INTERNAL_FUNC int emcore_get_active_task_by_thread_id(thread_t input_thread_id, email_active_task_t **output_active_task);\r
\r
INTERNAL_FUNC void* emcore_default_async_task_handler(void *intput_param);\r
-INTERNAL_FUNC void* emcore_default_sync_task_handler(void *intput_param);\r
+INTERNAL_FUNC int emcore_default_sync_task_handler(void *intput_param);\r
\r
INTERNAL_FUNC int emcore_start_task_manager_loop();\r
INTERNAL_FUNC int emcore_stop_task_manager_loop();\r