aboutsummaryrefslogtreecommitdiffstats
path: root/decoder/source/ocsd_gen_elem_stack.cpp
blob: bb758427a9b8034175a2f011bc16349357d3b16b (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
/*
* \file       ocsd_gen_elem_stack.cpp
* \brief      OpenCSD : List of Generic trace elements for output.
*
* \copyright  Copyright (c) 2020, 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_stack.h"

OcsdGenElemStack::OcsdGenElemStack() :
    m_pElemArray(0),
    m_elemArraySize(0),
    m_elem_to_send(0),
    m_curr_elem_idx(0),
    m_send_elem_idx(0),
    m_CSID(0),
    m_is_init(false)
{

}

OcsdGenElemStack::~OcsdGenElemStack()
{
    for (int i = 0; i<m_elemArraySize; i++)
    {
        delete m_pElemArray[i].pElem;
    }
    delete [] m_pElemArray;
    m_pElemArray = 0;
}

ocsd_err_t OcsdGenElemStack::addElem(const ocsd_trc_index_t trc_pkt_idx)
{
    ocsd_err_t err = OCSD_OK;

    if (((m_curr_elem_idx + 1) == m_elemArraySize) || !m_pElemArray)
    {
        err = growArray();
        if (err)
            return err;
    }

    // if there is a least one element then copy and increment
    // otherwise we are at base of stack.
    if (m_elem_to_send)
    {
        copyPersistentData(m_curr_elem_idx, m_curr_elem_idx + 1);
        m_curr_elem_idx++;
    }
    m_pElemArray[m_curr_elem_idx].trc_pkt_idx = trc_pkt_idx;
    m_elem_to_send++;
    return err;
}

ocsd_err_t OcsdGenElemStack::addElemType(const ocsd_trc_index_t trc_pkt_idx, ocsd_gen_trc_elem_t elem_type)
{
    ocsd_err_t err = addElem(trc_pkt_idx);
    if (!err)
        getCurrElem().setType(elem_type);
    return err;
}

ocsd_err_t OcsdGenElemStack::resetElemStack()
{
    ocsd_err_t err = OCSD_OK;
    if (!m_pElemArray)
    {
        err = growArray();
        if (err)
            return err;
    }

    if (!isInit())
        return OCSD_ERR_NOT_INIT;

    resetIndexes();
    return err;
}

void OcsdGenElemStack::resetIndexes()
{
    // last time there was more than one element on stack
    if (m_curr_elem_idx > 0)
        copyPersistentData(m_curr_elem_idx, 0);

    // indexes to bottom of stack, nothing in use at present
    m_curr_elem_idx = 0;
    m_send_elem_idx = 0;
    m_elem_to_send = 0;
}

ocsd_datapath_resp_t OcsdGenElemStack::sendElements()
{
    ocsd_datapath_resp_t resp = OCSD_RESP_CONT;
    if (!isInit())
        return OCSD_RESP_FATAL_NOT_INIT;

    while (m_elem_to_send && OCSD_DATA_RESP_IS_CONT(resp))
    {
        resp = m_sendIf->first()->TraceElemIn(m_pElemArray[m_send_elem_idx].trc_pkt_idx, m_CSID, *(m_pElemArray[m_send_elem_idx].pElem));
        m_send_elem_idx++;
        m_elem_to_send--;
    }

    // clear the indexes if we are done.
    if (!m_elem_to_send)
        resetIndexes();
    return resp;
}

ocsd_err_t OcsdGenElemStack::growArray()
{
    elemPtr_t *p_new_array = 0;
    const int increment = 4;
    
    p_new_array = new (std::nothrow) elemPtr_t[m_elemArraySize + increment];

    if (p_new_array != 0)
    {
        OcsdTraceElement *pElem = 0;

        // fill the last increment elements with new objects
        for (int i = 0; i < increment; i++)
        {
            pElem = new (std::nothrow) OcsdTraceElement();
            if (!pElem)
                return OCSD_ERR_MEM;
            pElem->init();
            p_new_array[m_elemArraySize + i].pElem = pElem;
        }

        // copy the existing objects from the old array to the start of the new one
        if (m_elemArraySize > 0)
        {            
            for (int i = 0; i < m_elemArraySize; i++)
            {
                p_new_array[i].pElem = m_pElemArray[i].pElem;
                p_new_array[i].trc_pkt_idx = m_pElemArray[i].trc_pkt_idx;
            }
        }

        // delete the old pointer array.
        delete[] m_pElemArray;
        m_elemArraySize += increment;
        m_pElemArray = p_new_array;
    }
    else
        return OCSD_ERR_MEM;

    return OCSD_OK;
}

void OcsdGenElemStack::copyPersistentData(int src, int dst)
{
    m_pElemArray[dst].pElem->copyPersistentData(*(m_pElemArray[src].pElem));
}

const bool OcsdGenElemStack::isInit()
{
    if (!m_is_init) {
        if (m_elemArraySize && m_pElemArray && m_sendIf)
            m_is_init = true;
    }
    return m_is_init;
}


/* End of File ocsd_gen_elem_stack.cpp */