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72 lines
1.5 KiB
Objective-C
Executable File
72 lines
1.5 KiB
Objective-C
Executable File
//
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// GDRetainingMetadataCache.m
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// GDFileManagerExample
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//
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// Created by Graham Dennis on 16/01/13.
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// Copyright (c) 2013 Graham Dennis. All rights reserved.
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//
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#import "GDRetainingMetadataCache.h"
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#import "GDAbstractMetadataCache_Private.h"
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@interface GDRetainingMetadataCache ()
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@property (nonatomic, strong) NSMutableDictionary *dictionary;
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@property (nonatomic) dispatch_queue_t accessQueue;
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@end
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@implementation GDRetainingMetadataCache
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#if !OS_OBJECT_USE_OBJC
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- (void)dealloc
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{
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if (self.accessQueue) {
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dispatch_release(self.accessQueue);
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self.accessQueue = NULL;
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}
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}
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#endif
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- (id)init
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{
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if ((self = [super init])) {
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self.dictionary = [NSMutableDictionary new];
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self.accessQueue = dispatch_queue_create("me.grahamdennis.GDRetainingMetadataCache", DISPATCH_QUEUE_CONCURRENT);
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}
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return self;
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}
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- (void)reset
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{
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dispatch_barrier_async(self.accessQueue, ^{
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[self.dictionary removeAllObjects];
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});
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}
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- (GDFileTreeNode *)treeNodeForURL:(NSURL *)url
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{
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__block GDFileTreeNode *treeNode = nil;
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dispatch_sync(self.accessQueue, ^{
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treeNode = [self.dictionary objectForKey:url];
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});
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return treeNode;
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}
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- (void)setTreeNode:(GDFileTreeNode *)treeNode forURL:(NSURL *)url
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{
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dispatch_barrier_async(self.accessQueue, ^{
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[self.dictionary setObject:treeNode forKey:url];
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});
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}
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- (void)removeTreeNodeForURL:(NSURL *)url
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{
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dispatch_barrier_async(self.accessQueue, ^{
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[self.dictionary removeObjectForKey:url];
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});
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}
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@end
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