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64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _LVM_FILE_H
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#define _LVM_FILE_H
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/*
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* Create a temporary filename, and opens a descriptor to the file.
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*/
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int create_temp_name(const char *dir, char *buffer, size_t len, int *fd,
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unsigned *seed);
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/*
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* NFS-safe rename of a temporary file to a common name, designed
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* to avoid race conditions and not overwrite the destination if
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* it exists.
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*/
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int lvm_rename(const char *old, const char *new);
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/*
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* Return 1 if path exists else return 0
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*/
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int path_exists(const char *path);
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int dir_exists(const char *path);
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/*
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* Return 1 if dir is empty
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*/
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int is_empty_dir(const char *dir);
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/* Sync directory changes */
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void sync_dir(const char *file);
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/* fcntl locking wrappers */
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int fcntl_lock_file(const char *file, short lock_type, int warn_if_read_only);
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void fcntl_unlock_file(int lockfd);
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#define is_same_inode(buf1, buf2) \
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((buf1).st_ino == (buf2).st_ino && \
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(buf1).st_dev == (buf2).st_dev)
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/*
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* Close the specified stream, taking care to detect and diagnose any write
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* error. If there is an error, use the supplied file name in a diagnostic
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* that is reported via log_error or log_sys_error, as appropriate.
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* Use this function to close a stream when you've written data to it via
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* unchecked fprintf, fputc, etc. calls. Return 0 on success, EOF on failure.
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*/
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int lvm_fclose(FILE *fp, const char *filename);
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#endif
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