mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
5a82c74822
Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/* _hurd_ctty_input -- Do an input RPC and generate SIGTTIN if necessary.
|
|
Copyright (C) 1995-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <hurd.h>
|
|
#include <hurd/signal.h>
|
|
|
|
/* Call *RPC on PORT and/or CTTY. If a call on CTTY returns EBACKGROUND,
|
|
generate SIGTTIN or EIO as appropriate. */
|
|
|
|
error_t
|
|
_hurd_ctty_input (io_t port, io_t ctty, error_t (*rpc) (io_t))
|
|
{
|
|
error_t err;
|
|
|
|
if (ctty == MACH_PORT_NULL)
|
|
return (*rpc) (port);
|
|
|
|
do
|
|
{
|
|
err = (*rpc) (ctty);
|
|
if (err == EBACKGROUND)
|
|
{
|
|
/* We are a background job and tried to read from the tty.
|
|
We should probably get a SIGTTIN signal. */
|
|
if (_hurd_orphaned)
|
|
/* Our process group is orphaned. Don't stop; just fail. */
|
|
err = EIO;
|
|
else
|
|
{
|
|
struct hurd_sigstate *ss = _hurd_self_sigstate ();
|
|
__spin_lock (&ss->lock);
|
|
if (__sigismember (&ss->blocked, SIGTTIN)
|
|
|| ss->actions[SIGTTIN].sa_handler == SIG_IGN)
|
|
/* We are blocking or ignoring SIGTTIN. Just fail. */
|
|
err = EIO;
|
|
__spin_unlock (&ss->lock);
|
|
|
|
if (err == EBACKGROUND)
|
|
{
|
|
/* Send a SIGTTIN signal to our process group.
|
|
|
|
We must remember here not to clobber ERR, since
|
|
the loop condition below uses it to recall that
|
|
we should retry after a stop. */
|
|
|
|
__USEPORT (CTTYID, _hurd_sig_post (0, SIGTTIN, port));
|
|
/* XXX what to do if error here? */
|
|
|
|
/* At this point we should have just run the handler for
|
|
SIGTTIN or resumed after being stopped. Now this is
|
|
still a "system call", so check to see if we should
|
|
restart it. */
|
|
__spin_lock (&ss->lock);
|
|
if (!(ss->actions[SIGTTIN].sa_flags & SA_RESTART))
|
|
err = EINTR;
|
|
__spin_unlock (&ss->lock);
|
|
}
|
|
}
|
|
}
|
|
/* If the last RPC generated a SIGTTIN, loop to try it again. */
|
|
} while (err == EBACKGROUND);
|
|
|
|
return err;
|
|
}
|