Function mkfifo

internal/tools/nonregular_unix_test.go:22–29

mkfifo creates a FIFO in a temp dir; opening it for read OR write would block forever with no peer, which is exactly what the guards must prevent.

(t *testing.T)

// mkfifo creates a FIFO in a temp dir; opening it for read OR write would
// block forever with no peer, which is exactly what the guards must prevent.
func mkfifo(t *testing.T) string {
	t.Helper()
	path := filepath.Join(t.TempDir(), "pipe")
	if err := syscall.Mkfifo(path, 0o600); err != nil {
		t.Skipf("mkfifo unavailable: %v", err)
	}
	return path
}

// TestReadFileRefusesNonRegular: read_file on a FIFO would block forever in
// open(2) waiting for a writer, leaking the tool goroutine past Ctrl+C (which