From f8480828f6f57e22f122ecec2547d7245a704506 Mon Sep 17 00:00:00 2001
From: Graham Percival <gperciva@tarsnap.com>
Date: Mon, 1 Jan 2024 15:25:06 -0800
Subject: [PATCH] Import millisleep.h

---
 util/millisleep.h | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 util/millisleep.h

diff --git a/util/millisleep.h b/util/millisleep.h
new file mode 100644
index 00000000..fb9c302f
--- /dev/null
+++ b/util/millisleep.h
@@ -0,0 +1,23 @@
+#ifndef MILLISLEEP_H_
+#define MILLISLEEP_H_
+
+#include <stddef.h>
+
+#include <time.h>
+
+/**
+ * millisleep(msec):
+ * Wait up to ${msec} milliseconds.  This duration can be interrupted by
+ * signals.
+ */
+static inline void
+millisleep(size_t msec)
+{
+	struct timespec ts;
+
+	ts.tv_sec = msec / 1000;
+	ts.tv_nsec = (msec % 1000) * 1000000;
+	nanosleep(&ts, NULL);
+}
+
+#endif /* !MILLISLEEP_H_ */