libplctag never stops after disconnect / reconnect (AB CLX) about libplctag HOT 3 OPEN

diff --git a/session.c b/session.c
index 3c36271..60dc163 100644
--- a/session.c
+++ b/session.c
@@ -71,7 +71,7 @@
 #define SOCKET_WAIT_TIMEOUT_MS (20)
 #define SESSION_IDLE_WAIT_TIME (100)
 
-
+volatile int ab_session_terminating = 0;
 
 static ab_session_p session_create_unsafe(const char *host, const char *path, plc_type_t plc_type, int *use_connected_msg, int connection_group_id);
 static int session_init(ab_session_p session);
@@ -141,6 +141,8 @@ void session_teardown()
 {
     pdebug(DEBUG_INFO, "Starting.");
 
+    ab_session_terminating = 1;
+
     if(sessions && session_mutex) {
         pdebug(DEBUG_DETAIL, "Waiting for sessions to terminate.");
 
@@ -173,6 +175,8 @@ void session_teardown()
         session_mutex = NULL;
     }
 
+    ab_session_terminating = 0;
+
     pdebug(DEBUG_INFO, "Done.");
 }
 
@@ -1031,7 +1035,7 @@ THREAD_FUNC(session_handler)
 
     pdebug(DEBUG_INFO, "Starting thread for session %p", session);
 
-    while(!session->terminating) {
+    while(!session->terminating && !ab_session_terminating) {
         /* how long should we wait if nothing wakes us? */
         wait_until_time = time_ms() + SESSION_IDLE_WAIT_TIME;
 
@@ -1321,6 +1325,9 @@ THREAD_FUNC(session_handler)
         purge_aborted_requests_unsafe(session);
     }
 
+    if (ab_session_terminating)
+        session_destroy(session);
+
     THREAD_RETURN(0);
 }