Fix: add missing synchronization point for before app test case

[lttng-tools.git] / tests / regression / ust / nprocesses / test_nprocesses

diff --git a/tests/regression/ust/nprocesses/test_nprocesses b/tests/regression/ust/nprocesses/test_nprocesses
index ca0f9d416cba74e08eafecf04d598d867474fa46..8eed95fcaa911f8f437f63d26a536302f3155b1d 100755 (executable)
--- a/tests/regression/ust/nprocesses/test_nprocesses
+++ b/tests/regression/ust/nprocesses/test_nprocesses
@@ -46,15 +46,16 @@ start_lttng_sessiond
 
 # Start tests. Each is an infinite tracing loop.
 
+file_sync_after_first=$(mktemp -u)
+file_sync_before_last=$(mktemp -u)
+
 diag "Starting $NUM_PROCESS test applications"
 for i in `seq 1 $NUM_PROCESS`
 do
-       $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1 &
+       $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT ${file_sync_after_first} ${file_sync_before_last} >/dev/null 2>&1 &
        APPS_PID="${APPS_PID} ${!}"
 done
 
-#FIXME: racy missing synchronization
-
 diag "Waiting for applications to be registered to sessiond"
 
 reg_app_count=0
@@ -72,13 +73,15 @@ create_lttng_session $SESSION_NAME $TRACE_PATH
 enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
 start_lttng_tracing $SESSION_NAME
 
+touch ${file_sync_before_last}
+
 # We don't validate whether the applications have traced here, rather
 # just that they registered to sessiond (above).
 
 stop_lttng_tracing $SESSION_NAME
 destroy_lttng_session $SESSION_NAME
 
-#FIXME/TODO: add validation after fixing racy synchroniaation
+#TODO: add trace validation.
 
 rm -rf $TRACE_PATH
 
@@ -90,4 +93,7 @@ done
 APPS_PID=
 pass "Stopped all spawned applications"
 
+rm -f ${file_sync_after_first}
+rm -f ${file_sync_before_last}
+
 stop_lttng_sessiond