What is the concept behind writing a cancel operation in c++?

Posted by ToMan on Programmers See other posts from Programmers or by ToMan
Published on 2014-06-11T15:07:33Z Indexed on 2014/06/11 15:40 UTC
Read the original article Hit count: 182

Filed under:

c++

|

functions

I'm attempting to write a cancel operation for a software download application. This application will first transfer the software to the device and then install the software on it. (These are givens I'm not allowed to change).

What should the cancel operation do? When a user presses 'cancel', the application should stop transferring/installing the software immediately.

Question: Since I've never written a "cancel" function, I'm wondering what are the types of things to consider when writing the code, and what are the common bugs I should expect and how to deal with them?

Couldn't find anything in google so if you have some links that would be good reads I'd really appreciate it since I'm not looking for answers I'm just looking for guidelines/macro/concept help

© Programmers or respective owner

Related posts about c++

Which C++ book shold I get between "C++ Primer" vs "C++ Primer Plus"

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to learn C++ by using Vim and MinGW as compiler. I'm interesting at "C++ Primer (4th Edition)" and "C++ Primer Plus (5th Edition)" but I don't know how about it different. It has no book store that I can review those books, so I want to know, what is the different between those book and which… >>> More
C++ : C++ Primer (Stanley Lipmann) or The C++ programming language (special edition)

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a Computer Science degree (long2 time ago) .. I do know Java OOP but i am now trying to pick up C++. I do have C and of course data structure using C or pascal. I have started reading Bjarne Stroustrup book (The C++ Programming Language - Special Edition) but find it extremely difficult esp… >>> More
I need help on my C++ assignment using MS Visual C++

as seen on Stack Overflow - Search for 'Stack Overflow'
Ok, so I don't want you to do my homework for me, but I'm a little lost with this final assignment and need all the help I can get. Learning about programming is tough enough, but doing it online is next to impossible for me... Now, to get to the program, I am going to paste what I have so far. This… >>> More
Managed c++ std::string not accessible in unmanaged c++

as seen on Stack Overflow - Search for 'Stack Overflow'
In unmanaged c++ dll i have a function which takes constant std::string as argument Prototype : void read ( const std::string &imageSpec_ ) I call this function from managed c++ dll by passing a std::string. When i debug the unmanaged c++ code the parameter imageSpec_ shows the value correctly… >>> More
The Definitive C++ Book Guide and List

as seen on Stack Overflow - Search for 'Stack Overflow'
After more than a few questions about deciding on C++ books I thought we could make a better community wiki version. Providing QUALITY books and an approximate skill level. Maybe we can add a short blurb/description about each book that you have personally read / benefited from. Feel free to debate… >>> More

Related posts about functions

helper functions as static functions or procedural functions?

as seen on Stack Overflow - Search for 'Stack Overflow'
i wonder if one should create a helper function in a class as a static function or just have it declared as a procedural function? i tend to think that a static helper function is the right way to go cause then i can see what kind of helper function it is eg. Database::connect(), File::create(). what… >>> More
Static functions vs const functions

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm looking at a member function int funct(int x) const; And I'm wondering if static int funct(int x); would be better. If a member function doesn't use any of the member variables should it be static. Are there any things that would discourage this? >>> More
Delphi 2010 Wide functions vs. String functions

as seen on Stack Overflow - Search for 'Stack Overflow'
We're currently converting a Delphi 2007 project to Delphi 2010. We were already using Unicode (via WideStrings and TNT Unicode Controls). I was expecting to replace all Wide functions, e.g. WideUpperCase, with their equivalent, e.g. UpperCase, but they do not work the same way. For example, WideUpperCase… >>> More
Doxygen ignoring inherited functions, when class inherits privately but the functions declared publi

as seen on Stack Overflow - Search for 'Stack Overflow'
Sorry for long winded title, this makes a lot more sense with an example. Suppose we have a class A: class A { public: void someFunction(); void someOtherFunction(); }; And another class that privately inherits from A. However, we re-declare one of the inherited functions as… >>> More
Actionscript/Flex - Is it possible to dynamically extend an object, modify functions, add functions

as seen on Stack Overflow - Search for 'Stack Overflow'
I know this question might be frowned upon, but actionscript is a dynamic language similar to javascript and in javascript I can take an object from a library written by someone else and dynamically (at runtime) add/remove/modify functions, properties, prototypes etc. this is kind of like dynamically… >>> More