1: /* Copyright (C) 1994, 1997 Free Software Foundation, Inc.
    2:    This file is part of the GNU C Library.
    3: 
    4:    The GNU C Library is free software; you can redistribute it and/or
    5:    modify it under the terms of the GNU Lesser General Public
    6:    License as published by the Free Software Foundation; either
    7:    version 2.1 of the License, or (at your option) any later version.
    8: 
    9:    The GNU C Library is distributed in the hope that it will be useful,
   10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Lesser General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Lesser General Public
   15:    License along with the GNU C Library; if not, write to the Free
   16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   17:    02111-1307 USA.  */
   18: 
   19: #include <hurd.h>
   20: #include <hurd/fd.h>
   21: 
   22: /* Allocate a new file descriptor and install PORT in it.  FLAGS are as for
   23:    `open'; only O_IGNORE_CTTY is meaningful.
   24: 
   25:    If the descriptor table is full, set errno, and return -1.
   26:    If DEALLOC is nonzero, deallocate PORT first.  */
   27: int
   28: _hurd_intern_fd (io_t port, int flags, int dealloc)
   29: {
   30:   int fd;
   31:   struct hurd_fd *d;
   32: 
   33:   HURD_CRITICAL_BEGIN;
   34:   d = _hurd_alloc_fd (&fd, 0);
   35:   if (d != NULL)
   36:     {
   37:       _hurd_port2fd (d, port, flags);
   38:       __spin_unlock (&d->port.lock);
   39:     }
   40:   HURD_CRITICAL_END;
   41: 
   42:   if (d == NULL)
   43:     {
   44:       if (dealloc)
   45:         __mach_port_deallocate (__mach_task_self (), port);
   46:       return -1;
   47:     }
   48: 
   49:   return fd;
   50: }