Oolite 1.91.0.7644-241112-7f5034b
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OOAsyncWorkManager.h
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1/*
2
3OOAsyncWorkManager.h
4
5Simple thread pool/work unit manager.
6
7
8Copyright (C) 2009-2013 Jens Ayton
9
10Permission is hereby granted, free of charge, to any person obtaining a copy
11of this software and associated documentation files (the "Software"), to deal
12in the Software without restriction, including without limitation the rights
13to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14copies of the Software, and to permit persons to whom the Software is
15furnished to do so, subject to the following conditions:
16
17The above copyright notice and this permission notice shall be included in all
18copies or substantial portions of the Software.
19
20THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26SOFTWARE.
27
28*/
29
30#import "OOCocoa.h"
31
32
33@class OOAsyncQueue;
34
35@protocol OOAsyncWorkTask;
36
37
44
45
46@interface OOAsyncWorkManager: NSObject
47
49
50- (BOOL) addTask:(id<OOAsyncWorkTask>)task priority:(OOAsyncWorkPriority)priority;
51
52/* Complete any tasks whose asynchronous portion is ready, but without waiting.
53*/
55
56/* Wait for a task to complete.
57
58 WARNING: if task is not an existing task, or does not implement
59 -completeAsyncTask, this will never return.
60
61 IMPORTANT: May only be called on the main thread.
62*/
63- (void) waitForTaskToComplete:(id<OOAsyncWorkTask>)task;
64
65@end
66
67
68@protocol OOAsyncWorkTask <NSObject>
69
70// Called on a worker thread. There may be multiple worker threads.
71- (void) performAsyncTask;
72
73// @optional
74OOLITE_OPTIONAL(OOAsyncWorkTask)
75
76/* Called on main thread some time after -performAsyncTask completes.
77*/
78- (void) completeAsyncTask;
79
80@end
OOAsyncWorkPriority
@ kOOAsyncPriorityLow
@ kOOAsyncPriorityMedium
@ kOOAsyncPriorityHigh
#define OOLITE_OPTIONAL(protocolName)
Definition OOCocoa.h:395
OOAsyncWorkManager * sharedAsyncWorkManager()