8 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Is it possible to display the clock (timing) on the screen all the time. (3 Replies)
Discussion started by: vino.paal
3 Replies
2. Programming
#include<iostream>
#include<time.h>
using namespace std;
int main()
{
system("date");
clock_t start = clock();
int i=9*8;
while(i--)
{
int j=9999999;
while(j--);
}
clock_t end = clock();
double elapsed =... (4 Replies)
Discussion started by: johnbach
4 Replies
3. Solaris
Hi there!!!
Need your help in solving some tricky problems.
Since clock() as such is buggy on SUN OS 5 we have started using gettimeofday() in our RTOS applications based on Solaris 9.
The problems we actually encountered previously were - the applications kind of freeze/hang eternally on... (1 Reply)
Discussion started by: smanu
1 Replies
4. UNIX for Advanced & Expert Users
Hi
We had a AIX box built last year but was set to the correct GMT time, but using DST time zone. In march this year the clocks went forward without issues. (if I remember a couple of weeks early due to the DST zone)
This year we decided to change the clock to the correct time zone before... (0 Replies)
Discussion started by: markab2
0 Replies
5. UNIX for Dummies Questions & Answers
Hi,
Is there a chance that the clock() call returns 0 eternally???
Using BSD. My RTOS application freezes inconsistently only on particular hosts. When debugging it, I came to see that the RTOS timer does not tick at times. The underlying system call is clock() & it always returns zero when the... (4 Replies)
Discussion started by: smanu
4 Replies
6. Programming
Hey all,
i need a program to get the CPU ticks at certain points of my program. So, i thought about using the clock function, but i'm having a hard time figuring out how it really works. I wrote this simple program to try to understand it but it made me feel more confused:
#include <stdio.h>... (5 Replies)
Discussion started by: kastrup_carioca
5 Replies
7. UNIX Desktop Questions & Answers
Guys could you please tell me which appropriate command is used to set hardware (BIOS) clock so that the system keeps time when it reboots & how it's used. I use Linux
Thank you (2 Replies)
Discussion started by: joseph kembo
2 Replies
8. UNIX for Dummies Questions & Answers
Hey ppl, i was wonddering, in mandrake, how to get the clok to display the time in non-military format....hehe thank you im just tired of looking at 18:00 hehe thank you (2 Replies)
Discussion started by: LolapaloL
2 Replies
clock_getres(3) Library Functions Manual clock_getres(3)
NAME
clock_getres - Gets the resolution for the specified clock (P1003.1b)
LIBRARY
Realtime Library (librt.so, librt.a)
SYNOPSIS
#include <time.h>
int clock_getres (
clockid_t clock_id,
struct timespec *res);
PARAMETERS
clock_id The clock type used to obtain the resolution. The CLOCK_REALTIME clock is supported and represents the TIME-OF-DAY clock for
the system.
*res A pointer to the timespec data structure that receives the value of the clock's resolution.
DESCRIPTION
The clock_getres function returns the resolution value for the specified clock. If the res argument is NULL, the clock resolution is not
returned.
RETURN VALUES
On a successful call, a value of 0 (zero) is returned.
On an unsuccessful call, a value of -1 is returned and errno is set to indicate that an error occurred.
ERRORS
The clock_getres function fails under the following condition:
[EINVAL] The clock_id argument does not specify a known clock.
RELATED INFORMATION
Functions: time(1), ctime(3), timer_settime(3)
Guide to Realtime Programming delim off
clock_getres(3)
