89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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/**
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* @file sys/sysinfo.h
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* @brief System information.
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*/
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#include <sys/cdefs.h>
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#include <linux/kernel.h>
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__BEGIN_DECLS
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/**
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* [sysinfo(2)](http://man7.org/linux/man-pages/man2/sysinfo.2.html) queries system information.
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*
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* Returns 0 on success, and returns -1 and sets `errno` on failure.
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*/
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int sysinfo(struct sysinfo* __info);
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/**
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* [get_nprocs_conf(3)](http://man7.org/linux/man-pages/man3/get_nprocs_conf.3.html) returns
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* the total number of processors in the system.
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*
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* Available since API level 23.
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*
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* See also sysconf().
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*/
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int get_nprocs_conf(void) __INTRODUCED_IN(23);
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/**
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* [get_nprocs(3)](http://man7.org/linux/man-pages/man3/get_nprocs.3.html) returns
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* the number of processors in the system that are currently on-line.
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*
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* Available since API level 23.
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*
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* See also sysconf().
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*/
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int get_nprocs(void) __INTRODUCED_IN(23);
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/**
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* [get_phys_pages(3)](http://man7.org/linux/man-pages/man3/get_phys_pages.3.html) returns
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* the total number of physical pages in the system.
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*
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* Available since API level 23.
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*
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* See also sysconf().
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*/
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long get_phys_pages(void) __INTRODUCED_IN(23);
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/**
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* [get_avphys_pages(3)](http://man7.org/linux/man-pages/man3/get_avphys_pages.3.html) returns
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* the number of physical pages in the system that are currently available.
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*
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* Available since API level 23.
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*
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* See also sysconf().
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*/
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long get_avphys_pages(void) __INTRODUCED_IN(23);
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__END_DECLS
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