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glibc  2.9
port-cleanup.c
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00001 /* Cleanup function for `struct hurd_port' users who longjmp.
00002    Copyright (C) 1995, 1997 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <mach.h>
00021 #include <hurd/port.h>
00022 
00023 /* The last user of the send right CLEANUP_DATA is now doing
00024    `longjmp (ENV, VAL)', and this will unwind the frame of
00025    that last user.  Deallocate the right he will never get back to using.  */
00026 
00027 void
00028 _hurd_port_cleanup (void *cleanup_data, jmp_buf env, int val)
00029 {
00030   __mach_port_deallocate (__mach_task_self (), (mach_port_t) cleanup_data);
00031 }