71c00c200f
on windows: if the term is resized when ReadString is being called and no one is reading form ws, we get a panic: send on closed channel. It could make sense to poll getconsolescreenbufferinfo calls instead of this: something started from the sigwinch() func on unix: same story, sigwinch was listened upon by default but if the signals (chan sends) were not handled, this could cause a crash fix #7434
70 lines
1.1 KiB
Go
70 lines
1.1 KiB
Go
package tty
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import (
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"bufio"
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"os"
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"syscall"
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"errors"
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)
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type TTY struct {
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in *os.File
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bin *bufio.Reader
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out *os.File
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}
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func open() (*TTY, error) {
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tty := new(TTY)
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in, err := os.Open("/dev/cons")
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if err != nil {
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return nil, err
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}
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tty.in = in
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tty.bin = bufio.NewReader(in)
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out, err := os.OpenFile("/dev/cons", syscall.O_WRONLY, 0)
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if err != nil {
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return nil, err
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}
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tty.out = out
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return tty, nil
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}
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func (tty *TTY) buffered() bool {
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return tty.bin.Buffered() > 0
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}
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func (tty *TTY) readRune() (rune, error) {
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r, _, err := tty.bin.ReadRune()
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return r, err
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}
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func (tty *TTY) close() (err error) {
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if err2 := tty.in.Close(); err2 != nil {
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err = err2
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}
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if err2 := tty.out.Close(); err2 != nil {
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err = err2
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}
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return
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}
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func (tty *TTY) size() (int, int, error) {
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return 80, 24, nil
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}
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func (tty *TTY) sizePixel() (int, int, int, int, error) {
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x, y, _ := tty.size()
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return x, y, -1, -1, errors.New("no implemented method for querying size in pixels on Plan 9")
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}
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func (tty *TTY) input() *os.File {
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return tty.in
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}
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func (tty *TTY) output() *os.File {
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return tty.out
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}
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