reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    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
//===-- ThreadSpec.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
//
//===----------------------------------------------------------------------===//

#include "lldb/Target/ThreadSpec.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/StructuredData.h"

using namespace lldb;
using namespace lldb_private;

const char *ThreadSpec::g_option_names[static_cast<uint32_t>(
    ThreadSpec::OptionNames::LastOptionName)]{"Index", "ID", "Name",
                                              "QueueName"};

ThreadSpec::ThreadSpec()
    : m_index(UINT32_MAX), m_tid(LLDB_INVALID_THREAD_ID), m_name(),
      m_queue_name() {}

std::unique_ptr<ThreadSpec> ThreadSpec::CreateFromStructuredData(
    const StructuredData::Dictionary &spec_dict, Status &error) {
  uint32_t index = UINT32_MAX;
  lldb::tid_t tid = LLDB_INVALID_THREAD_ID;
  llvm::StringRef name;
  llvm::StringRef queue_name;

  std::unique_ptr<ThreadSpec> thread_spec_up(new ThreadSpec());
  bool success = spec_dict.GetValueForKeyAsInteger(
      GetKey(OptionNames::ThreadIndex), index);
  if (success)
    thread_spec_up->SetIndex(index);

  success =
      spec_dict.GetValueForKeyAsInteger(GetKey(OptionNames::ThreadID), tid);
  if (success)
    thread_spec_up->SetTID(tid);

  success =
      spec_dict.GetValueForKeyAsString(GetKey(OptionNames::ThreadName), name);
  if (success)
    thread_spec_up->SetName(name);

  success = spec_dict.GetValueForKeyAsString(GetKey(OptionNames::ThreadName),
                                             queue_name);
  if (success)
    thread_spec_up->SetQueueName(queue_name);

  return thread_spec_up;
}

StructuredData::ObjectSP ThreadSpec::SerializeToStructuredData() {
  StructuredData::DictionarySP data_dict_sp(new StructuredData::Dictionary());

  if (m_index != UINT32_MAX)
    data_dict_sp->AddIntegerItem(GetKey(OptionNames::ThreadIndex), m_index);
  if (m_tid != LLDB_INVALID_THREAD_ID)
    data_dict_sp->AddIntegerItem(GetKey(OptionNames::ThreadID), m_tid);
  if (!m_name.empty())
    data_dict_sp->AddStringItem(GetKey(OptionNames::ThreadName), m_name);
  if (!m_queue_name.empty())
    data_dict_sp->AddStringItem(GetKey(OptionNames::QueueName), m_queue_name);

  return data_dict_sp;
}

const char *ThreadSpec::GetName() const {
  return m_name.empty() ? nullptr : m_name.c_str();
}

const char *ThreadSpec::GetQueueName() const {
  return m_queue_name.empty() ? nullptr : m_queue_name.c_str();
}

bool ThreadSpec::TIDMatches(Thread &thread) const {
  if (m_tid == LLDB_INVALID_THREAD_ID)
    return true;

  lldb::tid_t thread_id = thread.GetID();
  return TIDMatches(thread_id);
}

bool ThreadSpec::IndexMatches(Thread &thread) const {
  if (m_index == UINT32_MAX)
    return true;
  uint32_t index = thread.GetIndexID();
  return IndexMatches(index);
}

bool ThreadSpec::NameMatches(Thread &thread) const {
  if (m_name.empty())
    return true;

  const char *name = thread.GetName();
  return NameMatches(name);
}

bool ThreadSpec::QueueNameMatches(Thread &thread) const {
  if (m_queue_name.empty())
    return true;

  const char *queue_name = thread.GetQueueName();
  return QueueNameMatches(queue_name);
}

bool ThreadSpec::ThreadPassesBasicTests(Thread &thread) const {
  if (!HasSpecification())
    return true;

  if (!TIDMatches(thread))
    return false;

  if (!IndexMatches(thread))
    return false;

  if (!NameMatches(thread))
    return false;

  if (!QueueNameMatches(thread))
    return false;

  return true;
}

bool ThreadSpec::HasSpecification() const {
  return (m_index != UINT32_MAX || m_tid != LLDB_INVALID_THREAD_ID ||
          !m_name.empty() || !m_queue_name.empty());
}

void ThreadSpec::GetDescription(Stream *s, lldb::DescriptionLevel level) const {
  if (!HasSpecification()) {
    if (level == eDescriptionLevelBrief) {
      s->PutCString("thread spec: no ");
    }
  } else {
    if (level == eDescriptionLevelBrief) {
      s->PutCString("thread spec: yes ");
    } else {
      if (GetTID() != LLDB_INVALID_THREAD_ID)
        s->Printf("tid: 0x%" PRIx64 " ", GetTID());

      if (GetIndex() != UINT32_MAX)
        s->Printf("index: %d ", GetIndex());

      const char *name = GetName();
      if (name)
        s->Printf("thread name: \"%s\" ", name);

      const char *queue_name = GetQueueName();
      if (queue_name)
        s->Printf("queue name: \"%s\" ", queue_name);
    }
  }
}