99 lines
3.0 KiB
Go
99 lines
3.0 KiB
Go
// Copyright 2024 LiveKit, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package configutil
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import (
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"time"
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"go.uber.org/atomic"
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)
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type ConfigObserver[T any] interface {
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Observe(cb func(*T)) func()
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Load() *T
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}
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func NewAtomicBool[C any](config ConfigObserver[C], accessor func(*C) bool) *atomic.Bool {
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return newAtomic(atomic.NewBool, config, accessor)
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}
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func NewAtomicDuration[C any](config ConfigObserver[C], accessor func(*C) time.Duration) *atomic.Duration {
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return newAtomic(atomic.NewDuration, config, accessor)
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}
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func NewAtomicFloat32[C any](config ConfigObserver[C], accessor func(*C) float32) *atomic.Float32 {
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return newAtomic(atomic.NewFloat32, config, accessor)
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}
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func NewAtomicFloat64[C any](config ConfigObserver[C], accessor func(*C) float64) *atomic.Float64 {
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return newAtomic(atomic.NewFloat64, config, accessor)
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}
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func NewAtomicInt32[C any](config ConfigObserver[C], accessor func(*C) int32) *atomic.Int32 {
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return newAtomic(atomic.NewInt32, config, accessor)
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}
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func NewAtomicInt64[C any](config ConfigObserver[C], accessor func(*C) int64) *atomic.Int64 {
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return newAtomic(atomic.NewInt64, config, accessor)
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}
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func NewAtomicString[C any](config ConfigObserver[C], accessor func(*C) string) *atomic.String {
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return newAtomic(atomic.NewString, config, accessor)
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}
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func NewAtomicTime[C any](config ConfigObserver[C], accessor func(*C) time.Time) *atomic.Time {
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return newAtomic(atomic.NewTime, config, accessor)
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}
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func NewAtomicUint32[C any](config ConfigObserver[C], accessor func(*C) uint32) *atomic.Uint32 {
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return newAtomic(atomic.NewUint32, config, accessor)
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}
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func NewAtomicUint64[C any](config ConfigObserver[C], accessor func(*C) uint64) *atomic.Uint64 {
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return newAtomic(atomic.NewUint64, config, accessor)
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}
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func NewAtomicPointer[T, C any](config ConfigObserver[C], accessor func(*C) *T) *atomic.Pointer[T] {
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return newAtomic(atomic.NewPointer[T], config, accessor)
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}
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type AtomicValue[T any] struct {
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v atomic.Value
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}
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func newAtomicValue[T any](_ T) *AtomicValue[T] {
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return &AtomicValue[T]{}
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}
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func (a *AtomicValue[T]) Store(v T) {
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a.v.Store(v)
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}
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func (a *AtomicValue[T]) Load() T {
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return a.v.Load().(T)
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}
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func NewAtomicValue[T, C any](config ConfigObserver[C], accessor func(*C) T) *AtomicValue[T] {
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return newAtomic(newAtomicValue[T], config, accessor)
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}
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func newAtomic[T, C any, A interface{ Store(T) }](ctor func(T) A, config ConfigObserver[C], accessor func(*C) T) A {
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var zero T
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v := ctor(zero)
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config.Observe(func(cc *C) { v.Store(accessor(cc)) })
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v.Store(accessor(config.Load()))
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return v
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}
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