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go-fastping/README.md
Tatsushi Demachi 85b47b7a02 Write README.md
2013-09-06 00:35:58 +09:00

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go-fastping
===========
go-fastping is a Go language port of Marc Lehmann's AnyEvent::FastPing Perl
module to send ICMP ECHO REQUEST packets quickly. Original Perl module is
available at
http://search.cpan.org/~mlehmann/AnyEvent-FastPing-2.01/
It hasn't been fully implemented original functions yet and only for IPv4 now.
## Installation
Install and update this go package with `go get -u github.com/tatsushid/go-fastping`
## Examples
Import this package and write
```go
p := fastping.NewPinger()
ra, err := net.ResolveIPAddr("ip4:icmp", os.Args[1])
if err != nil {
fmt.Println(err)
os.Exit(1)
}
p.AddIPAddr(ra)
p.AddHandler("receive", func(addr *net.IPAddr, rtt time.Duration) {
fmt.Printf("IP Addr: %s receive, RTT: %v\n", addr.String(), rtt)
})
p.AddHandler("idle", func() {
fmt.Println("finish")
})
p.Run()
```
It sends an ICMP packet and wait a response. If it receives a response, it
calls "receive" callback. After that, MaxRTT time passed, it calls "idle"
callback. For more detail, refer [godoc][godoc] and If you need more example,
please see "cmd/ping/ping.go".
## License
go-fastping is under MIT License. See the [LICENSE][license] file for details.
[godoc]: http://godoc.org/github.com/tatsushid/go-fastping
[license]: https://github.com/tatsushid/go-fastping/blob/master/LICENSE