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Languguage OS 2
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Languguage OS II Version 10-94 (Knowledge Media)(1994).ISO
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gnu
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glibc108.zip
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glibc108
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hurd
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fd-write.c
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1994-05-11
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/* Copyright (C) 1993, 1994 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 <errno.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/fd.h>
error_t
_hurd_fd_write (struct hurd_fd *fd, const void *buf, size_t *nbytes)
{
error_t err;
mach_msg_type_number_t wrote;
int noctty;
#ifdef notyet
struct _hurd_sigstate *ss = _hurd_self_sigstate ();
/* Don't use the ctty io port if we are orphaned, or are blocking or
ignoring SIGTTOU. */
noctty = (_hurd_orphaned ||
__sigismember (SIGTTOU, &ss->blocked) ||
ss->actions[SIGTTOU].sa_handler == SIG_IGN);
__mutex_unlock (&ss->lock);
#else
noctty = 1;
#endif
err = HURD_FD_PORT_USE
(fd,
({
call:
err = __io_write (noctty ? port : ctty, buf, *nbytes, -1, &wrote);
if (!noctty && ctty != MACH_PORT_NULL && err == EBACKGROUND)
{
#if 1
abort ();
#else
int restart;
__mutex_lock (&ss->lock);
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? */
#endif
}
err;
}));
if (! err)
*nbytes = wrote;
return err;
}