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sa.h
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sa.h
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/*
* sar/sadc: Report system activity
* (C) 1999-2024 by Sebastien Godard (sysstat <at> orange.fr)
*/
#ifndef _SA_H
#define _SA_H
#include <stdio.h>
#include <stdint.h>
#include "common.h"
#include "rd_stats.h"
#include "rd_sensors.h"
/*
***************************************************************************
* Activity identification values.
***************************************************************************
*/
/* Number of activities */
#define NR_ACT 43
/* The value below is used for sanity check */
#define MAX_NR_ACT 256
/* Number of functions used to count items */
#define NR_F_COUNT 14
/* Activities */
enum {
A_CPU = 1,
A_PCSW = 2,
A_IRQ = 3,
A_SWAP = 4,
A_PAGE = 5,
A_IO = 6,
A_MEMORY = 7,
A_KTABLES = 8,
A_QUEUE = 9,
A_SERIAL = 10,
A_DISK = 11,
A_NET_DEV = 12,
A_NET_EDEV = 13,
A_NET_NFS = 14,
A_NET_NFSD = 15,
A_NET_SOCK = 16,
A_NET_IP = 17,
A_NET_EIP = 18,
A_NET_ICMP = 19,
A_NET_EICMP = 20,
A_NET_TCP = 21,
A_NET_ETCP = 22,
A_NET_UDP = 23,
A_NET_SOCK6 = 24,
A_NET_IP6 = 25,
A_NET_EIP6 = 26,
A_NET_ICMP6 = 27,
A_NET_EICMP6 = 28,
A_NET_UDP6 = 29,
A_PWR_CPU = 30,
A_PWR_FAN = 31,
A_PWR_TEMP = 32,
A_PWR_IN = 33,
A_HUGE = 34,
A_PWR_FREQ = 35,
A_PWR_USB = 36,
A_FS = 37,
A_NET_FC = 38,
A_NET_SOFT = 39,
A_PSI_CPU = 40,
A_PSI_IO = 41,
A_PSI_MEM = 42,
A_PWR_BAT = 43
};
/* Macro used to flag an activity that should be collected */
#define COLLECT_ACTIVITY(m) act[get_activity_position(act, m, EXIT_IF_NOT_FOUND)]->options |= AO_COLLECTED
/* Macro used to flag an activity that should be selected */
#define SELECT_ACTIVITY(m) act[get_activity_position(act, m, EXIT_IF_NOT_FOUND)]->options |= AO_SELECTED
/*
***************************************************************************
* Flags.
***************************************************************************
*/
#define S_F_SINCE_BOOT 0x00000001
#define S_F_SA_ROTAT 0x00000002 /* Only used by sadc */
#define S_F_DEV_SID 0x00000002 /* Only used by sar/sadf */
#define S_F_PRETTY 0x00000004
#define S_F_FORCE_FILE 0x00000008
#define S_F_INTERVAL_SET 0x00000010
#define S_F_TRUE_TIME 0x00000020
#define S_F_LOCK_FILE 0x00000040
#define S_F_SEC_EPOCH 0x00000080
#define S_F_HDR_ONLY 0x00000100
#define S_F_FILE_LOCKED 0x00000200
#define S_F_SA_YYYYMMDD 0x00000400
#define S_F_HORIZONTALLY 0x00000800
#define S_F_COMMENT 0x00001000
#define S_F_PERSIST_NAME 0x00002000
#define S_F_LOCAL_TIME 0x00004000
#define S_F_PREFD_TIME_OUTPUT 0x00008000
#define S_F_SVG_SKIP 0x00010000
#define S_F_SVG_AUTOSCALE 0x00020000
#define S_F_SVG_ONE_DAY 0x00040000
#define S_F_SVG_SHOW_IDLE 0x00080000
#define S_F_UNIT 0x00100000
#define S_F_SVG_HEIGHT 0x00200000
#define S_F_SVG_PACKED 0x00400000
#define S_F_SVG_SHOW_INFO 0x00800000
#define S_F_MINMAX 0x01000000
#define S_F_ZERO_OMIT 0x02000000
#define S_F_SVG_SHOW_TOC 0x04000000
#define S_F_FDATASYNC 0x08000000
#define S_F_OPTION_A 0x10000000
#define S_F_OPTION_P 0x20000000
#define S_F_OPTION_I 0x40000000
#define S_F_DEBUG_MODE 0x80000000
#define WANT_SINCE_BOOT(m) (((m) & S_F_SINCE_BOOT) == S_F_SINCE_BOOT)
#define WANT_SA_ROTAT(m) (((m) & S_F_SA_ROTAT) == S_F_SA_ROTAT)
#define USE_STABLE_ID(m) (((m) & S_F_DEV_SID) == S_F_DEV_SID)
#define DISPLAY_PRETTY(m) (((m) & S_F_PRETTY) == S_F_PRETTY)
#define FORCE_FILE(m) (((m) & S_F_FORCE_FILE) == S_F_FORCE_FILE)
#define INTERVAL_SET(m) (((m) & S_F_INTERVAL_SET) == S_F_INTERVAL_SET)
#define PRINT_TRUE_TIME(m) (((m) & S_F_TRUE_TIME) == S_F_TRUE_TIME)
#define LOCK_FILE(m) (((m) & S_F_LOCK_FILE) == S_F_LOCK_FILE)
#define PRINT_SEC_EPOCH(m) (((m) & S_F_SEC_EPOCH) == S_F_SEC_EPOCH)
#define DISPLAY_HDR_ONLY(m) (((m) & S_F_HDR_ONLY) == S_F_HDR_ONLY)
#define FILE_LOCKED(m) (((m) & S_F_FILE_LOCKED) == S_F_FILE_LOCKED)
#define USE_SA_YYYYMMDD(m) (((m) & S_F_SA_YYYYMMDD) == S_F_SA_YYYYMMDD)
#define DISPLAY_HORIZONTALLY(m) (((m) & S_F_HORIZONTALLY) == S_F_HORIZONTALLY)
#define DISPLAY_COMMENT(m) (((m) & S_F_COMMENT) == S_F_COMMENT)
#define DISPLAY_PERSIST_NAME_S(m) (((m) & S_F_PERSIST_NAME) == S_F_PERSIST_NAME)
#define PRINT_LOCAL_TIME(m) (((m) & S_F_LOCAL_TIME) == S_F_LOCAL_TIME)
#define USE_PREFD_TIME_OUTPUT(m) (((m) & S_F_PREFD_TIME_OUTPUT) == S_F_PREFD_TIME_OUTPUT)
#define SKIP_EMPTY_VIEWS(m) (((m) & S_F_SVG_SKIP) == S_F_SVG_SKIP)
#define DISPLAY_ZERO_OMIT(m) (((m) & S_F_ZERO_OMIT) == S_F_ZERO_OMIT)
#define DISPLAY_DEBUG_MODE(m) (((m) & S_F_DEBUG_MODE) == S_F_DEBUG_MODE)
#define AUTOSCALE_ON(m) (((m) & S_F_SVG_AUTOSCALE) == S_F_SVG_AUTOSCALE)
#define DISPLAY_ONE_DAY(m) (((m) & S_F_SVG_ONE_DAY) == S_F_SVG_ONE_DAY)
#define DISPLAY_IDLE(m) (((m) & S_F_SVG_SHOW_IDLE) == S_F_SVG_SHOW_IDLE)
#define DISPLAY_INFO(m) (((m) & S_F_SVG_SHOW_INFO) == S_F_SVG_SHOW_INFO)
#define DISPLAY_UNIT(m) (((m) & S_F_UNIT) == S_F_UNIT)
#define SET_CANVAS_HEIGHT(m) (((m) & S_F_SVG_HEIGHT) == S_F_SVG_HEIGHT)
#define PACK_VIEWS(m) (((m) & S_F_SVG_PACKED) == S_F_SVG_PACKED)
#define DISPLAY_TOC(m) (((m) & S_F_SVG_SHOW_TOC) == S_F_SVG_SHOW_TOC)
#define FDATASYNC(m) (((m) & S_F_FDATASYNC) == S_F_FDATASYNC)
#define USE_OPTION_A(m) (((m) & S_F_OPTION_A) == S_F_OPTION_A)
#define USE_OPTION_P(m) (((m) & S_F_OPTION_P) == S_F_OPTION_P)
#define USE_OPTION_I(m) (((m) & S_F_OPTION_I) == S_F_OPTION_I)
#define DISPLAY_MINMAX(m) (((m) & S_F_MINMAX) == S_F_MINMAX)
#define AO_F_NULL 0x00000000
/* Output flags for options -r / -S */
#define AO_F_MEMORY 0x00000001
#define AO_F_SWAP 0x00000002
/* AO_F_MEM_ALL: See opt_flags in struct activity below */
#define AO_F_MEM_ALL (AO_F_MEMORY << 8)
#define DISPLAY_MEMORY(m) (((m) & AO_F_MEMORY) == AO_F_MEMORY)
#define DISPLAY_SWAP(m) (((m) & AO_F_SWAP) == AO_F_SWAP)
#define DISPLAY_MEM_ALL(m) (((m) & AO_F_MEM_ALL) == AO_F_MEM_ALL)
/* Output flags for option -u [ ALL ] */
#define AO_F_CPU_DEF 0x00000001
#define AO_F_CPU_ALL 0x00000002
#define DISPLAY_CPU_DEF(m) (((m) & AO_F_CPU_DEF) == AO_F_CPU_DEF)
#define DISPLAY_CPU_ALL(m) (((m) & AO_F_CPU_ALL) == AO_F_CPU_ALL)
/* Output flags for option -d */
#define AO_F_DISK_PART 0x00000001
#define COLLECT_PARTITIONS(m) (((m) & AO_F_DISK_PART) == AO_F_DISK_PART)
/* Output flags for option -F */
#define AO_F_FILESYSTEM 0x00000001
#define AO_F_MOUNT 0x00000002
#define DISPLAY_MOUNT(m) (((m) & AO_F_MOUNT) == AO_F_MOUNT)
/*
***************************************************************************
* Various keywords and constants.
***************************************************************************
*/
/* Keywords */
#define K_A_NULL "A_NULL"
#define K_CPU "CPU"
#define K_PSI_CPU "CPU"
#define K_DEV "DEV"
#define K_EDEV "EDEV"
#define K_EICMP "EICMP"
#define K_EICMP6 "EICMP6"
#define K_EIP "EIP"
#define K_EIP6 "EIP6"
#define K_ETCP "ETCP"
#define K_FAN "FAN"
#define K_FC "FC"
#define K_FREQ "FREQ"
#define K_ICMP "ICMP"
#define K_ICMP6 "ICMP6"
#define K_IN "IN"
#define K_PSI_IO "IO"
#define K_IP "IP"
#define K_IP6 "IP6"
#define K_LOAD "LOAD"
#define K_PSI_MEM "MEM"
#define K_MOUNT "MOUNT"
#define K_NFS "NFS"
#define K_NFSD "NFSD"
#define K_PSI "PSI"
#define K_SID "SID"
#define K_SOCK "SOCK"
#define K_SOCK6 "SOCK6"
#define K_SOFT "SOFT"
#define K_SUM "SUM"
#define K_TCP "TCP"
#define K_TEMP "TEMP"
#define K_UDP "UDP"
#define K_UDP6 "UDP6"
#define K_XALL "XALL"
#define K_INT "INT"
#define K_DISK "DISK"
#define K_XDISK "XDISK"
#define K_SNMP "SNMP"
#define K_IPV6 "IPV6"
#define K_POWER "POWER"
#define K_USB "USB"
#define K_BAT "BAT"
#define K_SKIP_EMPTY "skipempty"
#define K_AUTOSCALE "autoscale"
#define K_ONEDAY "oneday"
#define K_SHOWIDLE "showidle"
#define K_SHOWINFO "showinfo"
#define K_DEBUG "debug"
#define K_HEIGHT "height="
#define K_PACKED "packed"
#define K_SHOWTOC "showtoc"
#define K_CUSTOMCOL "customcol"
#define K_BWCOL "bwcol"
#define K_PCPARCHIVE "pcparchive="
#define K_HZ "hz="
/* Environment variables */
#define ENV_COLORS_PALETTE "S_COLORS_PALETTE"
/* Groups of activities */
#define G_DEFAULT 0x00
#define G_INT 0x01
#define G_DISK 0x02
#define G_SNMP 0x04
#define G_IPV6 0x08
#define G_POWER 0x10
#define G_XDISK 0x20
/* sadc program */
#define SADC "sadc"
/* Time must have the format HH:MM:SS with HH in 24-hour format */
#define DEF_TMSTART "08:00:00"
#define DEF_TMEND "18:00:00"
#define UTSNAME_LEN 65
#define TZNAME_LEN 8
#define HEADER_LINE_LEN 512
/*
* Define upper limit for various items.
* Made necessary because we have to check the number of
* items for each activity when we read a (possibly tainted)
* sa data file.
*/
#define MAX_NR_SERIAL_LINES 65536
#define MAX_NR_DISKS (65536 * 4096)
#define MAX_NR_IFACES 65536
#define MAX_NR_FANS 4096
#define MAX_NR_TEMP_SENSORS 4096
#define MAX_NR_IN_SENSORS 4096
#define MAX_NR_USB 65536
#define MAX_NR_FS (65536 * 4096)
#define MAX_NR_FCHOSTS 65536
#define MAX_NR_BATS 4096
/* NR_MAX is the upper limit used for unknown activities */
#define NR_MAX (65536 * 4096)
#define NR2_MAX 4096
/* Maximum number of args that can be passed to sadc */
#define MAX_ARGV_NR 32
/* Miscellaneous constants */
#define USE_SADC 0
#define USE_SA_FILE 1
#define NO_RESET 0
#define NO_RANGE 0
#define NON_FATAL 0
#define FATAL 1
#define H_MIN 0
#define H_MAX 1
#define C_SAR 0
#define C_SADF 1
#define ALL_ACTIVITIES ~0U
#define EXIT_IF_NOT_FOUND 1
#define RESUME_IF_NOT_FOUND 0
enum size_mode {
SOFT_SIZE = 0,
HARD_SIZE = 1
};
enum {
FIRST = 0,
SECOND = 1
};
enum sa_err_codes {
END_OF_DATA_UNEXPECTED = 1,
INCONSISTENT_INPUT_DATA = 2
};
enum on_eof {
UEOF_STOP = 0,
UEOF_CONT = 1
};
enum xml_action {
CLOSE_XML_MARKUP = 0,
OPEN_XML_MARKUP = 1
};
enum json_action {
CLOSE_JSON_MARKUP = 0,
OPEN_JSON_MARKUP = 1
};
enum count_mode {
COUNT_ACTIVITIES = 0,
COUNT_OUTPUTS = 1
};
/* Type for all functions reading statistics */
#define __read_funct_t void
/* Type for all functions displaying statistics */
#define __print_funct_t void
/*
* **************************************************************************
* Various structure definitions.
***************************************************************************
*/
enum time_mode {
NO_TIME = 0,
USE_HHMMSS_T = 1,
USE_EPOCH_T = 2
};
/*
* Structure for timestamps.
* @tm_time has the GMT or local broken time representation of @epoch_time.
* Exception is when the structure is used to save the timestamp given by the
* user on the command line with options -s/-e. In this case, it includes either
* the number of seconds since the epoch *or* the broken time entered by the user.
*/
struct tstamp_ext {
unsigned long long epoch_time;
struct tm tm_time;
enum time_mode use;
};
/* Structure for items in list */
struct sa_item {
char *item_name;
struct sa_item *next;
};
/*
***************************************************************************
* Output formats for sadf
***************************************************************************
*/
/* Number of output formats */
#define NR_FMT 9
/* Output formats */
enum {
F_SAR_OUTPUT = 0,
F_DB_OUTPUT = 1,
F_HEADER_OUTPUT = 2,
F_PPC_OUTPUT = 3,
F_XML_OUTPUT = 4,
F_JSON_OUTPUT = 5,
F_CONV_OUTPUT = 6,
F_SVG_OUTPUT = 7,
F_RAW_OUTPUT = 8,
F_PCP_OUTPUT = 9
};
/* Structure for SVG specific parameters */
struct svg_parm {
unsigned long long dt; /* Interval of time for current sample */
unsigned long long ust_time_ref; /* X axis start time in seconds since the epoch */
unsigned long long ust_time_end; /* X axis end time in seconds since the epoch */
unsigned long long ust_time_first; /* Time (in seconds since the epoch) for first sample */
int graph_no; /* Total number of views already displayed */
int restart; /* TRUE if we have just met a RESTART record */
int nr_act_dispd; /* Number of activities that will be displayed */
int mock; /* TRUE if no data shall be actually printed */
char hour; /* Hour, minute and second (expressed in the */
char minute; /* locale of the datafile creator) for first */
char second; /* sample */
struct file_header *file_hdr; /* Pointer on file header structure */
char my_tzname[TZNAME_LEN]; /* Current timezone */
};
/* Structure used when displaying SVG header */
struct svg_hdr_parm {
int graph_nr; /* Number of rows of views to display or canvas height entered on the command line */
int views_per_row; /* Maximum number of views on a single row */
int nr_act_dispd; /* Number of activities that will be displayed */
};
/*
***************************************************************************
* System activity data files
*
* The rule is: "strict writing, read any", meaning that sar/sadc can
* only append data to a datafile whose format is strictly the same as that
* of current version (checking FORMAT_MAGIC is not enough), but sar/sadf
* can read data from different versions, providing that FORMAT_MAGIC value
* has not changed (note that we are talking here of data read from a file,
* not data that sar reads from sadc, in which case the "strict" rule applies).
*
* Format of system activity data files:
* __
* |
* | file_magic structure
* |
* |--
* |
* | file_header structure
* |
* |-- --|
* | |
* | file_activity structure | x file_header:sa_act_nr
* | |
* |--------- --|
* |
* | extra_desc structure (exists only if file_header:extra_next != 0)
* |
* |-- --|
* | |
* | unknown extra structure(s) | x extra_desc:extra_nr
* | |
* |-- --|
* |
* | (extra_desc structure (exists only if previous extra_desc:extra_next != 0))
* |
* |--
* |
* | (...)
* |
* |--------- --|
* | |
* | record_header structure |
* | |
* |--------- --|
* |
* | extra_desc structure (exists only if record_header:extra_next != 0)
* |
* |-- --|
* | |
* | unknown extra structure(s) | x extra_desc:extra_nr
* | |
* |-- --|
* |
* | (extra_desc structure (exists only if previous extra_desc:extra_next != 0))
* |
* |--
* |
* | (...)
* |
* |--------- --|
* |(__nr_t) |
* |-- |
* | |
* | Statistics structure(s) | x <count>
* | |
* |-- |
* |(__nr_t) |
* |-- |
* | |
* | Statistics structure(s)... |
* | |
* |-- --|
*
* Note: For activities with varying number of items, a __nr_t value, giving
* the number of items, arrives before the statistics structures so that
* we know how many of them have to be read.
* NB: This value exists for all the activities even if they share the same
* count function (e.g. A_NET_DEV and A_NET_EDEV). Indeed, statistics are not
* read atomically and the number of items (e.g. network interfaces) may have
* varied in between.
*
* If the record header's type is R_COMMENT then we find only a comment
* following the record_header structure.
*
* If the record_header's type is R_RESTART then we find only the number of CPU
* (of type __nr_t) of the machine following the record_header structure.
* This number is 1 for 1 CPU and not an SMP kernel (CPU "all"),
* 2 for 1 CPU and SMP kernel (CPU "all" and CPU 0), etc.
* Of course we display the real number of CPU (e.g. "1" for 1 CPU and SMP
* kernel) with the LINUX RESTART message.
*
* If the record_header's type is R_EXTRA* then we find only a list of extra
* structures following the record_header structure but no statistics ones.
* Note that extra structures may exist for all record_header types
* (R_STATS, R_COMMENT, R_RESTART...). For R_COMMENT and R_RESTART records,
* the extra structures will be found after the comment or the number of CPU.
***************************************************************************
*/
/*
* Sysstat magic number. Should never be modified.
* Indicate that the file was created by sysstat.
*/
#define SYSSTAT_MAGIC 0xd596
#define SYSSTAT_MAGIC_SWAPPED (((SYSSTAT_MAGIC << 8) | (SYSSTAT_MAGIC >> 8)) & 0xffff)
/*
* Datafile format magic number.
* Modified to indicate that the format of the file is
* no longer compatible with that of previous sysstat versions.
*/
#define FORMAT_MAGIC 0x2175
#define FORMAT_MAGIC_SWAPPED (((FORMAT_MAGIC << 8) | (FORMAT_MAGIC >> 8)) & 0xffff)
/* Previous datafile format magic numbers used by older sysstat versions */
#define FORMAT_MAGIC_2171 0x2171
#define FORMAT_MAGIC_2171_SWAPPED (((FORMAT_MAGIC_2171 << 8) | (FORMAT_MAGIC_2171 >> 8)) & 0xffff)
#define FORMAT_MAGIC_2173 0x2173
#define FORMAT_MAGIC_2173_SWAPPED (((FORMAT_MAGIC_2173 << 8) | (FORMAT_MAGIC_2173 >> 8)) & 0xffff)
/* Padding in file_magic structure. See below. */
#define FILE_MAGIC_PADDING 48
/* Structure for file magic header data */
struct file_magic {
/*
* This field identifies the file as a file created by sysstat.
*/
unsigned short sysstat_magic;
/*
* The value of this field varies whenever datafile format changes.
*/
unsigned short format_magic;
/*
* Sysstat version used to create the file.
*/
unsigned char sysstat_version;
unsigned char sysstat_patchlevel;
unsigned char sysstat_sublevel;
unsigned char sysstat_extraversion;
#define FILE_MAGIC_ULL_NR 0 /* Nr of unsigned long long below */
#define FILE_MAGIC_UL_NR 0 /* Nr of unsigned long below */
#define FILE_MAGIC_U_NR 5 /* Nr of [unsigned] int below */
/*
* Size of file's header (size of file_header structure used by file).
*/
unsigned int header_size;
/*
* Set to non zero if data file has been converted with "sadf -c" from
* an old format (version x.y.z) to a newest format (version X.Y.Z).
* In this case, the value is: Y*256 + Z + 1.
* The FORMAT_MAGIC value of the file can be used to determine X.
*/
unsigned int upgraded;
/*
* Description of the file_header structure
* (nr of "long long", nr of "long" and nr of "int").
*/
unsigned int hdr_types_nr[3];
/*
* Padding. Reserved for future use while avoiding a format change.
* sysstat always reads a number of bytes which is that expected for
* current sysstat version (FILE_MAGIC_SIZE). We cannot guess if we
* are going to read a file from current, an older or a newer version.
*/
unsigned char pad[FILE_MAGIC_PADDING];
};
#define FILE_MAGIC_SIZE (sizeof(struct file_magic))
/* Header structure for system activity data file */
struct file_header {
/*
* Timestamp in seconds since the epoch.
*/
unsigned long long sa_ust_time;
/*
* Number of jiffies per second.
*/
unsigned long sa_hz __attribute__ ((aligned (8)));
/*
* Number of [online or offline] CPU (1 .. CPU_NR + 1)
* when the datafile has been created.
* When reading a datafile, this value is updated (in memory)
* whenever a RESTART record is found.
* When writing or appending data to a file, this field is updated
* neither in file nor in memory.
*/
unsigned int sa_cpu_nr __attribute__ ((aligned (8)));
/*
* Number of activities saved in file.
*/
unsigned int sa_act_nr;
/*
* Current year.
*/
int sa_year;
/*
* Description of the file_activity and record_header structures
* (nr of "long long", nr of "long" and nr of "int").
*/
unsigned int act_types_nr[3];
unsigned int rec_types_nr[3];
/*
* Size of file_activity and record_header structures used by file.
*/
unsigned int act_size;
unsigned int rec_size;
/*
* TRUE if an extra_desc structure exists.
*/
unsigned int extra_next;
/*
* Current day and month.
* No need to save DST (Daylight Saving Time) flag, since it is not taken
* into account by the strftime() function used to print the timestamp.
*/
unsigned char sa_day;
unsigned char sa_month;
/*
* Size of a long integer. Useful to know the architecture on which
* the datafile was created.
*/
char sa_sizeof_long;
/*
* Operating system name.
*/
char sa_sysname[UTSNAME_LEN];
/*
* Machine hostname.
*/
char sa_nodename[UTSNAME_LEN];
/*
* Operating system release number.
*/
char sa_release[UTSNAME_LEN];
/*
* Machine architecture.
*/
char sa_machine[UTSNAME_LEN];
/*
* Timezone value.
*/
char sa_tzname[TZNAME_LEN];
};
#define FILE_HEADER_SIZE (sizeof(struct file_header))
#define FILE_HEADER_ULL_NR 1 /* Nr of unsigned long long in file_header structure */
#define FILE_HEADER_UL_NR 1 /* Nr of unsigned long in file_header structure */
#define FILE_HEADER_U_NR 12 /* Nr of [unsigned] int in file_header structure */
/* The values below are used for sanity check */
#define MIN_FILE_HEADER_SIZE 0
#define MAX_FILE_HEADER_SIZE 8192
/*
* Base magical number for activities.
*/
#define ACTIVITY_MAGIC_BASE 0x8a
/* List of activities saved in file */
struct file_activity {
/*
* Identification value of activity.
*/
unsigned int id;
/*
* Activity magical number.
*/
unsigned int magic;
/*
* Number of items for this activity
* when the data file has been created.
*/
__nr_t nr;
/*
* Number of sub-items for this activity.
*/
__nr_t nr2;
/*
* Set to TRUE if statistics are preceded by
* a value giving the number of structures to read.
*/
int has_nr;
/*
* Size of an item structure.
*/
int size;
/*
* Description of the structure containing statistics for the
* given activity (nr of "long long", nr of "long" and nr of "int").
*/
unsigned int types_nr[3];
};
#define FILE_ACTIVITY_SIZE (sizeof(struct file_activity))
#define MAX_FILE_ACTIVITY_SIZE 1024 /* Used for sanity check */
#define FILE_ACTIVITY_ULL_NR 0 /* Nr of unsigned long long in file_activity structure */
#define FILE_ACTIVITY_UL_NR 0 /* Nr of unsigned long in file_activity structure */
#define FILE_ACTIVITY_U_NR 9 /* Nr of [unsigned] int in file_activity structure */
#define MAX_ITEM_STRUCT_SIZE 1024 /* Used for sanity check */
/*
* Description of an extra structure.
* The composition of this structure should not change in time.
*/
struct extra_desc {
/*
* Number of extra structures to read.
*/
unsigned int extra_nr;
/*
* Size of an extra structure.
*/
unsigned int extra_size;
/*
* TRUE if another extra_desc structure exists after
* all the extra structures.
*/
unsigned int extra_next;
/*
* Description of an extra structure
* (nr of "long long", nr of "long" and nr of "int").
*/
unsigned int extra_types_nr[3];
};
#define EXTRA_DESC_SIZE (sizeof(struct extra_desc))
#define EXTRA_DESC_ULL_NR 0 /* Nr of unsigned long long in extra_desc structure */
#define EXTRA_DESC_UL_NR 0 /* Nr of unsigned long in extra_desc structure */
#define EXTRA_DESC_U_NR 6 /* Nr of [unsigned] int in extra_desc structure */
#define MAX_EXTRA_NR 8192
#define MAX_EXTRA_SIZE 1024
/* Record type */
enum {
/*
* R_STATS means that this is a record of statistics.
*/
R_STATS = 1,
/*
* R_RESTART means that this is a special record containing
* a LINUX RESTART message.
*/
R_RESTART = 2,
/*
* R_LAST_STATS warns sar that this is the last record to be written
* to file before a file rotation, and that the next data to come will
* be a header file.
* Such a record is tagged R_STATS anyway before being written to file.
*/
R_LAST_STATS = 3,
/*
* R_COMMENT means that this is a special record containing
* a comment.
*/
R_COMMENT = 4,
/*
* R_EXTRA* records means that extra structures are following current
* record_header structure, but no statistics structures.
*/
R_EXTRA_MIN = 5,
R_EXTRA_MAX = 15
};
/* Maximum length of a comment */
#define MAX_COMMENT_LEN 64
/* Header structure for every record */
struct record_header {
/*
* Machine uptime in 1/100th of a second.
*/
unsigned long long uptime_cs;
/*
* Timestamp (number of seconds since the epoch).
*/
unsigned long long ust_time;
/*
* TRUE if an extra_desc structure exists.
*/
unsigned int extra_next;
/*
* Record type: R_STATS, R_RESTART,...
*/
unsigned char record_type;
/*
* Timestamp: Hour (0-23), minute (0-59) and second (0-60).
* Used to determine TRUE time.
* Hour value depends in fact on timezone (TZ variable) value.
*/
unsigned char hour;
unsigned char minute;
unsigned char second;
};
#define RECORD_HEADER_SIZE (sizeof(struct record_header))
#define MAX_RECORD_HEADER_SIZE 512 /* Used for sanity check */
#define RECORD_HEADER_ULL_NR 2 /* Nr of unsigned long long in record_header structure */
#define RECORD_HEADER_UL_NR 0 /* Nr of unsigned long in record_header structure */
#define RECORD_HEADER_U_NR 1 /* Nr of unsigned int in record_header structure */
/*
***************************************************************************
* Generic description of an activity.
***************************************************************************
*/
/* Activity options */
#define AO_NULL 0x00
/*
* Indicate that corresponding activity should be collected by sadc.
*/
#define AO_COLLECTED 0x01
/*
* Indicate that corresponding activity should be displayed by sar.
*/
#define AO_SELECTED 0x02
/*
* Indicate that corresponding activity has items that need to be counted.
* This means that its @f_count_index values is >= 0.
* (We use AO_COUNTED instead of @f_count_index because @f_count_index
* is available (initialized) only for sadc).
*/
#define AO_COUNTED 0x04
/*
* Indicate that activity's metrics have persistent values when devices
* are registered again (this means that when the device is registered again,
* the metrics pick the values they had when they had been unregistered).
* Exclusively used for CPU related statistics at the present time
* (e.g. A_CPU and A_NET_SOFT).
*/
#define AO_PERSISTENT 0x08
/*
* This flag should be set for every activity closing a markup used
* by several activities. Used by sadf f_xml_print() functions to
* display XML output, and also by f_json_print() functions to display JSON output.
*/
#define AO_CLOSE_MARKUP 0x10
/*
* Indicate that corresponding activity has multiple different
* output formats. This is the case for example for memory activity
* with options -r and -R.
* PS: Such an activity should appear in the list of activities that
* sar -A is supposed to display.
*/
#define AO_MULTIPLE_OUTPUTS 0x20
/*
* Indicate that one (SVG) graph will be displayed for each
* distinct item for this activity (sadf -g).
*/
#define AO_GRAPH_PER_ITEM 0x40
/*
* Indicate that this activity may have sub-items.
*/
#define AO_MATRIX 0x80
/*
* Indicate that a list of devices has been entered on the command
* line for this activity (see options --dev=, --iface=, ...)
*/
#define AO_LIST_ON_CMDLINE 0x100
/*
* Indicate that the number of items for this activity should always
* be counted, even if the activity is not collected.
*/
#define AO_ALWAYS_COUNTED 0x200
/*
* Indicate that corresponding activity should be collected only
* if a test has been successfully passed before.
* The test corresponds to the count() function (see @f_count_index).
* This is intended for activities with a fixed number of items but
* whose {/proc|/sys} files are not necessarily available, e.g. depending
* on the kernel version used. Unlike activities with AO_COUNTED flag,
* those having AO_DETECTED flag won't have a @has_nr number preceding
* their statistics structures in datafile.
*/
#define AO_DETECTED 0x400
#define IS_COLLECTED(m) (((m) & AO_COLLECTED) == AO_COLLECTED)
#define IS_SELECTED(m) (((m) & AO_SELECTED) == AO_SELECTED)
#define HAS_COUNT_FUNCTION(m) (((m) & AO_COUNTED) == AO_COUNTED)
#define HAS_DETECT_FUNCTION(m) (((m) & AO_DETECTED) == AO_DETECTED)
#define HAS_PERSISTENT_VALUES(m) (((m) & AO_PERSISTENT) == AO_PERSISTENT)
#define CLOSE_MARKUP(m) (((m) & AO_CLOSE_MARKUP) == AO_CLOSE_MARKUP)
#define HAS_MULTIPLE_OUTPUTS(m) (((m) & AO_MULTIPLE_OUTPUTS) == AO_MULTIPLE_OUTPUTS)
#define ONE_GRAPH_PER_ITEM(m) (((m) & AO_GRAPH_PER_ITEM) == AO_GRAPH_PER_ITEM)
#define IS_MATRIX(m) (((m) & AO_MATRIX) == AO_MATRIX)
#define HAS_LIST_ON_CMDLINE(m) (((m) & AO_LIST_ON_CMDLINE) == AO_LIST_ON_CMDLINE)
#define ALWAYS_COUNT_ITEMS(m) (((m) & AO_ALWAYS_COUNTED) == AO_ALWAYS_COUNTED)
#define _buf0 buf[0]
#define _nr0 nr[0]
/* Structure used to define a bitmap needed by an activity */
struct act_bitmap {
/*
* Bitmap for activities that need one. Remember to allocate it
* before use!
*/
unsigned char *b_array;
/*
* Size of the bitmap in bits. In fact, bitmap is sized to b_size + 1
* to take into account CPU "all"
*/
int b_size;
};
/*
* Structure used to define an activity.
* Note: This structure can be modified without changing the format of data files.
*/
struct activity {
/*
* This variable contains the identification value (A_...) for this activity.
*/
unsigned int id;
/*
* Activity options (AO_...)
*/
unsigned int options;
/*
* Activity magical number. This number changes when activity format in file
* is no longer compatible with the format of that same activity from
* previous versions.
*/
unsigned int magic;
/*
* An activity belongs to a group (and only one).
* Groups are those selected with option -S of sadc.
*/
unsigned int group;
/*
* Index in f_count[] array to determine function used to count
* the number of items (serial lines, network interfaces, etc.) for
* activities with AO_COUNTED flag. Determine @nr value.
* Such a function should _always_ return a value greater than
* or equal to 0.
*
* A value of -1 indicates that the number of items
* is a constant (and @nr_ini is set to this value).
*
* This function may be called even if corresponding activity has not
* been selected if flag AO_ALWAYS_COUNTED is set, to make sure that
* all items have been calculated (e.g. #CPU)
*
* The count() function may also be used to know if an activity (with
* AO_DETECTED flag) can actually be collected based on the presence of
* {/proc|/sys} files.
*/
int f_count_index;
/*
* Index in f_count[] array to determine function used to count the
* number of sub-items -> @nr2
* Such a function should _always_ return a value greater than
* or equal to 0.
*
* A value of -1 indicates that the number of items is a constant
* (and @nr2 is set to this value).
*/
int f_count2_index;
/*
* This function reads the relevant file and fill the buffer
* with statistics corresponding to given activity.
*/