diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/pause.c')
-rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/pause.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/pause.c b/REORG.TODO/sysdeps/unix/sysv/linux/pause.c new file mode 100644 index 0000000000..4ccce9ebd8 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/pause.c @@ -0,0 +1,35 @@ +/* Linux pause syscall implementation. + Copyright (C) 2017 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, see + <http://www.gnu.org/licenses/>. */ + +#include <signal.h> +#include <unistd.h> +#include <sysdep-cancel.h> + +/* Suspend the process until a signal arrives. + This always returns -1 and sets errno to EINTR. */ + +int +__libc_pause (void) +{ +#ifdef __NR_pause + return SYSCALL_CANCEL (pause); +#else + return SYSCALL_CANCEL (ppoll, NULL, 0, NULL, NULL); +#endif +} +weak_alias (__libc_pause, pause) |