github.com/sagernet/sing@v0.2.6/common/bufio/deadline/check.go (about)

     1  package deadline
     2  
     3  import (
     4  	"github.com/sagernet/sing/common"
     5  	N "github.com/sagernet/sing/common/network"
     6  )
     7  
     8  type WithoutReadDeadline interface {
     9  	NeedAdditionalReadDeadline() bool
    10  }
    11  
    12  func NeedAdditionalReadDeadline(rawReader any) bool {
    13  	if deadlineReader, loaded := rawReader.(WithoutReadDeadline); loaded {
    14  		return deadlineReader.NeedAdditionalReadDeadline()
    15  	}
    16  	if upstream, hasUpstream := rawReader.(N.WithUpstreamReader); hasUpstream {
    17  		return NeedAdditionalReadDeadline(upstream.UpstreamReader())
    18  	}
    19  	if upstream, hasUpstream := rawReader.(common.WithUpstream); hasUpstream {
    20  		return NeedAdditionalReadDeadline(upstream.Upstream())
    21  	}
    22  	return false
    23  }