Call the same function after a particular time repeatedly

[Digital Don]

Hi,

I want to write a program to simulate a cafetaria in which a customer enters the cafetaria every 10 ~ 50 seconds. So I wanted a function to be called every 10~50 seconds depending on what time is chosen by the random number generator.

I want to know which header file has the function whcih will help me repeat a function call every x seconds. I know there is one in the GLUT library but I want to use a non Graphics header file. So please let me know the header and function which will help me do my implementation.

another question is as follows, I have 2 probabilities i.e. 40% of people choose sandwish counter and 60% choose main. how do I select randomly if a customer should choose sandwich or main counter. Lemme know if anyone got any ideas.


Thank You in advance.

Regards
Digital Don

[Ganon11]

Hey,

Please take the time to look at the Stickies in any area you post in. Had you done so here, you would have seen the thread titled, "DO NOT POST QUESTIONS HERE." Oops! You probably meant to post this in the Forum section; I'll move it there.

[gpraghuram]

Hi,

I want to write a program to simulate a cafetaria in which a customer enters the cafetaria every 10 ~ 50 seconds. So I wanted a function to be called every 10~50 seconds depending on what time is chosen by the random number generator.

I want to know which header file has the function whcih will help me repeat a function call every x seconds. I know there is one in the GLUT library but I want to use a non Graphics header file. So please let me know the header and function which will help me do my implementation.

another question is as follows, I have 2 probabilities i.e. 40% of people choose sandwish counter and 60% choose main. how do I select randomly if a customer should choose sandwich or main counter. Lemme know if anyone got any ideas.


Thank You in advance.

Regards
Digital Don

Hi,
If you want to schedule your program to run every x seconds then you can use cron-tabin Unix and in windows you can use scheduled-task.

Raghuram

[Digital Don]

Hi,
If you want to schedule your program to run every x seconds then you can use cron-tabin Unix and in windows you can use scheduled-task.

Raghuram

Is this solution for programming or normal windows task thing...I wanted to know if there is a function in C++ whcih will recall a function every x seconds...

I dont want to run some program in a scheduled fashion...I want to write a C++ program which will simulate a cafetaria in whcih I need to know how to call a function every x second...


Thank You.

Regards,
Digital Don

[Suko]

Hi,

Just use #include <time.h> and use the time function to compare elapsed time.

On the percent q, theres lots ways, e.g get a random number upto 100 then if its <40 its the 40% if its >40 its the 60%

theres many more simpler quicker or better but im tired, its been a long day!

[ifitzgerald]

Is this solution for programming or normal windows task thing...I wanted to know if there is a function in C++ whcih will recall a function every x seconds...

I dont want to run some program in a scheduled fashion...I want to write a C++ program which will simulate a cafetaria in whcih I need to know how to call a function every x second...


Thank You.

Regards,
Digital Don

Hi,

The solution offered by Raghuram is to schedule a program to execute on a schedule (e.g. run a script every day at 5:00pm) and will not help you accomplish what you are trying to do.

If you're using Windows, the only way that I know of to call a function repeatedly at a set interval is by using Windows API calls, or a wrapper class to the API calls. You can find such a wrapper class here. I actually just implemented it today, and it works very well.

(Mods: This is a link to a programming blog. Since it's not a competing forum I thought it would be OK to post a link to it. If it's not please let me know).

You can also find a lot of information on timers by searching for "C++ timers" on your favorite search engine.