96 lines
4.1 KiB
C++
96 lines
4.1 KiB
C++
#pragma once
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////////////////////////////////////////////////////////////////////////////////
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// The MIT License (MIT)
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//
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// Copyright (c) 2017 Nicholas Frechette & Animation Compression Library contributors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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////////////////////////////////////////////////////////////////////////////////
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#include "acl/core/impl/compiler_utils.h"
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#include <chrono>
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#include <cstdint>
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ACL_IMPL_FILE_PRAGMA_PUSH
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namespace acl
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{
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////////////////////////////////////////////////////////////////////////////////
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// A scope activated profiler.
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////////////////////////////////////////////////////////////////////////////////
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class scope_profiler
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{
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public:
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////////////////////////////////////////////////////////////////////////////////
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// Creates and starts a scope profiler and automatically starts it.
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scope_profiler();
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////////////////////////////////////////////////////////////////////////////////
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// Destroys a scope profiler and automatically stops it.
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~scope_profiler() = default;
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////////////////////////////////////////////////////////////////////////////////
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// Manually stops the profiler.
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void stop();
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////////////////////////////////////////////////////////////////////////////////
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// Returns the elapsed time in nanoseconds since the profiler was started.
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std::chrono::nanoseconds get_elapsed_time() const { return std::chrono::duration_cast<std::chrono::nanoseconds>(m_end_time - m_start_time); }
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////////////////////////////////////////////////////////////////////////////////
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// Returns the elapsed time in microseconds since the profiler was started.
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double get_elapsed_microseconds() const { return std::chrono::duration<double, std::chrono::microseconds::period>(get_elapsed_time()).count(); }
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////////////////////////////////////////////////////////////////////////////////
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// Returns the elapsed time in milliseconds since the profiler was started.
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double get_elapsed_milliseconds() const { return std::chrono::duration<double, std::chrono::milliseconds::period>(get_elapsed_time()).count(); }
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////////////////////////////////////////////////////////////////////////////////
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// Returns the elapsed time in seconds since the profiler was started.
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double get_elapsed_seconds() const { return std::chrono::duration<double, std::chrono::seconds::period>(get_elapsed_time()).count(); }
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private:
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scope_profiler(const scope_profiler&) = delete;
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scope_profiler& operator=(const scope_profiler&) = delete;
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// The time at which the profiler started.
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std::chrono::time_point<std::chrono::high_resolution_clock> m_start_time;
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// The time at which the profiler stopped.
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std::chrono::time_point<std::chrono::high_resolution_clock> m_end_time;
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};
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//////////////////////////////////////////////////////////////////////////
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inline scope_profiler::scope_profiler()
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{
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m_start_time = m_end_time = std::chrono::high_resolution_clock::now();
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}
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inline void scope_profiler::stop()
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{
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if (m_start_time == m_end_time)
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m_end_time = std::chrono::high_resolution_clock::now();
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}
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}
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ACL_IMPL_FILE_PRAGMA_POP
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