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Fixes Code crash due to multiple requests on reset
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Carlos Cabanero
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Jan 25, 2022
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| Original file line number | Diff line number | Diff line change |
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| ////////////////////////////////////////////////////////////////////////////////// | ||
| // | ||
| // B L I N K | ||
| // | ||
| // Copyright (C) 2016-2019 Blink Mobile Shell Project | ||
| // | ||
| // This file is part of Blink. | ||
| // | ||
| // Blink is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // Blink is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with Blink. If not, see <http://www.gnu.org/licenses/>. | ||
| // | ||
| // In addition, Blink is also subject to certain additional terms under | ||
| // GNU GPL version 3 section 7. | ||
| // | ||
| // You should have received a copy of these additional terms immediately | ||
| // following the terms and conditions of the GNU General Public License | ||
| // which accompanied the Blink Source Code. If not, see | ||
| // <http://www.github.com/blinksh/blink>. | ||
| // | ||
| //////////////////////////////////////////////////////////////////////////////// | ||
|
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| import Combine | ||
| import Foundation | ||
|
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| extension Publisher { | ||
| func shareReplay(maxValues: Int = 0) -> AnyPublisher<Output, Failure> { | ||
| multicast(subject: ReplaySubject(maxValues: maxValues)).autoconnect().eraseToAnyPublisher() | ||
| } | ||
| } | ||
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| final class ReplaySubject<Input, Failure: Error>: Subject { | ||
| typealias Output = Input | ||
| private var recording = Record<Input, Failure>.Recording() | ||
| private let stream = PassthroughSubject<Input, Failure>() | ||
| private let maxValues: Int | ||
| private let lock = NSRecursiveLock() | ||
| private var completed = false | ||
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| init(maxValues: Int = 0) { | ||
| self.maxValues = maxValues | ||
| } | ||
| func send(subscription: Subscription) { | ||
| subscription.request(maxValues == 0 ? .unlimited : .max(maxValues)) | ||
| } | ||
| func send(_ value: Input) { | ||
| lock.lock(); defer { lock.unlock() } | ||
| recording.receive(value) | ||
| stream.send(value) | ||
| if recording.output.count == maxValues { | ||
| send(completion: .finished) | ||
| } | ||
| } | ||
| func send(completion: Subscribers.Completion<Failure>) { | ||
| lock.lock(); defer { lock.unlock() } | ||
| if !completed { | ||
| completed = true | ||
| recording.receive(completion: completion) | ||
| } | ||
| stream.send(completion: completion) | ||
| } | ||
| func receive<S>(subscriber: S) where S: Subscriber, Failure == S.Failure, Input == S.Input { | ||
| lock.lock(); defer { lock.unlock() } | ||
| Record(recording: self.recording) | ||
| .append(self.stream) | ||
| .receive(subscriber: subscriber) | ||
| } | ||
| } |
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