libgo/go/sync/atomic/64bit_linux_arm.go

   1 // Copyright 2012 The Go Authors.  All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package atomic
   6
   7 func loadUint64(addr *uint64) (val uint64) {
   8         for {
   9                 val = *addr
  10                 if CompareAndSwapUint64(addr, val, val) {
  11                         break
  12                 }
  13         }
  14         return
  15 }
  16
  17 func storeUint64(addr *uint64, val uint64) {
  18         for {
  19                 old := *addr
  20                 if CompareAndSwapUint64(addr, old, val) {
  21                         break
  22                 }
  23         }
  24         return
  25 }
  26
  27 func addUint64(val *uint64, delta uint64) (new uint64) {
  28         for {
  29                 old := *val
  30                 new = old + delta
  31                 if CompareAndSwapUint64(val, old, new) {
  32                         break
  33                 }
  34         }
  35         return
  36 }