ReaderThumbQueue.m 3.33 KB
Newer Older
admin's avatar
admin committed
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
//
//	ReaderThumbQueue.m
//	Reader v2.6.0
//
//	Created by Julius Oklamcak on 2011-09-01.
//	Copyright © 2011-2013 Julius Oklamcak. All rights reserved.
//
//	Permission is hereby granted, free of charge, to any person obtaining a copy
//	of this software and associated documentation files (the "Software"), to deal
//	in the Software without restriction, including without limitation the rights to
//	use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
//	of the Software, and to permit persons to whom the Software is furnished to
//	do so, subject to the following conditions:
//
//	The above copyright notice and this permission notice shall be included in all
//	copies or substantial portions of the Software.
//
//	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
//	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
//	WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
//	CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

#import "ReaderThumbQueue.h"

@implementation ReaderThumbQueue
{
	NSOperationQueue *loadQueue;

	NSOperationQueue *workQueue;
}

#pragma mark ReaderThumbQueue class methods

+ (ReaderThumbQueue *)sharedInstance
{
	static dispatch_once_t predicate = 0;

	static ReaderThumbQueue *object = nil; // Object

	dispatch_once(&predicate, ^{ object = [self new]; });

	return object; // ReaderThumbQueue singleton
}

#pragma mark ReaderThumbQueue instance methods

- (id)init
{
	if ((self = [super init])) // Initialize
	{
		loadQueue = [NSOperationQueue new];

		[loadQueue setName:@"ReaderThumbLoadQueue"];

		[loadQueue setMaxConcurrentOperationCount:1];

		workQueue = [NSOperationQueue new];

		[workQueue setName:@"ReaderThumbWorkQueue"];

		[workQueue setMaxConcurrentOperationCount:1];
	}

	return self;
}

- (void)addLoadOperation:(NSOperation *)operation
{
	if ([operation isKindOfClass:[ReaderThumbOperation class]])
	{
		[loadQueue addOperation:operation]; // Add to load queue
	}
}

- (void)addWorkOperation:(NSOperation *)operation
{
	if ([operation isKindOfClass:[ReaderThumbOperation class]])
	{
		[workQueue addOperation:operation]; // Add to work queue
	}
}

- (void)cancelOperationsWithGUID:(NSString *)guid
{
	[loadQueue setSuspended:YES]; [workQueue setSuspended:YES];

	for (ReaderThumbOperation *operation in loadQueue.operations)
	{
		if ([operation isKindOfClass:[ReaderThumbOperation class]])
		{
			if ([operation.guid isEqualToString:guid]) [operation cancel];
		}
	}

	for (ReaderThumbOperation *operation in workQueue.operations)
	{
		if ([operation isKindOfClass:[ReaderThumbOperation class]])
		{
			if ([operation.guid isEqualToString:guid]) [operation cancel];
		}
	}

	[workQueue setSuspended:NO]; [loadQueue setSuspended:NO];
}

- (void)cancelAllOperations
{
	[loadQueue cancelAllOperations]; [workQueue cancelAllOperations];
}

@end

#pragma mark -

//
//	ReaderThumbOperation class implementation
//

@implementation ReaderThumbOperation
{
	NSString *_guid;
}

@synthesize guid = _guid;

#pragma mark ReaderThumbOperation instance methods

- (id)initWithGUID:(NSString *)guid
{
	if ((self = [super init]))
	{
		_guid = guid;
	}

	return self;
}

@end