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* fhandler_console.cc (fhandler_console::read): Make restartable and 

cancelable.
This commit is contained in:
Corinna Vinschen 2011-05-02 17:38:16 +00:00
parent d85a0c243b
commit e4f70cddcd
2 changed files with 19 additions and 12 deletions
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5
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,8 @@
2011-05-02 Corinna Vinschen <corinna@vinschen.de>
* fhandler_console.cc (fhandler_console::read): Make restartable and
cancelable.
2011-05-02 Christopher Faylor <me.cygwin2011@cgf.cx>
* strace.cc (strace::vprntf): Avoid closing unopened handle.

26
winsup/cygwin/fhandler_console.cc
View File

@ -262,19 +262,11 @@ fhandler_console::read (void *pv, size_t& buflen)
return;
}
HANDLE w4[2];
DWORD nwait;
HANDLE w4[3] = { h, signal_arrived, pthread::get_cancel_event () };
DWORD nwait = w4[2] ? 3 : 2;
DWORD timeout = is_nonblocking () ? 0 : INFINITE;
char tmp[60];
w4[0] = h;
if (&_my_tls != _main_tls)
nwait = 1;
else
{
w4[1] = signal_arrived;
nwait = 2;
}
termios ti = tc->ti;
for (;;)
{
@ -286,12 +278,22 @@ fhandler_console::read (void *pv, size_t& buflen)
}
set_cursor_maybe (); /* to make cursor appear on the screen immediately */
switch (WaitForMultipleObjects (nwait, w4, FALSE, INFINITE))
restart:
switch (WaitForMultipleObjects (nwait, w4, FALSE, timeout))
{
case WAIT_OBJECT_0:
break;
case WAIT_OBJECT_0 + 1:
if (_my_tls.call_signal_handler ())
goto restart;
goto sig_exit;
case WAIT_OBJECT_0 + 2:
pthread::static_cancel_self ();
/*NOTREACHED*/
case WAIT_TIMEOUT:
set_sig_errno (EAGAIN);
buflen = (size_t) -1;
return;
default:
goto err;
}