Logo ROOT  
Reference Guide
mt301_TTaskGroupSimple.C
Go to the documentation of this file.
1 /// \file
2 /// \ingroup tutorial_multicore
3 /// \notebook -js
4 /// Shows how to run items of work asynchronously with a TTaskGroup.
5 ///
6 /// \macro_code
7 ///
8 /// \date August 2017
9 /// \author Danilo Piparo
10 
11 void workItem0()
12 {
13  printf("Running workItem0...\n");
14 }
15 
16 void mt301_TTaskGroupSimple()
17 {
18 
20 
21  // Create the task group and give work to it
23 
24  tg.Run(workItem0);
25  tg.Run([]() { printf("Running workItem1...\n"); });
26 
27  printf("Running something in the \"main\" thread\n");
28 
29  // Wait until all items are complete
30  tg.Wait();
31 
32  printf("All work completed.\n");
33 }
ROOT::Experimental::TTaskGroup::Run
void Run(const std::function< void(void)> &closure)
Add to the group an item of work which will be ran asynchronously.
Definition: TTaskGroup.cxx:107
ROOT::Experimental::TTaskGroup
A class to manage the asynchronous execution of work items.
Definition: TTaskGroup.hxx:21
ROOT::EnableImplicitMT
void EnableImplicitMT(UInt_t numthreads=0)
Enable ROOT's implicit multi-threading for all objects and methods that provide an internal paralleli...
Definition: TROOT.cxx:525
ROOT::Experimental::TTaskGroup::Wait
void Wait()
Wait until all submitted items of work are completed.
Definition: TTaskGroup.cxx:122