45 lines
1015 B
Go
45 lines
1015 B
Go
package server
|
|
|
|
import (
|
|
"context"
|
|
)
|
|
|
|
type serverKey struct{}
|
|
|
|
// FromContext returns Server from context
|
|
func FromContext(ctx context.Context) (Server, bool) {
|
|
if ctx == nil {
|
|
return nil, false
|
|
}
|
|
c, ok := ctx.Value(serverKey{}).(Server)
|
|
return c, ok
|
|
}
|
|
|
|
// NewContext stores Server to context
|
|
func NewContext(ctx context.Context, s Server) context.Context {
|
|
if ctx == nil {
|
|
ctx = context.Background()
|
|
}
|
|
return context.WithValue(ctx, serverKey{}, s)
|
|
}
|
|
|
|
// SetOption returns a function to setup a context with given value
|
|
func SetOption(k, v interface{}) Option {
|
|
return func(o *Options) {
|
|
if o.Context == nil {
|
|
o.Context = context.Background()
|
|
}
|
|
o.Context = context.WithValue(o.Context, k, v)
|
|
}
|
|
}
|
|
|
|
// SetSubscriberOption returns a function to setup a context with given value
|
|
func SetSubscriberOption(k, v interface{}) SubscriberOption {
|
|
return func(o *SubscriberOptions) {
|
|
if o.Context == nil {
|
|
o.Context = context.Background()
|
|
}
|
|
o.Context = context.WithValue(o.Context, k, v)
|
|
}
|
|
}
|