C#

matthias s. wrote:

asynchronously and wait for all methods to finish processing before I
continue

WaitHandle[] waitHandles = new WaitHandle[methods.Length];
for(int i = 0;i < methods.Length; i++ )
{
     waitHandles[i] = new AutoResetEvent(false);
     MethodInfo info = methods[i];
     new Thread(delegate(object userState)
     {
           info.Invoke();
           (userState as AutoResetEvent).Set();
     }).Start(waitHandles[i]);
}
WaitHandle.WaitAll(waitHandles); // waits for all wait handles to set
// when control reaches here, all methods will have finished executing

matthias s. wrote:

where do I put my parameters (the info object takes a JobInfo parameter) in there and what is the userState object used for?

private class DataCarrier
{
   JobInfo JobInfoInstance { get; set; }
   WaitHandle Handle { get; set; }

   DataCarrier(JobInfo info,WaitHandle handle){
      this.JobInfoInstance = info;
      this.Handle = handle;
   }
}

WaitHandle[] waitHandles = new WaitHandle[methods.Length];
for(int i = 0;i < methods.Length; i++ )
{
     waitHandles[i] = new AutoResetEvent(false);
     MethodInfo info = methods[i];
     DataCarrier carrier = new DataCarrier(JobInfoInstance,waitHandles[i]);
     new Thread(delegate(object userState)
     {
           DataCarrier c = userState as DataCarrier;
           // use c.JobInfoInstance here
           info.Invoke();
           c.Handle.Set();
     }).Start(carrier);
}
WaitHandle.WaitAll(waitHandles); // waits for all wait handles to set
// when control reaches here, all methods will have finished executing

N a v a n e e t h wrote:

new Thread(delegate(object userState)
{
DataCarrier c = userState as DataCarrier;
// use c.JobInfoInstance here
info.Invoke();
c.Handle.Set();
}).Start(carrier);

matthias s. wrote:

WaitHandle doesn't contain a Set() method.

private class DataCarrier
{
   JobInfo JobInfoInstance { get; set; }
   EventWaitHandle Handle { get; set; }

   DataCarrier(JobInfo info,EventWaitHandle handle){
      this.JobInfoInstance = info;
      this.Handle = handle;
   }
}

matthias s. wrote:

but I don't fully understand the lines where the new thread is started.

matthias s. wrote:

{
DataCarrier c = userState as DataCarrier;
// use c.JobInfoInstance here
info.Invoke();
c.Handle.Set();
}

AS@13 wrote:

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