Timer

Hi /prog/,

I know intermediate level Visual Basic (yes i know it's AIDS) and am learning C. I'm just wondering if there's a way to implement timer like functionality in C and if there is how to go about it.

Use a for loop with a sufficiently large number.

sleep()

No, in ISO C you cannot have that.
You can, however use sleep() and nanosleep() in POSIX.1(b).
(and there are other techniques, using select(), or if you are aware of the kernel running, syscall())

>>2
DON'T HELP HIM!

>>2
that's one of the worst ideas I've ever heard.

>>4
On Windows:
#include <windows.h>

On UNIX/BSD/etc.:
#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>

And finally:
timeval waittime;
waittime.tv_sec = SecondstoWait;
waittime.tv_usec = MicroSecondsToWait;
select( 0, NULL, NULL, NULL, &waittime );

But in most cases the system-timer has got only Millisecond-resolution.
I'm pretty sure the last sentence is wrong. Sorry for that.
Btw.: select( ) is a socket-function.

Depends on what you want to do, but while(true) in combination with break usually works for me.

>>7
Btw.: select( ) is a socket-function.
lol faggot.
select() is not a "socket function".
select() waits for a number of file descriptors to change status.
man 2 select.

>>1
On which platform? The C library doesn't define any timer routines.

>>10
You mean the C standard. not library.

signal(SIGALRM, dostuff);
setitimer(ITIMER_REAL, ...);

>>6
Welcome to /prog/

>>6
jmp_buf env;
if (_setjmp(env) < when)
    _longjmp(env, time(NULL));

>>14
minus the underscore, faggot.
setjmp/longjmp are ISO C in <setjmp.h>

The underscore is correct, faggot.

>>11
Yes, quite.