Hi guys,
I know that this topic has been discuss numerous times, and I have search the net and this forum for it.
However, non able to address the problem I faced so far.
I am on Solaris Platform and unable to install additional packages like the GNU date and gawk to make use of their... (5 Replies)
Hello All,
I have a problem calculating the time difference between start and end timings...!
the timings are given by 24hr format..
Start Date : 08/05/10 12:55
End Date : 08/09/10 06:50
above values are in mm/dd/yy hh:mm format.
Now the thing is, 7th(08/07/10) and... (16 Replies)
I have a cluster of two Solaris server (veritas cluster). one working and the other is standby
I am going to change the date on them , and am looking for a secure solution as it is giving an important service.
my opinion is that the active one doesn't need to be restarted (if I don't change the... (1 Reply)
I needed some help in adding a duration (in seconds) to a start time (in hhmmss format) and a start date (in mmddyy format) in order to get an end date and end time. The concept of a leap year is also to be considered while incrementing the day. The code/ function that I have formed so far is as... (3 Replies)
Hi guys thanks for the help for my previous posts.Now i have a requirement that i download a XMl file which has UTC time stamp.I need to convert UTC time into Unix server timezone.
For ex if the time zone of unix server is CDT then i need to convert into CDT.whatever may be the system time... (5 Replies)
Dear all,
I am kindly seeking assistance on the following issue.
I am working with data that is sampled every 0.05 hours (that is 3 minutes intervals) here is a sample data from the file
5.00000 15.5030
5.05000 15.6680
5.10000 16.0100
5.15000 16.3450
5.20000 16.7120
5.25000... (4 Replies)
Hi All,
I have one file which contains time for request and response.
I want to calculate time difference in milliseconds for each line.
This file can contain 10K lines.
Sample file with 4 lines.
for first line.
Request Time: 15:23:45,255
Response Time: 15:23:45,258
Time diff... (6 Replies)
Discussion started by: Raza Ali
6 Replies
LEARN ABOUT NETBSD
timespec_to_timeval
TIMEVAL(3) BSD Library Functions Manual TIMEVAL(3)NAME
timeval, timespec, itimerval, itimerspec, bintime -- time structures
SYNOPSIS
#include <sys/time.h>
void
TIMEVAL_TO_TIMESPEC(struct timeval *tv, struct timespec *ts);
void
TIMESPEC_TO_TIMEVAL(struct timeval *tv, struct timespec *ts);
DESCRIPTION
The <sys/time.h> header, included by <time.h>, defines various structures related to time and timers.
1. The following structure is used by gettimeofday(2), among others:
struct timeval {
time_t tv_sec;
suseconds_t tv_usec;
};
The tv_sec member represents the elapsed time, in whole seconds. The tv_usec member captures rest of the elapsed time, represented as
the number of microseconds.
2. The following structure is used by nanosleep(2), among others:
struct timespec {
time_t tv_sec;
long tv_nsec;
};
The tv_sec member is again the elapsed time in whole seconds. The tv_nsec member represents the rest of the elapsed time in nanosec-
onds.
A microsecond is equal to one millionth of a second, 1000 nanoseconds, or 1/1000 milliseconds. To ease the conversions, the macros
TIMEVAL_TO_TIMESPEC() and TIMESPEC_TO_TIMEVAL() can be used to convert between struct timeval and struct timespec.
3. The following structure is used by setitimer(2), among others:
struct itimerval {
struct timeval it_interval;
struct timeval it_value;
};
4. The following structure is used by timer_settime(2), among others:
struct itimerspec {
struct timespec it_interval;
struct timespec it_value;
};
Both struct itimerval and struct itimerspec are used to specify when a timer expires. Generally, it_interval specifies the period
between successive timer expirations. A value zero implies that the alarm will fire only once. If it_value is non-zero, it indicates
the time left to the next timer expiration. A value zero implies that the timer is disabled.
5. The following structure is used by bintime(9), among others:
struct bintime {
time_t sec;
uint64_t frac;
};
The sec member specifies the time in seconds and frac represents a 64-bit fraction of seconds. The struct bintime is meant to be used
in the kernel only. It is further described in timecounter(9).
EXAMPLES
It can be stressed that the traditional UNIX timeval and timespec structures represent elapsed time, measured by the system clock (see
hz(9)). The following sketch implements a function suitable for use in a context where the timespec structure is required for a conditional
timeout:
static void
example(struct timespec *spec, time_t minutes)
{
struct timeval elapsed;
(void)gettimeofday(&elapsed, NULL);
_DIAGASSERT(spec != NULL);
TIMEVAL_TO_TIMESPEC(&elapsed, spec);
/* Add the offset for timeout in minutes. */
spec->tv_sec = spec->tv_sec + minutes * 60;
}
A better alternative would use the more precise clock_gettime(2).
SEE ALSO timeradd(3), tm(3), bintime_add(9)BSD April 12, 2011 BSD