1 /* Copyright (C) 1997-2015 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/>. */
24 #include <nptl/pthreadP.h>
25 #include <sysdep-cancel.h>
26 #include <sys/syscall.h>
28 #ifdef __NR_rt_sigtimedwait
31 do_sigwaitinfo (const sigset_t
*set
, siginfo_t
*info
)
36 && (__builtin_expect (__sigismember (set
, SIGCANCEL
), 0)
38 || __builtin_expect (__sigismember (set
, SIGSETXID
), 0)
42 /* Create a temporary mask without the bit for SIGCANCEL set. */
43 // We are not copying more than we have to.
44 memcpy (&tmpset
, set
, _NSIG
/ 8);
45 __sigdelset (&tmpset
, SIGCANCEL
);
47 __sigdelset (&tmpset
, SIGSETXID
);
53 /* XXX The size argument hopefully will have to be changed to the
54 real size of the user-level sigset_t. */
55 int result
= INLINE_SYSCALL (rt_sigtimedwait
, 4, set
,
56 info
, NULL
, _NSIG
/ 8);
58 /* The kernel generates a SI_TKILL code in si_code in case tkill is
59 used. tkill is transparently used in raise(). Since having
60 SI_TKILL as a code is useful in general we fold the results
62 if (result
!= -1 && info
!= NULL
&& info
->si_code
== SI_TKILL
)
63 info
->si_code
= SI_USER
;
69 /* Return any pending signal or wait for one for the given time. */
71 __sigwaitinfo (const sigset_t
*set
, siginfo_t
*info
)
74 return do_sigwaitinfo (set
, info
);
76 int oldtype
= LIBC_CANCEL_ASYNC ();
78 /* XXX The size argument hopefully will have to be changed to the
79 real size of the user-level sigset_t. */
80 int result
= do_sigwaitinfo (set
, info
);
82 LIBC_CANCEL_RESET (oldtype
);
86 libc_hidden_def (__sigwaitinfo
)
87 weak_alias (__sigwaitinfo
, sigwaitinfo
)
89 # include <signal/sigwaitinfo.c>
91 strong_alias (__sigwaitinfo
, __libc_sigwaitinfo
)