hurd/port-cleanup.c

   1 /* Cleanup function for `struct hurd_port' users who longjmp.
   2    Copyright (C) 1995, 1997 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <mach.h>
  21 #include <hurd/port.h>
  22
  23 /* The last user of the send right CLEANUP_DATA is now doing
  24    `longjmp (ENV, VAL)', and this will unwind the frame of
  25    that last user.  Deallocate the right he will never get back to using.  */
  26
  27 void
  28 _hurd_port_cleanup (void *cleanup_data, jmp_buf env, int val)
  29 {
  30   __mach_port_deallocate (__mach_task_self (), (mach_port_t) cleanup_data);
  31 }