Current File : //usr/include/bits/types/struct_rusage.h
/* Define struct rusage.
Copyright (C) 1994-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU 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 2.1 of the License, or (at your option) any later version.
The GNU 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 GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef __rusage_defined
#define __rusage_defined 1
#include <bits/types.h>
#include <bits/types/struct_timeval.h>
/* Structure which says how much of each resource has been used. */
/* The purpose of all the unions is to have the kernel-compatible layout
while keeping the API type as 'long int', and among machines where
__syscall_slong_t is not 'long int', this only does the right thing
for little-endian ones, like x32. */
struct rusage
{
/* Total amount of user time used. */
struct timeval ru_utime;
/* Total amount of system time used. */
struct timeval ru_stime;
/* Maximum resident set size (in kilobytes). */
__extension__ union
{
long int ru_maxrss;
__syscall_slong_t __ru_maxrss_word;
};
/* Amount of sharing of text segment memory
with other processes (kilobyte-seconds). */
/* Maximum resident set size (in kilobytes). */
__extension__ union
{
long int ru_ixrss;
__syscall_slong_t __ru_ixrss_word;
};
/* Amount of data segment memory used (kilobyte-seconds). */
__extension__ union
{
long int ru_idrss;
__syscall_slong_t __ru_idrss_word;
};
/* Amount of stack memory used (kilobyte-seconds). */
__extension__ union
{
long int ru_isrss;
__syscall_slong_t __ru_isrss_word;
};
/* Number of soft page faults (i.e. those serviced by reclaiming
a page from the list of pages awaiting reallocation. */
__extension__ union
{
long int ru_minflt;
__syscall_slong_t __ru_minflt_word;
};
/* Number of hard page faults (i.e. those that required I/O). */
__extension__ union
{
long int ru_majflt;
__syscall_slong_t __ru_majflt_word;
};
/* Number of times a process was swapped out of physical memory. */
__extension__ union
{
long int ru_nswap;
__syscall_slong_t __ru_nswap_word;
};
/* Number of input operations via the file system. Note: This
and `ru_oublock' do not include operations with the cache. */
__extension__ union
{
long int ru_inblock;
__syscall_slong_t __ru_inblock_word;
};
/* Number of output operations via the file system. */
__extension__ union
{
long int ru_oublock;
__syscall_slong_t __ru_oublock_word;
};
/* Number of IPC messages sent. */
__extension__ union
{
long int ru_msgsnd;
__syscall_slong_t __ru_msgsnd_word;
};
/* Number of IPC messages received. */
__extension__ union
{
long int ru_msgrcv;
__syscall_slong_t __ru_msgrcv_word;
};
/* Number of signals delivered. */
__extension__ union
{
long int ru_nsignals;
__syscall_slong_t __ru_nsignals_word;
};
/* Number of voluntary context switches, i.e. because the process
gave up the process before it had to (usually to wait for some
resource to be available). */
__extension__ union
{
long int ru_nvcsw;
__syscall_slong_t __ru_nvcsw_word;
};
/* Number of involuntary context switches, i.e. a higher priority process
became runnable or the current process used up its time slice. */
__extension__ union
{
long int ru_nivcsw;
__syscall_slong_t __ru_nivcsw_word;
};
};
#endif
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