20a114cb62
This adds a way to periodically pool the PAL to see if any timers have expired. Timers can be used to periodically provide callbacks to the rest of snmalloc.
27 lines
390 B
C++
27 lines
390 B
C++
#pragma once
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#include "bits.h"
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#include <atomic>
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namespace snmalloc
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{
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class FlagLock
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{
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private:
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std::atomic_flag& lock;
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public:
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FlagLock(std::atomic_flag& lock) : lock(lock)
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{
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while (lock.test_and_set(std::memory_order_acquire))
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Aal::pause();
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}
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~FlagLock()
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{
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lock.clear(std::memory_order_release);
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}
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};
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} // namespace snmalloc
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