gcc/libgo/go/sync/atomic/64bit_arm.go
2012-11-21 07:03:38 +00:00

37 lines
619 B
Go

// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package atomic
func loadUint64(addr *uint64) (val uint64) {
for {
val = *addr
if CompareAndSwapUint64(addr, val, val) {
break
}
}
return
}
func storeUint64(addr *uint64, val uint64) {
for {
old := *addr
if CompareAndSwapUint64(addr, old, val) {
break
}
}
return
}
func addUint64(val *uint64, delta uint64) (new uint64) {
for {
old := *val
new = old + delta
if CompareAndSwapUint64(val, old, new) {
break
}
}
return
}