Microsoft.Win32.KeyHandler.GetSystemBootTime C# (CSharp) Méthode

		static long GetSystemBootTime ()
		{
			if (!File.Exists ("/proc/stat"))
				return -1;

			string btime = null;
			string line;

			try {
				using (StreamReader stat_file = new StreamReader ("/proc/stat", Encoding.ASCII)) {
					while ((line = stat_file.ReadLine ()) != null)
						if (line.StartsWith ("btime")) {
							btime = line;
							break;
						}
				}
			} catch (Exception e) {
				Console.Error.WriteLine ("While reading system info {0}", e);
			}

			if (btime == null)
				return -1;

			int space = btime.IndexOf (' ');
			long res;
			if (!Int64.TryParse (btime.Substring (space, btime.Length - space), out res))
				return -1;

			return res;
		}