129 lines
2.6 KiB
C++
129 lines
2.6 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2008-2016 Conrad Sanderson (https://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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//! \addtogroup wall_clock
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//! @{
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inline
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wall_clock::wall_clock()
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{
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arma_debug_sigprint();
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tic_point = std::chrono::steady_clock::now(); // warmup
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}
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inline
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wall_clock::~wall_clock()
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{
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arma_debug_sigprint();
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}
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inline
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void
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wall_clock::tic()
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{
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arma_debug_sigprint();
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if(is_frozen)
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{
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is_frozen = false;
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frozen_span = std::chrono::duration<double>::zero();
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}
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is_started = true;
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tic_point = std::chrono::steady_clock::now();
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}
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inline
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double
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wall_clock::toc()
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{
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arma_debug_sigprint();
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typedef std::chrono::duration<double> duration_type;
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const std::chrono::steady_clock::time_point toc_point = std::chrono::steady_clock::now();
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duration_type local_frozen_span = frozen_span;
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if(is_frozen)
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{
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// treat toc_point as equivalent to thaw_point
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const duration_type chrono_span = std::chrono::duration_cast< duration_type >(toc_point - freeze_point);
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local_frozen_span += chrono_span;
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}
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duration_type chrono_span = std::chrono::duration_cast< duration_type >(toc_point - tic_point);
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chrono_span -= local_frozen_span;
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return (is_started) ? double(chrono_span.count()) : double(0);
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}
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inline
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void
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wall_clock::freeze()
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{
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arma_debug_sigprint();
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if( (is_started) && (is_frozen == false) )
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{
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is_frozen = true;
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freeze_point = std::chrono::steady_clock::now();
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}
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}
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inline
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void
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wall_clock::unfreeze()
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{
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arma_debug_sigprint();
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typedef std::chrono::duration<double> duration_type;
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const std::chrono::steady_clock::time_point thaw_point = std::chrono::steady_clock::now();
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if(is_frozen)
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{
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is_frozen = false;
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const duration_type chrono_span = std::chrono::duration_cast< duration_type >(thaw_point - freeze_point);
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frozen_span += chrono_span;
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}
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}
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//! @}
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