/usr/include/GNUstep/Foundation/NSCache.h is in libgnustep-base-dev 1.24.0-1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | /* Interface for NSCache for GNUStep
Copyright (C) 2009 Free Software Foundation, Inc.
Written by: David Chisnall <csdavec@swan.ac.uk>
Created: 2009
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 __NSCache_h_GNUSTEP_BASE_INCLUDE
#define __NSCache_h_GNUSTEP_BASE_INCLUDE
#import <GNUstepBase/GSVersionMacros.h>
#if OS_API_VERSION(MAC_OS_X_VERSION_10_6, GS_API_LATEST)
#import <Foundation/NSObject.h>
#if defined(__cplusplus)
extern "C" {
#endif
@class NSString;
@class NSMutableDictionary;
@class NSMutableArray;
@interface NSCache : NSObject
{
#if GS_EXPOSE(NSCache)
@private
/** The maximum total cost of all cache objects. */
NSUInteger _costLimit;
/** Total cost of currently-stored objects. */
NSUInteger _totalCost;
/** The maximum number of objects in the cache. */
NSUInteger _countLimit;
/** The delegate object, notified when objects are about to be evicted. */
id _delegate;
/** Flag indicating whether discarded objects should be evicted */
BOOL _evictsObjectsWithDiscardedContent;
/** Name of this cache. */
NSString *_name;
/** The mapping from names to objects in this cache. */
NSMutableDictionary *_objects;
/** LRU ordering of all potentially-evictable objects in this cache. */
NSMutableArray *_accesses;
/** Total number of accesses to objects */
int64_t _totalAccesses;
#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
}
/**
* Returns the maximum number of objects that are supported by this cache.
*/
- (NSUInteger) countLimit;
/**
* Returns the cache's delegate.
*/
- (id) delegate;
/**
* Returns whether objects stored in this cache which implement the
* NSDiscardableContent protocol are removed from the cache when their contents
* are evicted.
*/
- (BOOL) evictsObjectsWithDiscardedContent;
/**
* Returns the name associated with this cache.
*/
- (NSString*) name;
/**
* Returns an object associated with the specified key in this cache.
*/
- (id) objectForKey: (id)key;
/**
* Removes all objects from this cache.
*/
- (void) removeAllObjects;
/**
* Removes the object associated with the given key.
*/
- (void) removeObjectForKey: (id)key;
/**
* Sets the maximum number of objects permitted in this cache. This limit is
* advisory; caches may choose to disregard it temporarily or permanently. A
* limit of 0 is used to indicate no limit; this is the default.
*/
- (void) setCountLimit: (NSUInteger)lim;
/**
* Sets the delegate for this cache. The delegate will be notified when an
* object is being evicted or removed from the cache.
*/
- (void) setDelegate: (id)del;
/**
* Sets whether this cache will evict objects that conform to the
* NSDiscardableContent protocol, or simply discard their contents.
*/
- (void) setEvictsObjectsWithDiscardedContent: (BOOL)b;
/**
* Sets the name for this cache.
*/
- (void) setName: (NSString*)cacheName;
/**
* Adds an object and its associated cost. The cache will endeavor to keep the
* total cost below the value set with -setTotalCostLimit: by discarding the
* contents of objects which implement the NSDiscardableContent protocol.
*/
- (void) setObject: (id)obj forKey: (id)key cost: (NSUInteger)num;
/**
* Adds an object to the cache without associating a cost with it.
*/
- (void) setObject: (id)obj forKey: (id)key;
/**
* Sets the maximum total cost for objects stored in this cache. This limit is
* advisory; caches may choose to disregard it temporarily or permanently. A
* limit of 0 is used to indicate no limit; this is the default.
*/
- (void) setTotalCostLimit: (NSUInteger)lim;
@end
/**
* Protocol implemented by NSCache delegate objects.
*/
@protocol NSCacheDelegate
/**
* Delegate method, called just before the cache removes an object, either as
* the result of user action or due to the cache becoming full.
*/
- (void) cache: (NSCache*)cache willEvictObject: (id)obj;
@end
#if defined(__cplusplus)
}
#endif
#endif //OS_API_VERSION(MAC_OS_X_VERSION_10_6, GS_API_LATEST)
#endif /* __NSCache_h_GNUSTEP_BASE_INCLUDE */
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