private static void SendMultiThreadRequest(List<int> acitivityIds, int threadCounts, SendRequestDelegate sendRequestDelegate)
{
var startTime = DateTime.Now;
var eventWaitHandles = new AutoResetEvent[threadCounts];
int perThreadItems = acitivityIds.Count / threadCounts == 0
? acitivityIds.Count / threadCounts
: acitivityIds.Count / threadCounts + 1;
for (int i = 0; i < threadCounts; i++)
{
var items = acitivityIds.GetRange(perThreadItems * i,
i == threadCounts - 1
? acitivityIds.Count - perThreadItems * i
: perThreadItems);
eventWaitHandles[i] = new AutoResetEvent(false);
Console.WriteLine("thread count:{0}, i:{1}", threadCounts, i);
//why need to define another variable i1?
int i1 = i;
var thread = new Thread(() => SendRequestBySingleThread(items, sendRequestDelegate, eventWaitHandles[i1]))
{Name = i.ToString()};
thread.Start();
}
WaitHandle.WaitAll(eventWaitHandles);
var endTime = DateTime.Now;
Console.WriteLine("done!");
Console.WriteLine("total time spent:{0}", endTime - startTime);
}
private static void SendRequestBySingleThread(List<int> activityIds, SendRequestDelegate sendRequest, AutoResetEvent eventWaitHandle)
{
var startTime = DateTime.Now;
foreach (var activityId in activityIds)
{
Console.WriteLine(string.Format("Thread:{0}, Id:{1}", Thread.CurrentThread.Name, activityId.ToString()));
sendRequest(activityId);
//Thread.Sleep(1000);
}
eventWaitHandle.Set();
var endTime = DateTime.Now;
Console.WriteLine("thread {0} request count:{1}, time spent:{2}", Thread.CurrentThread.Name, activityIds.Count, endTime - startTime);
}
public SendRequestState(SendRequestDelegate d, Action<XDocument> callback)
{
Delegate = d;
Callback = callback;
}
public static IAsyncResult GetResponseAsync(Dictionary<string, string> parameters, Action<XDocument> callback)
{
var httpMethod = "GET";
var authNeeded = false;
var isSsl = false;
RequestParametersAttribute attr = null;
var a = new StackFrame(1, false).GetMethod().GetCustomAttributes(typeof(RequestParametersAttribute), false);
if (a.Length > 0) attr = a[0] as RequestParametersAttribute;
if (attr != null)
{
httpMethod = attr.HttpMethod.ToString();
authNeeded = attr.AuthNeeded;
isSsl = attr.IsSsl;
}
Logger.WriteEmptyLine();
Logger.LogMessage(parameters["method"], "Request");
var d = new SendRequestDelegate(SendRequest);
return d.BeginInvoke(
parameters,
httpMethod,
authNeeded,
isSsl,
new AsyncCallback((res) =>
{
var s = (SendRequestState)res.AsyncState;
var doc = s.Delegate.EndInvoke(res);
if (doc != null) // no exceptions occured
{
Logger.LogMessage("Last.fm response OK");
//Logger.LogMessage(Environment.NewLine + doc.Document.ToString(), "Last.fm response");
if (s.Callback != null)
s.Callback(doc);
}
}),
new SendRequestState(d, callback));
}