53 lines
1.4 KiB
Swift
53 lines
1.4 KiB
Swift
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//
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// Logger.swift
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// SingBoxPacketTunnel
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//
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// Created by GFWFighter on 10/24/23.
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//
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import Foundation
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class Logger {
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private static let queue = DispatchQueue.init(label: "\(FilePath.packageName).PacketTunnelLog", qos: .utility)
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private let fileManager = FileManager.default
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private let url: URL
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private var _fileHandle: FileHandle?
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private var fileHandle: FileHandle? {
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get {
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if let _fileHandle { return _fileHandle }
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let handle = try? FileHandle(forWritingTo: url)
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_fileHandle = handle
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return handle
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}
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}
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private var lock = NSLock()
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init(path: URL) {
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url = path
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}
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func write(_ message: String) {
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Logger.queue.async { [message, unowned self] () in
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lock.lock()
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defer { lock.unlock() }
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let output = message + "\n"
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do {
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if !self.fileManager.fileExists(atPath: url.path) {
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try output.write(to: url, atomically: true, encoding: .utf8)
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} else {
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guard let fileHandle else {
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return
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}
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fileHandle.seekToEndOfFile()
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if let data = output.data(using: .utf8) {
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fileHandle.write(data)
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}
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}
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} catch {}
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}
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}
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}
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