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e874d3d189
The nptl version is used as default, since now with symbol always present the single-thread optimization is tricky. Hurd is not change, it is used it own lock scheme (which call _cthreads_ftrylockfile). Checked on x86_64-linux-gnu.
30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
/* Try locking I/O stream. Singlethreaded version.
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Copyright (C) 1996-2021 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 <stdio.h>
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#include <stdio-lock.h>
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#include <sys/single_threaded.h>
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int
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__ftrylockfile (FILE *stream)
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{
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return _IO_lock_trylock (*stream->_lock);
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}
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weak_alias (__ftrylockfile, ftrylockfile);
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weak_alias (__ftrylockfile, _IO_ftrylockfile)
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