Solved

How to gracefully close the c++ 11 thread?

Posted on 2016-09-19
3
225 Views
Last Modified: 2016-09-23
Hi,

  Created C++ 11 thread by using std::thread. Running in parallel to main program/thread. Now, in some situation, I want to kill or terminate that thread gracefully.

What is the best way to kill child/other threads.

Ed
0
Comment
Question by:EeEd EeEd
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 62

Expert Comment

by:gheist
ID: 41806274
When thread function exits thread finishes.
0
 
LVL 34

Accepted Solution

by:
sarabande earned 250 total points
ID: 41806490
When thread function exits thread finishes.

... gracefully.

therefore, you always should add a way how to return from thread function (and break the - infinite - loop) on request of the main thread. the simplest to do so, is to provide a shared bool variable (stop flag) which was checked by the thread periodically. to stop the thread the main thread would set the bool  and either wait until the thread has recognized the stop flag and exited, or if the results of the thread are no longer needed, simply goes on. the thread may reset the shared stop flag before exit.

Sara
1
 
LVL 27

Assisted Solution

by:tliotta
tliotta earned 250 total points
ID: 41807786
"Best" way is probably to send some signal that the thread can react to to have it end itself. But that really isn't "kill" a thread. When you "kill" any process, it's almost not "graceful" by definition.
0

Featured Post

Don't Cry: How Liquid Web is Ensuring Security

WannaCry is just the start. Read how Liquid Web is protecting itself and its customers against new threats.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Setting up Secure Ubuntu server on VMware 1.      Insert the Ubuntu Server distribution CD or attach the ISO of the CD which is in the “Datastore”. Note that it is important to install the x64 edition on servers, not the X86 editions. 2.      Power on th…
In part one, we reviewed the prerequisites required for installing SQL Server vNext. In this part we will explore how to install Microsoft's SQL Server on Ubuntu 16.04.
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
The viewer will learn how to use the return statement in functions in C++. The video will also teach the user how to pass data to a function and have the function return data back for further processing.
Suggested Courses

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question