/* Copyright (C) 1991-2018 Free Software Foundation, Inc.

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This file is part of the GNU C Library.

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The GNU C Library is free software; you can redistribute it and/or

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modify it under the terms of the GNU Lesser General Public

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License as published by the Free Software Foundation; either

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version 2.1 of the License, or (at your option) any later version.

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The GNU C Library is distributed in the hope that it will be useful,

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

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Lesser General Public License for more details.

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You should have received a copy of the GNU Lesser General Public

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License along with the GNU C Library; if not, see

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<http://www.gnu.org/licenses/>. */

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#ifndef _SYS_VTIMES_H

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#define _SYS_VTIMES_H 1

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#include <features.h>

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__BEGIN_DECLS

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/* This interface is obsolete; use `getrusage' instead. */

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/* Granularity of the `vm_utime' and `vm_stime' fields of a `struct vtimes'.

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(This is the frequency of the machine's power supply, in Hz.) */

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#define VTIMES_UNITS_PER_SECOND 60

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struct vtimes

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{

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/* User time used in units of 1/VTIMES_UNITS_PER_SECOND seconds. */

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int vm_utime;

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/* System time used in units of 1/VTIMES_UNITS_PER_SECOND seconds. */

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int vm_stime;

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/* Amount of data and stack memory used (kilobyte-seconds). */

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unsigned int vm_idsrss;

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/* Amount of text memory used (kilobyte-seconds). */

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unsigned int vm_ixrss;

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/* Maximum resident set size (text, data, and stack) (kilobytes). */

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int vm_maxrss;

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/* Number of hard page faults (i.e. those that required I/O). */

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int vm_majflt;

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/* Number of soft page faults (i.e. those serviced by reclaiming

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a page from the list of pages awaiting reallocation. */

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int vm_minflt;

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/* Number of times a process was swapped out of physical memory. */

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int vm_nswap;

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/* Number of input operations via the file system. Note: This

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and `ru_oublock' do not include operations with the cache. */

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int vm_inblk;

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/* Number of output operations via the file system. */

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int vm_oublk;

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};

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/* If CURRENT is not NULL, write statistics for the current process into

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*CURRENT. If CHILD is not NULL, write statistics for all terminated child

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processes into *CHILD. Returns 0 for success, -1 for failure. */

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extern int vtimes (struct vtimes * __current, struct vtimes * __child) __THROW;

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__END_DECLS

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#endif /* sys/vtimes.h */

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