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CHECK that ThreadPool is given a positive num_threads (#1800) 

Signed-off-by: Mac Mason <mac@kingseye.net>
master
Mac Mason 2021-01-20 01:37:10 -08:00 committed by GitHub
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cartographer/common/thread_pool.cc
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@ -37,6 +37,7 @@ void ThreadPoolInterface::SetThreadPool(Task* task) {
}
ThreadPool::ThreadPool(int num_threads) {
CHECK_GT(num_threads, 0) << "ThreadPool requires a positive num_threads!";
absl::MutexLock locker(&mutex_);
for (int i = 0; i != num_threads; ++i) {
pool_.emplace_back([this]() { ThreadPool::DoWork(); });