library/cpp/yt/threading/fork_aware_spin_lock.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

#include "fork_aware_spin_lock.h"

#include "at_fork.h"

namespace NYT::NThreading {

////////////////////////////////////////////////////////////////////////////////

void TForkAwareSpinLock::Acquire() noexcept
{
    GetForkLock()->AcquireReaderForkFriendly();
    SpinLock_.Acquire();
}

void TForkAwareSpinLock::Release() noexcept
{
    SpinLock_.Release();
    GetForkLock()->ReleaseReader();
}

bool TForkAwareSpinLock::IsLocked() const noexcept
{
    return SpinLock_.IsLocked();
}

////////////////////////////////////////////////////////////////////////////////

} // namespace NYT::NThreading