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_TEST_SRC_MATH_PERFORMACE_TESTING_TIMER_H 10 #define LLVM_LIBC_TEST_SRC_MATH_PERFORMACE_TESTING_TIMER_H 11 12 #include <stdint.h> 13 14 namespace LIBC_NAMESPACE { 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 LIBC_NAMESPACE 32 33 #endif // LLVM_LIBC_TEST_SRC_MATH_PERFORMANCE_TESTING_TIMER_H 34