByte(); // value of next byte in buffer. 55 56 bool empty() { return m_bufProcessed == m_bufSize; }; 57 // bytes processed. 58 uint32_t processed() { return m_bufProcessed; }; 59 // buffer size; 60 uint32_t size() { return m_bufSize; } 61 62 private: 63 uint32_t m_bufSize; 64 uint32_t m_bufProcessed; 65 const uint8_t *m_pBuffer; 66 std::vector<uint8_t> *pkt; 67 68 }; 69 70 // init the buffer 71 inline void TraceRawBuffer::init(const uint32_t size, const uint8_t *rawtrace, std::vector<uint8_t> *out_packet) 72 { 73 m_bufSize = size; 74 m_bufProcessed = 0; 75 m_pBuffer = rawtrace; 76 pkt = out_packet; 77 } 78 79 inline void TraceRawBuffer::copyByteToPkt() 80 { 81 if (!empty()) { 82 pkt->push_back(m_pBuffer[m_bufProcessed]); 83 m_bufProcessed++; 84 } 85 } 86 87 inline uint8_t TraceRawBuffer::peekNextByte() 88 { 89 uint8_t val = 0; 90 if (!empty()) 91 val = m_pBuffer[m_bufProcessed]; 92 return val; 93 } 94 95 #endif // ARM_TRC_RAW_BUFFER_H_INCLUDED 96 97