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Don't call PrepareForResume on threads that aren't going to get a chance to run this time around. 

llvm-svn: 108312
This commit is contained in:
Jim Ingham 2010-07-14 02:27:20 +00:00
parent 9d790c5d12
commit a3241c1bf5
1 changed files with 34 additions and 5 deletions
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39
lldb/source/Target/ThreadList.cpp
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@ -314,15 +314,44 @@ ThreadList::WillResume ()
m_process->UpdateThreadListIfNeeded();
collection::iterator pos, end = m_threads.end();
// Give all the threads a last chance to set up their state before we
// negotiate who is actually going to get a chance to run...
for (pos = m_threads.begin(); pos != end; ++pos)
(*pos)->SetupForResume ();
// See if any thread wants to run stopping others. If it does, then we won't
// setup the other threads for resume, since they aren't going to get a chance
// to run. This is necessary because the SetupForResume might add "StopOthers"
// plans which would then get to be part of the who-gets-to-run negotiation, but
// they're coming in after the fact, and the threads that are already set up should
// take priority.
bool wants_solo_run = false;
for (pos = m_threads.begin(); pos != end; ++pos)
{
if ((*pos)->GetResumeState() != eStateSuspended &&
(*pos)->GetCurrentPlan()->StopOthers())
{
wants_solo_run = true;
break;
}
}
// Give all the threads that are likely to run a last chance to set up their state before we
// negotiate who is actually going to get a chance to run...
// Don't set to resume suspended threads, and if any thread wanted to stop others, only
// call setup on the threads that request StopOthers...
for (pos = m_threads.begin(); pos != end; ++pos)
{
if ((*pos)->GetResumeState() != eStateSuspended
&& (!wants_solo_run || (*pos)->GetCurrentPlan()->StopOthers()))
{
(*pos)->SetupForResume ();
}
}
// Now go through the threads and see if any thread wants to run just itself.
// if so then pick one and run it.
ThreadList run_me_only_list (m_process);
run_me_only_list.SetStopID(m_process->GetStopID());