procps/proc/sysinfo.h

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C
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#ifndef PROC_SYSINFO_H
#define PROC_SYSINFO_H
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#include <sys/types.h>
#include <sys/dir.h>
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#include "procps.h"
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EXTERN_C_BEGIN
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extern unsigned long long Hertz; /* clock tick frequency */
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extern long smp_num_cpus; /* number of CPUs */
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#if 0
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#define JT double
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extern void seven_cpu_numbers(JT *uret, JT *nret, JT *sret, JT *iret, JT *wret, JT *xret, JT *yret);
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#undef JT
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#endif
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extern int uptime (double *uptime_secs, double *idle_secs);
extern void loadavg(double *av1, double *av5, double *av15);
/* obsolete */
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extern unsigned long kb_main_shared;
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/* old but still kicking -- the important stuff */
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extern unsigned long kb_main_buffers;
extern unsigned long kb_main_cached;
extern unsigned long kb_main_free;
extern unsigned long kb_main_total;
extern unsigned long kb_swap_free;
extern unsigned long kb_swap_total;
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/* recently introduced */
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extern unsigned long kb_high_free;
extern unsigned long kb_high_total;
extern unsigned long kb_low_free;
extern unsigned long kb_low_total;
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/* 2.4.xx era */
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extern unsigned long kb_active;
extern unsigned long kb_inact_laundry; // grrr...
extern unsigned long kb_inact_dirty;
extern unsigned long kb_inact_clean;
extern unsigned long kb_inact_target;
extern unsigned long kb_swap_cached; /* late 2.4+ */
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/* derived values */
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extern unsigned long kb_swap_used;
extern unsigned long kb_main_used;
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/* 2.5.41+ */
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extern unsigned long kb_writeback;
extern unsigned long kb_slab;
extern unsigned long nr_reversemaps;
extern unsigned long kb_committed_as;
extern unsigned long kb_dirty;
extern unsigned long kb_inactive;
extern unsigned long kb_mapped;
extern unsigned long kb_pagetables;
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#define BUFFSIZE 8192
typedef unsigned long long jiff;
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extern void getstat(jiff *restrict cuse, jiff *restrict cice, jiff *restrict csys, jiff *restrict cide, jiff *restrict ciow, jiff *restrict cxxx, jiff *restrict cyyy,
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unsigned long *restrict pin, unsigned long *restrict pout, unsigned long *restrict s_in, unsigned long *restrict sout,
unsigned *restrict intr, unsigned *restrict ctxt,
unsigned int *restrict running, unsigned int *restrict blocked,
unsigned int *restrict btime, unsigned int *restrict processes);
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extern void meminfo(void);
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extern unsigned long vm_nr_dirty;
extern unsigned long vm_nr_writeback;
extern unsigned long vm_nr_pagecache;
extern unsigned long vm_nr_page_table_pages;
extern unsigned long vm_nr_reverse_maps;
extern unsigned long vm_nr_mapped;
extern unsigned long vm_nr_slab;
extern unsigned long vm_pgpgin;
extern unsigned long vm_pgpgout;
extern unsigned long vm_pswpin;
extern unsigned long vm_pswpout;
extern unsigned long vm_pgalloc;
extern unsigned long vm_pgfree;
extern unsigned long vm_pgactivate;
extern unsigned long vm_pgdeactivate;
extern unsigned long vm_pgfault;
extern unsigned long vm_pgmajfault;
extern unsigned long vm_pgscan;
extern unsigned long vm_pgrefill;
extern unsigned long vm_pgsteal;
extern unsigned long vm_kswapd_steal;
extern unsigned long vm_pageoutrun;
extern unsigned long vm_allocstall;
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extern void vminfo(void);
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typedef struct disk_stat{
unsigned long long reads_sectors;
unsigned long long written_sectors;
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char disk_name [16];
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unsigned inprogress_IO;
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unsigned merged_reads;
unsigned merged_writes;
unsigned milli_reading;
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unsigned milli_spent_IO;
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unsigned milli_writing;
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unsigned partitions;
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unsigned reads;
unsigned weighted_milli_spent_IO;
unsigned writes;
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}disk_stat;
typedef struct partition_stat{
char partition_name [16];
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unsigned long long reads_sectors;
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unsigned parent_disk; // index into a struct disk_stat array
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unsigned reads;
unsigned writes;
unsigned requested_writes;
}partition_stat;
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extern unsigned int getpartitions_num(struct disk_stat *disks, int ndisks);
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extern unsigned int getdiskstat (struct disk_stat**,struct partition_stat**);
typedef struct slab_cache{
char name[48];
unsigned active_objs;
unsigned num_objs;
unsigned objsize;
unsigned objperslab;
}slab_cache;
extern unsigned int getslabinfo (struct slab_cache**);
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extern unsigned get_pid_digits(void) FUNCTION;
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EXTERN_C_END
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#endif /* SYSINFO_H */