1 /* Copyright (C) 1996, 1999, 2001 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <http://www.gnu.org/licenses/>. */ 17 18 #ifndef _SYS_SYSINFO_H 19 #define _SYS_SYSINFO_H 1 20 21 #include <features.h> 22 23 #ifndef _LINUX_KERNEL_H 24 /* Include our own copy of struct sysinfo to avoid binary compatability 25 * problems with Linux 2.4, which changed things. Grumble, grumble. */ 26 #define _LINUX_SYSINFO_H 27 28 #define SI_LOAD_SHIFT 16 29 struct sysinfo { 30 long uptime; /* Seconds since boot */ 31 unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ 32 unsigned long totalram; /* Total usable main memory size */ 33 unsigned long freeram; /* Available memory size */ 34 unsigned long sharedram; /* Amount of shared memory */ 35 unsigned long bufferram; /* Memory used by buffers */ 36 unsigned long totalswap; /* Total swap space size */ 37 unsigned long freeswap; /* swap space still available */ 38 unsigned short procs; /* Number of current processes */ 39 unsigned short pad; /* Padding needed for m68k */ 40 unsigned long totalhigh; /* Total high memory size */ 41 unsigned long freehigh; /* Available high memory size */ 42 unsigned int mem_unit; /* Memory unit size in bytes */ 43 char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ 44 }; 45 #endif 46 47 __BEGIN_DECLS 48 49 /* Returns information on overall system statistics. */ 50 extern int sysinfo (struct sysinfo *__info) __THROW; 51 52 /* Return number of configured processors. */ 53 #define get_nprocs_conf() (sysconf(_SC_NPROCESSORS_CONF)) 54 55 /* Return number of available processors. */ 56 #define get_nprocs() (sysconf(_SC_NPROCESSORS_ONLN)) 57 58 59 #if 0 60 /* Return number of physical pages of memory in the system. */ 61 extern long int get_phys_pages (void) __THROW; 62 63 /* Return number of available physical pages of memory in the system. */ 64 extern long int get_avphys_pages (void) __THROW; 65 #endif 66 67 __END_DECLS 68 69 #endif /* sys/sysinfo.h */ 70