Get time with more precision

[Ezequiel]

Hi!
I need to get the time with more precision than seconds from the machine that is running my c++ program. I would need at least miliseconds.

I'm using GNU C++ under Linux.

Any ideas?

Thanks!
Eze. ---
Ezequiel Glinsky
eze@bumeran.com
Buenos Aires, Argentina

 

[Zyrenthian]

I remember something called nanosleep which would sleep for nano-seconds. I belive it came with its own time structure as well. Check the help files on nanosleep or grep for it in your include directory.

Matt

 

[Ezequiel]

I couldn't find any related time function to get the current time :-(
Eze. ---
Ezequiel Glinsky
eze@bumeran.com
Buenos Aires, Argentina

 

[Kenrae]

Try using

clock()

. Man clock should give you some clues.

 

[abp]

Try clock() / ftime()

Anand
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Mail me at abpillai@excite.com if you want additional help. I dont promise that I can solve your problem, but I will try my best.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 

[pve]

// Here is a snippet from a class static method of mine.
// This will give you current date/time to the millisecond.

#include <unistd.h>
#include <strstream>
#include <iomanip>
#include <cstring>

using namespace std;

// this const was part of a class...
const int getTimeOfDayBufferLength = 27;

// this function was a static method in that class...
char* myGetTimeOfDay(char* buffer, int bufferLength)
{
if (bufferLength<getTimeOfDayBufferLength)
{
buffer[0] = '\0';
}
else
{
timeval tv;
gettimeofday( &tv, NULL );
strftime( buffer, 20,
&quot;%Y/%m/%d %H:%M:%S&quot;, localtime(&tv.tv_sec) );
ostrstream ostr;
ostr << ':' << setfill('0') << setw(6) << tv.tv_usec
<< ends;
char* sp = ostr.str();
strcat(buffer, sp);
delete [] sp;
}
return buffer;
}

 

[brudnakm]

RTlinux supports the POSIX call clock_gettime(). This will give you the time in very fine resloution. May not be worth the hassle of installing RTlinux though.

Brudnakm.