63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
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/**
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Copyright 2018 Google Inc. All rights reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 "FBLPromise.h"
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NS_ASSUME_NONNULL_BEGIN
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@interface FBLPromise<Value>(RaceAdditions)
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/**
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Wait until any of the given promises are fulfilled.
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If one of the promises is rejected, then the returned promise is rejected with same error.
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If any other arbitrary value or `NSError` appears in the array instead of `FBLPromise`,
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it's implicitly considered a pre-fulfilled or pre-rejected `FBLPromise` correspondingly.
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@param promises Promises to wait for.
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@return A new pending promise to be resolved with the same resolution as the first promise, among
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the given ones, which was resolved.
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*/
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+ (instancetype)race:(NSArray *)promises NS_SWIFT_UNAVAILABLE("");
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/**
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Wait until any of the given promises are fulfilled.
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If one of the promises is rejected, then the returned promise is rejected with same error.
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If any other arbitrary value or `NSError` appears in the array instead of `FBLPromise`,
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it's implicitly considered a pre-fulfilled or pre-rejected `FBLPromise` correspondingly.
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@param queue A queue to dispatch on.
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@param promises Promises to wait for.
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@return A new pending promise to be resolved with the same resolution as the first promise, among
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the given ones, which was resolved.
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*/
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+ (instancetype)onQueue:(dispatch_queue_t)queue race:(NSArray *)promises NS_REFINED_FOR_SWIFT;
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@end
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/**
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Convenience dot-syntax wrappers for `FBLPromise` `race` operators.
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Usage: FBLPromise.race(@[ ... ])
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*/
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@interface FBLPromise<Value>(DotSyntax_RaceAdditions)
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+ (FBLPromise * (^)(NSArray *))race FBL_PROMISES_DOT_SYNTAX NS_SWIFT_UNAVAILABLE("");
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+ (FBLPromise * (^)(dispatch_queue_t, NSArray *))raceOn FBL_PROMISES_DOT_SYNTAX
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NS_SWIFT_UNAVAILABLE("");
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@end
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NS_ASSUME_NONNULL_END
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