Tests: cleanly exit from test apps on reception of SIGTERM

[lttng-tools.git] / tests / utils / testapp / signal-helper.h

diff --git a/tests/utils/testapp/signal-helper.h b/tests/utils/testapp/signal-helper.h
new file mode 100644 (file)
index 0000000..4169e15
--- /dev/null
+++ b/tests/utils/testapp/signal-helper.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) - 2018 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation; version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#ifndef LTTNG_TESTAPP_SIGNAL_HELPER_H
+#define LTTNG_TESTAPP_SIGNAL_HELPER_H
+
+#include <signal.h>
+
+static volatile int should_quit;
+
+static
+void sighandler(int sig)
+{
+       if (sig == SIGTERM) {
+               should_quit = 1;
+       }
+}
+
+static
+int set_signal_handler(void)
+{
+       int ret;
+       struct sigaction sa = {
+               .sa_flags = 0,
+               .sa_handler = sighandler,
+       };
+
+       ret = sigemptyset(&sa.sa_mask);
+       if (ret) {
+               perror("sigemptyset");
+               goto end;
+       }
+
+       ret = sigaction(SIGTERM, &sa, NULL);
+       if (ret) {
+               perror("sigaction");
+               goto end;
+       }
+end:
+       return ret;
+}
+
+#endif /* LTTNG_TESTAPP_SIGNAL_HELPER_H */