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* fhandler_tty.cc (fhandler_tty_slave::ioctl): Do nothing if the new window

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size is equal to the old one.  Send SIGWINCH if slave connected to a pseudo
tty.
(fhandler_pty_master::ioctl): Do nothing if the new window size is equal to the
old one.
This commit is contained in:
Christopher Faylor
2002-11-04 01:10:38 +00:00
parent 3593c18730
commit 2601ab5778
2 changed files with 32 additions and 9 deletions
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33
winsup/cygwin/fhandler_tty.cc
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@@ -949,18 +949,29 @@ fhandler_tty_slave::ioctl (unsigned int cmd, void *arg)
get_ttyp ()->arg.winsize = get_ttyp ()->winsize;
if (ioctl_request_event)
SetEvent (ioctl_request_event);
* (struct winsize *) arg = get_ttyp ()->arg.winsize;
*(struct winsize *) arg = get_ttyp ()->arg.winsize;
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
get_ttyp ()->winsize = get_ttyp ()->arg.winsize;
break;
case TIOCSWINSZ:
get_ttyp ()->ioctl_retval = -1;
get_ttyp ()->arg.winsize = * (struct winsize *) arg;
if (ioctl_request_event)
SetEvent (ioctl_request_event);
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
if (get_ttyp ()->winsize.ws_row != ((struct winsize *) arg)->ws_row
|| get_ttyp ()->winsize.ws_col != ((struct winsize *) arg)->ws_col)
{
get_ttyp ()->arg.winsize = *(struct winsize *) arg;
if (ioctl_request_event)
{
get_ttyp ()->ioctl_retval = -1;
SetEvent (ioctl_request_event);
}
else
{
get_ttyp ()->winsize = *(struct winsize *) arg;
kill (-get_ttyp ()->getpgid (), SIGWINCH);
}
if (ioctl_done_event)
WaitForSingleObject (ioctl_done_event, INFINITE);
}
break;
}
@@ -1103,8 +1114,12 @@ fhandler_pty_master::ioctl (unsigned int cmd, void *arg)
* (struct winsize *) arg = get_ttyp ()->winsize;
break;
case TIOCSWINSZ:
get_ttyp ()->winsize = * (struct winsize *) arg;
kill (-get_ttyp ()->getpgid (), SIGWINCH);
if (get_ttyp ()->winsize.ws_row != ((struct winsize *) arg)->ws_row
|| get_ttyp ()->winsize.ws_col != ((struct winsize *) arg)->ws_col)
{
get_ttyp ()->winsize = * (struct winsize *) arg;
kill (-get_ttyp ()->getpgid (), SIGWINCH);
}
break;
case FIONBIO:
set_nonblocking (*(int *) arg);