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tasks/libposix/include/posix/sys/sysinfo.h

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+/* Copyright (C) 1996, 1999, 2001 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_SYSINFO_H
+#define _SYS_SYSINFO_H	1
+
+#include <features.h>
+
+#ifndef _LINUX_KERNEL_H
+/* Include our own copy of struct sysinfo to avoid binary compatability
+ * problems with Linux 2.4, which changed things.  Grumble, grumble. */
+#define SI_LOAD_SHIFT	16
+struct sysinfo {
+	long uptime;			/* Seconds since boot */
+	unsigned long loads[3];		/* 1, 5, and 15 minute load averages */
+	unsigned long totalram;		/* Total usable main memory size */
+	unsigned long freeram;		/* Available memory size */
+	unsigned long sharedram;	/* Amount of shared memory */
+	unsigned long bufferram;	/* Memory used by buffers */
+	unsigned long totalswap;	/* Total swap space size */
+	unsigned long freeswap;		/* swap space still available */
+	unsigned short procs;		/* Number of current processes */
+	unsigned short pad;			/* Padding needed for m68k */
+	unsigned long totalhigh;	/* Total high memory size */
+	unsigned long freehigh;		/* Available high memory size */
+	unsigned int mem_unit;		/* Memory unit size in bytes */
+	char _f[20-2*sizeof(long)-sizeof(int)];	/* Padding: libc5 uses this.. */
+};
+#endif
+
+__BEGIN_DECLS
+
+/* Returns information on overall system statistics.  */
+extern int sysinfo (struct sysinfo *__info) __THROW;
+
+
+/* Return number of configured processors.  */
+extern int get_nprocs_conf (void) __THROW;
+
+/* Return number of available processors.  */
+extern int get_nprocs (void) __THROW;
+
+
+/* Return number of physical pages of memory in the system.  */
+extern long int get_phys_pages (void) __THROW;
+
+/* Return number of available physical pages of memory in the system.  */
+extern long int get_avphys_pages (void) __THROW;
+
+__END_DECLS
+
+#endif	/* sys/sysinfo.h */