move Wait to util package

1 files changed, 16 insertions, 0 deletions

diff --git a/src/main/java/derms/util/Wait.java b/src/main/java/derms/util/Wait.java
new file mode 100644
index 0000000..1e77020
--- /dev/null
+++ b/src/main/java/derms/util/Wait.java
@@ -0,0 +1,16 @@
+package derms.util;
+
+import java.time.Duration;
+import java.time.Instant;
+
+public class Wait {
+    /** Yield the thread for the specified duration. */
+    public static void forDuration(Duration dur) throws InterruptedException {
+        Instant start = Instant.now();
+        Duration elapsed;
+        do {
+            Thread.yield();
+            elapsed = Duration.between(start, Instant.now());
+        } while (elapsed.compareTo(dur) < 0);
+    }
+}