static void Main(string[] args)
{
int maxParallelTasks = 4;
int totalTasks = 10;
BlockingCounter blockingCounter = new BlockingCounter(maxParallelTasks);
List<ManualResetEvent> waitList = new List<ManualResetEvent>();
for (int i = 1; i <= totalTasks; i++)
{
ManualResetEvent finishEvent = new ManualResetEvent(false);
waitList.Add(finishEvent);
Console.WriteLine("Submitting task {0}",i);
blockingCounter.WaitableIncrement();
if (!ThreadPool.QueueUserWorkItem((obj) =>
{
try
{
ThreadProc(obj);
}
catch(Exception ex)
{
Console.Error.WriteLine("Task {0} failed: {1}", obj, ex.Message);
}
finally
{
// Exceptions are possible here too,
// but proper error handling is not the goal of this sample
finishEvent.Set();
blockingCounter.WaitableDecrement();
}
}, i))
{
waitList.Remove(finishEvent);
blockingCounter.WaitableDecrement();
Console.Error.WriteLine("Failed to submit task {0} for execution.", i);
}
}
blockingCounter.Close();
Console.WriteLine("Waiting for copmletion...");
foreach (ManualResetEvent finishEvent in waitList)
{
finishEvent.WaitOne(10000);
}
Console.WriteLine("Work done!");
Console.ReadKey();
}
static void Main(string[] args)
{
int maxParallelTasks = 4;
int totalTasks = 10;
using (BlockingCounter blockingCounter = new BlockingCounter(maxParallelTasks))
{
for (int i = 1; i <= totalTasks; i++)
{
Console.WriteLine("Submitting task {0}", i);
blockingCounter.WaitableIncrement();
if (!ThreadPool.QueueUserWorkItem((obj) =>
{
try
{
ThreadProc(obj);
}
catch (Exception ex)
{
Console.Error.WriteLine("Task {0} failed: {1}", obj, ex.Message);
}
finally
{
// Exceptions are possible here too,
// but proper error handling is not the goal of this sample
blockingCounter.WaitableDecrement();
}
}, i))
{
blockingCounter.WaitableDecrement();
Console.Error.WriteLine("Failed to submit task {0} for execution.", i);
}
}
Console.WriteLine("Waiting for copmletion...");
blockingCounter.CloseAndWait(30000);
}
Console.WriteLine("Work done!");
Console.ReadKey();
}
