feature/core_thread_prototypes_suggestions_cd
Christophe Deschamps
1 year ago
parent
59d7747e86
commit
8ee3e46dbc
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//
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// LinphoneAsyncWrapper.swift
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// CallKitTutorial
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//
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// Created by CD on 13/09/2023.
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// Copyright © 2023 BelledonneCommunications. All rights reserved.
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//
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import Foundation
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import Combine
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import linphonesw
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var coreQueue : DispatchQueue = DispatchQueue(label:"core.queue")
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var cancellables = Set<AnyCancellable>()
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// A publisher object that can old one or many LinphoneObject objects.
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public class LinphoneObjectsPublisher <T> : Publisher {
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public typealias Output = T
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public typealias Failure = Error
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let passThroughSubject = PassthroughSubject<Output, Failure>()
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public func receive<S>(subscriber: S) where S : Subscriber, S.Failure == Failure, S.Input == Output {
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passThroughSubject.receive(subscriber: subscriber)
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}
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public func send(completion: Subscribers.Completion<Failure>) {
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passThroughSubject.send(completion: completion)
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}
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@discardableResult
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public func postOnMainQueue(onError :@escaping ((Error) -> Void) = {_ in }, receiveValue:@escaping ((Output) -> Void)) -> LinphoneObjectsPublisher <T>{
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doOnQueue(onError,receiveValue,queue: DispatchQueue.main)
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return self
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}
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@discardableResult
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public func postOnCoreQueue(onError :@escaping ((Error) -> Void) = {_ in }, receiveValue:@escaping ((Output) -> Void)) -> LinphoneObjectsPublisher <T>{
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doOnQueue(onError,receiveValue,queue: coreQueue)
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return self
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}
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private func doOnQueue(_ onError :@escaping ((Error) -> Void) = {_ in }, _ receiveValue:@escaping ((Output) -> Void), queue:DispatchQueue) {
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passThroughSubject.receive(on:queue)
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.sink { error in
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onError(error as! Error)
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} receiveValue: { result in
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receiveValue(result)
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}.store(in: &cancellables)
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}
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var savedReference : Any? = nil // Used when a reference is needed to avoid object from beeing GCd (example delegate stubs)
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convenience init (reference: Any) {
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self.init()
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savedReference = reference
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}
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}
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public class LinphoneAsyncHelper {
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func postOnCoreQueue(lambda : @escaping ()->()) {
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coreQueue.async {
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lambda()
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}
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}
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func postOnMainQueue(lambda : @escaping()->()) {
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DispatchQueue.main.async {
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lambda()
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}
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}
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// Creates a publisher from the object created by the action passed as parameter
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// For example if passed a create core call this function will create the LinphoneObject Core on core queue, and created object will be published through the built publisher
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func createLinphoneObjectWithPublisher<LinphoneObject>(createAction:@escaping()throws -> LinphoneObject ) -> LinphoneObjectsPublisher<LinphoneObject> {
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let publisher = LinphoneObjectsPublisher<LinphoneObject>()
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coreQueue.async {
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do {
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publisher.passThroughSubject.send(try createAction())
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} catch {
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publisher.send(completion: .failure(error))
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}
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}
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return publisher
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}
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}
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extension Core {
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// Methods below would generated by a script similar to the one that creates LinphoneWrapper
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public func createAccountRegistrationStateChangedPublisher() -> LinphoneObjectsPublisher<(core:Core, account:Account, state:RegistrationState, message:String)> {
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let publisher = LinphoneObjectsPublisher<(core:Core, account:Account, state:RegistrationState, message:String)>()
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let coreDelegate = CoreDelegateStub (
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onAccountRegistrationStateChanged: { (core: Core, account: Account, state: RegistrationState, message: String) in
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publisher.passThroughSubject.send((core,account,state,message))
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})
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publisher.savedReference = coreDelegate
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addDelegate(delegate: coreDelegate)
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return publisher
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}
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public func createOnCallStateChangedPublisher() -> LinphoneObjectsPublisher<(core: Core, call: Call, state: Call.State, message: String)> {
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let publisher = LinphoneObjectsPublisher<(core: Core, call: Call, state: Call.State, message: String)>()
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let coreDelegate = CoreDelegateStub (
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onCallStateChanged: { (core: Core, call: Call, state: Call.State, message: String) in
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publisher.passThroughSubject.send((core,call,state,message))
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})
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publisher.savedReference = coreDelegate
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addDelegate(delegate: coreDelegate)
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return publisher
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}
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// ...
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}
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