Question

我可以连接到twitch的聊天并来回发送消息，但是我注意到每次连接时都会有少量内存泄露

以下是导致泄漏的代码的核心。（通过多次调用此方法，空应用程序的已用内存从12MB变为超过100MB）

@IBAction func lotsOfConnects(sender: NSButton) {
    for i in 0..<10_000 {
        var readStream: NSInputStream?
        var writeStream: NSOutputStream?

        NSStream.getStreamsToHostWithName("irc.twitch.tv", port: 6667, inputStream: &readStream, outputStream: &writeStream)

        // Leaks with of without these two lines
        readStream = nil
        writeStream = nil
    }
}

但是，使用旧方法时没有泄漏，这在Swift

中不太好

@IBAction func j(sender: NSButton) {
    for i in 0..<10_000 {
        var readStream:  Unmanaged<CFReadStream>?
        var writeStream: Unmanaged<CFWriteStream>?

        CFStreamCreatePairWithSocketToHost(nil, "irc.twitch.tv", 6667, &readStream, &writeStream)

        var inputStream = readStream!.takeRetainedValue()
        var outputStream = writeStream!.takeRetainedValue()

        readStream = nil
        writeStream = nil
    }
}

有没有办法清理内存，还是我必须再继续使用旧方法？

Answer 1

我试图在1月份就这个问题与Apple联系，今天刚收到回复。解决方案是在autoreleasepool调用周围添加NSStream.getStreamsToHostWithName，这会导致NSStream内容在块完成后立即释放，而不是在某个时间后＃39 ;这往往是在遥远的未来。

NSStream.getStreamsToHostWithName导致内存泄漏

1 个答案: