Split out //aos/common:queue_testutils and rename stuff
It had three independent pieces of functionality, one of which had a
pretty bad name.
Change-Id: I4a6937692fa36e74f814b3be4d4c5bc751947088
diff --git a/aos/testing/prevent_exit.h b/aos/testing/prevent_exit.h
new file mode 100644
index 0000000..ee39fdb
--- /dev/null
+++ b/aos/testing/prevent_exit.h
@@ -0,0 +1,16 @@
+#ifndef AOS_TESTING_PREVENT_EXIT_H_
+#define AOS_TESTING_PREVENT_EXIT_H_
+
+namespace aos {
+namespace testing {
+
+// Registers an exit handler (using atexit(3)) which will call _exit(2).
+// Intended to be called in a freshly fork(2)ed process where it will run before
+// any other exit handlers that were already registered and prevent them from
+// being run.
+void PreventExit();
+
+} // namespace testing
+} // namespace aos
+
+#endif // AOS_TESTING_PREVENT_EXIT_H_