Esempio n. 1
0
void
ProcessPOSIX::SendMessage(const ProcessMessage &message)
{
    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));

    Mutex::Locker lock(m_message_mutex);

    Mutex::Locker thread_lock(m_thread_list.GetMutex());

    POSIXThread *thread = static_cast<POSIXThread*>(
        m_thread_list.FindThreadByID(message.GetTID(), false).get());

    switch (message.GetKind())
    {
    case ProcessMessage::eInvalidMessage:
        return;

    case ProcessMessage::eAttachMessage:
        SetPrivateState(eStateStopped);
        return;

    case ProcessMessage::eLimboMessage:
        assert(thread);
        thread->SetState(eStateStopped);
        if (message.GetTID() == GetID())
        {
            m_exit_status = message.GetExitStatus();
            if (m_exit_now)
            {
                SetPrivateState(eStateExited);
                m_monitor->Detach(GetID());
            }
            else
            {
                StopAllThreads(message.GetTID());
                SetPrivateState(eStateStopped);
            }
        }
        else
        {
            StopAllThreads(message.GetTID());
            SetPrivateState(eStateStopped);
        }
        break;

    case ProcessMessage::eExitMessage:
        if (thread != nullptr)
            thread->SetState(eStateExited);
        else
        {
            if (log)
                log->Warning ("ProcessPOSIX::%s eExitMessage for TID %" PRIu64 " failed to find a thread to mark as eStateExited, ignoring", __FUNCTION__, message.GetTID ());
        }

        // FIXME: I'm not sure we need to do this.
        if (message.GetTID() == GetID())
        {
            SetExitStatus(message.GetExitStatus(), NULL);
        }
        else if (!IsAThreadRunning())
            SetPrivateState(eStateStopped);
        break;

    case ProcessMessage::eSignalMessage:
    case ProcessMessage::eSignalDeliveredMessage:
        if (message.GetSignal() == SIGSTOP &&
            AddThreadForInitialStopIfNeeded(message.GetTID()))
            return;
        // Intentional fall-through

    case ProcessMessage::eBreakpointMessage:
    case ProcessMessage::eTraceMessage:
    case ProcessMessage::eWatchpointMessage:
    case ProcessMessage::eCrashMessage:
        assert(thread);
        thread->SetState(eStateStopped);
        StopAllThreads(message.GetTID());
        SetPrivateState(eStateStopped);
        break;

    case ProcessMessage::eNewThreadMessage:
    {
        lldb::tid_t  new_tid = message.GetChildTID();
        if (WaitingForInitialStop(new_tid))
        {
            m_monitor->WaitForInitialTIDStop(new_tid);
        }
        assert(thread);
        thread->SetState(eStateStopped);
        StopAllThreads(message.GetTID());
        SetPrivateState(eStateStopped);
        break;
    }

    case ProcessMessage::eExecMessage:
    {
        assert(thread);
        thread->SetState(eStateStopped);
        StopAllThreads(message.GetTID());
        SetPrivateState(eStateStopped);
        break;
    }
    }


    m_message_queue.push(message);
}
void
ProcessPOSIX::SendMessage(const ProcessMessage &message)
{
    Mutex::Locker lock(m_message_mutex);

    Mutex::Locker thread_lock(m_thread_list.GetMutex());

    POSIXThread *thread = static_cast<POSIXThread*>(
        m_thread_list.FindThreadByID(message.GetTID(), false).get());

    switch (message.GetKind())
    {
    case ProcessMessage::eInvalidMessage:
        return;

    case ProcessMessage::eLimboMessage:
        assert(thread);
        thread->SetState(eStateStopped);
        if (message.GetTID() == GetID())
        {
            m_exit_status = message.GetExitStatus();
            if (m_exit_now)
            {
                SetPrivateState(eStateExited);
                m_monitor->Detach(GetID());
            }
            else
            {
                StopAllThreads(message.GetTID());
                SetPrivateState(eStateStopped);
            }
        }
        else
        {
            StopAllThreads(message.GetTID());
            SetPrivateState(eStateStopped);
        }
        break;

    case ProcessMessage::eExitMessage:
        assert(thread);
        thread->SetState(eStateExited);
        // FIXME: I'm not sure we need to do this.
        if (message.GetTID() == GetID())
        {
            m_exit_status = message.GetExitStatus();
            SetExitStatus(m_exit_status, NULL);
        }
        else if (!IsAThreadRunning())
            SetPrivateState(eStateStopped);
        break;

        assert(thread);
        thread->SetState(eStateStopped);
        StopAllThreads(message.GetTID());
        SetPrivateState(eStateStopped);
        break;

    case ProcessMessage::eSignalMessage:
    case ProcessMessage::eSignalDeliveredMessage:
        if (message.GetSignal() == SIGSTOP &&
            AddThreadForInitialStopIfNeeded(message.GetTID()))
            return;
        // Intentional fall-through

    case ProcessMessage::eBreakpointMessage:
    case ProcessMessage::eTraceMessage:
    case ProcessMessage::eWatchpointMessage:
    case ProcessMessage::eNewThreadMessage:
    case ProcessMessage::eCrashMessage:
        assert(thread);
        thread->SetState(eStateStopped);
        StopAllThreads(message.GetTID());
        SetPrivateState(eStateStopped);
        break;
    }

    m_message_queue.push(message);
}