C / C++ / MFC

17-Jul-05 1:38

is there any way to slow a loop down my program is 1 big loop and it runs my cpu at almost 100% how can i cut it down to between 50 and 75%?
i would ask about making it run in the background but thats way over my head lol would like to know how to code a stop and pause button for it tho.

CodeBeetle17-Jul-05 9:25

CodeBeetle

17-Jul-05 9:25

maybe use the Sleep(1); function. That will make the thread sleep for 1ms so that other threads can execute.

CodeBeetle.Com

locoone17-Jul-05 18:34

17-Jul-05 18:34

Sleep(1); makes the program lock up

khan++17-Jul-05 18:56

17-Jul-05 18:56

Use a Thread for the task, and lower the priority of the thread.
For Stop, signal the thread to stop, like: make the loop test variable = 0; so the loop would stop.
For Pause, use SuspendThread() and ResumeThread().

this is this.

locoone17-Jul-05 20:40

17-Jul-05 20:40

im a noob that is russian to me Frown | :(

khan++17-Jul-05 21:50

17-Jul-05 21:50

#include <windows.h>
#include <conio.h>
#include <stdio.h>

bool g_bWorking;
void Worker()
{
while (g_bWorking)
{
//this is the loop where the program does all the work.
printf("ASD");
}
}

unsigned long __stdcall Thread(void* lpVoid)
{
Worker();
return 0;
}
main()
{
unsigned long id;
HANDLE h;
g_bWorking = TRUE;
h = CreateThread(NULL,0,Thread,0,CREATE_SUSPENDED,&id);
SetThreadPriority(h,THREAD_PRIORITY_LOWEST);
ResumeThread(h);
getch();
SuspendThread(h);
getch();
ResumeThread(h);
getch();
return 0;
}
It will start the thread, then on keypress, pause it, then on keypress resume it. You can see the result by running this console application.
When you need to stop it, make g_bWorking = false.
And by-the-way, are you writing a console app, or a windows app?

this is this.

locoone17-Jul-05 21:53

17-Jul-05 21:53

windows app

khan++17-Jul-05 22:02

17-Jul-05 22:02

Please also specify if you are using MFC or Win32. Is it a dialog-based application?
And Is the worker() function a member of your class?

this is this.

locoone17-Jul-05 22:04

17-Jul-05 22:04

it is mfc and dialog and the last im not sure what ya mean

khan++17-Jul-05 22:48