aboutsummaryrefslogtreecommitdiff
path: root/tools/lldb-mi/MICmdCmdThread.cpp
blob: 823a3748248ccf9313f36494153b35de9341de27 (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
197
198
199
200
201
//===-- MICmdCmdThread.cpp --------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// Overview:    CMICmdCmdThreadInfo     implementation.

// Third Party Headers:
#include "lldb/API/SBBreakpointLocation.h"
#include "lldb/API/SBThread.h"

// In-house headers:
#include "MICmdCmdThread.h"
#include "MICmnMIResultRecord.h"
#include "MICmnMIValueConst.h"
#include "MICmnLLDBDebugger.h"
#include "MICmnLLDBDebugSessionInfo.h"
#include "MICmdArgValNumber.h"

//++ ------------------------------------------------------------------------------------
// Details: CMICmdCmdThreadInfo constructor.
// Type:    Method.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
CMICmdCmdThreadInfo::CMICmdCmdThreadInfo()
    : m_bSingleThread(false)
    , m_bThreadInvalid(true)
    , m_constStrArgNamedThreadId("thread-id")
{
    // Command factory matches this name with that received from the stdin stream
    m_strMiCmd = "thread-info";

    // Required by the CMICmdFactory when registering *this command
    m_pSelfCreatorFn = &CMICmdCmdThreadInfo::CreateSelf;
}

//++ ------------------------------------------------------------------------------------
// Details: CMICmdCmdThreadInfo destructor.
// Type:    Overrideable.
// Args:    None.
// Return:  None.
// Throws:  None.
//--
CMICmdCmdThreadInfo::~CMICmdCmdThreadInfo()
{
    m_vecMIValueTuple.clear();
}

//++ ------------------------------------------------------------------------------------
// Details: The invoker requires this function. The parses the command line options
//          arguments to extract values for each of those arguments.
// Type:    Overridden.
// Args:    None.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdCmdThreadInfo::ParseArgs()
{
    m_setCmdArgs.Add(new CMICmdArgValNumber(m_constStrArgNamedThreadId, false, true));
    return ParseValidateCmdOptions();
}

//++ ------------------------------------------------------------------------------------
// Details: The invoker requires this function. The command does work in this function.
//          The command is likely to communicate with the LLDB SBDebugger in here.
// Type:    Overridden.
// Args:    None.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdCmdThreadInfo::Execute()
{
    CMICMDBASE_GETOPTION(pArgThreadId, Number, m_constStrArgNamedThreadId);
    MIuint nThreadId = 0;
    if (pArgThreadId->GetFound() && pArgThreadId->GetValid())
    {
        m_bSingleThread = true;
        nThreadId = static_cast<MIuint>(pArgThreadId->GetValue());
    }

    CMICmnLLDBDebugSessionInfo &rSessionInfo(CMICmnLLDBDebugSessionInfo::Instance());
    lldb::SBProcess sbProcess = rSessionInfo.GetProcess();
    lldb::SBThread thread = sbProcess.GetSelectedThread();

    if (m_bSingleThread)
    {
        thread = sbProcess.GetThreadByIndexID(nThreadId);
        m_bThreadInvalid = !thread.IsValid();
        if (m_bThreadInvalid)
            return MIstatus::success;

        CMICmnMIValueTuple miTuple;
        if (!rSessionInfo.MIResponseFormThreadInfo(m_cmdData, thread, CMICmnLLDBDebugSessionInfo::eThreadInfoFormat_AllFrames, miTuple))
            return MIstatus::failure;

        m_miValueTupleThread = miTuple;

        return MIstatus::success;
    }

    // Multiple threads
    m_vecMIValueTuple.clear();
    const MIuint nThreads = sbProcess.GetNumThreads();
    for (MIuint i = 0; i < nThreads; i++)
    {
        lldb::SBThread thread = sbProcess.GetThreadAtIndex(i);
        if (thread.IsValid())
        {
            CMICmnMIValueTuple miTuple;
            if (!rSessionInfo.MIResponseFormThreadInfo(m_cmdData, thread, CMICmnLLDBDebugSessionInfo::eThreadInfoFormat_AllFrames, miTuple))
                return MIstatus::failure;

            m_vecMIValueTuple.push_back(miTuple);
        }
    }

    return MIstatus::success;
}

//++ ------------------------------------------------------------------------------------
// Details: The invoker requires this function. The command prepares a MI Record Result
//          for the work carried out in the Execute().
// Type:    Overridden.
// Args:    None.
// Return:  MIstatus::success - Functional succeeded.
//          MIstatus::failure - Functional failed.
// Throws:  None.
//--
bool
CMICmdCmdThreadInfo::Acknowledge()
{
    if (m_bSingleThread)
    {
        if (m_bThreadInvalid)
        {
            const CMICmnMIValueConst miValueConst("invalid thread id");
            const CMICmnMIValueResult miValueResult("msg", miValueConst);
            const CMICmnMIResultRecord miRecordResult(m_cmdData.strMiCmdToken, CMICmnMIResultRecord::eResultClass_Error, miValueResult);
            m_miResultRecord = miRecordResult;
            return MIstatus::success;
        }

        // MI print "%s^done,threads=[{id=\"%d\",target-id=\"%s\",frame={},state=\"%s\"}]
        const CMICmnMIValueList miValueList(m_miValueTupleThread);
        const CMICmnMIValueResult miValueResult("threads", miValueList);
        const CMICmnMIResultRecord miRecordResult(m_cmdData.strMiCmdToken, CMICmnMIResultRecord::eResultClass_Done, miValueResult);
        m_miResultRecord = miRecordResult;
        return MIstatus::success;
    }

    // Build up a list of thread information from tuples
    VecMIValueTuple_t::const_iterator it = m_vecMIValueTuple.begin();
    if (it == m_vecMIValueTuple.end())
    {
        const CMICmnMIValueConst miValueConst("[]");
        const CMICmnMIValueResult miValueResult("threads", miValueConst);
        const CMICmnMIResultRecord miRecordResult(m_cmdData.strMiCmdToken, CMICmnMIResultRecord::eResultClass_Done, miValueResult);
        m_miResultRecord = miRecordResult;
        return MIstatus::success;
    }
    CMICmnMIValueList miValueList(*it);
    ++it;
    while (it != m_vecMIValueTuple.end())
    {
        const CMICmnMIValueTuple &rTuple(*it);
        miValueList.Add(rTuple);

        // Next
        ++it;
    }

    const CMICmnMIValueResult miValueResult("threads", miValueList);
    const CMICmnMIResultRecord miRecordResult(m_cmdData.strMiCmdToken, CMICmnMIResultRecord::eResultClass_Done, miValueResult);
    m_miResultRecord = miRecordResult;

    return MIstatus::success;
}

//++ ------------------------------------------------------------------------------------
// Details: Required by the CMICmdFactory when registering *this command. The factory
//          calls this function to create an instance of *this command.
// Type:    Static method.
// Args:    None.
// Return:  CMICmdBase * - Pointer to a new command.
// Throws:  None.
//--
CMICmdBase *
CMICmdCmdThreadInfo::CreateSelf()
{
    return new CMICmdCmdThreadInfo();
}