session-ios/Signal/src/MessageSender+Promise.swift
2017-11-29 13:58:27 -08:00

26 lines
759 B
Swift

//
// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
//
import Foundation
import PromiseKit
import SignalServiceKit
public extension MessageSender {
/**
* Wrap message sending in a Promise for easier callback chaining.
*/
public func sendPromise(message: TSOutgoingMessage) -> Promise<Void> {
let promise: Promise<Void> = Promise { fulfill, reject in
self.enqueue(message, success: fulfill, failure: reject)
}
// Ensure sends complete before they're GC'd.
// This *should* be redundant, since we should be calling retainUntilComplete
// at all call sites where the promise isn't otherwise retained.
promise.retainUntilComplete()
return promise
}
}