summaryrefslogtreecommitdiff
path: root/src/pkg/sync/atomic/64bit_arm.go
blob: f070e78bd3c3c7f52122ed7bfbb16140db021269 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
// 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
}