guarded.go RawHistoryFolder

1package daemon
2
3import "sync"
4
5// Guarded protects one value behind a mutex.
6type Guarded[T any] struct {
7	mu sync.Mutex
8	v  T
9}
10
11func (g *Guarded[T]) Get() T {
12	g.mu.Lock()
13	defer g.mu.Unlock()
14	return g.v
15}
16
17func (g *Guarded[T]) Set(v T) {
18	g.mu.Lock()
19	defer g.mu.Unlock()
20	g.v = v
21}
22
23func (g *Guarded[T]) With(fn func(*T)) {
24	g.mu.Lock()
25	defer g.mu.Unlock()
26	fn(&g.v)
27}