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Restore terminal attributes for tty based monitor

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Patch http://permalink.gmane.org/gmane.comp.emulators.qemu/63472 handle
close when using tty devices (like /dev/ttyS0),
yet tty based monitor are not restoring terminal attributes (as done
with stdio based monitor), when closing qemu after that command:
$ qemu -monitor /dev/tty
the terminal is not responding until you write reset (blindly),
this patch fix it

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Shahar Havivi 2010-02-26 11:34:59 +02:00 committed by Anthony Liguori
parent 7ffb82ca6e
commit 2d753894c7
1 changed files with 8 additions and 0 deletions
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8
qemu-char.c
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@ -1002,6 +1002,7 @@ static void tty_serial_init(int fd, int speed,
speed, parity, data_bits, stop_bits);
#endif
tcgetattr (fd, &tty);
oldtty = tty;
#define check_speed(val) if (speed <= val) { spd = B##val; break; }
speed = speed * 10 / 11;
@ -1173,6 +1174,11 @@ static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
return 0;
}
static void tty_exit(void)
{
tcsetattr(0, TCSANOW, &oldtty);
}
static void qemu_chr_close_tty(CharDriverState *chr)
{
FDCharDriver *s = chr->opaque;
@ -1207,6 +1213,8 @@ static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
}
chr->chr_ioctl = tty_serial_ioctl;
chr->chr_close = qemu_chr_close_tty;
if (!term_atexit_done++)
atexit(tty_exit);
return chr;
}
#else /* ! __linux__ && ! __sun__ */