diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/getdtsz.c')
-rw-r--r-- | REORG.TODO/sysdeps/mach/hurd/getdtsz.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/getdtsz.c b/REORG.TODO/sysdeps/mach/hurd/getdtsz.c new file mode 100644 index 0000000000..f44bdf9eac --- /dev/null +++ b/REORG.TODO/sysdeps/mach/hurd/getdtsz.c @@ -0,0 +1,43 @@ +/* Copyright (C) 1991-2017 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 <errno.h> +#include <unistd.h> +#include <hurd.h> +#include <hurd/fd.h> +#include <hurd/resource.h> + +/* Return the maximum number of file descriptors the current process + could possibly have (until it raises the resource limit). */ +int +__getdtablesize (void) +{ + rlim_t limit; + + HURD_CRITICAL_BEGIN; + __mutex_lock (&_hurd_rlimit_lock); + limit = _hurd_rlimits[RLIMIT_NOFILE].rlim_cur; + __mutex_unlock (&_hurd_rlimit_lock); + HURD_CRITICAL_END; + + /* RLIM_INFINITY is not meaningful to our caller. -1 is a good choice + because `sysconf (_SC_OPEN_MAX)' calls us, and -1 from sysconf means + "no determinable limit". */ + return limit == RLIM_INFINITY ? -1 : (int) limit; +} + +weak_alias (__getdtablesize, getdtablesize) |