Fix crash in ThreadPool::Stop

fixes #8059

diff --git a/lib/base/threadpool.cpp b/lib/base/threadpool.cpp
index 2a814134fd9a106c78ace552845b6ccbb080081b..b39ad0d0624922dee4d4330e7e6d7958b8c331ba 100644 (file)
--- a/lib/base/threadpool.cpp
+++ b/lib/base/threadpool.cpp
@@ -60,7 +60,8 @@ void ThreadPool::Stop(void)
                m_MgmtCV.notify_all();
        }
 
-       m_MgmtThread.join();
+       if (m_MgmtThread.joinable())
+               m_MgmtThread.join();
 
        for (size_t i = 0; i < sizeof(m_Queues) / sizeof(m_Queues[0]); i++) {
                boost::mutex::scoped_lock lock(m_Queues[i].Mutex);