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Bfs::visitParallel check for deleted vertex 

Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry 2022-01-21 11:10:44 -07:00
parent 16f3f94b5b
commit d8f75706f4
1 changed files with 8 additions and 4 deletions
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12
search/Bfs.cc
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@ -181,8 +181,10 @@ BfsIterator::visitParallel(Level to_level,
size_t vertex_count = level_vertices.size(); size_t vertex_count = level_vertices.size();
if (vertex_count < thread_count) { if (vertex_count < thread_count) {
for (Vertex *vertex : level_vertices) { for (Vertex *vertex : level_vertices) {
vertex->setBfsInQueue(bfs_index_, false); if (vertex) {
visitor->visit(vertex); vertex->setBfsInQueue(bfs_index_, false);
visitor->visit(vertex);
}
} }
} }
else { else {
@ -194,8 +196,10 @@ BfsIterator::visitParallel(Level to_level,
dispatch_queue_->dispatch( [=](int) { dispatch_queue_->dispatch( [=](int) {
for (size_t i = from; i < to; i++) { for (size_t i = from; i < to; i++) {
Vertex *vertex = level_vertices[i]; Vertex *vertex = level_vertices[i];
vertex->setBfsInQueue(bfs_index_, false); if (vertex) {
visitors[k]->visit(vertex); vertex->setBfsInQueue(bfs_index_, false);
visitors[k]->visit(vertex);
}
} }
}); });
from = to; from = to;