mirror of
https://gitlab.com/sortix/sortix.git
synced 2023-02-13 20:55:38 -05:00
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
|
/*******************************************************************************
|
||
|
|
|
||
|
|
Copyright(C) Jonas 'Sortie' Termansen 2013.
|
||
|
|
|
||
|
|
This file is part of the Sortix C Library.
|
||
|
|
|
||
|
|
The Sortix C Library is free software: you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU Lesser General Public License as published by
|
||
|
|
the Free Software Foundation, either version 3 of the License, or (at your
|
||
|
|
option) any later version.
|
||
|
|
|
||
|
|
The Sortix C Library is distributed in the hope that it will be useful, but
|
||
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
||
|
|
License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public License
|
||
|
|
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
sys/resource/getrusage.cpp
|
||
|
|
Get resource usage statistics.
|
||
|
|
|
||
|
|
*******************************************************************************/
|
||
|
|
|
||
|
|
#include <sys/resource.h>
|
||
|
|
#include <sys/syscall.h>
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <time.h>
|
||
|
|
#include <timespec.h>
|
||
|
|
|
||
|
|
static struct timeval timeval_of_timespec(struct timespec ts)
|
||
|
|
{
|
||
|
|
struct timeval tv;
|
||
|
|
tv.tv_sec = ts.tv_sec;
|
||
|
|
tv.tv_usec = ts.tv_nsec / 1000;
|
||
|
|
return tv;
|
||
|
|
}
|
||
|
|
|
||
|
|
extern "C" int getrusage(int who, struct rusage* usage)
|
||
|
|
{
|
||
|
|
struct tmns tmns;
|
||
|
|
if ( timens(&tmns) != 0 )
|
||
|
|
return -1;
|
||
|
|
if ( who == RUSAGE_SELF )
|
||
|
|
{
|
||
|
|
usage->ru_utime = timeval_of_timespec(tmns.tmns_utime);
|
||
|
|
usage->ru_stime = timeval_of_timespec(tmns.tmns_stime);
|
||
|
|
}
|
||
|
|
else if ( who == RUSAGE_CHILDREN )
|
||
|
|
{
|
||
|
|
usage->ru_utime = timeval_of_timespec(tmns.tmns_cutime);
|
||
|
|
usage->ru_stime = timeval_of_timespec(tmns.tmns_cstime);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
return errno = EINVAL, -1;
|
||
|
|
return 0;
|
||
|
|
}
|