terraform/internal/helper/wrappedstreams/streams_other.go

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// +build !windows
package wrappedstreams
import (
"os"
"sync"
)
var initOnce sync.Once
func initPlatform() {
// These must be initialized lazily, once it's been determined that this is
// a wrapped process.
initOnce.Do(func() {
// The standard streams are passed in via extra file descriptors.
wrappedStdin = os.NewFile(uintptr(3), "stdin")
wrappedStdout = os.NewFile(uintptr(4), "stdout")
wrappedStderr = os.NewFile(uintptr(5), "stderr")
})
}