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/*
* Copyright 2019 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "FIRInstanceIDCombinedHandler.h"
NS_ASSUME_NONNULL_BEGIN
typedef void (^FIRInstanseIDHandler)(id _Nullable result, NSError *_Nullable error);
@interface FIRInstanceIDCombinedHandler <ResultType>()
@property(atomic, readonly, strong) NSMutableArray<FIRInstanseIDHandler> *handlers;
@end
NS_ASSUME_NONNULL_END
@implementation FIRInstanceIDCombinedHandler
- (instancetype)init {
self = [super init];
if (self) {
_handlers = [NSMutableArray array];
}
return self;
}
- (void)addHandler:(FIRInstanseIDHandler)handler {
if (!handler) {
return;
}
@synchronized(self) {
[self.handlers addObject:handler];
}
}
- (FIRInstanseIDHandler)combinedHandler {
FIRInstanseIDHandler combinedHandler = nil;
@synchronized(self) {
NSArray<FIRInstanseIDHandler> *handlers = [self.handlers copy];
combinedHandler = ^(id result, NSError *error) {
for (FIRInstanseIDHandler handler in handlers) {
handler(result, error);
}
};
}
return combinedHandler;
}
@end
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