thread-pool: re-work termination semantics to avoid problems.

We want a pre-spun-up, shared thread-pool that doesn't get its
workers created & joined frequently.

Change-Id: I29081e3a3e3849ca30e63fd080ee3315d99cbe8d

1 files changed, 6 insertions, 1 deletions

diff --git a/include/comphelper/threadpool.hxx b/include/comphelper/threadpool.hxx
index ae103f1164f1..2e5171902f55 100644
--- a/include/comphelper/threadpool.hxx
+++ b/include/comphelper/threadpool.hxx
@@ -39,14 +39,19 @@ public:
                 ThreadPool( sal_Int32 nWorkers );
     virtual    ~ThreadPool();
 
+    /// push a new task onto the work queue
     void        pushTask( ThreadTask *pTask /* takes ownership */ );
+
+    /// wait until all queued tasks are completed
     void        waitUntilEmpty();
-    void        waitUntilWorkersDone();
 
 private:
     class ThreadWorker;
     friend class ThreadWorker;
 
+    /// wait until all work is completed, then join all threads
+    void        waitAndCleanupWorkers();
+
     ThreadTask *waitForWork( osl::Condition &rNewWork );
     ThreadTask *popWork();