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newlib-cygwin/winsup/cygwin/release/1.7.36

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* fhandler.h (fhandler_base::get_echo_handle): New virtual method. (class fhandler_pty_master): Add echo_r and echo_w handles constituting read and write side of new echo pipe. * select.cc (peek_pipe): On pty masters, check additionally if input from the echo pipe is available. * fhandler_tty.cc (fhandler_pty_master::doecho): Drop output_mutex locking. Write output to echo pipe. (fhandler_pty_master::process_slave_output): Check if input is available in echo pipe and prefer to read from it, if so. (fhandler_pty_slave::write): Drop output_mutex locking. (fhandler_pty_master::fhandler_pty_master): Initialize echo pipe handles to NULL. (fhandler_pty_master::close): Close and NULL echo pipe handles. (fhandler_pty_master::setup): Create echo pipe, close in case of error.
2015-03-05 20:57:34 +08:00
What's new:
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What changed:
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Bug Fixes
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- Fix potential hang in pseudo ttys when generating ECHO output while the slave
is flooding the pty with output.
Addresses: https://cygwin.com/ml/cygwin/2015-03/msg00019.html
* tty.h (tty::set_master_ctl_closed): Rename from set_master_closed. (tty::is_master_closed): Drop method. * fhandler_tty.cc (fhandler_pty_slave::open): Remove code prematurely bailing out if master control thread is not running. (fhandler_pty_slave::read): Don't generate SIGHUP if master control thread is not running. (fhandler_pty_master::close): Rearrange code to avoid stopping master control thread twice in multi-threaded scenarios.
2015-03-05 21:58:03 +08:00
- Fix potential premature SIGHUP in pty code.
Addresses: https://cygwin.com/ml/cygwin/2015-03/msg00070.html