public List <Copy> ExecuteQuery()
{
if (ThreadCount == 0)
{
throw new InvalidOperationException("Threads property not set and default value 0 is not valid.");
}
//CODE HERE
MergeSortTreeNodeJob RootJob = new MergeSortTreeNodeJob(ThreadCount, 0, this.Copies.Count - 1, 0, Copies);
RootJob.RunMainJob();
return(RootJob.Result);
}
public void RunMainJob()
{
if (this.NumThreads <= 0)
{
throw new ImTotallyStupidException("Some mistake occured while recounting numbers of threads, its <= 0");
}
if (this.NumThreads == 1)
{
this.Result = FilterAndSort();
return;
}
//recount indeces and nums of threads, span new threads and wait fot them
int numThreads1 = this.NumThreads / 2;
//second part of a tree might contain one more thread then the firts one
int numThreads2 = (this.NumThreads / 2) + (this.NumThreads % 2);
int numElements = (this.EndIndex - this.StartIndex) + 1;
int start1 = this.StartIndex;
//and it might also be responsible for sorting one more element
int end1 = (numElements / 2) - 1 + this.StartIndex;
int start2 = end1 + 1;
int end2 = this.EndIndex;
MergeSortTreeNodeJob JobNode1 = new MergeSortTreeNodeJob(numThreads1, start1, end1, (this.levelInTree + 1), this.Data);
Console.WriteLine($"The first thread of level {JobNode1.levelInTree} sorts {start1} - {end1}");
MergeSortTreeNodeJob JobNode2 = new MergeSortTreeNodeJob(numThreads2, start2, end2, (this.levelInTree + 1), this.Data);
Console.WriteLine($"The second thread of level {JobNode2.levelInTree} sorts {start2} - {end2}");
Thread thread1 = new Thread(JobNode1.RunMainJob);
thread1.Name = "Thread of the level " + JobNode1.levelInTree;
Thread thread2 = new Thread(JobNode2.RunMainJob);
thread2.Name = "Thread of the level " + JobNode2.levelInTree;
thread1.Start();
thread2.Start();
thread1.Join();
thread2.Join();
//MERGE
Console.WriteLine($"{Thread.CurrentThread.Name} finished waiting for {thread1.Name} and {thread2.Name}");
Console.WriteLine("Merging");
List <Copy> merged = Merge(JobNode1.Result, JobNode2.Result);
this.Result = merged;
return;
}