1 /*
2 * \file ocsd_gen_elem_stack.cpp
3 * \brief OpenCSD : List of Generic trace elements for output.
4 *
5 * \copyright Copyright (c) 2020, 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_stack.h"
37
OcsdGenElemStack()38 OcsdGenElemStack::OcsdGenElemStack() :
39 m_pElemArray(0),
40 m_elemArraySize(0),
41 m_elem_to_send(0),
42 m_curr_elem_idx(0),
43 m_send_elem_idx(0),
44 m_CSID(0),
45 m_is_init(false)
46 {
47
48 }
49
~OcsdGenElemStack()50 OcsdGenElemStack::~OcsdGenElemStack()
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
addElem(const ocsd_trc_index_t trc_pkt_idx)60 ocsd_err_t OcsdGenElemStack::addElem(const ocsd_trc_index_t trc_pkt_idx)
61 {
62 ocsd_err_t err = OCSD_OK;
63
64 if (((m_curr_elem_idx + 1) == m_elemArraySize) || !m_pElemArray)
65 {
66 err = growArray();
67 if (err)
68 return err;
69 }
70
71 // if there is a least one element then copy and increment
72 // otherwise we are at base of stack.
73 if (m_elem_to_send)
74 {
75 copyPersistentData(m_curr_elem_idx, m_curr_elem_idx + 1);
76 m_curr_elem_idx++;
77 }
78 m_pElemArray[m_curr_elem_idx].trc_pkt_idx = trc_pkt_idx;
79 m_elem_to_send++;
80 return err;
81 }
82
addElemType(const ocsd_trc_index_t trc_pkt_idx,ocsd_gen_trc_elem_t elem_type)83 ocsd_err_t OcsdGenElemStack::addElemType(const ocsd_trc_index_t trc_pkt_idx, ocsd_gen_trc_elem_t elem_type)
84 {
85 ocsd_err_t err = addElem(trc_pkt_idx);
86 if (!err)
87 getCurrElem().setType(elem_type);
88 return err;
89 }
90
resetElemStack()91 ocsd_err_t OcsdGenElemStack::resetElemStack()
92 {
93 ocsd_err_t err = OCSD_OK;
94 if (!m_pElemArray)
95 {
96 err = growArray();
97 if (err)
98 return err;
99 }
100
101 if (!isInit())
102 return OCSD_ERR_NOT_INIT;
103
104 resetIndexes();
105 return err;
106 }
107
resetIndexes()108 void OcsdGenElemStack::resetIndexes()
109 {
110 // last time there was more than one element on stack
111 if (m_curr_elem_idx > 0)
112 copyPersistentData(m_curr_elem_idx, 0);
113
114 // indexes to bottom of stack, nothing in use at present
115 m_curr_elem_idx = 0;
116 m_send_elem_idx = 0;
117 m_elem_to_send = 0;
118 }
119
sendElements()120 ocsd_datapath_resp_t OcsdGenElemStack::sendElements()
121 {
122 ocsd_datapath_resp_t resp = OCSD_RESP_CONT;
123 if (!isInit())
124 return OCSD_RESP_FATAL_NOT_INIT;
125
126 while (m_elem_to_send && OCSD_DATA_RESP_IS_CONT(resp))
127 {
128 resp = m_sendIf->first()->TraceElemIn(m_pElemArray[m_send_elem_idx].trc_pkt_idx, m_CSID, *(m_pElemArray[m_send_elem_idx].pElem));
129 m_send_elem_idx++;
130 m_elem_to_send--;
131 }
132
133 // clear the indexes if we are done.
134 if (!m_elem_to_send)
135 resetIndexes();
136 return resp;
137 }
138
growArray()139 ocsd_err_t OcsdGenElemStack::growArray()
140 {
141 elemPtr_t *p_new_array = 0;
142 const int increment = 4;
143
144 p_new_array = new (std::nothrow) elemPtr_t[m_elemArraySize + increment];
145
146 if (p_new_array != 0)
147 {
148 OcsdTraceElement *pElem = 0;
149
150 // fill the last increment elements with new objects
151 for (int i = 0; i < increment; i++)
152 {
153 pElem = new (std::nothrow) OcsdTraceElement();
154 if (!pElem)
155 return OCSD_ERR_MEM;
156 pElem->init();
157 p_new_array[m_elemArraySize + i].pElem = pElem;
158 }
159
160 // copy the existing objects from the old array to the start of the new one
161 if (m_elemArraySize > 0)
162 {
163 for (int i = 0; i < m_elemArraySize; i++)
164 {
165 p_new_array[i].pElem = m_pElemArray[i].pElem;
166 p_new_array[i].trc_pkt_idx = m_pElemArray[i].trc_pkt_idx;
167 }
168 }
169
170 // delete the old pointer array.
171 delete[] m_pElemArray;
172 m_elemArraySize += increment;
173 m_pElemArray = p_new_array;
174 }
175 else
176 return OCSD_ERR_MEM;
177
178 return OCSD_OK;
179 }
180
copyPersistentData(int src,int dst)181 void OcsdGenElemStack::copyPersistentData(int src, int dst)
182 {
183 m_pElemArray[dst].pElem->copyPersistentData(*(m_pElemArray[src].pElem));
184 }
185
isInit()186 const bool OcsdGenElemStack::isInit()
187 {
188 if (!m_is_init) {
189 if (m_elemArraySize && m_pElemArray && m_sendIf)
190 m_is_init = true;
191 }
192 return m_is_init;
193 }
194
195
196 /* End of File ocsd_gen_elem_stack.cpp */
197