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//===-- MICmdCmdThread.cpp --------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// Overview: CMICmdCmdThreadInfo implementation.
// Third Party Headers:
#include "lldb/API/SBBreakpointLocation.h"
#include "lldb/API/SBThread.h"
// In-house headers:
#include "MICmdArgValNumber.h"
#include "MICmdCmdThread.h"
#include "MICmnLLDBDebugSessionInfo.h"
#include "MICmnLLDBDebugger.h"
#include "MICmnMIResultRecord.h"
#include "MICmnMIValueConst.h"
//++
//------------------------------------------------------------------------------------
// Details: CMICmdCmdThreadInfo constructor.
// Type: Method.
// Args: None.
// Return: None.
// Throws: None.
//--
CMICmdCmdThreadInfo::CMICmdCmdThreadInfo()
: m_bSingleThread(false), m_bThreadInvalid(true),
m_constStrArgNamedThreadId("thread-id"), m_bHasCurrentThread(false) {
// 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);
}
}
// -thread-info with multiple threads ends with the current thread id if any
if (thread.IsValid()) {
const CMIUtilString strId(CMIUtilString::Format("%d", thread.GetIndexID()));
CMICmnMIValueConst miValueCurrThreadId(strId);
m_miValueCurrThreadId = miValueCurrThreadId;
m_bHasCurrentThread = true;
}
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;
}
CMICmnMIValueResult miValueResult("threads", miValueList);
if (m_bHasCurrentThread) {
CMIUtilString strCurrThreadId = "current-thread-id";
miValueResult.Add(strCurrThreadId, m_miValueCurrThreadId);
}
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();
}
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