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Prevent signal and wait from racing

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This commit is contained in:
Jason A. Donenfeld 2018-09-24 03:08:18 +02:00
parent 75a86c7cce
commit fcd5923cbc
1 changed files with 3 additions and 1 deletions
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4
WireGuardNetworkExtension/PacketTunnelProvider.swift
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@ -181,7 +181,7 @@ class WireGuardContext {
private var packetFlow: NEPacketTunnelFlow
private var outboundPackets: [NEPacket] = []
private var isTunnelClosed: Bool = false
private let readPacketCondition = NSCondition()
private var readPacketCondition = NSCondition()
init(packetFlow: NEPacketTunnelFlow) {
self.packetFlow = packetFlow
@ -193,7 +193,9 @@ class WireGuardContext {
}
func packetsRead(packets: [NEPacket]) {
readPacketCondition.lock()
outboundPackets.append(contentsOf: packets)
readPacketCondition.unlock()
readPacketCondition.signal()
}