1 files changed, 56 insertions, 0 deletions
diff --git a/tests/virt-time.h b/tests/virt-time.h
new file mode 100644
index 0000000000..02c8cdb147
--- /dev/null
+++ b/tests/virt-time.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2018 Red Hat, Inc.
+ *
+ * Author: Nikos Mavrogiannopoulos
+ *
+ * This file is part of GnuTLS.
+ *
+ * GnuTLS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuTLS 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
+ * 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/>
+ */
+
+#ifndef VIRT_TIME_H
+#define VIRT_TIME_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <time.h>
+#include <gnutls/gnutls.h>
+
+/* virtualize time in a test. This freezes the time in the test, except for
+ * the advances due to calls to virt_sleep_sec(). This makes the test
+ * independent of the test system load, and avoids any long delays.
+ *
+ * This only affects the parts of the library that utilize gnutls_time(),
+ * not the higher precision gettime */
+static time_t _now = 0;
+
+#define virt_sec_sleep(s) _now += s
+
+#define virt_time_init() { \
+		_now = time(0); \
+		gnutls_global_set_time_function(mytime); \
+	}
+
+
+static time_t mytime(time_t * t)
+{
+	if (t)
+		*t = _now;
+
+	return _now;
+}
+
+#endif