1 data race while running the example code

[vjeantet]

Hello,

I ran
$ go run -race main.go

main.go is the example code found in README

Bellow is the output with the datarace

4
4
==================
WARNING: DATA RACE
Read by goroutine 8:
  github.com/pedronasser/go-piper/piper.(*Pipe).Closed()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:309 +0x3b
  github.com/pedronasser/go-piper/piper.func·001()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:160 +0x447

Previous write by goroutine 5:
  github.com/pedronasser/go-piper/piper.(*Pipe).Close()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:304 +0x3b
  github.com/pedronasser/go-piper/piper.func·001()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:162 +0x4b2

Goroutine 8 (running) created at:
  github.com/pedronasser/go-piper/piper.(*Piper).runPipe()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:168 +0x3f5
  github.com/pedronasser/go-piper/piper.(*Piper).run()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:125 +0x3a0
  github.com/pedronasser/go-piper/piper.newPiper()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:74 +0x3d5
  github.com/pedronasser/go-piper/piper.New()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:50 +0x70
  main.main()
      /Users/sodadi/go/src/home/test-gopipe/main.go:22 +0x260

Goroutine 5 (finished) created at:
  github.com/pedronasser/go-piper/piper.(*Piper).runPipe()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:168 +0x3f5
  github.com/pedronasser/go-piper/piper.(*Piper).run()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:125 +0x3a0
  github.com/pedronasser/go-piper/piper.newPiper()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:74 +0x3d5
  github.com/pedronasser/go-piper/piper.New()
      /Users/sodadi/go/src/github.com/pedronasser/go-piper/piper/piper.go:50 +0x70
  main.main()
      /Users/sodadi/go/src/home/test-gopipe/main.go:22 +0x260
==================
Found 1 data race(s)
exit status 66

[pedronasser]

Sorry, forgot to test for race last time.
Just added a mutex to the Pipe struct and problem solved.
Thank you for the issue.