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31289436f5
Using PAUSE in a tight loop allows other logical cores on the same physical core to make use of more of the core's resources.
23 lines
387 B
C++
23 lines
387 B
C++
#include "clock.h"
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clock * clock::s_instance = nullptr;
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clock::clock(uint64_t rate, clock::source source_func, void *data) :
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m_rate(rate),
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m_data(data),
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m_source(source_func)
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{
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// TODO: make this atomic
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if (s_instance == nullptr)
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s_instance = this;
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update();
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}
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void
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clock::spinwait(uint64_t us) const
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{
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uint64_t when = value() + us;
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while (value() < when) asm ("pause");
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}
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