1 /*
2 * \file ocsd_gen_elem_list.cpp
3 * \brief OpenCSD : List of Generic trace elements for output.
4 *
5 * \copyright Copyright (c) 2016, ARM Limited. All Rights Reserved.
6 */
7
8
9 /*
10 * Redistribution and use in source and binary forms, with or without modification,
11 * are permitted provided that the following conditions are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright notice,
17 * this list of conditions and the following disclaimer in the documentation
18 * and/or other materials provided with the distribution.
19 *
20 * 3. Neither the name of the copyright holder nor the names of its contributors
21 * may be used to endorse or promote products derived from this software without
22 * specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 #include "common/ocsd_gen_elem_list.h"
37
OcsdGenElemList()38 OcsdGenElemList::OcsdGenElemList()
39 {
40 m_firstElemIdx=0;
41 m_numUsed=0;
42 m_numPend=0;
43
44 m_elemArraySize = 0;
45 m_sendIf = 0;
46 m_CSID = 0;
47 m_pElemArray = 0;
48 }
49
~OcsdGenElemList()50 OcsdGenElemList::~OcsdGenElemList()
51 {
52 for(int i = 0; i<m_elemArraySize; i++)
53 {
54 delete m_pElemArray[i].pElem;
55 }
56 delete [] m_pElemArray;
57 m_pElemArray = 0;
58 }
59
reset()60 void OcsdGenElemList::reset()
61 {
62 m_firstElemIdx=0;
63 m_numUsed=0;
64 m_numPend=0;
65 }
66
getNextElem(const ocsd_trc_index_t trc_pkt_idx)67 OcsdTraceElement *OcsdGenElemList::getNextElem(const ocsd_trc_index_t trc_pkt_idx)
68 {
69 OcsdTraceElement *pElem = 0;
70 if(getNumElem() == m_elemArraySize) // all in use
71 growArray();
72
73 if(m_pElemArray != 0)
74 {
75 m_numUsed++;
76 int idx = getAdjustedIdx(m_firstElemIdx + m_numUsed - 1);
77 pElem = m_pElemArray[idx].pElem;
78 m_pElemArray[idx].trc_pkt_idx = trc_pkt_idx;
79 }
80 return pElem;
81 }
82
getElemType(const int entryN) const83 const ocsd_gen_trc_elem_t OcsdGenElemList::getElemType(const int entryN) const
84 {
85 ocsd_gen_trc_elem_t elem_type = OCSD_GEN_TRC_ELEM_UNKNOWN;
86 if(entryN < getNumElem())
87 {
88 int idx = getAdjustedIdx(m_firstElemIdx + entryN);
89 elem_type = m_pElemArray[idx].pElem->getType();
90 }
91 return elem_type;
92 }
93
sendElements()94 ocsd_datapath_resp_t OcsdGenElemList::sendElements()
95 {
96 ocsd_datapath_resp_t resp = OCSD_RESP_CONT;
97
98 if((m_elemArraySize == 0) || (m_sendIf == 0))
99 return OCSD_RESP_FATAL_NOT_INIT;
100
101 if(!m_sendIf->hasAttachedAndEnabled())
102 return OCSD_RESP_FATAL_NOT_INIT;
103
104 while(elemToSend() && OCSD_DATA_RESP_IS_CONT(resp))
105 {
106 resp = m_sendIf->first()->TraceElemIn(m_pElemArray[m_firstElemIdx].trc_pkt_idx, m_CSID, *(m_pElemArray[m_firstElemIdx].pElem));
107 m_firstElemIdx++;
108 if(m_firstElemIdx >= m_elemArraySize)
109 m_firstElemIdx = 0;
110 m_numUsed--;
111 }
112 return resp;
113 }
114
115 // this function will enlarge the array, and create extra element objects.
116 // existing objects will be moved to the front of the array
117 // called if all elements are in use. (sets indexes accordingly)
growArray()118 void OcsdGenElemList::growArray()
119 {
120 elemPtr_t *p_new_array = 0;
121
122 int increment;
123 if(m_elemArraySize == 0)
124 // starting from scratch...
125 increment = 8;
126 else
127 increment = m_elemArraySize / 2; // grow by 50%
128
129
130 p_new_array = new (std::nothrow) elemPtr_t[m_elemArraySize+increment];
131
132 if(p_new_array != 0)
133 {
134 // fill the last increment elements with new objects
135 for(int i=0; i < increment; i++)
136 {
137 p_new_array[m_elemArraySize+i].pElem = new (std::nothrow) OcsdTraceElement();
138 }
139
140 // copy the existing objects from the old array to the start of the new one
141 // and adjust the indices.
142 if(m_elemArraySize > 0)
143 {
144 int inIdx = m_firstElemIdx;
145 for(int i = 0; i < m_elemArraySize; i++)
146 {
147 p_new_array[i].pElem = m_pElemArray[inIdx].pElem;
148 p_new_array[i].trc_pkt_idx = m_pElemArray[inIdx].trc_pkt_idx;
149 inIdx++;
150 if(inIdx >= m_elemArraySize)
151 inIdx = 0;
152 }
153 }
154
155 // delete the old pointer array.
156 delete [] m_pElemArray;
157 m_elemArraySize += increment;
158 }
159 else
160 m_elemArraySize = 0;
161
162 // update the internal array pointers to the new array
163 if(m_firstElemIdx >= 0)
164 m_firstElemIdx = 0;
165 m_pElemArray = p_new_array;
166 }
167
168 /* End of File ocsd_gen_elem_list.cpp */
169