It was reported that PTYs on Linux sometimes report POLLHUP, return a
partial read, but still return more data on the next read.
Libuv contains an optimization where it assumes a partial read after
POLLHUP means the next read can be skipped because it's going to fail
with EOF anyway. That assumption was thought to be always true but,
alas, it isn't.
The fact the optimization has been present for 13 years and this is the
first bug report about it, indicates how rare this particular condition
is, but of course we can't skim on correctness.
The reworked optimization only uses POLLHUP as an input signal when
POLLIN is not also set. That means we no longer have to track partial
reads because we're going to try and read anyway as long as POLLIN is
set. It seems to cause no measurable regressions on the test suite or
the (lightly tested) benchmarks.
Fixes: https://github.com/libuv/libuv/issues/4992
Switch from old-style ASSERT macro to new-style ASSERT_EQ,... macros.
Using new-style macros makes it easier to debug test failures
Fixes: https://github.com/libuv/libuv/issues/2974
Pass the loop to MAKE_VALGRIND_HAPPY() so it's explicit on which loop
needs to be cleaned up. Since it asserts on uv_loop_close(), need to
remove a couple of those that were being done before the call.
Cleanup where loop was assigned, so the entire test either uses loop or
uv_default_loop(). Not both.
Also take care of any reqs that may have been left uncleaned.
New Windows version requires `EventType` to be set to something
meaningful, otherwise WriteConsoleInputW() will fail with
`ERROR_INVALID_PARAMETER`. This sets it to `FOCUS_EVENT` which
is ignored by `uv_process_tty_read_raw_req()`.
Fixes: https://github.com/nodejs/node/issues/21773
PR-URL: https://github.com/libuv/libuv/pull/1989
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jameson Nash <vtjnash@gmail.com>
Previously, we required the user to specify the expected read/write
flags for a pipe or tty. But we've already been asking the OS to tell us
what they actually are (fcntl F_GETFL), so we can hopefully just use
that information directly.
Fixes: https://github.com/libuv/libuv/issues/1936
PR-URL: https://github.com/libuv/libuv/pull/1964
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Some long overdue refactoring that unifies more of the UNIX and Windows
backends.
PR-URL: https://github.com/libuv/libuv/pull/1904
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
This commit fixes the following warning:
warning C4047: char *' differs in levels of indirection from 'char
(*)[1]'
PR-URL: https://github.com/libuv/libuv/pull/1290
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Fixes an issue where the Windows-only tty_large_write attempts to write
an uninitialized buffer to the console.
PR-URL: https://github.com/libuv/libuv/pull/1212
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
autotools support only, gvp does not support kfreebsd detection.
PR-URL: https://github.com/libuv/libuv/pull/960
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Do not compile 'tty_pty' test for android.
PR-URL: https://github.com/libuv/libuv/pull/975
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Do not let `tty_pty` test fail if no terminals are available
to `openpty()`.
PR-URL: https://github.com/libuv/libuv/pull/919
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Closing the handle does not make ReadConsoleW exit reliably on
Windows 7 and above. Thus, after switching from line to raw mode,
keypresses were held until enter was pressed. This makes ReadConsoleW
exit by writing a return keypress to its input buffer, similar to
what was already done for raw mode.
Fixes: https://github.com/libuv/libuv/issues/852
PR-URL: https://github.com/libuv/libuv/pull/866
Reviewed-by: Bert Belder <bertbelder@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Find the real name of the tty using ttyname_r(3) instead of
opening "/dev/tty" which causes trouble if the fd doesn't point to the
controlling terminal.
PR-URL: https://github.com/libuv/libuv/pull/779
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
'/dev/random' causes 'isatty()' to return 1 on AIX[1]. This causes
an issue where 'dev/tty' is opened (hard coded in
src/unix/tty.c:uv_tty_init). Tried to replace the hardcoded value with
what is returned by 'ttyname()' but on AIX all that is returned is
'/dev/'.
This seems to be a bug with the AIX kernel.
[1]http://goo.gl/wGa7mf
PR-URL: https://github.com/libuv/libuv/pull/624
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
If the handle is closed when it wasn't initialized, uv_close will fail.
PR-URL: https://github.com/libuv/libuv/pull/279
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
uv_tty_reset_mode() is designed to be async signal-safe and is therefore
not allowed to clobber errno.
PR-URL: https://github.com/libuv/libuv/pull/259
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
The UV_TTY_MODE_* enumeration values were introduced in commit 025602d
("tty: implement binary I/O terminal mode") but the test was not updated
to use them. This commit rectifies that.
PR-URL: https://github.com/libuv/libuv/pull/259
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
This happens in certain build environments such as Jenkins if
some tweaking is not performed in the host system.
PR-URL: https://github.com/libuv/libuv/pull/22
test-tty.c currently assumes that a TTY is available to the test runner,
and fails hard if not. This may not be true on some autobuilding
environment, making the build fail as shown in [0].
Instead, let's properly skip the test in such cases.
[0] http://ur1.ca/fr5bd
Signed-off-by: Luca Bruno <lucab@debian.org>
This changes the prototype of uv_run() from:
int uv_run(uv_loop_t* loop);
To:
int uv_run(uv_loop_t* loop, uv_run_mode mode);
Where `mode` is UV_RUN_DEFAULT, UV_RUN_ONCE or UV_RUN_NOWAIT.
Fixes#683.
