lldb/tools/debugserver/source/DNBThreadResumeActions.cpp

   1 //===-- DNBThreadResumeActions.cpp ------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 //  Created by Greg Clayton on 03/13/2010
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "DNBThreadResumeActions.h"
  14
  15 DNBThreadResumeActions::DNBThreadResumeActions()
  16     : m_actions(), m_signal_handled() {}
  17
  18 DNBThreadResumeActions::DNBThreadResumeActions(
  19     const DNBThreadResumeAction *actions, size_t num_actions)
  20     : m_actions(), m_signal_handled() {
  21   if (actions && num_actions) {
  22     m_actions.assign(actions, actions + num_actions);
  23     m_signal_handled.assign(num_actions, false);
  24   }
  25 }
  26
  27 DNBThreadResumeActions::DNBThreadResumeActions(nub_state_t default_action,
  28                                                int signal)
  29     : m_actions(), m_signal_handled() {
  30   SetDefaultThreadActionIfNeeded(default_action, signal);
  31 }
  32
  33 void DNBThreadResumeActions::Append(const DNBThreadResumeAction &action) {
  34   m_actions.push_back(action);
  35   m_signal_handled.push_back(false);
  36 }
  37
  38 void DNBThreadResumeActions::AppendAction(nub_thread_t tid, nub_state_t state,
  39                                           int signal, nub_addr_t addr) {
  40   DNBThreadResumeAction action = {tid, state, signal, addr};
  41   Append(action);
  42 }
  43
  44 const DNBThreadResumeAction *
  45 DNBThreadResumeActions::GetActionForThread(nub_thread_t tid,
  46                                            bool default_ok) const {
  47   const size_t num_actions = m_actions.size();
  48   for (size_t i = 0; i < num_actions; ++i) {
  49     if (m_actions[i].tid == tid)
  50       return &m_actions[i];
  51   }
  52   if (default_ok && tid != INVALID_NUB_THREAD)
  53     return GetActionForThread(INVALID_NUB_THREAD, false);
  54   return NULL;
  55 }
  56
  57 size_t DNBThreadResumeActions::NumActionsWithState(nub_state_t state) const {
  58   size_t count = 0;
  59   const size_t num_actions = m_actions.size();
  60   for (size_t i = 0; i < num_actions; ++i) {
  61     if (m_actions[i].state == state)
  62       ++count;
  63   }
  64   return count;
  65 }
  66
  67 bool DNBThreadResumeActions::SetDefaultThreadActionIfNeeded(nub_state_t action,
  68                                                             int signal) {
  69   if (GetActionForThread(INVALID_NUB_THREAD, true) == NULL) {
  70     // There isn't a default action so we do need to set it.
  71     DNBThreadResumeAction default_action = {INVALID_NUB_THREAD, action, signal,
  72                                             INVALID_NUB_ADDRESS};
  73     m_actions.push_back(default_action);
  74     m_signal_handled.push_back(false);
  75     return true; // Return true as we did add the default action
  76   }
  77   return false;
  78 }
  79
  80 void DNBThreadResumeActions::SetSignalHandledForThread(nub_thread_t tid) const {
  81   if (tid != INVALID_NUB_THREAD) {
  82     const size_t num_actions = m_actions.size();
  83     for (size_t i = 0; i < num_actions; ++i) {
  84       if (m_actions[i].tid == tid)
  85         m_signal_handled[i] = true;
  86     }
  87   }
  88 }