diff options
Diffstat (limited to 'pkg/refs/refcounter.go')
| -rw-r--r-- | pkg/refs/refcounter.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/pkg/refs/refcounter.go b/pkg/refs/refcounter.go index 3dd6f0dd4..6ecbace9e 100644 --- a/pkg/refs/refcounter.go +++ b/pkg/refs/refcounter.go @@ -365,6 +365,8 @@ func (r *AtomicRefCount) ReadRefs() int64 { // // The sanity check here is limited to real references, since if they have // dropped beneath zero then the object should have been destroyed. +// +//go:nosplit func (r *AtomicRefCount) IncRef() { if v := atomic.AddInt64(&r.refCount, 1); v <= 0 { panic("Incrementing non-positive ref count") @@ -379,6 +381,8 @@ func (r *AtomicRefCount) IncRef() { // To do this safely without a loop, a speculative reference is first acquired // on the object. This allows multiple concurrent TryIncRef calls to // distinguish other TryIncRef calls from genuine references held. +// +//go:nosplit func (r *AtomicRefCount) TryIncRef() bool { const speculativeRef = 1 << 32 v := atomic.AddInt64(&r.refCount, speculativeRef) @@ -420,6 +424,7 @@ func (r *AtomicRefCount) dropWeakRef(w *WeakRef) { // B: DecRef [real decrease] // A: TryIncRef [transform speculative to real] // +//go:nosplit func (r *AtomicRefCount) DecRefWithDestructor(destroy func()) { switch v := atomic.AddInt64(&r.refCount, -1); { case v < -1: @@ -455,6 +460,8 @@ func (r *AtomicRefCount) DecRefWithDestructor(destroy func()) { } // DecRef decrements this object's reference count. +// +//go:nosplit func (r *AtomicRefCount) DecRef() { r.DecRefWithDestructor(nil) } |