From 98d8dc64a9b9fc0dbd7af6cf2e4359403aaeb817 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Mon, 24 Feb 2003 03:51:24 +0000 Subject: 2003-02-23 Roland McGrath * sysdeps/posix/pause.c: New file. * sysdeps/unix/common/pause.c: File removed. --- sysdeps/posix/pause.c | 38 +++++++++++++++++++++++++++++++++++ sysdeps/unix/common/pause.c | 49 --------------------------------------------- 2 files changed, 38 insertions(+), 49 deletions(-) create mode 100644 sysdeps/posix/pause.c delete mode 100644 sysdeps/unix/common/pause.c (limited to 'sysdeps') 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 +#include + +/* 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) diff --git a/sysdeps/unix/common/pause.c b/sysdeps/unix/common/pause.c deleted file mode 100644 index 14b87e44d0..0000000000 --- a/sysdeps/unix/common/pause.c +++ /dev/null @@ -1,49 +0,0 @@ -/* Copyright (C) 1991, 1996, 2002, 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 -#include -#include - -/* Suspend the process until a signal arrives. - This always returns -1 and sets errno to EINTR. */ -static void -do_pause (void) -{ - sigset_t set; - - sigemptyset (&set); - - __sigsuspend (&set); -} - -int -__libc_pause (void) -{ - if (SINGLE_THREAD_P) - { - do_pause (); - return -1; - } - - int oldtype = LIBC_CANCEL_ASYNC (); - (void) do_pause (); - LIBC_CANCEL_RESET (oldtype); - return -1; -} -weak_alias (__libc_pause, pause) -- cgit 1.4.1