libc/utils/testutils/Timer.h

   1 //===-- Timer.h -------------------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIBC_UTILS_TESTUTILS_TIMER_H
  10 #define LLVM_LIBC_UTILS_TESTUTILS_TIMER_H
  11
  12 #include <stdint.h>
  13
  14 namespace __llvm_libc {
  15 namespace testing {
  16
  17 class Timer {
  18   void *Impl;
  19
  20 public:
  21   Timer();
  22   ~Timer();
  23
  24   void start();
  25   void stop();
  26
  27   uint64_t nanoseconds() const;
  28 };
  29
  30 } // namespace testing
  31 } // namespace __llvm_libc
  32
  33 #endif // LLVM_LIBC_UTILS_TESTUTILS_TIMER_H