ceremonyclient/go-libp2p/core/discovery/options.go
2023-08-20 23:07:43 -05:00

42 lines
890 B
Go

package discovery
import "time"
// DiscoveryOpt is a single discovery option.
type Option func(opts *Options) error
// DiscoveryOpts is a set of discovery options.
type Options struct {
Ttl time.Duration
Limit int
// Other (implementation-specific) options
Other map[interface{}]interface{}
}
// Apply applies the given options to this DiscoveryOpts
func (opts *Options) Apply(options ...Option) error {
for _, o := range options {
if err := o(opts); err != nil {
return err
}
}
return nil
}
// TTL is an option that provides a hint for the duration of an advertisement
func TTL(ttl time.Duration) Option {
return func(opts *Options) error {
opts.Ttl = ttl
return nil
}
}
// Limit is an option that provides an upper bound on the peer count for discovery
func Limit(limit int) Option {
return func(opts *Options) error {
opts.Limit = limit
return nil
}
}