how do I wait x number of milliseconds??

[Oxymoron]

Hi.

Using just an iterative loop I want to wait for say 400 ms.
I dont want to use the sleep program, but if there are any other C functions or a way of figuring out how many iterations make up a millisecond that'd be great!

Any and all suggestions welcome.
Many thanks, jOe

we are all of us living in the gutter.
But some of us are looking at the stars.

 

[guggach]

man usleep()

guggach

 

[ArkM]

Windows API: void Sleep(unsigned long mswait);
Alas, no such portable C function...

 

[xwb]

There is a POSIX function called nanosleep but not all implementations have it. It doesn't exist in Windows. It exists in some implementations of Unix but not all.

So much for POSIX.

 

[theotyflos]

You can use select(). I'm no expert, but i think it exists in all implementations.

Theophilos.

-----------

There are only 10 kinds of people: Those who understand binary and those who don't.

 

[SandMacD]

try this function:

int suspend(int milisecs)
{


HANDLE hTimer = NULL;
LARGE_INTEGER liDueTime;

liDueTime.QuadPart=(-10000 * milisecs);

// Create a waitable timer.
hTimer = CreateWaitableTimer(NULL, TRUE, NULL);
if (!hTimer)
{
CloseHandle(hTimer);
return 1; // error creating timer
}


// Set a timer to wait for milisec miliseconds.
if (!SetWaitableTimer(hTimer, &liDueTime, 0, NULL, NULL, 0))
{
CloseHandle(hTimer);
return 2; // error setting timer
}

// Wait for the timer.

if (WaitForSingleObject(hTimer, (milisecs+10)) != WAIT_OBJECT_0)
{
CloseHandle(hTimer);
return 3; // failed
}

CloseHandle(hTimer);
return 0; // success

 

[kstargold]

I’m no expert, but doesn’t delay(500); work?

Kstar

 

[Hammer]

>>I’m no expert, but doesn’t delay(500); work?
Only if your compiler supports it. It's not a standard function.