1 /* mlockall -- lock in core all the pages in this process. Hurd version.
2 Copyright (C) 2001-2022 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 <sys/types.h>
20 #include <sys/mman.h>
21 #include <errno.h>
22 #include <hurd.h>
23 #include <mach/mach_host.h>
24
25 /* Cause all currently mapped pages of the process to be memory resident
26 until unlocked by a call to the `munlockall', until the process exits,
27 or until the process calls `execve'. */
28
29 int
mlockall(int flags)30 mlockall (int flags)
31 {
32 mach_port_t host;
33 error_t err;
34
35 err = __get_privileged_ports (&host, NULL);
36 if (err)
37 return __hurd_fail (err);
38
39 err = __vm_wire_all (host, __mach_task_self (), flags);
40 __mach_port_deallocate (__mach_task_self (), host);
41 return err ? __hurd_fail (err) : 0;
42 }
43