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

Signed-off-by: Mac Mason <mac@kingseye.net>
cartographer-project · Jan 20, 2021 · 018dded · 018dded
1 parent 802e9f1
commit 018dded
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/cartographer/common/thread_pool.cc b/cartographer/common/thread_pool.cc
@@ -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(); });