/* $NetBSD: lvm-file.h,v 1.1.1.2 2009/02/18 11:16:46 haad Exp $ */ /* * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. * * This file is part of LVM2. * * This copyrighted material is made available to anyone wishing to use, * modify, copy, or redistribute it subject to the terms and conditions * of the GNU Lesser General Public License v.2.1. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LVM_FILE_H #define _LVM_FILE_H /* * Create a temporary filename, and opens a descriptor to the file. */ int create_temp_name(const char *dir, char *buffer, size_t len, int *fd, unsigned *seed); /* * NFS-safe rename of a temporary file to a common name, designed * to avoid race conditions and not overwrite the destination if * it exists. */ int lvm_rename(const char *old, const char *new); /* * Return 1 if path exists else return 0 */ int path_exists(const char *path); int dir_exists(const char *path); /* * Return 1 if dir is empty */ int is_empty_dir(const char *dir); /* Sync directory changes */ void sync_dir(const char *file); /* fcntl locking wrappers */ int fcntl_lock_file(const char *file, short lock_type, int warn_if_read_only); void fcntl_unlock_file(int lockfd); #define is_same_inode(buf1, buf2) \ ((buf1).st_ino == (buf2).st_ino && \ (buf1).st_dev == (buf2).st_dev) /* * Close the specified stream, taking care to detect and diagnose any write * error. If there is an error, use the supplied file name in a diagnostic * that is reported via log_error or log_sys_error, as appropriate. * Use this function to close a stream when you've written data to it via * unchecked fprintf, fputc, etc. calls. Return 0 on success, EOF on failure. */ int lvm_fclose(FILE *fp, const char *filename); #endif