summaryrefslogtreecommitdiff
path: root/vendor/codeberg.org/gruf/go-errors/v2/once.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/codeberg.org/gruf/go-errors/v2/once.go')
-rw-r--r--vendor/codeberg.org/gruf/go-errors/v2/once.go36
1 files changed, 10 insertions, 26 deletions
diff --git a/vendor/codeberg.org/gruf/go-errors/v2/once.go b/vendor/codeberg.org/gruf/go-errors/v2/once.go
index 83a45a61f..467fe726d 100644
--- a/vendor/codeberg.org/gruf/go-errors/v2/once.go
+++ b/vendor/codeberg.org/gruf/go-errors/v2/once.go
@@ -2,46 +2,30 @@ package errors
import (
"sync/atomic"
- "unsafe"
)
// OnceError is an error structure that supports safe multi
// threaded usage and setting only once (until reset).
-type OnceError struct{ err unsafe.Pointer }
-
-// NewOnce returns a new OnceError instance.
-func NewOnce() OnceError {
- return OnceError{
- err: nil,
- }
-}
+type OnceError struct{ ptr atomic.Pointer[error] }
// Store will safely set the OnceError to value, no-op if nil.
-func (e *OnceError) Store(err error) {
- // Nothing to do
+func (e *OnceError) Store(err error) bool {
if err == nil {
- return
+ return false
}
-
- // Only set if not already
- atomic.CompareAndSwapPointer(
- &e.err,
- nil,
- unsafe.Pointer(&err),
- )
+ return e.ptr.CompareAndSwap(nil, &err)
}
// Load will load the currently stored error.
func (e *OnceError) Load() error {
- return *(*error)(atomic.LoadPointer(&e.err))
+ if ptr := e.ptr.Load(); ptr != nil {
+ return *ptr
+ }
+ return nil
}
// IsSet returns whether OnceError has been set.
-func (e *OnceError) IsSet() bool {
- return (atomic.LoadPointer(&e.err) != nil)
-}
+func (e *OnceError) IsSet() bool { return (e.ptr.Load() != nil) }
// Reset will reset the OnceError value.
-func (e *OnceError) Reset() {
- atomic.StorePointer(&e.err, nil)
-}
+func (e *OnceError) Reset() { e.ptr.Store(nil) }