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36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
/* Copyright (C) 1991-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <limits.h>
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#include <unistd.h>
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#include <sys/resource.h>
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/* Return the maximum number of file descriptors
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the current process could possibly have. */
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int
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__getdtablesize (void)
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{
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struct rlimit ru;
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/* This should even work if `getrlimit' is not implemented. POSIX.1
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does not define this function but we will generate a stub which
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returns -1. */
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return __getrlimit (RLIMIT_NOFILE, &ru) < 0 ? OPEN_MAX : ru.rlim_cur;
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}
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weak_alias (__getdtablesize, getdtablesize)
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