mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-02 03:00:23 +00:00
91774fc936
Uses github.com/libopenstorage/secrets to communicate with Vault. This removes the need for maintaining our own limited Vault APIs. By adding the new dependency, several other packages got updated in the process. Unused indirect dependencies have been removed from go.mod. Signed-off-by: Niels de Vos <ndevos@redhat.com>
352 lines
9.2 KiB
Go
352 lines
9.2 KiB
Go
// Copyright (c) 2016 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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// Package atomic provides simple wrappers around numerics to enforce atomic
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// access.
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package atomic
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import (
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"math"
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"sync/atomic"
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"time"
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)
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// Int32 is an atomic wrapper around an int32.
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type Int32 struct{ v int32 }
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// NewInt32 creates an Int32.
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func NewInt32(i int32) *Int32 {
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return &Int32{i}
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}
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// Load atomically loads the wrapped value.
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func (i *Int32) Load() int32 {
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return atomic.LoadInt32(&i.v)
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}
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// Add atomically adds to the wrapped int32 and returns the new value.
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func (i *Int32) Add(n int32) int32 {
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return atomic.AddInt32(&i.v, n)
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}
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// Sub atomically subtracts from the wrapped int32 and returns the new value.
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func (i *Int32) Sub(n int32) int32 {
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return atomic.AddInt32(&i.v, -n)
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}
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// Inc atomically increments the wrapped int32 and returns the new value.
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func (i *Int32) Inc() int32 {
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return i.Add(1)
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}
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// Dec atomically decrements the wrapped int32 and returns the new value.
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func (i *Int32) Dec() int32 {
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return i.Sub(1)
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}
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// CAS is an atomic compare-and-swap.
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func (i *Int32) CAS(old, new int32) bool {
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return atomic.CompareAndSwapInt32(&i.v, old, new)
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}
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// Store atomically stores the passed value.
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func (i *Int32) Store(n int32) {
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atomic.StoreInt32(&i.v, n)
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}
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// Swap atomically swaps the wrapped int32 and returns the old value.
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func (i *Int32) Swap(n int32) int32 {
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return atomic.SwapInt32(&i.v, n)
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}
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// Int64 is an atomic wrapper around an int64.
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type Int64 struct{ v int64 }
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// NewInt64 creates an Int64.
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func NewInt64(i int64) *Int64 {
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return &Int64{i}
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}
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// Load atomically loads the wrapped value.
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func (i *Int64) Load() int64 {
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return atomic.LoadInt64(&i.v)
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}
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// Add atomically adds to the wrapped int64 and returns the new value.
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func (i *Int64) Add(n int64) int64 {
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return atomic.AddInt64(&i.v, n)
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}
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// Sub atomically subtracts from the wrapped int64 and returns the new value.
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func (i *Int64) Sub(n int64) int64 {
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return atomic.AddInt64(&i.v, -n)
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}
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// Inc atomically increments the wrapped int64 and returns the new value.
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func (i *Int64) Inc() int64 {
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return i.Add(1)
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}
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// Dec atomically decrements the wrapped int64 and returns the new value.
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func (i *Int64) Dec() int64 {
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return i.Sub(1)
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}
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// CAS is an atomic compare-and-swap.
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func (i *Int64) CAS(old, new int64) bool {
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return atomic.CompareAndSwapInt64(&i.v, old, new)
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}
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// Store atomically stores the passed value.
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func (i *Int64) Store(n int64) {
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atomic.StoreInt64(&i.v, n)
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}
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// Swap atomically swaps the wrapped int64 and returns the old value.
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func (i *Int64) Swap(n int64) int64 {
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return atomic.SwapInt64(&i.v, n)
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}
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// Uint32 is an atomic wrapper around an uint32.
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type Uint32 struct{ v uint32 }
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// NewUint32 creates a Uint32.
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func NewUint32(i uint32) *Uint32 {
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return &Uint32{i}
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}
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// Load atomically loads the wrapped value.
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func (i *Uint32) Load() uint32 {
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return atomic.LoadUint32(&i.v)
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}
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// Add atomically adds to the wrapped uint32 and returns the new value.
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func (i *Uint32) Add(n uint32) uint32 {
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return atomic.AddUint32(&i.v, n)
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}
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// Sub atomically subtracts from the wrapped uint32 and returns the new value.
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func (i *Uint32) Sub(n uint32) uint32 {
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return atomic.AddUint32(&i.v, ^(n - 1))
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}
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// Inc atomically increments the wrapped uint32 and returns the new value.
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func (i *Uint32) Inc() uint32 {
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return i.Add(1)
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}
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// Dec atomically decrements the wrapped int32 and returns the new value.
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func (i *Uint32) Dec() uint32 {
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return i.Sub(1)
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}
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// CAS is an atomic compare-and-swap.
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func (i *Uint32) CAS(old, new uint32) bool {
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return atomic.CompareAndSwapUint32(&i.v, old, new)
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}
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// Store atomically stores the passed value.
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func (i *Uint32) Store(n uint32) {
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atomic.StoreUint32(&i.v, n)
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}
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// Swap atomically swaps the wrapped uint32 and returns the old value.
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func (i *Uint32) Swap(n uint32) uint32 {
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return atomic.SwapUint32(&i.v, n)
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}
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// Uint64 is an atomic wrapper around a uint64.
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type Uint64 struct{ v uint64 }
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// NewUint64 creates a Uint64.
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func NewUint64(i uint64) *Uint64 {
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return &Uint64{i}
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}
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// Load atomically loads the wrapped value.
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func (i *Uint64) Load() uint64 {
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return atomic.LoadUint64(&i.v)
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}
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// Add atomically adds to the wrapped uint64 and returns the new value.
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func (i *Uint64) Add(n uint64) uint64 {
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return atomic.AddUint64(&i.v, n)
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}
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// Sub atomically subtracts from the wrapped uint64 and returns the new value.
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func (i *Uint64) Sub(n uint64) uint64 {
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return atomic.AddUint64(&i.v, ^(n - 1))
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}
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// Inc atomically increments the wrapped uint64 and returns the new value.
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func (i *Uint64) Inc() uint64 {
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return i.Add(1)
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}
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// Dec atomically decrements the wrapped uint64 and returns the new value.
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func (i *Uint64) Dec() uint64 {
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return i.Sub(1)
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}
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// CAS is an atomic compare-and-swap.
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func (i *Uint64) CAS(old, new uint64) bool {
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return atomic.CompareAndSwapUint64(&i.v, old, new)
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}
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// Store atomically stores the passed value.
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func (i *Uint64) Store(n uint64) {
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atomic.StoreUint64(&i.v, n)
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}
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// Swap atomically swaps the wrapped uint64 and returns the old value.
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func (i *Uint64) Swap(n uint64) uint64 {
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return atomic.SwapUint64(&i.v, n)
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}
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// Bool is an atomic Boolean.
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type Bool struct{ v uint32 }
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// NewBool creates a Bool.
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func NewBool(initial bool) *Bool {
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return &Bool{boolToInt(initial)}
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}
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// Load atomically loads the Boolean.
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func (b *Bool) Load() bool {
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return truthy(atomic.LoadUint32(&b.v))
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}
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// CAS is an atomic compare-and-swap.
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func (b *Bool) CAS(old, new bool) bool {
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return atomic.CompareAndSwapUint32(&b.v, boolToInt(old), boolToInt(new))
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}
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// Store atomically stores the passed value.
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func (b *Bool) Store(new bool) {
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atomic.StoreUint32(&b.v, boolToInt(new))
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}
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// Swap sets the given value and returns the previous value.
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func (b *Bool) Swap(new bool) bool {
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return truthy(atomic.SwapUint32(&b.v, boolToInt(new)))
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}
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// Toggle atomically negates the Boolean and returns the previous value.
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func (b *Bool) Toggle() bool {
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return truthy(atomic.AddUint32(&b.v, 1) - 1)
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}
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func truthy(n uint32) bool {
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return n&1 == 1
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}
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func boolToInt(b bool) uint32 {
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if b {
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return 1
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}
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return 0
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}
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// Float64 is an atomic wrapper around float64.
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type Float64 struct {
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v uint64
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}
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// NewFloat64 creates a Float64.
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func NewFloat64(f float64) *Float64 {
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return &Float64{math.Float64bits(f)}
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}
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// Load atomically loads the wrapped value.
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func (f *Float64) Load() float64 {
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return math.Float64frombits(atomic.LoadUint64(&f.v))
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}
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// Store atomically stores the passed value.
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func (f *Float64) Store(s float64) {
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atomic.StoreUint64(&f.v, math.Float64bits(s))
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}
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// Add atomically adds to the wrapped float64 and returns the new value.
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func (f *Float64) Add(s float64) float64 {
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for {
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old := f.Load()
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new := old + s
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if f.CAS(old, new) {
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return new
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}
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}
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}
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// Sub atomically subtracts from the wrapped float64 and returns the new value.
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func (f *Float64) Sub(s float64) float64 {
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return f.Add(-s)
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}
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// CAS is an atomic compare-and-swap.
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func (f *Float64) CAS(old, new float64) bool {
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return atomic.CompareAndSwapUint64(&f.v, math.Float64bits(old), math.Float64bits(new))
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}
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// Duration is an atomic wrapper around time.Duration
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// https://godoc.org/time#Duration
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type Duration struct {
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v Int64
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}
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// NewDuration creates a Duration.
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func NewDuration(d time.Duration) *Duration {
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return &Duration{v: *NewInt64(int64(d))}
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}
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// Load atomically loads the wrapped value.
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func (d *Duration) Load() time.Duration {
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return time.Duration(d.v.Load())
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}
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// Store atomically stores the passed value.
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func (d *Duration) Store(n time.Duration) {
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d.v.Store(int64(n))
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}
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// Add atomically adds to the wrapped time.Duration and returns the new value.
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func (d *Duration) Add(n time.Duration) time.Duration {
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return time.Duration(d.v.Add(int64(n)))
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}
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// Sub atomically subtracts from the wrapped time.Duration and returns the new value.
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func (d *Duration) Sub(n time.Duration) time.Duration {
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return time.Duration(d.v.Sub(int64(n)))
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}
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// Swap atomically swaps the wrapped time.Duration and returns the old value.
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func (d *Duration) Swap(n time.Duration) time.Duration {
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return time.Duration(d.v.Swap(int64(n)))
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}
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// CAS is an atomic compare-and-swap.
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func (d *Duration) CAS(old, new time.Duration) bool {
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return d.v.CAS(int64(old), int64(new))
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}
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// Value shadows the type of the same name from sync/atomic
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// https://godoc.org/sync/atomic#Value
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type Value struct{ atomic.Value }
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