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Delphi High Performance
book

Delphi High Performance

by Primož Gabrijelčič
February 2018
Intermediate to advanced content levelIntermediate to advanced
336 pages
7h 52m
English
Packt Publishing
Content preview from Delphi High Performance

Join

The next pattern I want to present is Join. This is a very simple pattern that starts multiple tasks in parallel. In the Parallel Programming Library, Join is implemented as a class method of the TParallel class. To execute three methods,  Task1, Task2, and Task3, in parallel, you simply call TParallel.Join with parameters collected in an array:

TParallel.Join([Task1, Task2, Task3]);

This is equivalent to the following implementation, which uses tasks:

var  tasks: array [1..3] of ITask;tasks[1] := TTask.Run(Task1);tasks[2] := TTask.Run(Task2);tasks[3] := TTask.Run(Task3);
Although the approaches work the same, that doesn't mean that Join is implemented in this way. Rather than that, it uses a pattern that I haven't yet covered, a parallel ...
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Publisher Resources

ISBN: 9781788625456Supplemental Content