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author | Roland McGrath <roland@gnu.org> | 2003-04-02 00:11:05 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2003-04-02 00:11:05 +0000 |
commit | 9a197dcc6a93d7938bede6ca85fd1f769424cf17 (patch) | |
tree | b369b79b99a6a3869ae2c08bba80b81a7c46f095 /linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c | |
parent | de58be8a098dfb710f0b6167c8fabc265f2920de (diff) | |
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* sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c: Use the
IA-64 version.
Diffstat (limited to 'linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c')
-rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c b/linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c new file mode 100644 index 0000000000..5528c55ca5 --- /dev/null +++ b/linuxthreads/sysdeps/unix/sysv/linux/pt-sigsuspend.c @@ -0,0 +1,56 @@ +/* Internal sigsuspend system call for LinuxThreads. Generic Linux version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <signal.h> +#include <unistd.h> + +#include <sysdep.h> +#include <sys/syscall.h> +#include <linuxthreads/internals.h> + +#include "kernel-features.h" + +void +__pthread_sigsuspend (const sigset_t *set) +{ + INTERNAL_SYSCALL_DECL (err); +#if !__ASSUME_REALTIME_SIGNALS + static int __pthread_missing_rt_sigs; + +# ifdef __NR_rt_sigsuspend + /* First try the RT signals. */ + if (!__pthread_missing_rt_sigs) + { + /* XXX The size argument hopefully will have to be changed to the + real size of the user-level sigset_t. */ + int r; + r = INTERNAL_SYSCALL (rt_sigsuspend, err, 2, set, _NSIG / 8); + if (INTERNAL_SYSCALL_ERRNO (r, err) != ENOSYS) + return; + + __pthread_missing_rt_sigs = 1; + } +# endif + + INTERNAL_SYSCALL (sigsuspend, err, 3, 0, 0, set->__val[0]); +#else + INTERNAL_SYSCALL (rt_sigsuspend, err, 2, set, _NSIG / 8); +#endif +} |