mirror of
https://github.com/firebase/firebase-ios-sdk
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72 lines
2.4 KiB
Objective-C
72 lines
2.4 KiB
Objective-C
/*
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* Copyright 2017 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 <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface FSTDispatchQueue : NSObject
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/** Creates and returns an FSTDispatchQueue wrapping the specified dispatch_queue_t. */
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+ (instancetype)queueWith:(dispatch_queue_t)dispatchQueue;
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- (instancetype)initWithQueue:(dispatch_queue_t)queue NS_DESIGNATED_INITIALIZER;
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- (instancetype)init __attribute__((unavailable("Use static constructor method.")));
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/**
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* Asserts that we are already running on this queue (actually, we can only verify that the
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* queue's label is the same, but hopefully that's good enough.)
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*/
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- (void)verifyIsCurrentQueue;
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/**
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* Same as dispatch_async() except it asserts that we're not already on the queue, since this
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* generally indicates a bug (and can lead to re-ordering of operations, etc).
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*
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* @param block The block to run.
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*/
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- (void)dispatchAsync:(void (^)(void))block;
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/**
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* Unlike dispatchAsync: this method does not require you to dispatch to a different queue than
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* the current one (thus it is equivalent to a raw dispatch_async()).
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*
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* This is useful, e.g. for dispatching to the user's queue directly from user API call (in which
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* case we don't know if we're already on the user's queue or not).
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*
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* @param block The block to run.
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*/
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- (void)dispatchAsyncAllowingSameQueue:(void (^)(void))block;
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/**
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* Schedules a callback after the specified delay.
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*
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* Unlike dispatchAsync: this method does not require you to dispatch to a different queue than
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* the current one (thus it is equivalent to a raw dispatch_after()).
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*
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* @param block The block to run.
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* @param delay The delay (in seconds) after which to run the block.
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*/
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- (void)dispatchAfterDelay:(NSTimeInterval)delay block:(void (^)(void))block;
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/** The underlying wrapped dispatch_queue_t */
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@property(nonatomic, strong, readonly) dispatch_queue_t queue;
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@end
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NS_ASSUME_NONNULL_END
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