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df3de7647e
Instead of always defining LIBCXXABI_NO_TIMER to run the tests, only define LIBCXXABI_USE_TIMER when we want to enable the timer. This makes the libc++abi testing configuration simpler. As a fly-by fix, remove the unused LIBUNWIND_NO_TIMER macro from libunwind. Differential Revision: https://reviews.llvm.org/D111667
55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===////
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===////
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#ifndef TIMER_H
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#define TIMER_H
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// Define LIBCXXABI_USE_TIMER to enable testing with a timer.
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#if defined(LIBCXXABI_USE_TIMER)
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#include <chrono>
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#include <cstdio>
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class timer
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{
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typedef std::chrono::high_resolution_clock Clock;
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typedef Clock::time_point TimePoint;
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typedef std::chrono::microseconds MicroSeconds;
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public:
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timer() : m_start(Clock::now()) {}
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timer(timer const &) = delete;
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timer & operator=(timer const &) = delete;
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~timer()
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{
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using std::chrono::duration_cast;
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TimePoint end = Clock::now();
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MicroSeconds us = duration_cast<MicroSeconds>(end - m_start);
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std::printf("%d microseconds\n", us.count());
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}
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private:
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TimePoint m_start;
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};
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#else /* LIBCXXABI_USE_TIMER */
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class timer
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{
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public:
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timer() {}
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timer(timer const &) = delete;
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timer & operator=(timer const &) = delete;
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~timer() {}
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};
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#endif /* LIBCXXABI_USE_TIMER */
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#endif /* TIMER_H */
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