public static void BeginTest(string url, int times, int gap, CancellationToken ct)
{
MainWindow.Current.TheList.Items.Clear();
for (int i = 0; i < times; i++)
{
int num = i;
using (WebClient client = new WebClient())
{
TestRecord record = new TestRecord();
record.Number = num + 1;
client.DownloadStringCompleted += (sender, e) =>
{
string response = e.Result;
var sendTime = record.RawSendTime;
var receiveTime = DateTime.Now;
record.ReceiveTime = FormatTime(receiveTime);
record.Delay = (receiveTime - sendTime).TotalMilliseconds;
record.Response = response;
MainWindow.Current.Dispatcher.BeginInvoke(new Action(() =>
{
MainWindow.Current.TheList.Items.Refresh();
}));
};
Task.Factory.StartNew(() =>
{
Thread.Sleep(num * gap);
record.RawSendTime = DateTime.Now;
record.SendTime = FormatTime(record.RawSendTime);
client.DownloadStringAsync(new Uri(url));
MainWindow.Current.Dispatcher.BeginInvoke(new Action(() =>
{
MainWindow.Current.TheList.Items.Add(record);
}));
}, ct);
}
}
}
public static async Task <TestRecord> DoSingleRequest(string url, int number, int gap)
{
await Task.Delay(number *gap);
using (WebClient client = new WebClient {
Encoding = System.Text.Encoding.Default
})
{
TestRecord record = new TestRecord();
var sendTime = DateTime.Now;
string response = await client.DownloadStringTaskAsync(url);
var receiveTime = DateTime.Now;
record.Number = number;
record.SendTime = FormatTime(sendTime);
record.ReceiveTime = FormatTime(receiveTime);
record.Delay = (receiveTime - sendTime).TotalMilliseconds;
record.Response = response;
return(record);
}
}
public static async Task BeginTest(string url, int times, int gap, CancellationToken ct)
{
MainWindow.Current.TheList.Items.Clear();
List <TestRecord> tasks = new List <TestRecord>();
for (int i = 0; i < times; i++)
{
int num = i;
using (WebClient client = new WebClient())
{
TestRecord record = new TestRecord();
record.Number = num + 1;
var task = Task.Delay(num * gap, ct).ContinueWith(t =>
{
record.RawSendTime = DateTime.Now;
record.SendTime = FormatTime(record.RawSendTime);
return(client.DownloadStringTaskAsync(url));
}, ct);
//var task = new Task<Task<string>>(async () =>
//{
// await Task.Delay(num * gap);
// record.RawSendTime = DateTime.Now;
// record.SendTime = FormatTime(record.RawSendTime);
// MainWindow.Current.TheList.Items.Add(record);
// return client.DownloadStringTaskAsync(url);
//}, ct);
record.Task = task;
tasks.Add(record);
}
}
foreach (var record in tasks)
{
string response = await await record.Task;
var sendTime = record.RawSendTime;
var receiveTime = DateTime.Now;
record.ReceiveTime = FormatTime(receiveTime);
record.Delay = (receiveTime - sendTime).TotalMilliseconds;
record.Response = response;
MainWindow.Current.TheList.Items.Add(record);
}
//List<Task<TestRecord>> requests = new List<Task<TestRecord>>();
//for (int i = 0; i < times; i++)
//{
// requests.Add(DoSingleRequest(url, i + 1, gap));
//}
//foreach (var r in requests)
//{
// MainWindow.Current.TheList.Items.Add(await r);
//}
//var requests = Enumerable.Range(0, times).Select(async i =>
//{
// await Task.Delay(gap);
// return DoSingleRequest(url, i + 1);
//}).ToList();
//requests.ForEach(async r =>
//{
// MainWindow.Current.TheList.Items.Add(await r);
//});
//for (int i = 0; i < times; i++)
//{
// await AddRecord(url, i + 1);
// //await Task.Delay(gap);
//}
}
