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thread-safe ack generation

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This commit is contained in:
Alexander Levin 2017-02-23 09:32:50 +02:00
parent cce88ae3eb
commit fcb2b6bbf6
1 changed files with 9 additions and 3 deletions
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12
Source/SocketIOClient.swift
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@ -54,6 +54,7 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
private var handlers = [SocketEventHandler]()
private var reconnecting = false
private let ackSemaphore = DispatchSemaphore(value: 1)
private(set) var currentAck = -1
private(set) var handleQueue = DispatchQueue.main
private(set) var reconnectAttempts = -1
@ -161,10 +162,15 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
}
}
private func createOnAck(_ items: [Any]) -> OnAckCallback {
private func nextAck() -> Int {
ackSemaphore.wait()
defer { ackSemaphore.signal() }
currentAck += 1
return OnAckCallback(ackNumber: currentAck, items: items, socket: self)
return currentAck
}
private func createOnAck(_ items: [Any]) -> OnAckCallback {
return OnAckCallback(ackNumber: nextAck(), items: items, socket: self)
}
func didConnect() {