[Openmp-commits] [openmp] [OpenMP][NFC] Put ExponentialBackoff in a Utils header (PR #73816)

[Johannes Doerfert via Openmp-commits]

================
@@ -0,0 +1,52 @@
+//===-- Utils/ExponentialBackoff.h - Heuristic helper class ------*- C++ -*===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Implement exponential backoff counting.
+// Linearly increments until given maximum, exponentially decrements based on
+// given backoff factor.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef OMPTARGET_UTILS_EXPONENTIAL_BACKOFF_H
+#define OMPTARGET_UTILS_EXPONENTIAL_BACKOFF_H
+
+#include <cassert>
+#include <cmath>
+#include <cstdint>
+
+namespace utils {
+
+class ExponentialBackoff {
+  int64_t Count = 0;
+  const int64_t MaxCount = 0;
+  const int64_t CountThreshold = 0;
+  const float BackoffFactor = 0.0f;
----------------
jdoerfert wrote:

Made it a double.

https://github.com/llvm/llvm-project/pull/73816