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58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
/*++
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Copyright (c) 2006 Microsoft Corporation
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Module Name:
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timeit.h
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Abstract:
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Support for timers.
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Author:
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Nikolaj Bjorner (nbjorner) 2006-09-22
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Revision History:
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--*/
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#include "util/timeit.h"
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#include "util/memory_manager.h"
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#include "util/stopwatch.h"
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#include<iomanip>
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#include<iostream>
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struct timeit::imp {
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stopwatch m_watch;
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char const * m_msg;
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std::ostream & m_out;
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double m_start_memory;
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imp(char const * msg, std::ostream & out):
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m_msg(msg),
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m_out(out),
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m_start_memory(static_cast<double>(memory::get_allocation_size())/static_cast<double>(1024*1024)) {
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m_watch.start();
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}
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~imp() {
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m_watch.stop();
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double end_memory = static_cast<double>(memory::get_allocation_size())/static_cast<double>(1024*1024);
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m_out << "(" << m_msg << " :time " << std::fixed << std::setprecision(2) << m_watch.get_seconds()
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<< " :before-memory " << std::fixed << std::setprecision(2) << m_start_memory
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<< " :after-memory " << std::fixed << std::setprecision(2) << end_memory << ")"
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<< std::endl;
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}
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};
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timeit::timeit(bool enable, char const * msg, std::ostream * out) {
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if (enable)
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m_imp = alloc(imp, msg, out ? *out : std::cerr);
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else
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m_imp = nullptr;
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}
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timeit::~timeit() {
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if (m_imp)
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dealloc(m_imp);
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}
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