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60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/* lockfile - Handle locking and unlocking of streams. Hurd pthread version.
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Copyright (C) 2000-2020 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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#include <pthread.h> /* Must come before <stdio.h>! */
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#include <stdio.h>
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void
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_cthreads_flockfile (FILE *fp)
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{
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_IO_lock_lock (*fp->_lock);
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}
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void
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_cthreads_funlockfile (FILE *fp)
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{
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_IO_lock_unlock (*fp->_lock);
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}
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int
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_cthreads_ftrylockfile (FILE *fp)
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{
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return __libc_lock_trylock_recursive (*fp->_lock);
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}
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#undef _IO_flockfile
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#undef _IO_funlockfile
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#undef _IO_ftrylockfile
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#undef flockfile
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#undef funlockfile
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#undef ftrylockfile
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void _IO_flockfile (FILE *)
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__attribute__ ((alias ("_cthreads_flockfile")));
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void _IO_funlockfile (FILE *)
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__attribute__ ((alias ("_cthreads_funlockfile")));
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int _IO_ftrylockfile (FILE *)
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__attribute__ ((alias ("_cthreads_ftrylockfile")));
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void flockfile (FILE *)
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__attribute__ ((weak, alias ("_cthreads_flockfile")));
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void funlockfile (FILE *)
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__attribute__ ((weak, alias ("_cthreads_funlockfile")));
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int ftrylockfile (FILE *)
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__attribute__ ((weak, alias ("_cthreads_ftrylockfile")));
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