1 /* Linux implementation of waitid.
2 Copyright (C) 2004 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
23 #include <kernel-features.h>
29 # if __ASSUME_WAITID_SYSCALL > 0
32 do_waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options)
34 /* The unused fifth argument is a `struct rusage *' that we could
35 pass if we were using waitid to simulate wait3/wait4. */
36 return INLINE_SYSCALL (waitid, 5, idtype, id, infop, options, NULL);
42 static int do_compat_waitid (idtype_t idtype, id_t id,
43 siginfo_t *infop, int options);
44 # define DO_WAITID do_compat_waitid
47 do_waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options)
49 static int waitid_works;
51 return INLINE_SYSCALL (waitid, 5, idtype, id, infop, options, NULL);
52 if (waitid_works == 0)
54 int result = INLINE_SYSCALL (waitid, 5,
55 idtype, id, infop, options, NULL);
56 if (result < 0 && errno == ENOSYS)
64 return do_compat_waitid (idtype, id, infop, options);
71 #include "sysdeps/posix/waitid.c"