ctxutil

Documentation

Index

• func Call(ctx context.Context, prefix string, fn func() error, lateFn func(error)) error
• func CallsState() string
• func Keep[T any](ps ...*T) *keeper[T]
• func Retry(ctx context.Context, retryPause time.Duration, prefix string, fn func() error, ...) error
• func WatchDone(ctx context.Context, cancel func()) func()
• func WithCancel2(ctx1, ctx2 context.Context) (context.Context, context.CancelFunc)
• type Ctx
  • func (ctx *Ctx) Value(name string) (any, *Ctx)
  • func (ctx *Ctx) ValueBool(name string) bool
  • func (ctx *Ctx) ValueInt(name string) int
  • func (ctx *Ctx) WithValue(name string, value any) *Ctx

Functions

func Call

func Call(ctx context.Context, prefix string, fn func() error, lateFn func(error)) error

Allows fn to return early on ctx cancel. If fn does not return in time, lateFn will run at the end of fn (async).

func CallsState

func CallsState() string

func Keep

func Keep[T any](ps ...*T) *keeper[T]

func Retry

func Retry(ctx context.Context, retryPause time.Duration, prefix string, fn func() error, lateFn func(error)) error

func WatchDone

func WatchDone(ctx context.Context, cancel func()) func()

func WithCancel2

func WithCancel2(ctx1, ctx2 context.Context) (context.Context, context.CancelFunc)

Types

type Ctx

type Ctx struct {
	Parent *Ctx
	// name/value (short names to avoid usage, still exporting it)
	N string
	V any
}

func (*Ctx) Value

func (ctx *Ctx) Value(name string) (any, *Ctx)

func (*Ctx) ValueBool

func (ctx *Ctx) ValueBool(name string) bool

func (*Ctx) ValueInt

func (ctx *Ctx) ValueInt(name string) int

func (*Ctx) WithValue

func (ctx *Ctx) WithValue(name string, value any) *Ctx