///<summary>
///запускает программу проверки ping
///</summary>
private static void DoMeasures()
{
System.Timers.Timer _timer = new System.Timers.Timer();
_timer.AutoReset = true;
_timer.Interval = MEASURE_DELAY;
_timer.Elapsed += delegate
{
if (!locker)
{
net_state snapshot = new net_state();
snapshot.inet_ok = true;
snapshot.measure_id = start_measure_id++;
snapshot.measure_time = DateTime.Now;
Ping ping = new Ping();
//Первая проверка если роутер активен
var prr = ping.Send(ROUTER_IP, PING_TIMEOUT);
snapshot.router_rtt = prr.Status == IPStatus.Success ? (int)prr.RoundtripTime : PING_TIMEOUT;
if (prr.Status != IPStatus.Success)
{
//Роутер не доступен
snapshot.avg_rtts = new Dictionary <string, int>();
snapshot.http_ok = false;
snapshot.inet_ok = false;
snapshot.packet_loss = 1;
foreach (var ci in PING_HOSTS)
{
snapshot.avg_rtts.Add(ci, PING_TIMEOUT);
}
locker = true;
MethodInvoker methodInvoker = delegate()
{
_uI.ChangeStateControllsButtons();
};
_uI.Invoke(methodInvoker);
WriteLog("Router was unreachable.");
_timer.Stop();
return;
//SaveSnapshot(snapshot);
if (prev_inet_ok)
{
//Нет доступа к интернету
prev_inet_ok = false;
first_fail_time = DateTime.Now;
}
return;
}
try
{
snapshot.http_ok = true;
TcpClient tc = new TcpClient();
tc.BeginConnect(HTTP_TEST_HOST, HTTP_TEST_PORT, null, null);
Thread.Sleep(HTTP_TIMEOUT);
if (!tc.Connected)
{
snapshot.http_ok = false;
}
tc.Dispose();
}
catch { snapshot.http_ok = false; snapshot.inet_ok = false; }
//Now do ping test
exited_threads = 0;
pkt_sent = 0;
success_pkts = 0;
total_time = 0;
measure_results = new Dictionary <string, int>();
foreach (var ci in PING_HOSTS)
{
Thread thread = new Thread(new ParameterizedThreadStart(PerformPingTest));
thread.Start(ci);
}
while (exited_threads < PING_HOSTS.Count)
{
continue;
}
//Analyze results
snapshot.avg_rtts = measure_results;
snapshot.packet_loss = (double)(pkt_sent - success_pkts) / pkt_sent;
snapshot.inet_ok = !(
snapshot.http_ok == false ||
((double)total_time / success_pkts >= 0.75 * PING_TIMEOUT) ||
snapshot.packet_loss >= MAX_PKT_LOSS ||
snapshot.router_rtt == PING_TIMEOUT);
SaveSnapshot(snapshot);
}
else
{
_timer.Stop();
}
};
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
httpc = new HttpClient();
_timer.Start();
if (locker)
{
return;
}
while (true)
{
Thread.Sleep(1000000);
}
}
static void SaveSnapshot(net_state snapshot)
{
if (!locker)
{
//среднее значение ртт
int avg_rtt = 0;
//максимальное значение ртт
int max_rtt = 0;
//среднее значение ртт внутри локальной сети
int avg_rtt_local = 0;
List <string> vs = new List <string>();
//т.к пингует отдельный поток чтобы UI не завис, нам необходим делегат , который позволит общаться между потоками
MethodInvoker methodInvoker = delegate()
{
if (_uI.IpArray.Rows.Count > 0)
{
foreach (DataGridViewRow row in _uI.IpArray.Rows)
{
int res;
int.TryParse((row.Cells[0].Value.ToString()), out res);
avg_rtt += res;
}
avg_rtt = avg_rtt / _uI.IpArray.Rows.Count;
}
var index = _uI.IpArray.Rows.Add();
for (int i = 0; i < _uI.IpArray.Columns.Count; i++)
{
_uI.IpArray.Rows[index].Cells[i].Value = snapshot.avg_rtts[_uI.IpArray.Columns[i].Name];
}
_uI.Status.MaxPing = _uI.Status.MaxPing > max_rtt ? _uI.Status.MaxPing : max_rtt;
for (int i = 1; i < PING_HOSTS.Count; i++)
{
avg_rtt_local += snapshot.avg_rtts[PING_HOSTS[i]];
}
_uI.Chart.UpdateChart(snapshot.measure_time.ToString(), snapshot.avg_rtts[PING_HOSTS[0]]);
_uI.Status.AvgPing = avg_rtt;
_uI.Status.CountMembers = PING_HOSTS.Count - 1;
_uI.Status.IntenetStatus = snapshot.inet_ok;
if ((avg_rtt_local / PING_HOSTS.Count - 1) < 1)
{
_uI.Status.NetworkStatus = "Good";
}
else
{
_uI.Status.NetworkStatus = "Bad";
WriteLog("Плохое соеденение в локальной сети");
}
_uI.UpdateStatusSummary();
};
//invoke отправляет делегат родительскому потоку
_uI.Invoke(methodInvoker);
}
else
{
return;
}
}
