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/* Interface for NSDistributedLock for GNUStep
Copyright (C) 1997 Free Software Foundation, Inc.
Written by: Richard Frith-Macdonald <richard@brainstorm.co.uk>
Date: 1997
This file is part of the GNUstep Base Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02111 USA.
*/
#ifndef __NSDistributedLock_h_GNUSTEP_BASE_INCLUDE
#define __NSDistributedLock_h_GNUSTEP_BASE_INCLUDE
#import <GNUstepBase/GSVersionMacros.h>
#import <Foundation/NSObject.h>
#import <Foundation/NSString.h>
#import <Foundation/NSDate.h>
#if defined(__cplusplus)
extern "C" {
#endif
@interface NSDistributedLock : NSObject
{
#if GS_EXPOSE(NSDistributedLock)
NSString *_lockPath;
NSDate *_lockTime;
#endif
#if GS_NONFRAGILE
#else
/* Pointer to private additional data used to avoid breaking ABI
* when we don't have the non-fragile ABI available.
* Use this mechanism rather than changing the instance variable
* layout (see Source/GSInternal.h for details).
*/
@private id _internal GS_UNUSED_IVAR;
#endif
}
+ (NSDistributedLock*) lockWithPath: (NSString*)aPath;
- (id) initWithPath: (NSString*)aPath;
- (void) breakLock;
- (NSDate*) lockDate;
- (BOOL) tryLock;
- (void) unlock;
@end
#if defined(__cplusplus)
}
#endif
#endif /* __NSDistributedLock_h_GNUSTEP_BASE_INCLUDE */
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