/Task Wait.cs Secret
Created
April 26, 2020 07:31
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Example of Task.WaitAll and Task.WaitAny
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[Theory] | |
[InlineData(456, 10)] | |
public async void TaskWaitOptions(int initialNumberOfBooks, int numberOfTasks) | |
{ | |
Random rnd = new Random(); | |
List<Task> lstTasks = new List<Task>(); | |
LibraryAccount acc = new LibraryAccount(initialNumberOfBooks); | |
for (int i = 0; i < numberOfTasks; i++) | |
{ | |
Task t = new Task(() => | |
{ | |
acc.WithdrawBooksWithExecuterName(rnd.Next(1, 12), "Thread_" + DateTime.Now.Ticks); | |
}); | |
lstTasks.Add(t); | |
// Starting the task in various times | |
Task.Delay(rnd.Next(3000, 10000)).ContinueWith((p)=> { t.Start(); }); | |
} | |
await Task.Delay(5000); | |
int index = Task.WaitAny(lstTasks.ToArray()); | |
Trace.WriteLine($">>> The task in index {index} is completed; waiting for the rest to complete"); | |
Task.WaitAll(lstTasks.ToArray()); | |
Trace.WriteLine($">>> All the tasks were completed"); | |
} | |
/* The output: | |
26/04/2020 03:28:33: Inside thread Thread_637235117129167455, trying to withdraw 1 while the current balance is 456 | |
26/04/2020 03:28:33: Inside thread Thread_637235117129229866, trying to withdraw 8 while the current balance is 455 | |
26/04/2020 03:28:34: Inside thread Thread_637235117143485059, trying to withdraw 7 while the current balance is 447 | |
>>> The task in index 1 is completed; waiting for the rest to complete | |
26/04/2020 03:28:34: Inside thread Thread_637235117147239496, trying to withdraw 6 while the current balance is 440 | |
26/04/2020 03:28:35: Inside thread Thread_637235117158681339, trying to withdraw 6 while the current balance is 434 | |
26/04/2020 03:28:36: Inside thread Thread_637235117168349816, trying to withdraw 9 while the current balance is 428 | |
26/04/2020 03:28:37: Inside thread Thread_637235117169743204, trying to withdraw 4 while the current balance is 419 | |
26/04/2020 03:28:38: Inside thread Thread_637235117183844764, trying to withdraw 3 while the current balance is 415 | |
26/04/2020 03:28:38: Inside thread Thread_637235117185905806, trying to withdraw 5 while the current balance is 412 | |
26/04/2020 03:28:39: Inside thread Thread_637235117192056999, trying to withdraw 6 while the current balance is 407 | |
>>> All the tasks were completed | |
*/ |
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