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Attempting to fix a TBB crash

release/4.3a0
Richard Roberts 2013-09-10 15:45:12 +00:00
parent a8d1072a02
commit 22dc80e4ff
1 changed files with 5 additions and 2 deletions
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7
gtsam/base/treeTraversal-inst.h
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@ -107,9 +107,12 @@ namespace gtsam {
tbb::task_list childTasks; tbb::task_list childTasks;
BOOST_FOREACH(const boost::shared_ptr<NODE>& child, node->children) BOOST_FOREACH(const boost::shared_ptr<NODE>& child, node->children)
{ {
// Process child in a subtask // Process child in a subtask. Important: Run visitorPre before calling
// allocate_child so that if visitorPre throws an exception, we will not have
// allocated an extra child, this causes a TBB error.
const DATA childData = visitorPre(child, myData);
childTasks.push_back(*new(allocate_child()) childTasks.push_back(*new(allocate_child())
PreOrderTask(child, visitorPre(child, myData), visitorPre, visitorPost, PreOrderTask(child, childData, visitorPre, visitorPost,
problemSizeThreshold, overThreshold)); problemSizeThreshold, overThreshold));
} }