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 "src/__support/macros/config.h" 13 #include <stdint.h> 14 15 namespace LIBC_NAMESPACE_DECL { 16 namespace testing { 17 18 class Timer { 19 void *Impl; 20 21 public: 22 Timer(); 23 ~Timer(); 24 25 void start(); 26 void stop(); 27 28 uint64_t nanoseconds() const; 29 }; 30 31 } // namespace testing 32 } // namespace LIBC_NAMESPACE_DECL 33 34 #endif // LLVM_LIBC_TEST_SRC_MATH_PERFORMANCE_TESTING_TIMER_H 35