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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/mach/hurd/sigprocmask.c
1 /* Copyright (C) 1991-2017 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
21 #include <hurd/signal.h>
24 /* If SET is not NULL, modify the current set of blocked signals
25 according to HOW, which may be SIG_BLOCK, SIG_UNBLOCK or SIG_SETMASK.
26 If OSET is not NULL, store the old set of blocked signals in *OSET. */
28 __sigprocmask (int how
, const sigset_t
*set
, sigset_t
*oset
)
30 struct hurd_sigstate
*ss
;
37 ss
= _hurd_self_sigstate ();
39 __spin_lock (&ss
->lock
);
48 __sigorset (&ss
->blocked
, &ss
->blocked
, &new);
60 __spin_unlock (&ss
->lock
);
65 ss
->blocked
&= ~_SIG_CANT_MASK
;
68 pending
= ss
->pending
& ~ss
->blocked
;
70 __spin_unlock (&ss
->lock
);
76 /* Send a message to the signal thread so it
77 will wake up and check for pending signals. */
78 __msg_sig_post (_hurd_msgport
, 0, 0, __mach_task_self ());
83 libc_hidden_def (__sigprocmask
)
84 weak_alias (__sigprocmask
, sigprocmask
)