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