Fix: Warn if session is running with lttng view
[lttng-tools.git] / src / bin / lttng / commands / view.c
index 430f8b62cfd208375691f3dda72ceb64f9ee881a..dd3c9a3cc225b06d2ff055fdfb7acdfe0bc141ef 100644 (file)
@@ -343,6 +343,13 @@ static int view_trace(void)
                trace_path = opt_trace_path;
        }
 
+       if (sessions[i].enabled) {
+               WARN("Session %s is running. Please stop it before reading it.",
+                               session_name);
+               ret = CMD_ERROR;
+               goto free_sessions;
+       }
+
        MSG("Trace directory: %s\n", trace_path);
 
        ret = spawn_viewer(trace_path);
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