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package azblob
import "sync/atomic"
// AtomicMorpherInt32 identifies a method passed to and invoked by the AtomicMorphInt32 function.
// The AtomicMorpher callback is passed a startValue and based on this value it returns
// what the new value should be and the result that AtomicMorph should return to its caller.
type AtomicMorpherInt32 func(startVal int32) (val int32, morphResult interface{})
// AtomicMorph atomically morphs target in to new value (and result) as indicated bythe AtomicMorpher callback function.
func AtomicMorphInt32(target *int32, morpher AtomicMorpherInt32) interface{} {
if target == nil || morpher == nil {
panic("target and morpher mut not be nil")
}
for {
currentVal := atomic.LoadInt32(target)
desiredVal, morphResult := morpher(currentVal)
if atomic.CompareAndSwapInt32(target, currentVal, desiredVal) {
return morphResult
}
}
}
// AtomicMorpherUint32 identifies a method passed to and invoked by the AtomicMorph function.
// The AtomicMorpher callback is passed a startValue and based on this value it returns
// what the new value should be and the result that AtomicMorph should return to its caller.
type AtomicMorpherUint32 func(startVal uint32) (val uint32, morphResult interface{})
// AtomicMorph atomically morphs target in to new value (and result) as indicated bythe AtomicMorpher callback function.
func AtomicMorphUint32(target *uint32, morpher AtomicMorpherUint32) interface{} {
if target == nil || morpher == nil {
panic("target and morpher mut not be nil")
}
for {
currentVal := atomic.LoadUint32(target)
desiredVal, morphResult := morpher(currentVal)
if atomic.CompareAndSwapUint32(target, currentVal, desiredVal) {
return morphResult
}
}
}
// AtomicMorpherUint64 identifies a method passed to and invoked by the AtomicMorphUint64 function.
// The AtomicMorpher callback is passed a startValue and based on this value it returns
// what the new value should be and the result that AtomicMorph should return to its caller.
type AtomicMorpherInt64 func(startVal int64) (val int64, morphResult interface{})
// AtomicMorph atomically morphs target in to new value (and result) as indicated bythe AtomicMorpher callback function.
func AtomicMorphInt64(target *int64, morpher AtomicMorpherInt64) interface{} {
if target == nil || morpher == nil {
panic("target and morpher mut not be nil")
}
for {
currentVal := atomic.LoadInt64(target)
desiredVal, morphResult := morpher(currentVal)
if atomic.CompareAndSwapInt64(target, currentVal, desiredVal) {
return morphResult
}
}
}
// AtomicMorpherUint64 identifies a method passed to and invoked by the AtomicMorphUint64 function.
// The AtomicMorpher callback is passed a startValue and based on this value it returns
// what the new value should be and the result that AtomicMorph should return to its caller.
type AtomicMorpherUint64 func(startVal uint64) (val uint64, morphResult interface{})
// AtomicMorph atomically morphs target in to new value (and result) as indicated bythe AtomicMorpher callback function.
func AtomicMorphUint64(target *uint64, morpher AtomicMorpherUint64) interface{} {
if target == nil || morpher == nil {
panic("target and morpher mut not be nil")
}
for {
currentVal := atomic.LoadUint64(target)
desiredVal, morphResult := morpher(currentVal)
if atomic.CompareAndSwapUint64(target, currentVal, desiredVal) {
return morphResult
}
}
}
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