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diff --git a/tests/introspective-system.c b/tests/introspective-system.c
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+/*************************************************************************
+ * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com> *
+ * *
+ * This file is part of The Sandglass Library. *
+ * *
+ * The Sandglass 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; either version *
+ * 3 of the License, or (at your option) any later version. *
+ * *
+ * The Sandglass 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 program. If not, see *
+ * <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+#include <sandglass.h>
+#include <unistd.h>
+#include <time.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main()
+{
+ sandglass_t sandglass;
+ sandglass_attributes_t attr = { SANDGLASS_INTROSPECTIVE, SANDGLASS_SYSTEM };
+ struct timespec tosleep = { .tv_sec = 0, .tv_nsec = 100000000 };
+
+ if (sandglass_create(&sandglass, &attr, &attr) != 0) {
+ perror("sandglass_create()");
+ return EXIT_FAILURE;
+ }
+
+ if (sandglass_begin(&sandglass) != 0) {
+ perror("sandglass_begin()");
+ return EXIT_FAILURE;
+ }
+ while (nanosleep(&tosleep, &tosleep) != 0);
+ if (sandglass_elapse(&sandglass) != 0) {
+ perror("sandglass_elapse()");
+ return EXIT_FAILURE;
+ }
+
+ return EXIT_SUCCESS;
+}