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sysstat/common.h

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/*
* sysstat: System performance tools for Linux
* (C) 1999-2022 by Sebastien Godard (sysstat <at> orange.fr)
*/
#ifndef _COMMON_H
#define _COMMON_H
/* Maximum length of sensors device name */
#define MAX_SENSORS_DEV_LEN 20
#include <time.h>
#include <sched.h> /* For __CPU_SETSIZE */
#include <limits.h>
#include <stdlib.h>
#include "systest.h"
#ifdef HAVE_SYS_SYSMACROS_H
/* Needed on some non-glibc environments */
#include <sys/sysmacros.h>
#endif
/*
***************************************************************************
* Various keywords and constants
***************************************************************************
*/
#define FALSE 0
#define TRUE 1
#define PLAIN_OUTPUT 0
#define DISP_HDR 1
/* Index in units array (see common.c) */
#define NO_UNIT -1
#define UNIT_SECTOR 0
#define UNIT_BYTE 1
#define UNIT_KILOBYTE 2
#define NR_UNITS 8
/* Timestamp buffer length */
#define TIMESTAMP_LEN 64
/* Number of seconds per day */
#define SEC_PER_DAY 3600 * 24
/* Maximum number of CPUs */
#if defined(__CPU_SETSIZE) && __CPU_SETSIZE > 8192
#define NR_CPUS __CPU_SETSIZE
#else
#define NR_CPUS 8192
#endif
/* Maximum number of interrupts */
#define NR_IRQS 4096
/* Size of /proc/interrupts line, CPU data excluded */
#define INTERRUPTS_LINE 128
/* Keywords */
#define K_ISO "ISO"
#define K_ALL "ALL"
#define K_LOWERALL "all"
#define K_LOWERSUM "sum"
#define K_UTC "UTC"
#define K_JSON "JSON"
/* Files */
#define __DISKSTATS "diskstats"
#define __BLOCK "block"
#define __DEV_BLOCK "dev/block"
#define SLASH_SYS PRE "/sys"
#define SLASH_DEV PRE "/dev/"
#define STAT PRE "/proc/stat"
#define UPTIME PRE "/proc/uptime"
#define DISKSTATS PRE "/proc/" __DISKSTATS
#define INTERRUPTS PRE "/proc/interrupts"
#define MEMINFO PRE "/proc/meminfo"
#define SYSFS_BLOCK SLASH_SYS "/" __BLOCK
#define SYSFS_DEV_BLOCK SLASH_SYS "/" __DEV_BLOCK
#define SYSFS_DEVCPU PRE "/sys/devices/system/cpu"
#define SYSFS_TIME_IN_STATE "cpufreq/stats/time_in_state"
#define S_STAT "stat"
#define DEVMAP_DIR PRE "/dev/mapper"
#define DEVICES PRE "/proc/devices"
#define SYSFS_USBDEV PRE "/sys/bus/usb/devices"
#define DEV_DISK_BY PRE "/dev/disk/by"
#define DEV_DISK_BY_ID PRE "/dev/disk/by-id"
#define SYSFS_IDVENDOR "idVendor"
#define SYSFS_IDPRODUCT "idProduct"
#define SYSFS_BMAXPOWER "bMaxPower"
#define SYSFS_MANUFACTURER "manufacturer"
#define SYSFS_PRODUCT "product"
#define SYSFS_FCHOST PRE "/sys/class/fc_host"
#define MAX_FILE_LEN 512
#define MAX_PF_NAME 1024
#define MAX_NAME_LEN 128
#define IGNORE_VIRTUAL_DEVICES FALSE
#define ACCEPT_VIRTUAL_DEVICES TRUE
/* Environment variables */
#define ENV_TIME_FMT "S_TIME_FORMAT"
#define ENV_TIME_DEFTM "S_TIME_DEF_TIME"
#define ENV_COLORS "S_COLORS"
#define ENV_COLORS_SGR "S_COLORS_SGR"
#define C_NEVER "never"
#define C_ALWAYS "always"
#define DIGITS "0123456789"
#define XDIGITS "0123456789-"
/*
***************************************************************************
* Macro functions definitions.
***************************************************************************
*/
/*
* Macro used to define activity bitmap size.
* All those bitmaps have an additional bit used for global activity
* (eg. CPU "all" or total number of interrupts). That's why we do "(m) + 1".
*/
#define BITMAP_SIZE(m) ((((m) + 1) >> 3) + 1)
/* Allocate and init structure */
#define SREALLOC(S, TYPE, SIZE) do { \
TYPE *_p_ = S; \
if ((SIZE) != 0) { \
if ((S = (TYPE *) realloc(S, (SIZE))) == NULL) { \
perror("realloc"); \
exit(4); \
} \
/* If the ptr was null, then it's a malloc() */ \
if (!_p_) { \
memset(S, 0, (SIZE)); \
} \
} \
if (!S) { \
/* Should never happen */ \
fprintf(stderr, "srealloc\n"); \
exit(4); \
} \
} while (0)
/*
* Macros used to display statistics values.
*
*/
/* With S_VALUE macro, the interval of time (@p) is given in 1/100th of a second */
#define S_VALUE(m,n,p) (((double) ((n) - (m))) / (p) * 100)
/* Define SP_VALUE() to normalize to % */
#define SP_VALUE(m,n,p) (((double) ((n) - (m))) / (p) * 100)
/*
* Under very special circumstances, STDOUT may become unavailable.
* This is what we try to guess here.
*/
#define TEST_STDOUT(_fd_) do { \
if (write(_fd_, "", 0) == -1) { \
perror("stdout"); \
exit(6); \
} \
} while (0)
#define MINIMUM(a,b) ((a) < (b) ? (a) : (b))
#define PANIC(m) sysstat_panic(__FUNCTION__, m)
/* Number of ticks per second */
#define HZ hz
extern unsigned long hz;
/* Number of bit shifts to convert pages to kB */
extern unsigned int kb_shift;
/*
* kB <-> number of pages.
* Page size depends on machine architecture (4 kB, 8 kB, 16 kB, 64 kB...)
*/
#define KB_TO_PG(k) ((k) >> kb_shift)
#define PG_TO_KB(k) ((k) << kb_shift)
/* Type of persistent device names used in sar and iostat */
extern char persistent_name_type[MAX_FILE_LEN];
/*
***************************************************************************
* Colors definitions
***************************************************************************
*/
#define C_LIGHT_RED "\e[31;22m"
#define C_BOLD_RED "\e[31;1m"
#define C_LIGHT_GREEN "\e[32;22m"
#define C_LIGHT_YELLOW "\e[33;22m"
#define C_BOLD_MAGENTA "\e[35;1m"
#define C_BOLD_BLUE "\e[34;1m"
#define C_LIGHT_BLUE "\e[34;22m"
#define C_NORMAL "\e[0m"
#define PERCENT_LIMIT_HIGH 75.0
#define PERCENT_LIMIT_LOW 50.0
#define MAX_SGR_LEN 16
#define IS_INT 0
#define IS_STR 1
#define IS_RESTART 2
#define IS_DEBUG IS_RESTART
#define IS_COMMENT 3
#define IS_ZERO 4
/*
***************************************************************************
* Structures definitions
***************************************************************************
*/
/* Structure used for extended disk statistics */
struct ext_disk_stats {
double util;
double await;
double arqsz;
};
/*
***************************************************************************
* Functions prototypes
***************************************************************************
*/
void print_version
(void);
void get_HZ
(void);
void get_kb_shift
(void);
time_t get_localtime
(struct tm *, int);
time_t get_time
(struct tm *, int);
void init_nls
(void);
int is_device
(char *, char *, int);
void sysstat_panic
(const char *, int);
int extract_wwnid
(char *, unsigned long long *, unsigned int *);
int get_wwnid_from_pretty
(char *, unsigned long long *, unsigned int *);
int check_dir
(char *);
void check_overflow
(unsigned int, unsigned int, unsigned int);
#ifndef SOURCE_SADC
int count_bits
(void *, int);
int count_csvalues
(int, char **);
void cprintf_f
(int, int, int, int, ...);
void cprintf_in
(int, char *, char *, int);
void cprintf_pc
(int, int, int, int, ...);
void cprintf_s
(int, char *, char *);
void cprintf_u64
(int, int, int, ...);
void cprintf_x
(int, int, ...);
char *device_name
(char *);
char *get_device_name
(unsigned int, unsigned int, unsigned long long [],
unsigned int, unsigned int, unsigned int, unsigned int, char *);
unsigned int get_devmap_major
(void);
unsigned long long get_interval
(unsigned long long, unsigned long long);
char *get_persistent_name_from_pretty
(char *);
char *get_persistent_type_dir
(char *);
char *get_pretty_name_from_persistent
(char *);
int get_sysfs_dev_nr
(int);
int get_win_height
(void);
void init_colors
(void);
double ll_sp_value
(unsigned long long, unsigned long long, unsigned long long);
int is_iso_time_fmt
(void);
int parse_range_values
(char *t, int, int *, int *);
int parse_values
(char *, unsigned char[], int, const char *);
int print_gal_header
(struct tm *, char *, char *, char *, char *, int, int);
int set_report_date
(struct tm *, char[], int);
char *strtolower
(char *);
void xprintf
(int, const char *, ...);
void xprintf0
(int, const char *, ...);
#endif /* SOURCE_SADC undefined */
#endif /* _COMMON_H */
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