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34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
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/* Support for single-thread optimizations.
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Copyright (C) 2020 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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#ifndef _SYS_SINGLE_THREADED_H
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#define _SYS_SINGLE_THREADED_H
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#include <features.h>
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__BEGIN_DECLS
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/* If this variable is non-zero, then the current thread is the only
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thread in the process image. If it is zero, the process might be
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multi-threaded. */
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extern char __libc_single_threaded;
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__END_DECLS
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#endif /* _SYS_SINGLE_THREADED_H */
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