Test fix: use temp file sync. of test app
[lttng-tools.git] / tests / regression / tools / snapshots / test_ust_streaming
index e64b10cdc6c2665f666c93c3bbd815b6a6fe3273..632a563e06502e07303c3ece0a4232352eee5b1f 100755 (executable)
@@ -54,6 +54,24 @@ function snapshot_add_output ()
        ok $? "Added snapshot output $trace_path"
 }
 
+# Start trace application and return once one event has been hit.
+function start_trace_app()
+{
+       local tmp_file="/tmp/lttng_test_ust.42.file"
+
+       # Start application with a temporary file.
+       $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT $tmp_file &
+       ok $? "Start application to trace"
+
+       # Wait for the application file to appear indicating that at least one
+       # tracepoint has been fired.
+       while [ ! -f "$tmp_file" ]; do
+               sleep 0.5
+       done
+       diag "Removing test app temporary file $tmp_file"
+       rm -f $tmp_file
+}
+
 # Test a snapshot using a default name for the output destination.
 function test_ust_default_name_with_del()
 {
@@ -62,8 +80,9 @@ function test_ust_default_name_with_del()
        enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
        enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
        start_lttng_tracing $SESSION_NAME
-       $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
-       ok $? "Start application to trace"
+
+       start_trace_app
+
        snapshot_add_output $SESSION_NAME "net://localhost"
        lttng_snapshot_record $SESSION_NAME
 
@@ -102,8 +121,9 @@ function test_ust_default_name()
        enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
        enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
        start_lttng_tracing $SESSION_NAME
-       $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
-       ok $? "Start application to trace"
+
+       start_trace_app
+
        snapshot_add_output $SESSION_NAME "net://localhost"
        lttng_snapshot_record $SESSION_NAME
        stop_lttng_tracing $SESSION_NAME
@@ -126,8 +146,9 @@ function test_ust_default_name_custom_uri()
        enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
        enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
        start_lttng_tracing $SESSION_NAME
-       $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
-       ok $? "Start application to trace"
+
+       start_trace_app
+
        snapshot_add_output $SESSION_NAME "-C tcp://localhost:5342 -D tcp://localhost:5343"
        lttng_snapshot_record $SESSION_NAME
        stop_lttng_tracing $SESSION_NAME
@@ -154,8 +175,9 @@ function test_ust_custom_name()
        enable_lttng_mmap_overwrite_ust_channel $SESSION_NAME $CHANNEL_NAME
        enable_ust_lttng_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME
        start_lttng_tracing $SESSION_NAME
-       $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT &
-       ok $? "Start application to trace"
+
+       start_trace_app
+
        snapshot_add_output $SESSION_NAME "net://localhost" $name
        lttng_snapshot_record $SESSION_NAME
        stop_lttng_tracing $SESSION_NAME
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