68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
/* Copyright (C) 1991, 1992 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <ansidecl.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <hurd.h>
|
|
|
|
ssize_t
|
|
DEFUN(__write, (fd, buf, nbytes),
|
|
int fd AND CONST PTR buf AND size_t nbytes)
|
|
{
|
|
error_t err;
|
|
size_t wrote;
|
|
|
|
data = buf;
|
|
!! _HURD_DPORT_USE
|
|
(fd,
|
|
({
|
|
call:
|
|
err = __io_write (port, buf, nbytes, -1, &wrote);
|
|
if (ctty != MACH_PORT_NULL && err == EBACKGROUND)
|
|
{
|
|
struct _hurd_sigstate *ss
|
|
= _hurd_thread_sigstate (__mach_thread_self ());
|
|
if (_hurd_orphaned ||
|
|
__sigismember (SIGTTOU, &ss->blocked) ||
|
|
ss->actions[SIGTTOU].sa_handler == SIG_IGN)
|
|
{
|
|
/* We are orphaned, or are blocking or ignoring SIGTTOU.
|
|
Return EIO instead of stopping. */
|
|
__mutex_unlock (&ss->lock);
|
|
err = EIO;
|
|
}
|
|
else
|
|
{
|
|
const int restart = ss->actions[SIGTTOU].sa_flags & SA_RESTART;
|
|
_hurd_raise_signal (ss, SIGTTOU, 0); /* Unlocks SS->lock. */
|
|
if (restart)
|
|
goto call;
|
|
else
|
|
err = EINTR; /* XXX Is this right? */
|
|
}
|
|
}
|
|
}));
|
|
|
|
if (err)
|
|
return __hurd_dfail (fd, err);
|
|
|
|
return wrote;
|
|
}
|
|
|