I'm trying generate an interrupt every 1 seconds using itimer and My clock is not running. This is what i did :
printf("about to sleep for 1 second \n");
signal(SIGALRM, wakeup);
//myTimer.it_interval.tv_sec=0;
//myTimer.it_interval.tv_usec =0;
... (5 Replies)
anyone can help me how to implement the timer on AIX?
I tried with 'setitimer' and its related functions, but it does not work correctly,the program exited each time.
thanks (2 Replies)
Hi!,
My shell script takes a quite a long time to execute.. Nothing appears on the screen during this period.. User are left guessing... whats going on????????????
Any ideas on how to create a small timer script which print a word on screen say " wait.. Program running" after every 10 seconds... (3 Replies)
Hi all,
Wanted to a create a shell script
-----------------------------------------------------------------------
1) which when called will start a timer and wait for 48 hours.
after 48 hours it will call some function(say XYZ)
2) Whenever this shell script is called (can be called... (3 Replies)
Hello fellows,
I am new in this forum, i would appreciate your assistance.
I need a timming system for my vnc desktops (Cybercafe timer stuff).
Each unix user login to my server only with vnc, and i want to write a program that can generate timer tickets and have control on the time used for... (0 Replies)
Hello fellows,
I am new in this forum, i would appreciate your assistance.
I need a timming system for my vnc desktops (Cybercafe timer stuff).
Each unix user login to my server only with vnc, and i want to write a program that can generate timer tickets and have control on the time used for... (1 Reply)
hello all
since a process running in kernel mode cannnot be preempted by any other process what would be the status of Timer interrupt that occurs when the time quantum of a process is elapsed?
thanks (2 Replies)
How do you set timer as output to the command line so that you get an output like
Has been waiting for 5 seconds
Has been waiting for 6 seconds
...
Where only the number changes. (2 Replies)
Discussion started by: locoroco
2 Replies
LEARN ABOUT ULTRIX
settimeofday
gettimeofday(2) System Calls Manual gettimeofday(2)Name
gettimeofday, settimeofday - get or set date and time
Syntax
#include <sys/time.h>
gettimeofday(tp, tzp)
struct timeval *tp;
struct timezone *tzp;
settimeofday(tp, tzp)
struct timeval *tp;
struct timezone *tzp;
Description
The system call returns the system's notion of the current Greenwich time and the current time zone. Time returned is expressed relative
in seconds and microseconds since midnight January 1, 1970.
The structures pointed to by tp and tzp are defined in <sys/time.h> as:
struct timeval {
long tv_sec; /* seconds since Jan. 1, 1970 */
long tv_usec; /* and microseconds */
};
struct timezone {
int tz_minuteswest; /* of Greenwich */
int tz_dsttime; /* type of dst correction to apply */
};
The timezone structure indicates the local time zone (measured in minutes of time westward from Greenwich), and a flag that, if nonzero,
indicates that Daylight Saving time applies locally during the appropriate part of the year.
Only the superuser can set the time of day.
Return Values
A 0 return value indicates that the call succeeded. A -1 return value indicates an error occurred, and in this case an error code is
stored into the global variable errno.
Diagnostics
The call fails under the following conditions:
[EFAULT] An argument address referenced invalid memory.
[EPERM] A user other than the superuser attempted to set the time.
See Alsodate(1), stime(2), ctime(3)gettimeofday(2)