|  | /* | 
|  | *  Copyright (C) 2000-2007 SWsoft. All rights reserved. | 
|  | * | 
|  | *  This program is free software; you can redistribute it and/or modify | 
|  | *  it under the terms of the GNU General Public License as published by | 
|  | *  the Free Software Foundation; either version 2 of the License, or | 
|  | *  (at your option) any later version. | 
|  | * | 
|  | *  This program is distributed in the hope that it will be useful, | 
|  | *  but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
|  | *  GNU General Public License for more details. | 
|  | * | 
|  | *  You should have received a copy of the GNU 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 _LOCK_H_ | 
|  | #define _LOCK_H_ | 
|  |  | 
|  | /** Lock VE. | 
|  | * Create lock file $dir/$veid.lck. | 
|  | * @param veid		VPD id. | 
|  | * @param dir		lock directory. | 
|  | * @param status	transition status. | 
|  | * @return		0 - success | 
|  | *			1 - locked | 
|  | *			-1- error. | 
|  | */ | 
|  | int vps_lock(envid_t veid, char *dir, char *status); | 
|  |  | 
|  | /** Unlock VE. | 
|  | * | 
|  | * @param veid		VE id. | 
|  | * @param dir		lock directory. | 
|  | */ | 
|  | void vps_unlock(envid_t veid, char *dir); | 
|  | int _lock(char *lockfile, int blk); | 
|  | void _unlock(int fd, char *lockfile); | 
|  |  | 
|  | #endif |