| ActorKit.framework | |
| Private Framework | |
|---|---|
| Availabile | 3.0 – present |
| Class Prefix | AK |
| Headers | [headers.cynder.me] |
Languages: English • français
ActorKit is Apple's Objective-C-based implementation for Action-oriented programming.
It is used in DataAccess.framework, Message.framework and searchd.
Example usage
#import <ActorKit/ActorKit.h>
// You must provide a protocol on the messages that the actor can receive.
@protocol SlowActor
-(oneway void)doWorkWithConditionLock:(NSConditionLock*)lock; // oneway is important here. Without it, calls will be synchronous.
@end
@interface SlowActor : AKActor<SlowActor> {
int actor_id;
}
-(id)initWithID:(int)_id;
-(oneway void)doWorkWithConditionLock:(NSConditionLock*)lock;
@end
@implementation SlowActor
-(id)initWithID:(int)_id {
if ((self = [super init]))
actor_id = _id;
return self;
}
-(oneway void)doWorkWithConditionLock:(NSConditionLock*)lock; {
printf("Worker %d is doing work...\n", actor_id);
usleep(actor_id*actor_id*100000);
[lock lock];
[lock unlockWithCondition:[lock condition]+1];
printf("Worker %d has done.\n", actor_id);
}
@end
int main () {
NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
SlowActor* actors[10];
for (unsigned i = 0; i < 10; ++ i) {
actors[i] = [[[SlowActor alloc] initWithID:i] autorelease];
// You must call -startThreadDispatchQueue before sending any works to the actors.
[actors[i] startThreadDispatchQueue];
}
NSConditionLock* lock = [[NSConditionLock alloc] initWithCondition:0];
for (unsigned i = 0; i < 10; ++ i)
// Use -send to obtain the actor's mailbox. Send messages to their mailboxes to allow asynchronous messages.
[[actors[i] send] doWorkWithConditionLock:lock];
printf("Waiting for all workers...\n");
[lock lockWhenCondition:10];
[lock unlock];
printf("All workers done...\n");
[pool drain];
return 0;
}
Reference