IT's not hard to measure the elapsed time:
Put Perderabo's code in a script, call it usleep.sh
will give you something like this:
real is the elapsed time.
If I want a script to sleep for less than a second, would I use a decimal? In other words, if I wanted my script to sleep for 1/4 of a second, would I say, SLEEP .25 ?? (5 Replies)
I have a function that quits a program when <ctrl>c is entered as per following code;
void quitter (void)
{
clear ();
mvprintw (QUITTER_ROW, QUITTER_COL, "Quitting...");
refresh ();
sleep (15);
endwin ();
exit (1);
}This function is called thus;
signal (SIGINT, quitter);
It... (2 Replies)
I am in need of some help; think I have confused myself.
Here is the issue I am faced with.
The script log file was fine, the nohup.out file has tens of thousands of lines like illegal use of sleep: sleep seconds
So I assume there is something with the seconds calculation in the script... (1 Reply)
Hi All I have a requiremnt to run a script inside another script.
here i am pulling the record count from the table in oracle.If record count is greater than 0 the script is executed.The scripts updates the count in the table and again the count is found out and the condition is checked and same... (3 Replies)
This is a very crude attempt in Bash at something that I needed but didn't seem to find in the 'sleep' command. However, I would like to be able to do it without the need for the temp file. Please go easy on me if this is already possible in some other way:
How many times have you used the... (5 Replies)
This might be one of the dumbest questions you've got, but please bear with me:
I am a UNIX beginner. I had an test today and I was asked the following question:
Q. How do you put the terminal into sleep indefinitely?
I didn't know the answer, but after I came home, I tried the following... (9 Replies)
Hi,
I am a newbie in UNIX
please help me develop code for below logic:--
I want my script to implement sleep until a specified time(date doesn't matter)
----------------------------------------
While currenttime > 14:00 and < 18:00
sleep
end while
run command
exit... (9 Replies)
Hi,
I have a script that runs a process at the beginning and I want to sleep/wait until this process is finished and then continue with the rest of the script. I am trying with this, but it is not working:
process=`ps -ef | grep "proc_p01 -c" | grep -v grep | wc -l`
if ; do
sleep 10
done... (7 Replies)
Discussion started by: apenkov
7 Replies
LEARN ABOUT DEBIAN
ggcurtime
ggCurTime(3) GGI ggCurTime(3)NAME
ggCurTime, ggUSleep, ggUSlumber - Portable Time Routines
SYNOPSIS
#include <ggi/gg.h>
int ggCurTime(struct timeval *tv);
int ggUSleep(int32_t usecs);
void ggUSlumber(int32_t usecs);
DESCRIPTION
ggCurTime fills the timeval structure pointed to by tv with the current time to the best precision available on the executing platform.
ggUSleep sleeps for at least usecs microseconds, to the best precision available on the executing platform, but may be woken up by a signal
or other unspecified condition. It is not guaranteed that ggUSleep will wake up prematurely for any specific reason. It is mainly useful
for points where the main objective is to avoid using CPU resources, not to perform accurate timing.
ggUSlumber does the same thing as ggUSleep, but is guaranteed not to return until the allotted time has elapsed. It is slightly less effi-
cient than ggUSleep with reguard to CPU utilization.
All times represent wall-clock (real, versus processor) times.
The above routines are often simple macros rather than functions, and as such should not be used by reference.
The above functions are threadsafe, but are not guaranteed to be safe to use in a thread that may be cancelled during their execution.
They are also not guaranteed to be safe to use in special contexts such as LibGG task handlers, signal handlers and asyncronous procedure
calls.
RETURN VALUE
ggCurTime returns GGI_OK on success, or a negative value on failure. On Windows, this function will never report a failure. On platforms
where gettimeofday(2) is used, the error code is the one returned by gettimeofday.
ggUSleep returns GGI_OK when the alloted time interval has elapsed, or a non-zero value if the sleep was interrupted. On platforms where
usleep(3) is used, the error code is the one return by usleep.
EXAMPLE
A demonstration on how to measure a framerate.
struct timeval start, stop, diff;
long time_of_frame = 1;
int framerate;
...
ggCurTime(&start);
/* do something here, i.e. render and display a frame */
ggCurTime(&stop);
diff.tv_sec = stop_tv.tv_sec - start_tv.tv_sec;
diff.tv_usec = stop_tv.tv_usec - start_tv.tv_usec;
if (diff.tv_usec < 0) {
diff.tv_usec += 1000000;
diff.tv_sec--;
}
time_of_frame = diff.tv_sec * 1000 + diff.tv_usec / 1000;
if (time_of_frame == 0)
time_of_frame = 1; /* CPU too fast? */
printf("framerate: %i
", 1000 / time_of_framerate);
SEE ALSO gettimeofday(2), usleep(3)libgg-1.0.x 2005-08-26 ggCurTime(3)