vendor/github.com/hashicorp/yamux/util.go

   1 package yamux
   2
   3 import (
   4         "sync"
   5         "time"
   6 )
   7
   8 var (
   9         timerPool = &sync.Pool{
  10                 New: func() interface{} {
  11                         timer := time.NewTimer(time.Hour * 1e6)
  12                         timer.Stop()
  13                         return timer
  14                 },
  15         }
  16 )
  17
  18 // asyncSendErr is used to try an async send of an error
  19 func asyncSendErr(ch chan error, err error) {
  20         if ch == nil {
  21                 return
  22         }
  23         select {
  24         case ch <- err:
  25         default:
  26         }
  27 }
  28
  29 // asyncNotify is used to signal a waiting goroutine
  30 func asyncNotify(ch chan struct{}) {
  31         select {
  32         case ch <- struct{}{}:
  33         default:
  34         }
  35 }
  36
  37 // min computes the minimum of two values
  38 func min(a, b uint32) uint32 {
  39         if a < b {
  40                 return a
  41         }
  42         return b
  43 }