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Diffstat (limited to 'vendor/go.uber.org/atomic/uintptr.go')
-rw-r--r-- | vendor/go.uber.org/atomic/uintptr.go | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/vendor/go.uber.org/atomic/uintptr.go b/vendor/go.uber.org/atomic/uintptr.go new file mode 100644 index 00000000..6b363ada --- /dev/null +++ b/vendor/go.uber.org/atomic/uintptr.go @@ -0,0 +1,102 @@ +// @generated Code generated by gen-atomicint. + +// Copyright (c) 2020-2021 Uber Technologies, Inc. +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. + +package atomic + +import ( + "encoding/json" + "strconv" + "sync/atomic" +) + +// Uintptr is an atomic wrapper around uintptr. +type Uintptr struct { + _ nocmp // disallow non-atomic comparison + + v uintptr +} + +// NewUintptr creates a new Uintptr. +func NewUintptr(i uintptr) *Uintptr { + return &Uintptr{v: i} +} + +// Load atomically loads the wrapped value. +func (i *Uintptr) Load() uintptr { + return atomic.LoadUintptr(&i.v) +} + +// Add atomically adds to the wrapped uintptr and returns the new value. +func (i *Uintptr) Add(n uintptr) uintptr { + return atomic.AddUintptr(&i.v, n) +} + +// Sub atomically subtracts from the wrapped uintptr and returns the new value. +func (i *Uintptr) Sub(n uintptr) uintptr { + return atomic.AddUintptr(&i.v, ^(n - 1)) +} + +// Inc atomically increments the wrapped uintptr and returns the new value. +func (i *Uintptr) Inc() uintptr { + return i.Add(1) +} + +// Dec atomically decrements the wrapped uintptr and returns the new value. +func (i *Uintptr) Dec() uintptr { + return i.Sub(1) +} + +// CAS is an atomic compare-and-swap. +func (i *Uintptr) CAS(old, new uintptr) bool { + return atomic.CompareAndSwapUintptr(&i.v, old, new) +} + +// Store atomically stores the passed value. +func (i *Uintptr) Store(n uintptr) { + atomic.StoreUintptr(&i.v, n) +} + +// Swap atomically swaps the wrapped uintptr and returns the old value. +func (i *Uintptr) Swap(n uintptr) uintptr { + return atomic.SwapUintptr(&i.v, n) +} + +// MarshalJSON encodes the wrapped uintptr into JSON. +func (i *Uintptr) MarshalJSON() ([]byte, error) { + return json.Marshal(i.Load()) +} + +// UnmarshalJSON decodes JSON into the wrapped uintptr. +func (i *Uintptr) UnmarshalJSON(b []byte) error { + var v uintptr + if err := json.Unmarshal(b, &v); err != nil { + return err + } + i.Store(v) + return nil +} + +// String encodes the wrapped value as a string. +func (i *Uintptr) String() string { + v := i.Load() + return strconv.FormatUint(uint64(v), 10) +} |