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40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
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/* futex operations for glibc-internal use. Stub version; do not include
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this file directly.
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Copyright (C) 2014-2020 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 STUB_FUTEX_INTERNAL_H
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#define STUB_FUTEX_INTERNAL_H
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#include <pthread.h>
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/* Returns EINVAL if PSHARED is neither PTHREAD_PROCESS_PRIVATE nor
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PTHREAD_PROCESS_SHARED; otherwise, returns 0 if PSHARED is supported, and
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ENOTSUP if not. */
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static __always_inline int
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futex_supports_pshared (int pshared)
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{
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if (__glibc_likely (pshared == PTHREAD_PROCESS_PRIVATE))
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return 0;
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else if (pshared == PTHREAD_PROCESS_SHARED)
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return 0;
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else
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return EINVAL;
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}
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#endif /* futex-internal.h */
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