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author | Roland McGrath <roland@gnu.org> | 2003-02-24 03:51:24 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2003-02-24 03:51:24 +0000 |
commit | 98d8dc64a9b9fc0dbd7af6cf2e4359403aaeb817 (patch) | |
tree | 96279a1c9c2b0bd5f8f6eeeb35c2aabb004bcb55 /sysdeps/posix/pause.c | |
parent | 5e47b76b5049f2449fc81e873bb87e6d06e3b2ef (diff) | |
download | glibc-98d8dc64a9b9fc0dbd7af6cf2e4359403aaeb817.tar.gz glibc-98d8dc64a9b9fc0dbd7af6cf2e4359403aaeb817.tar.xz glibc-98d8dc64a9b9fc0dbd7af6cf2e4359403aaeb817.zip |
2003-02-23 Roland McGrath <roland@redhat.com>
* sysdeps/posix/pause.c: New file. * sysdeps/unix/common/pause.c: File removed.
Diffstat (limited to 'sysdeps/posix/pause.c')
-rw-r--r-- | sysdeps/posix/pause.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sysdeps/posix/pause.c b/sysdeps/posix/pause.c new file mode 100644 index 0000000000..db2c54f29d --- /dev/null +++ b/sysdeps/posix/pause.c @@ -0,0 +1,38 @@ +/* pause -- suspend the process until a signal arrives. POSIX.1 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 <signal.h> +#include <unistd.h> + +/* Suspend the process until a signal arrives. + This always returns -1 and sets errno to EINTR. */ +int +__libc_pause (void) +{ + sigset_t set; + + __sigemptyset (&set); + __sigprocmask (SIG_BLOCK, NULL, &set); + + /* pause is a cancellation point, but so is sigsuspend. + So no need for anything special here. */ + + return __sigsuspend (&set); +} +weak_alias (__libc_pause, pause) |