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* fhandler_termios.cc (fhandler_termios::line_edit): Don't manipulate

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output_mutex on CTRL-S/CTRL-Q to avoid a deadlock.
* fhandler_tty.cc (fhandler_pty_slave::write): Loop when output_stopped is
detected before acquiring output_mutex.  Acquire output_mutex in the loop for
each write.
* tty.h: Remove some obsolete defines.
(tty_min::output_stopped): Make 'bool'.
This commit is contained in:
Christopher Faylor
2012-10-12 01:19:04 +00:00
parent 52985c1686
commit fe0cb31137
4 changed files with 24 additions and 16 deletions
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8
winsup/cygwin/fhandler_termios.cc
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@@ -286,17 +286,13 @@ fhandler_termios::line_edit (const char *rptr, int nread, termios& ti)
if (CCEQ (ti.c_cc[VSTOP], c))
{
if (!tc ()->output_stopped)
{
tc ()->output_stopped = 1;
acquire_output_mutex (INFINITE);
}
tc ()->output_stopped = true;
continue;
}
else if (CCEQ (ti.c_cc[VSTART], c))
{
restart_output:
tc ()->output_stopped = 0;
release_output_mutex ();
tc ()->output_stopped = false;
continue;
}
else if ((ti.c_iflag & IXANY) && tc ()->output_stopped)