terraform/vendor/github.com/moul/gotty-client/arch.go

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2017-01-20 16:59:14 +01:00
// +build !windows
package gottyclient
import (
"encoding/json"
"fmt"
"os"
"os/signal"
"syscall"
"unsafe"
)
func notifySignalSIGWINCH(c chan<- os.Signal) {
signal.Notify(c, syscall.SIGWINCH)
}
func resetSignalSIGWINCH() {
signal.Reset(syscall.SIGWINCH)
}
func syscallTIOCGWINSZ() ([]byte, error) {
ws := winsize{}
syscall.Syscall(syscall.SYS_IOCTL,
uintptr(0), uintptr(syscall.TIOCGWINSZ),
uintptr(unsafe.Pointer(&ws)))
b, err := json.Marshal(ws)
if err != nil {
return nil, fmt.Errorf("json.Marshal error: %v", err)
}
return b, err
}