1 /* Cleanup function for `struct hurd_port' users.
2 Copyright (C) 1995-2022 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, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <mach.h>
20 #include <hurd/port.h>
21
22 /* The last user of the send right CLEANUP_DATA is now doing
23 `longjmp (ENV, VAL)', and this will unwind the frame of
24 that last user. Deallocate the right he will never get back to using. */
25
26 void
_hurd_port_cleanup(void * cleanup_data,jmp_buf env,int val)27 _hurd_port_cleanup (void *cleanup_data, jmp_buf env, int val)
28 {
29 __mach_port_deallocate (__mach_task_self (), (mach_port_t) cleanup_data);
30 }
31
32 /* We were cancelled while using a port, and called from the cleanup unwinding.
33 */
34
35 void
_hurd_port_use_cleanup(void * arg)36 _hurd_port_use_cleanup (void *arg)
37 {
38 struct _hurd_port_use_data *data = arg;
39
40 _hurd_port_free (data->p, &data->link, data->port);
41 }
42