Issue 4507 - Improve csngen testing task (#4508)

Description:  Once the csngen testing task is created, it will not stop for 10 minutes
              even if you attempt to stop the server.  This is adding 10 minutes to
              the CI testing runs.

              Improved this task to check for the server shutdown, an moved the csngen
              test to the bottom of the file so it is executed last so it does not
              interfere with other tests

Fixes: #4507

Reviewed by: tbordaz(Thanks!)

dirsrvtests/tests/suites/replication/acceptance_test.py

@@ -621,6 +621,29 @@ def test_urp_trigger_substring_search(topo_m2):
     assert not found
 
 
+@pytest.mark.skipif(ds_is_older('1.4.4'), reason="Not implemented")
+def test_csngen_task(topo_m2):
+    """Test csn generator test
+
+    :id: b976849f-dbed-447e-91a7-c877d5d71fd0
+    :setup: MMR with 2 masters
+    :steps:
+        1. Create a csngen_test task
+        2. Check that debug messages "_csngen_gen_tester_main" are in errors logs
+    :expectedresults:
+        1. Should succeeds
+        2. Should succeeds
+    """
+    m1 = topo_m2.ms["master1"]
+    csngen_task = csngenTestTask(m1)
+    csngen_task.create(properties={
+        'ttl': '300'
+    })
+    time.sleep(10)
+    log.info('Check the error log contains strings showing csn generator is tested')
+    assert m1.searchErrorsLog("_csngen_gen_tester_main")
+
+
 if __name__ == '__main__':
     # Run isolated
     # -s for DEBUG mode

ldap/servers/slapd/csngen.c

@@ -463,7 +463,9 @@ csngen_test()
 
     rc = _csngen_start_test_threads(gen);
     if (rc == 0) {
-        DS_Sleep(PR_SecondsToInterval(TEST_TIME));
+        for (size_t i = 0; i < TEST_TIME && !slapi_is_shutting_down(); i++) {
+            DS_Sleep(PR_SecondsToInterval(1));
+        }
     }
 
     _csngen_stop_test_threads();
@@ -670,8 +672,8 @@ _csngen_adjust_local_time(CSNGen *gen, time_t cur_time)
 #define DEFAULT_THREAD_STACKSIZE 0
 
 #define GEN_TREAD_COUNT 20
-int s_thread_count;
-int s_must_exit;
+static int s_thread_count;
+static int s_must_exit;
 
 static int
 _csngen_start_test_threads(CSNGen *gen)
@@ -736,8 +738,8 @@ _csngen_stop_test_threads(void)
     s_must_exit = 1;
 
     while (s_thread_count > 0) {
-        /* sleep for 30 seconds */
-        DS_Sleep(PR_SecondsToInterval(20));
+        /* sleep for 5 seconds */
+        DS_Sleep(PR_SecondsToInterval(5));
     }
 }
 
@@ -752,7 +754,7 @@ _csngen_gen_tester_main(void *data)
 
     PR_ASSERT(gen);
 
-    while (!s_must_exit) {
+    while (!s_must_exit && !slapi_is_shutting_down()) {
         rc = csngen_new_csn(gen, &csn, PR_FALSE);
         if (rc != CSN_SUCCESS) {
             slapi_log_err(SLAPI_LOG_ERR, "_csngen_gen_tester_main",
@@ -764,7 +766,7 @@ _csngen_gen_tester_main(void *data)
         csn_free(&csn);
 
         /* sleep for 30 seconds */
-        DS_Sleep(PR_SecondsToInterval(10));
+        DS_Sleep(PR_SecondsToInterval(30));
     }
 
     PR_AtomicDecrement(&s_thread_count);
@@ -782,7 +784,7 @@ _csngen_remote_tester_main(void *data)
 
     PR_ASSERT(gen);
 
-    while (!s_must_exit) {
+    while (!s_must_exit && !slapi_is_shutting_down()) {
         rc = csngen_new_csn(gen, &csn, PR_FALSE);
         if (rc != CSN_SUCCESS) {
             slapi_log_err(SLAPI_LOG_ERR, "_csngen_remote_tester_main",
@@ -802,7 +804,7 @@ _csngen_remote_tester_main(void *data)
         csn_free(&csn);
 
         /* sleep for 30 seconds */
-        DS_Sleep(PR_SecondsToInterval(60));
+        DS_Sleep(PR_SecondsToInterval(30));
     }
 
     PR_AtomicDecrement(&s_thread_count);
@@ -816,15 +818,13 @@ _csngen_local_tester_main(void *data)
 
     PR_ASSERT(gen);
 
-
-    while (!s_must_exit) {
+    while (!s_must_exit && !slapi_is_shutting_down()) {
         /* sleep for 30 seconds */
-        DS_Sleep(PR_SecondsToInterval(60));
+        DS_Sleep(PR_SecondsToInterval(30));
 
         /*
          * g_sampled_time -= slapi_rand () % 100;
          */
-
         csngen_dump_state(gen);
     }