diff --git a/examples/mobilenet_subgraph/thread_pool.h b/examples/mobilenet_subgraph/thread_pool.h
--- /dev/null
@@ -0,0 +1,77 @@
+/******************************************************************************
+ * Copyright (c) 2019 Texas Instruments Incorporated - http://www.ti.com/
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Texas Instruments Incorporated nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#pragma once
+
+#include <vector>
+#include <mutex>
+#include <condition_variable>
+#include <thread>
+
+using namespace std;
+
+namespace tidl {
+
+#define TIDL_MAX_NUM_THREADS 32
+
+typedef void(*UserFunc)(void *user_data);
+
+class ThPool {
+ public:
+ ThPool(int num_threads, UserFunc user_func);
+ ~ThPool();
+ // returns th_id that can be used for Wait()
+ int RunAsync(void* user_data);
+ void* Wait(int th_id);
+
+ // Run by threaded function
+ bool Stop() { return stop_m; }
+ void RunUserFunc(int th_id);
+ void WaitForWork(int th_id);
+ void NotifyCompletion(int th_id);
+
+ private:
+
+ int num_threads_m;
+ UserFunc user_func_m;
+ bool stop_m;
+ vector<thread> pool_m;
+ mutex mutex_pool_m;
+ condition_variable cv_pool_m;
+ // bit vector for availability, up to 32 threads, 1: avail, 0: not avail
+ int32_t pool_state_m;
+
+ vector<mutex> v_mutex_th_m;
+ vector<condition_variable> v_cv_th_work_m;
+ vector<condition_variable> v_cv_th_completion_m;
+
+ vector<void *> v_user_data_m;
+ vector<void *> v_completion_data_m;
+};
+
+} // namespace tidl