//
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// YYTransaction.m
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// YYKit <https://github.com/ibireme/YYKit>
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//
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// Created by ibireme on 15/4/18.
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// Copyright (c) 2015 ibireme.
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//
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// This source code is licensed under the MIT-style license found in the
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// LICENSE file in the root directory of this source tree.
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//
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#import "YYTransaction.h"
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@interface YYTransaction()
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@property (nonatomic, strong) id target;
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@property (nonatomic, assign) SEL selector;
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@end
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static NSMutableSet *transactionSet = nil;
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static void YYRunLoopObserverCallBack(CFRunLoopObserverRef observer, CFRunLoopActivity activity, void *info) {
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if (transactionSet.count == 0) return;
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NSSet *currentSet = transactionSet;
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transactionSet = [NSMutableSet new];
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[currentSet enumerateObjectsUsingBlock:^(YYTransaction *transaction, BOOL *stop) {
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
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[transaction.target performSelector:transaction.selector];
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#pragma clang diagnostic pop
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}];
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}
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static void YYTransactionSetup() {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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transactionSet = [NSMutableSet new];
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CFRunLoopRef runloop = CFRunLoopGetMain();
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CFRunLoopObserverRef observer;
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observer = CFRunLoopObserverCreate(CFAllocatorGetDefault(),
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kCFRunLoopBeforeWaiting | kCFRunLoopExit,
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true, // repeat
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0xFFFFFF, // after CATransaction(2000000)
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YYRunLoopObserverCallBack, NULL);
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CFRunLoopAddObserver(runloop, observer, kCFRunLoopCommonModes);
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CFRelease(observer);
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});
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}
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@implementation YYTransaction
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+ (YYTransaction *)transactionWithTarget:(id)target selector:(SEL)selector{
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if (!target || !selector) return nil;
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YYTransaction *t = [YYTransaction new];
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t.target = target;
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t.selector = selector;
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return t;
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}
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- (void)commit {
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if (!_target || !_selector) return;
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YYTransactionSetup();
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[transactionSet addObject:self];
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}
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- (NSUInteger)hash {
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long v1 = (long)((void *)_selector);
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long v2 = (long)_target;
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return v1 ^ v2;
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}
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- (BOOL)isEqual:(id)object {
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if (self == object) return YES;
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if (![object isMemberOfClass:self.class]) return NO;
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YYTransaction *other = object;
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return other.selector == _selector && other.target == _target;
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}
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@end
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