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1cd4fffcde
* .x-sc_prohibit_S_IS_definition: New file. * m4/gnulib-cache.m4: Add `sys_stat'. * libguile/filesys.c: Remove `S_IS*' macro definitions for Ultrix and MinGW.
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/* Provide a more complete sys/file.h.
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Copyright (C) 2007-2008 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program 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
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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/* Written by Richard W.M. Jones. */
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#ifndef _GL_SYS_FILE_H
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# if __GNUC__ >= 3
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@PRAGMA_SYSTEM_HEADER@
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# endif
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/* The include_next requires a split double-inclusion guard. */
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# if @HAVE_SYS_FILE_H@
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# @INCLUDE_NEXT@ @NEXT_SYS_FILE_H@
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# endif
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#ifndef _GL_SYS_FILE_H
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#define _GL_SYS_FILE_H
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#if @GNULIB_FLOCK@
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/* Apply or remove advisory locks on an open file.
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Return 0 if successful, otherwise -1 and errno set. */
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# if !@HAVE_FLOCK@
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extern int flock (int fd, int operation);
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/* Operations for the 'flock' call (same as Linux kernel constants). */
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#define LOCK_SH 1 /* Shared lock. */
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#define LOCK_EX 2 /* Exclusive lock. */
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#define LOCK_UN 8 /* Unlock. */
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/* Can be OR'd in to one of the above. */
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#define LOCK_NB 4 /* Don't block when locking. */
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# endif
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#elif defined GNULIB_POSIXCHECK
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# undef flock
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# define flock(fd,op) \
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(GL_LINK_WARNING ("flock is unportable - " \
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"use gnulib module flock for portability"), \
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flock ((fd), (op)))
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#endif
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#endif /* _GL_SYS_FILE_H */
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#endif /* _GL_SYS_FILE_H */
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