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#include "fork_aware_spin_lock.h"
#include "at_fork.h"
namespace NYT::NThreading {
////////////////////////////////////////////////////////////////////////////////
void TForkAwareSpinLock::Acquire() noexcept
{
GetForkLock()->AcquireReaderForkFriendly();
SpinLock_.Acquire();
}
bool TForkAwareSpinLock::TryAcquire() noexcept
{
if (!GetForkLock()->TryAcquireReaderForkFriendly()) {
return false;
}
if (!SpinLock_.TryAcquire()) {
GetForkLock()->ReleaseReader();
return false;
}
return true;
}
void TForkAwareSpinLock::Release() noexcept
{
SpinLock_.Release();
GetForkLock()->ReleaseReader();
}
bool TForkAwareSpinLock::IsLocked() const noexcept
{
return SpinLock_.IsLocked();
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT::NThreading
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