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/*
* sar and sadf common routines.
* (C) 1999-2016 by Sebastien GODARD (sysstat <at> orange.fr)
*
***************************************************************************
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 2 of the License, or (at your *
* option) any later version. *
* *
* This program is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without the implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
* for more details. *
* *
* You should have received a copy of the GNU General Public License along *
* with this program; if not, write to the Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA *
***************************************************************************
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <errno.h>
#include <unistd.h> /* For STDOUT_FILENO, among others */
#include <dirent.h>
#include <fcntl.h>
#include <libgen.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
#include "version.h"
#include "sa.h"
#include "common.h"
#include "ioconf.h"
#include "rd_stats.h"
#ifdef USE_NLS
#include <locale.h>
#include <libintl.h>
#define _(string) gettext(string)
#else
#define _(string) (string)
#endif
int default_file_used = FALSE;
extern struct act_bitmap cpu_bitmap;
/*
***************************************************************************
* Init a bitmap (CPU, IRQ, etc.).
*
* IN:
* @value Value used to init bitmap.
* @sz Size of the bitmap in bytes.
*
* OUT:
* @bitmap Bitmap initialized.
***************************************************************************
*/
void set_bitmap(unsigned char bitmap[], unsigned char value, unsigned int sz)
{
register int i;
for (i = 0; i < sz; i++) {
bitmap[i] = value;
}
}
/*
***************************************************************************
* Allocate structures.
*
* IN:
* @act Array of activities.
***************************************************************************
*/
void allocate_structures(struct activity *act[])
{
int i, j;
for (i = 0; i < NR_ACT; i++) {
if (act[i]->nr > 0) {
for (j = 0; j < 3; j++) {
SREALLOC(act[i]->buf[j], void,
(size_t) act[i]->msize * (size_t) act[i]->nr * (size_t) act[i]->nr2);
}
}
}
}
/*
***************************************************************************
* Free structures.
*
* IN:
* @act Array of activities.
***************************************************************************
*/
void free_structures(struct activity *act[])
{
int i, j;
for (i = 0; i < NR_ACT; i++) {
if (act[i]->nr > 0) {
for (j = 0; j < 3; j++) {
if (act[i]->buf[j]) {
free(act[i]->buf[j]);
act[i]->buf[j] = NULL;
}
}
}
}
}
/*
***************************************************************************
* Try to get device real name from sysfs tree.
*
* IN:
* @major Major number of the device.
* @minor Minor number of the device.
*
* RETURNS:
* The name of the device, which may be the real name (as it appears in /dev)
* or NULL.
***************************************************************************
*/
char *get_devname_from_sysfs(unsigned int major, unsigned int minor)
{
static char link[32], target[PATH_MAX];
char *devname;
ssize_t r;
snprintf(link, 32, "%s/%u:%u", SYSFS_DEV_BLOCK, major, minor);
/* Get full path to device knowing its major and minor numbers */
r = readlink(link, target, PATH_MAX);
if (r <= 0 || r >= PATH_MAX) {
return (NULL);
}
target[r] = '\0';
/* Get device name */
devname = basename(target);
if (!devname || strnlen(devname, FILENAME_MAX) == 0) {
return (NULL);
}
return (devname);
}
/*
***************************************************************************
* Get device real name if possible.
* Warning: This routine may return a bad name on 2.4 kernels where
* disk activities are read from /proc/stat.
*
* IN:
* @major Major number of the device.
* @minor Minor number of the device.
* @pretty TRUE if the real name of the device (as it appears in /dev)
* should be returned.
*
* RETURNS:
* The name of the device, which may be the real name (as it appears in /dev)
* or a string with the following format devM-n.
***************************************************************************
*/
char *get_devname(unsigned int major, unsigned int minor, int pretty)
{
static char buf[32];
char *name;
snprintf(buf, 32, "dev%u-%u", major, minor);
if (!pretty)
return (buf);
name = get_devname_from_sysfs(major, minor);
if (name != NULL)
return (name);
name = ioc_name(major, minor);
if ((name != NULL) && strcmp(name, K_NODEV))
return (name);
return (buf);
}
/*
***************************************************************************
* Check if we are close enough to desired interval.
*
* IN:
* @uptime_ref Uptime used as reference. This is the system uptime for the
* first sample statistics, or the first system uptime after a
* LINUX RESTART.
* @uptime Current system uptime.
* @reset TRUE if @last_uptime should be reset with @uptime_ref.
* @interval Interval of time.
*
* RETURNS:
* 1 if we are actually close enough to desired interval, 0 otherwise.
***************************************************************************
*/
int next_slice(unsigned long long uptime_ref, unsigned long long uptime,
int reset, long interval)
{
unsigned long file_interval, entry;
static unsigned long long last_uptime = 0;
int min, max, pt1, pt2;
double f;
/* uptime is expressed in jiffies (basis of 1 processor) */
if (!last_uptime || reset) {
last_uptime = uptime_ref;
}
/* Interval cannot be greater than 0xffffffff here */
f = ((double) ((uptime - last_uptime) & 0xffffffff)) / HZ;
file_interval = (unsigned long) f;
if ((f * 10) - (file_interval * 10) >= 5) {
file_interval++; /* Rounding to correct value */
}
last_uptime = uptime;
/*
* A few notes about the "algorithm" used here to display selected entries
* from the system activity file (option -f with -i flag):
* Let 'Iu' be the interval value given by the user on the command line,
* 'If' the interval between current and previous line in the system
* activity file,
* and 'En' the nth entry (identified by its time stamp) of the file.
* We choose In = [ En - If/2, En + If/2 [ if If is even,
* or In = [ En - If/2, En + If/2 ] if not.
* En will be displayed if
* (Pn * Iu) or (P'n * Iu) belongs to In
* with Pn = En / Iu and P'n = En / Iu + 1
*/
f = ((double) ((uptime - uptime_ref) & 0xffffffff)) / HZ;
entry = (unsigned long) f;
if ((f * 10) - (entry * 10) >= 5) {
entry++;
}
min = entry - (file_interval / 2);
max = entry + (file_interval / 2) + (file_interval & 0x1);
pt1 = (entry / interval) * interval;
pt2 = ((entry / interval) + 1) * interval;
return (((pt1 >= min) && (pt1 < max)) || ((pt2 >= min) && (pt2 < max)));
}
/*
***************************************************************************
* Use time stamp to fill tstamp structure.
*
* IN:
* @timestamp Timestamp to decode (format: HH:MM:SS).
*
* OUT:
* @tse Structure containing the decoded timestamp.
*
* RETURNS:
* 0 if the timestamp has been successfully decoded, 1 otherwise.
***************************************************************************
*/
int decode_timestamp(char timestamp[], struct tstamp *tse)
{
timestamp[2] = timestamp[5] = '\0';
tse->tm_sec = atoi(×tamp[6]);
tse->tm_min = atoi(×tamp[3]);
tse->tm_hour = atoi(timestamp);
if ((tse->tm_sec < 0) || (tse->tm_sec > 59) ||
(tse->tm_min < 0) || (tse->tm_min > 59) ||
(tse->tm_hour < 0) || (tse->tm_hour > 23))
return 1;
tse->use = TRUE;
return 0;
}
/*
***************************************************************************
* Compare two timestamps.
*
* IN:
* @rectime Date and time for current sample.
* @tse Timestamp used as reference.
*
* RETURNS:
* A positive value if @rectime is greater than @tse,
* a negative one otherwise.
***************************************************************************
*/
int datecmp(struct tm *rectime, struct tstamp *tse)
{
if (rectime->tm_hour == tse->tm_hour) {
if (rectime->tm_min == tse->tm_min)
return (rectime->tm_sec - tse->tm_sec);
else
return (rectime->tm_min - tse->tm_min);
}
else
return (rectime->tm_hour - tse->tm_hour);
}
/*
***************************************************************************
* Parse a timestamp entered on the command line (hh:mm[:ss]) and decode it.
*
* IN:
* @argv Arguments list.
* @opt Index in the arguments list.
* @def_timestamp Default timestamp to use.
*
* OUT:
* @tse Structure containing the decoded timestamp.
*
* RETURNS:
* 0 if the timestamp has been successfully decoded, 1 otherwise.
***************************************************************************
*/
int parse_timestamp(char *argv[], int *opt, struct tstamp *tse,
const char *def_timestamp)
{
char timestamp[9];
if (argv[++(*opt)]) {
switch (strlen(argv[*opt])) {
case 5:
strncpy(timestamp, argv[(*opt)++], 5);
timestamp[5] = '\0';
strcat(timestamp,":00");
break;
case 8:
strncpy(timestamp, argv[(*opt)++], 8);
break;
default:
strncpy(timestamp, def_timestamp, 8);
break;
}
} else {
strncpy(timestamp, def_timestamp, 8);
}
timestamp[8] = '\0';
return decode_timestamp(timestamp, tse);
}
/*
***************************************************************************
* Look for the most recent of saDD and saYYYYMMDD to decide which one to
* use. If neither exists then use saDD by default.
*
* IN:
* @sa_dir Directory where standard daily data files are saved.
* @rectime Structure containing the current date.
*
* OUT:
* @sa_name 0 to use saDD data files,
* 1 to use saYYYYMMDD data files.
***************************************************************************
*/
void guess_sa_name(char *sa_dir, struct tm *rectime, int *sa_name)
{
char filename[MAX_FILE_LEN];
struct stat sb;
time_t sa_mtime;
/* Use saDD by default */
*sa_name = 0;
/* Look for saYYYYMMDD */
snprintf(filename, MAX_FILE_LEN,
"%s/sa%04d%02d%02d", sa_dir,
rectime->tm_year + 1900,
rectime->tm_mon + 1,
rectime->tm_mday);
filename[MAX_FILE_LEN - 1] = '\0';
if (stat(filename, &sb) < 0)
/* Cannot find or access saYYYYMMDD, so use saDD */
return;
sa_mtime = sb.st_mtime;
/* Look for saDD */
snprintf(filename, MAX_FILE_LEN,
"%s/sa%02d", sa_dir,
rectime->tm_mday);
filename[MAX_FILE_LEN - 1] = '\0';
if (stat(filename, &sb) < 0) {
/* Cannot find or access saDD, so use saYYYYMMDD */
*sa_name = 1;
return;
}
if (sa_mtime > sb.st_mtime) {
/* saYYYYMMDD is more recent than saDD, so use it */
*sa_name = 1;
}
}
/*
***************************************************************************
* Set current daily data file name.
*
* IN:
* @datafile If not an empty string then this is the alternate directory
* location where daily data files will be saved.
* @d_off Day offset (number of days to go back in the past).
* @sa_name 0 for saDD data files,
* 1 for saYYYYMMDD data files,
* -1 if unknown. In this case, will look for the most recent
* of saDD and saYYYYMMDD and use it.
*
* OUT:
* @datafile Name of daily data file.
***************************************************************************
*/
void set_default_file(char *datafile, int d_off, int sa_name)
{
char sa_dir[MAX_FILE_LEN];
struct tm rectime = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL};
/* Set directory where daily data files will be saved */
if (datafile[0]) {
strncpy(sa_dir, datafile, MAX_FILE_LEN);
}
else {
strncpy(sa_dir, SA_DIR, MAX_FILE_LEN);
}
sa_dir[MAX_FILE_LEN - 1] = '\0';
get_time(&rectime, d_off);
if (sa_name < 0) {
/*
* Look for the most recent of saDD and saYYYYMMDD
* and use it. If neither exists then use saDD.
* sa_name is set accordingly.
*/
guess_sa_name(sa_dir, &rectime, &sa_name);
}
if (sa_name) {
/* Using saYYYYMMDD data files */
snprintf(datafile, MAX_FILE_LEN,
"%s/sa%04d%02d%02d", sa_dir,
rectime.tm_year + 1900,
rectime.tm_mon + 1,
rectime.tm_mday);
}
else {
/* Using saDD data files */
snprintf(datafile, MAX_FILE_LEN,
"%s/sa%02d", sa_dir,
rectime.tm_mday);
}
datafile[MAX_FILE_LEN - 1] = '\0';
default_file_used = TRUE;
}
/*
***************************************************************************
* Check data file type. If it is a directory then this is the alternate
* location where daily data files will be saved.
*
* IN:
* @datafile Name of the daily data file. May be a directory.
* @d_off Day offset (number of days to go back in the past).
* @sa_name 0 for saDD data files,
* 1 for saYYYYMMDD data files,
* -1 if unknown. In this case, will look for the most recent
* of saDD and saYYYYMMDD and use it.
*
*
* OUT:
* @datafile Name of the daily data file. This is now a plain file, not
* a directory.
*
* RETURNS:
* 1 if @datafile was a directory, and 0 otherwise.
***************************************************************************
*/
int check_alt_sa_dir(char *datafile, int d_off, int sa_name)
{
struct stat sb;
if (stat(datafile, &sb) == 0) {
if (S_ISDIR(sb.st_mode)) {
/*
* This is a directory: So append
* the default file name to it.
*/
set_default_file(datafile, d_off, sa_name);
return 1;
}
}
return 0;
}
/*
***************************************************************************
* Set interval value.
*
* IN:
* @record_hdr_curr Record with current sample statistics.
* @record_hdr_prev Record with previous sample statistics.
* @nr_proc Number of CPU, including CPU "all".
*
* OUT:
* @itv Interval in jiffies.
* @g_itv Interval in jiffies multiplied by the # of proc.
***************************************************************************
*/
void get_itv_value(struct record_header *record_hdr_curr,
struct record_header *record_hdr_prev,
unsigned int nr_proc,
unsigned long long *itv, unsigned long long *g_itv)
{
/* Interval value in jiffies */
*g_itv = get_interval(record_hdr_prev->uptime,
record_hdr_curr->uptime);
if (nr_proc > 2) {
*itv = get_interval(record_hdr_prev->uptime0,
record_hdr_curr->uptime0);
}
else {
*itv = *g_itv;
}
}
/*
***************************************************************************
* Fill the rectime structure with the file's creation date, based on file's
* time data saved in file header.
* The resulting timestamp is expressed in the locale of the file creator or
* in the user's own locale, depending on whether option -t has been used
* or not.
*
* IN:
* @flags Flags for common options and system state.
* @file_hdr System activity file standard header.
*
* OUT:
* @rectime Date (and possibly time) from file header. Only the date,
* not the time, should be used by the caller.
***************************************************************************
*/
void get_file_timestamp_struct(unsigned int flags, struct tm *rectime,
struct file_header *file_hdr)
{
struct tm *loc_t;
if (PRINT_TRUE_TIME(flags)) {
/* Get local time. This is just to fill fields with a default value. */
get_time(rectime, 0);
rectime->tm_mday = file_hdr->sa_day;
rectime->tm_mon = file_hdr->sa_month;
rectime->tm_year = file_hdr->sa_year;
/*
* Call mktime() to set DST (Daylight Saving Time) flag.
* Has anyone a better way to do it?
*/
rectime->tm_hour = rectime->tm_min = rectime->tm_sec = 0;
mktime(rectime);
}
else {
if ((loc_t = localtime((const time_t *) &file_hdr->sa_ust_time)) != NULL) {
*rectime = *loc_t;
}
}
}
/*
***************************************************************************
* Print report header.
*
* IN:
* @flags Flags for common options and system state.
* @file_hdr System activity file standard header.
* @cpu_nr Number of CPU (value in [1, NR_CPUS + 1]).
* 1 means that there is only one proc and non SMP kernel.
* 2 means one proc and SMP kernel.
* Etc.
*
* OUT:
* @rectime Date and time from file header.
***************************************************************************
*/
void print_report_hdr(unsigned int flags, struct tm *rectime,
struct file_header *file_hdr, int cpu_nr)
{
/* Get date of file creation */
get_file_timestamp_struct(flags, rectime, file_hdr);
/* Display the header */
print_gal_header(rectime, file_hdr->sa_sysname, file_hdr->sa_release,
file_hdr->sa_nodename, file_hdr->sa_machine,
cpu_nr > 1 ? cpu_nr - 1 : 1);
}
/*
***************************************************************************
* Network interfaces may now be registered (and unregistered) dynamically.
* This is what we try to guess here.
*
* IN:
* @a Activity structure with statistics.
* @curr Index in array for current sample statistics.
* @ref Index in array for sample statistics used as reference.
* @pos Index on current network interface.
*
* RETURNS:
* Position of current network interface in array of sample statistics used
* as reference, or -1 if it is a new interface (it was not present in array
* of stats used as reference).
*
* Note: A newly registered interface, if it is supernumerary, may make the
* last interface in the array going out of the list. Yet an interface going
* out of the list still exists in the /proc/net/dev file. Should it go back
* in the list (e.g. if some other interfaces have been unregistered) then
* its counters will jump as if starting from zero.
***************************************************************************
*/
int check_net_dev_reg(struct activity *a, int curr, int ref, int pos)
{
struct stats_net_dev *sndc, *sndp;
int index = 0;
sndc = (struct stats_net_dev *) ((char *) a->buf[curr] + pos * a->msize);
while (index < a->nr) {
sndp = (struct stats_net_dev *) ((char *) a->buf[ref] + index * a->msize);
if (!strcmp(sndc->interface, sndp->interface)) {
/*
* Network interface found.
* If a counter has decreased, then we may assume that the
* corresponding interface was unregistered, then registered again.
*/
if ((sndc->rx_packets < sndp->rx_packets) ||
(sndc->tx_packets < sndp->tx_packets) ||
(sndc->rx_bytes < sndp->rx_bytes) ||
(sndc->tx_bytes < sndp->tx_bytes) ||
(sndc->rx_compressed < sndp->rx_compressed) ||
(sndc->tx_compressed < sndp->tx_compressed) ||
(sndc->multicast < sndp->multicast)) {
/*
* Special processing for rx_bytes (_packets) and
* tx_bytes (_packets) counters: If the number of
* bytes (packets) has decreased, whereas the number of
* packets (bytes) has increased, then assume that the
* relevant counter has met an overflow condition, and that
* the interface was not unregistered, which is all the
* more plausible that the previous value for the counter
* was > ULONG_MAX/2.
* NB: the average value displayed will be wrong in this case...
*
* If such an overflow is detected, just set the flag. There is no
* need to handle this in a special way: the difference is still
* properly calculated if the result is of the same type (i.e.
* unsigned long) as the two values.
*/
int ovfw = FALSE;
if ((sndc->rx_bytes < sndp->rx_bytes) &&
(sndc->rx_packets > sndp->rx_packets) &&
(sndp->rx_bytes > (~0UL >> 1))) {
ovfw = TRUE;
}
if ((sndc->tx_bytes < sndp->tx_bytes) &&
(sndc->tx_packets > sndp->tx_packets) &&
(sndp->tx_bytes > (~0UL >> 1))) {
ovfw = TRUE;
}
if ((sndc->rx_packets < sndp->rx_packets) &&
(sndc->rx_bytes > sndp->rx_bytes) &&
(sndp->rx_packets > (~0UL >> 1))) {
ovfw = TRUE;
}
if ((sndc->tx_packets < sndp->tx_packets) &&
(sndc->tx_bytes > sndp->tx_bytes) &&
(sndp->tx_packets > (~0UL >> 1))) {
ovfw = TRUE;
}
if (!ovfw) {
/*
* OK: assume here that the device was
* actually unregistered.
*/
memset(sndp, 0, STATS_NET_DEV_SIZE);
strncpy(sndp->interface, sndc->interface, MAX_IFACE_LEN - 1);
}
}
return index;
}
index++;
}
/* This is a newly registered interface */
return -1;
}
/*
***************************************************************************
* Network interfaces may now be registered (and unregistered) dynamically.
* This is what we try to guess here.
*
* IN:
* @a Activity structure with statistics.
* @curr Index in array for current sample statistics.
* @ref Index in array for sample statistics used as reference.
* @pos Index on current network interface.
*
* RETURNS:
* Position of current network interface in array of sample statistics used
* as reference, or -1 if it is a newly registered interface.
***************************************************************************
*/
int check_net_edev_reg(struct activity *a, int curr, int ref, int pos)
{
struct stats_net_edev *snedc, *snedp;
int index = 0;
snedc = (struct stats_net_edev *) ((char *) a->buf[curr] + pos * a->msize);
while (index < a->nr) {
snedp = (struct stats_net_edev *) ((char *) a->buf[ref] + index * a->msize);
if (!strcmp(snedc->interface, snedp->interface)) {
/*
* Network interface found.
* If a counter has decreased, then we may assume that the
* corresponding interface was unregistered, then registered again.
*/
if ((snedc->tx_errors < snedp->tx_errors) ||
(snedc->collisions < snedp->collisions) ||
(snedc->rx_dropped < snedp->rx_dropped) ||
(snedc->tx_dropped < snedp->tx_dropped) ||
(snedc->tx_carrier_errors < snedp->tx_carrier_errors) ||
(snedc->rx_frame_errors < snedp->rx_frame_errors) ||
(snedc->rx_fifo_errors < snedp->rx_fifo_errors) ||
(snedc->tx_fifo_errors < snedp->tx_fifo_errors)) {
/*
* OK: assume here that the device was
* actually unregistered.
*/
memset(snedp, 0, STATS_NET_EDEV_SIZE);
strncpy(snedp->interface, snedc->interface, MAX_IFACE_LEN - 1);
}
return index;
}
index++;
}
/* This is a newly registered interface */
return -1;
}
/*
***************************************************************************
* Disks may be registered dynamically (true in /proc/stat file).
* This is what we try to guess here.
*
* IN:
* @a Activity structure with statistics.
* @curr Index in array for current sample statistics.
* @ref Index in array for sample statistics used as reference.
* @pos Index on current disk.
*
* RETURNS:
* Position of current disk in array of sample statistics used as reference
* or -1 if it is a newly registered device.
***************************************************************************
*/
int check_disk_reg(struct activity *a, int curr, int ref, int pos)
{
struct stats_disk *sdc, *sdp;
int index = 0;
sdc = (struct stats_disk *) ((char *) a->buf[curr] + pos * a->msize);
while (index < a->nr) {
sdp = (struct stats_disk *) ((char *) a->buf[ref] + index * a->msize);
if ((sdc->major == sdp->major) &&
(sdc->minor == sdp->minor)) {
/*
* Disk found.
* If all the counters have decreased then the likelyhood
* is that the disk has been unregistered and a new disk inserted.
* If only one or two have decreased then the likelyhood
* is that the counter has simply wrapped.
*/
if ((sdc->nr_ios < sdp->nr_ios) &&
(sdc->rd_sect < sdp->rd_sect) &&
(sdc->wr_sect < sdp->wr_sect)) {
memset(sdp, 0, STATS_DISK_SIZE);
sdp->major = sdc->major;
sdp->minor = sdc->minor;
}
return index;
}
index++;
}
/* This is a newly registered device */
return -1;
}
/*
***************************************************************************
* Allocate bitmaps for activities that have one.
*
* IN:
* @act Array of activities.
***************************************************************************
*/
void allocate_bitmaps(struct activity *act[])
{
int i;
for (i = 0; i < NR_ACT; i++) {
/*
* If current activity has a bitmap which has not already
* been allocated, then allocate it.
* Note that a same bitmap may be used by several activities.
*/
if (act[i]->bitmap && !act[i]->bitmap->b_array) {
SREALLOC(act[i]->bitmap->b_array, unsigned char,
BITMAP_SIZE(act[i]->bitmap->b_size));
}
}
}
/*
***************************************************************************
* Free bitmaps for activities that have one.
*
* IN:
* @act Array of activities.
***************************************************************************
*/
void free_bitmaps(struct activity *act[])
{
int i;
for (i = 0; i < NR_ACT; i++) {
if (act[i]->bitmap && act[i]->bitmap->b_array) {
free(act[i]->bitmap->b_array);
/* Set pointer to NULL to prevent it from being freed again */
act[i]->bitmap->b_array = NULL;
}
}
}
/*
***************************************************************************
* Look for activity in array.
*
* IN:
* @act Array of activities.
* @act_flag Activity flag to look for.
* @stop TRUE if sysstat should exit when activity is not found.
*
* RETURNS:
* Position of activity in array, or -1 if not found (this may happen when
* reading data from a system activity file created by another version of
* sysstat).
***************************************************************************
*/
int get_activity_position(struct activity *act[], unsigned int act_flag, int stop)
{
int i;
for (i = 0; i < NR_ACT; i++) {
if (act[i]->id == act_flag)
return i;
}
if (stop) {
PANIC((int) act_flag);
}
return -1;
}
/*
***************************************************************************
* Count number of activities with given option.
*
* IN:
* @act Array of activities.
* @option Option that activities should have to be counted
* (eg. AO_COLLECTED...)
* @count_outputs TRUE if each output should be counted for activities with
* multiple outputs.
*
* RETURNS:
* Number of selected activities
***************************************************************************
*/
int get_activity_nr(struct activity *act[], unsigned int option, int count_outputs)
{
int i, n = 0;
unsigned int msk;
for (i = 0; i < NR_ACT; i++) {
if ((act[i]->options & option) == option) {
if (HAS_MULTIPLE_OUTPUTS(act[i]->options) && count_outputs) {
for (msk = 1; msk < 0x100; msk <<= 1) {
if ((act[i]->opt_flags & 0xff) & msk) {
n++;
}
}
}
else {
n++;
}
}
}
return n;
}
/*
***************************************************************************
* Select all activities, even if they have no associated items.
*
* IN:
* @act Array of activities.
*
* OUT:
* @act Array of activities, all of the being selected.
***************************************************************************
*/
void select_all_activities(struct activity *act[])
{
int i;
for (i = 0; i < NR_ACT; i++) {
act[i]->options |= AO_SELECTED;
}
}
/*
***************************************************************************
* Select CPU activity if no other activities have been explicitly selected.
* Also select CPU "all" if no other CPU has been selected.
*
* IN:
* @act Array of activities.
*
* OUT:
* @act Array of activities with CPU activity selected if needed.
***************************************************************************
*/
void select_default_activity(struct activity *act[])
{
int p;
p = get_activity_position(act, A_CPU, EXIT_IF_NOT_FOUND);
/* Default is CPU activity... */
if (!get_activity_nr(act, AO_SELECTED, COUNT_ACTIVITIES)) {
/*
* Still OK even when reading stats from a file
* since A_CPU activity is always recorded.
*/
act[p]->options |= AO_SELECTED;
}
/*
* If no CPU's have been selected then select CPU "all".
* cpu_bitmap bitmap may be used by several activities (A_CPU, A_PWR_CPUFREQ...)
*/
if (!count_bits(cpu_bitmap.b_array, BITMAP_SIZE(cpu_bitmap.b_size))) {
cpu_bitmap.b_array[0] |= 0x01;
}
}
/*
***************************************************************************
* Read data from a system activity data file.
*
* IN:
* @ifd Input file descriptor.
* @buffer Buffer where data are read.
* @size Number of bytes to read.
* @mode If set to HARD_SIZE, indicate that an EOF should be considered
* as an error.
*
* RETURNS:
* 1 if EOF has been reached, 0 otherwise.
***************************************************************************
*/
int sa_fread(int ifd, void *buffer, int size, int mode)
{
int n;
if ((n = read(ifd, buffer, size)) < 0) {
fprintf(stderr, _("Error while reading system activity file: %s\n"),
strerror(errno));
close(ifd);
exit(2);
}
if (!n && (mode == SOFT_SIZE))
return 1; /* EOF */
if (n < size) {
fprintf(stderr, _("End of system activity file unexpected\n"));
close(ifd);
exit(2);
}
return 0;
}
/*
***************************************************************************
* Display sysstat version used to create system activity data file.
*
* IN:
* @st Output stream (stderr or stdout).
* @file_magic File magic header.
***************************************************************************
*/
void display_sa_file_version(FILE *st, struct file_magic *file_magic)
{
fprintf(st, _("File created by sar/sadc from sysstat version %d.%d.%d"),
file_magic->sysstat_version,
file_magic->sysstat_patchlevel,
file_magic->sysstat_sublevel);
if (file_magic->sysstat_extraversion) {
fprintf(st, ".%d", file_magic->sysstat_extraversion);
}
fprintf(st, "\n");
}
/*
***************************************************************************
* An invalid system activity file has been opened for reading.
* If this file was created by an old version of sysstat, tell it to the
* user...
*
* IN:
* @fd Descriptor of the file that has been opened.
* @file_magic file_magic structure filled with file magic header data.
* May contain invalid data.
* @file Name of the file being read.
* @n Number of bytes read while reading file magic header.
* This function may also be called after failing to read file
* standard header, or if CPU activity has not been found in
* file. In this case, n is set to 0.
***************************************************************************
*/
void handle_invalid_sa_file(int *fd, struct file_magic *file_magic, char *file,
int n)
{
unsigned short sm;
fprintf(stderr, _("Invalid system activity file: %s\n"), file);
if (n == FILE_MAGIC_SIZE) {
sm = (file_magic->sysstat_magic << 8) | (file_magic->sysstat_magic >> 8);
if ((file_magic->sysstat_magic == SYSSTAT_MAGIC) || (sm == SYSSTAT_MAGIC)) {
/*
* This is a sysstat file, but this file has an old format
* or its internal endian format doesn't match.
*/
display_sa_file_version(stderr, file_magic);
if (sm == SYSSTAT_MAGIC) {
fprintf(stderr, _("Endian format mismatch\n"));
}
else {
fprintf(stderr,
_("Current sysstat version cannot read the format of this file (%#x)\n"),
file_magic->format_magic);
}
}
}
close (*fd);
exit(3);
}
/*
***************************************************************************
* Move structures data.
*
* IN:
* @act Array of activities.
* @id_seq Activity sequence in file.
* @record_hdr Current record header.
* @dest Index in array where stats have to be copied to.
* @src Index in array where stats to copy are.
***************************************************************************
*/
void copy_structures(struct activity *act[], unsigned int id_seq[],
struct record_header record_hdr[], int dest, int src)
{
int i, p;
memcpy(&record_hdr[dest], &record_hdr[src], RECORD_HEADER_SIZE);
for (i = 0; i < NR_ACT; i++) {
if (!id_seq[i])
continue;
p = get_activity_position(act, id_seq[i], EXIT_IF_NOT_FOUND);
if ((act[p]->nr < 1) || (act[p]->nr2 < 1)) {
PANIC(1);
}
memcpy(act[p]->buf[dest], act[p]->buf[src],
(size_t) act[p]->msize * (size_t) act[p]->nr * (size_t) act[p]->nr2);
}
}
/*
***************************************************************************
* Read varying part of the statistics from a daily data file.
*
* IN:
* @act Array of activities.
* @curr Index in array for current sample statistics.
* @ifd Input file descriptor.
* @act_nr Number of activities in file.
* @file_actlst Activity list in file.
***************************************************************************
*/
void read_file_stat_bunch(struct activity *act[], int curr, int ifd, int act_nr,
struct file_activity *file_actlst)
{
int i, j, k, p;
struct file_activity *fal = file_actlst;
off_t offset;
for (i = 0; i < act_nr; i++, fal++) {
if (((p = get_activity_position(act, fal->id, RESUME_IF_NOT_FOUND)) < 0) ||
(act[p]->magic != fal->magic)) {
/*
* Ignore current activity in file, which is unknown to
* current sysstat version or has an unknown format.
*/
offset = (off_t) fal->size * (off_t) fal->nr * (off_t) fal->nr2;
if (lseek(ifd, offset, SEEK_CUR) < offset) {
close(ifd);
perror("lseek");
exit(2);
}
}
else if ((act[p]->nr > 0) &&
((act[p]->nr > 1) || (act[p]->nr2 > 1)) &&
(act[p]->msize > act[p]->fsize)) {
for (j = 0; j < act[p]->nr; j++) {
for (k = 0; k < act[p]->nr2; k++) {
sa_fread(ifd,
(char *) act[p]->buf[curr] + (j * act[p]->nr2 + k) * act[p]->msize,
act[p]->fsize, HARD_SIZE);
}
}
}
else if (act[p]->nr > 0) {
sa_fread(ifd, act[p]->buf[curr], act[p]->fsize * act[p]->nr * act[p]->nr2, HARD_SIZE);
}
else {
PANIC(p);
}
}
}
/*
***************************************************************************
* Open a sysstat activity data file and read its magic structure.
*
* IN:
* @dfile Name of system activity data file.
* @ignore Set to 1 if a true sysstat activity file but with a bad
* format should not yield an error message. Useful with
* sadf -H and sadf -c.
*
* OUT:
* @fd System activity data file descriptor.
* @file_magic file_magic structure containing data read from file magic
* header.
*
* RETURNS:
* -1 if data file is a sysstat file with an old format, 0 otherwise.
***************************************************************************
*/
int sa_open_read_magic(int *fd, char *dfile, struct file_magic *file_magic,
int ignore)
{
int n;
/* Open sa data file */
if ((*fd = open(dfile, O_RDONLY)) < 0) {
int saved_errno = errno;
fprintf(stderr, _("Cannot open %s: %s\n"), dfile, strerror(errno));
if ((saved_errno == ENOENT) && default_file_used) {
fprintf(stderr, _("Please check if data collecting is enabled\n"));
}
exit(2);
}
/* Read file magic data */
n = read(*fd, file_magic, FILE_MAGIC_SIZE);
if ((n != FILE_MAGIC_SIZE) ||
(file_magic->sysstat_magic != SYSSTAT_MAGIC) ||
((file_magic->format_magic != FORMAT_MAGIC) && !ignore)) {
/* Display error message and exit */
handle_invalid_sa_file(fd, file_magic, dfile, n);
}
if ((file_magic->sysstat_version > 10) ||
((file_magic->sysstat_version == 10) && (file_magic->sysstat_patchlevel >= 3))) {
/* header_size field exists only for sysstat versions 10.3.1 and later */
if ((file_magic->header_size <= MIN_FILE_HEADER_SIZE) ||
(file_magic->header_size > MAX_FILE_HEADER_SIZE) ||
((file_magic->header_size < FILE_HEADER_SIZE) && !ignore)) {
/* Display error message and exit */
handle_invalid_sa_file(fd, file_magic, dfile, n);
}
}
if (file_magic->format_magic != FORMAT_MAGIC)
/* This is an old sa datafile format */
return -1;
return 0;
}
/*
***************************************************************************
* Open a data file, and perform various checks before reading.
*
* IN:
* @dfile Name of system activity data file.
* @act Array of activities.
* @ignore Set to 1 if a true sysstat activity file but with a bad
* format should not yield an error message. Useful with
* sadf -H and sadf -c.
*
* OUT:
* @ifd System activity data file descriptor.
* @file_magic file_magic structure containing data read from file magic
* header.
* @file_hdr file_hdr structure containing data read from file standard
* header.
* @file_actlst Acvtivity list in file.
* @id_seq Activity sequence.
***************************************************************************
*/
void check_file_actlst(int *ifd, char *dfile, struct activity *act[],
struct file_magic *file_magic, struct file_header *file_hdr,
struct file_activity **file_actlst, unsigned int id_seq[],
int ignore)
{
int i, j, p;
unsigned int a_cpu = FALSE;
struct file_activity *fal;
void *buffer = NULL;
/* Open sa data file and read its magic structure */
if (sa_open_read_magic(ifd, dfile, file_magic, ignore) < 0)
return;
SREALLOC(buffer, char, file_magic->header_size);
/* Read sa data file standard header and allocate activity list */
sa_fread(*ifd, buffer, file_magic->header_size, HARD_SIZE);
/*
* Data file header size may be greater than FILE_HEADER_SIZE, but
* anyway only the first FILE_HEADER_SIZE bytes can be interpreted.
*/
memcpy(file_hdr, buffer, FILE_HEADER_SIZE);
free(buffer);
/*
* Sanity check.
* Compare against MAX_NR_ACT and not NR_ACT because
* we are maybe reading a datafile from a future sysstat version
* with more activities than known today.
*/
if (file_hdr->sa_act_nr > MAX_NR_ACT) {
/* Maybe a "false positive" sysstat datafile? */
handle_invalid_sa_file(ifd, file_magic, dfile, 0);
}
SREALLOC(*file_actlst, struct file_activity, FILE_ACTIVITY_SIZE * file_hdr->sa_act_nr);
fal = *file_actlst;
/* Read activity list */
j = 0;
for (i = 0; i < file_hdr->sa_act_nr; i++, fal++) {
sa_fread(*ifd, fal, FILE_ACTIVITY_SIZE, HARD_SIZE);
/*
* Every activity, known or unknown, should have
* at least one item and sub-item.
* Also check that the number of items and sub-items
* doesn't exceed a max value. This is necessary
* because we will use @nr and @nr2 to
* allocate memory to read the file contents. So we
* must make sure the file is not corrupted.
* NB: Another check will be made below for known
* activities which have each a specific max value.
*/
if ((fal->nr < 1) || (fal->nr2 < 1) ||
(fal->nr > NR_MAX) || (fal->nr2 > NR2_MAX)) {
handle_invalid_sa_file(ifd, file_magic, dfile, 0);
}
if ((p = get_activity_position(act, fal->id, RESUME_IF_NOT_FOUND)) < 0)
/* Unknown activity */
continue;
if (act[p]->magic != fal->magic) {
/* Bad magical number */
if (ignore) {
/*
* This is how sadf -H knows that this
* activity has an unknown format.
*/
act[p]->magic = ACTIVITY_MAGIC_UNKNOWN;
}
else
continue;
}
/* Check max value for known activities */
if (fal->nr > act[p]->nr_max) {
handle_invalid_sa_file(ifd, file_magic, dfile, 0);
}
if (fal->id == A_CPU) {
a_cpu = TRUE;
}
if (fal->size > act[p]->msize) {
act[p]->msize = fal->size;
}
/*
* NOTA BENE:
* If current activity is a volatile one then fal->nr is the
* number of items (CPU at the present time as only CPU related
* activities are volatile today) for the statistics located
* between the start of the data file and the first restart mark.
* Volatile activities have a number of items which can vary
* in file. In this case, a RESTART record is followed by the
* volatile activity structures.
*/
act[p]->nr = fal->nr;
act[p]->nr2 = fal->nr2;
act[p]->fsize = fal->size;
/*
* This is a known activity with a known format
* (magical number). Only such activities will be displayed.
* (Well, this may also be an unknown format if we have entered sadf -H.)
*/
id_seq[j++] = fal->id;
}
if (!a_cpu) {
/*
* CPU activity should always be in file
* and have a known format (expected magical number).
*/
handle_invalid_sa_file(ifd, file_magic, dfile, 0);
}
while (j < NR_ACT) {
id_seq[j++] = 0;
}
/* Check that at least one selected activity is available in file */
for (i = 0; i < NR_ACT; i++) {
if (!IS_SELECTED(act[i]->options))
continue;
/* Here is a selected activity: Does it exist in file? */
fal = *file_actlst;
for (j = 0; j < file_hdr->sa_act_nr; j++, fal++) {
if (act[i]->id == fal->id)
break;
}
if (j == file_hdr->sa_act_nr) {
/* No: Unselect it */
act[i]->options &= ~AO_SELECTED;
}
}
if (!get_activity_nr(act, AO_SELECTED, COUNT_ACTIVITIES)) {
fprintf(stderr, _("Requested activities not available in file %s\n"),
dfile);
close(*ifd);
exit(1);
}
}
/*
***************************************************************************
* Set number of items for current volatile activity and reallocate its
* structures accordingly.
* NB: As only activities related to CPU can be volatile, the number of
* items corresponds in fact to the number of CPU.
*
* IN:
* @act Array of activities.
* @act_nr Number of items for current volatile activity.
* @act_id Activity identification for current volatile activity.
*
* RETURN:
* -1 if unknown activity and 0 otherwise.
***************************************************************************
*/
int reallocate_vol_act_structures(struct activity *act[], unsigned int act_nr,
unsigned int act_id)
{
int j, p;
if ((p = get_activity_position(act, act_id, RESUME_IF_NOT_FOUND)) < 0)
/* Ignore unknown activity */
return -1;
act[p]->nr = act_nr;
for (j = 0; j < 3; j++) {
SREALLOC(act[p]->buf[j], void,
(size_t) act[p]->msize * (size_t) act[p]->nr * (size_t) act[p]->nr2);
}
return 0;
}
/*
***************************************************************************
* Read the volatile activities structures following a RESTART record.
* Then set number of items for each corresponding activity and reallocate
* structures.
*
* IN:
* @ifd Input file descriptor.
* @act Array of activities.
* @file Name of file being read.
* @file_magic file_magic structure filled with file magic header data.
* @vol_act_nr Number of volatile activities structures to read.
*
* RETURNS:
* New number of items.
*
* NB: As only activities related to CPU can be volatile, the new number of
* items corresponds in fact to the new number of CPU.
***************************************************************************
*/
__nr_t read_vol_act_structures(int ifd, struct activity *act[], char *file,
struct file_magic *file_magic,
unsigned int vol_act_nr)
{
struct file_activity file_act;
int item_nr = 0;
int i, rc;
for (i = 0; i < vol_act_nr; i++) {
sa_fread(ifd, &file_act, FILE_ACTIVITY_SIZE, HARD_SIZE);
if (file_act.id) {
rc = reallocate_vol_act_structures(act, file_act.nr, file_act.id);
if ((rc == 0) && !item_nr) {
item_nr = file_act.nr;
}
}
/* else ignore empty structures that may exist */
}
if (!item_nr) {
/* All volatile activities structures cannot be empty */
handle_invalid_sa_file(&ifd, file_magic, file, 0);
}
return item_nr;
}
/*
***************************************************************************
* Parse sar activities options (also used by sadf).
*
* IN:
* @argv Arguments list.
* @opt Index in list of arguments.
* @caller Indicate whether it's sar or sadf that called this function.
*
* OUT:
* @act Array of selected activities.
* @flags Common flags and system state.
*
* RETURNS:
* 0 on success.
***************************************************************************
*/
int parse_sar_opt(char *argv[], int *opt, struct activity *act[],
unsigned int *flags, int caller)
{
int i, p;
for (i = 1; *(argv[*opt] + i); i++) {
/*
* Note: argv[*opt] contains something like "-BruW"
* *(argv[*opt] + i) will contain 'B', 'r', etc.
*/
switch (*(argv[*opt] + i)) {
case 'A':
select_all_activities(act);
/* Force '-P ALL -I XALL -r ALL -u ALL' */
p = get_activity_position(act, A_MEMORY, EXIT_IF_NOT_FOUND);
act[p]->opt_flags |= AO_F_MEM_AMT + AO_F_MEM_DIA +
AO_F_MEM_SWAP + AO_F_MEM_ALL;
p = get_activity_position(act, A_IRQ, EXIT_IF_NOT_FOUND);
set_bitmap(act[p]->bitmap->b_array, ~0,
BITMAP_SIZE(act[p]->bitmap->b_size));
p = get_activity_position(act, A_CPU, EXIT_IF_NOT_FOUND);
set_bitmap(act[p]->bitmap->b_array, ~0,
BITMAP_SIZE(act[p]->bitmap->b_size));
act[p]->opt_flags = AO_F_CPU_ALL;
p = get_activity_position(act, A_FILESYSTEM, EXIT_IF_NOT_FOUND);
act[p]->opt_flags = AO_F_FILESYSTEM;
break;
case 'B':
SELECT_ACTIVITY(A_PAGE);
break;
case 'b':
SELECT_ACTIVITY(A_IO);
break;
case 'C':
*flags |= S_F_COMMENT;
break;
case 'd':
SELECT_ACTIVITY(A_DISK);
break;
case 'F':
p = get_activity_position(act, A_FILESYSTEM, EXIT_IF_NOT_FOUND);
act[p]->options |= AO_SELECTED;
if (!*(argv[*opt] + i + 1) && argv[*opt + 1] && !strcmp(argv[*opt + 1], K_MOUNT)) {
(*opt)++;
act[p]->opt_flags |= AO_F_MOUNT;
return 0;
}
else {
act[p]->opt_flags |= AO_F_FILESYSTEM;
}
break;
case 'H':
p = get_activity_position(act, A_HUGE, EXIT_IF_NOT_FOUND);
act[p]->options |= AO_SELECTED;
break;
case 'j':
if (argv[*opt + 1]) {
(*opt)++;
if (strnlen(argv[*opt], MAX_FILE_LEN) >= MAX_FILE_LEN - 1)
return 1;
strncpy(persistent_name_type, argv[*opt], MAX_FILE_LEN - 1);
persistent_name_type[MAX_FILE_LEN - 1] = '\0';
strtolower(persistent_name_type);
if (!get_persistent_type_dir(persistent_name_type)) {
fprintf(stderr, _("Invalid type of persistent device name\n"));
return 2;
}
/*
* If persistent device name doesn't exist for device, use
* its pretty name.
*/
*flags |= S_F_PERSIST_NAME + S_F_DEV_PRETTY;
return 0;
}
else {
return 1;
}
break;
case 'p':
*flags |= S_F_DEV_PRETTY;
break;
case 'q':
SELECT_ACTIVITY(A_QUEUE);
break;
case 'r':
p = get_activity_position(act, A_MEMORY, EXIT_IF_NOT_FOUND);
act[p]->options |= AO_SELECTED;
act[p]->opt_flags |= AO_F_MEM_AMT;
if (!*(argv[*opt] + i + 1) && argv[*opt + 1] && !strcmp(argv[*opt + 1], K_ALL)) {
(*opt)++;
act[p]->opt_flags |= AO_F_MEM_ALL;
return 0;
}
break;
case 'R':
p = get_activity_position(act, A_MEMORY, EXIT_IF_NOT_FOUND);
act[p]->options |= AO_SELECTED;
act[p]->opt_flags |= AO_F_MEM_DIA;
break;
case 'S':
p = get_activity_position(act, A_MEMORY, EXIT_IF_NOT_FOUND);
act[p]->options |= AO_SELECTED;
act[p]->opt_flags |= AO_F_MEM_SWAP;
break;
case 't':
/*
* Check sar option -t here (as it can be combined
* with other ones, eg. "sar -rtu ..."
* But sadf option -t is checked in sadf.c as it won't
* be entered as a sar option after "--".
*/
if (caller == C_SAR) {
*flags |= S_F_TRUE_TIME;
}
else
return 1;
break;
case 'u':
p = get_activity_position(act, A_CPU, EXIT_IF_NOT_FOUND);
act[p]->options |= AO_SELECTED;
if (!*(argv[*opt] + i + 1) && argv[*opt + 1] && !strcmp(argv[*opt + 1], K_ALL)) {
(*opt)++;
act[p]->opt_flags = AO_F_CPU_ALL;
return 0;
}
else {
act[p]->opt_flags = AO_F_CPU_DEF;
}
break;
case 'v':
SELECT_ACTIVITY(A_KTABLES);
break;
case 'w':
SELECT_ACTIVITY(A_PCSW);
break;
case 'W':
SELECT_ACTIVITY(A_SWAP);
break;
case 'y':
SELECT_ACTIVITY(A_SERIAL);
break;
case 'V':
print_version();
break;
default:
return 1;
}
}
return 0;
}
/*
***************************************************************************
* Parse sar "-m" option.
*
* IN:
* @argv Arguments list.
* @opt Index in list of arguments.
*
* OUT:
* @act Array of selected activities.
*
* RETURNS:
* 0 on success, 1 otherwise.
***************************************************************************
*/
int parse_sar_m_opt(char *argv[], int *opt, struct activity *act[])
{
char *t;
for (t = strtok(argv[*opt], ","); t; t = strtok(NULL, ",")) {
if (!strcmp(t, K_CPU)) {
SELECT_ACTIVITY(A_PWR_CPUFREQ);
}
else if (!strcmp(t, K_FAN)) {
SELECT_ACTIVITY(A_PWR_FAN);
}
else if (!strcmp(t, K_IN)) {
SELECT_ACTIVITY(A_PWR_IN);
}
else if (!strcmp(t, K_TEMP)) {
SELECT_ACTIVITY(A_PWR_TEMP);
}
else if (!strcmp(t, K_FREQ)) {
SELECT_ACTIVITY(A_PWR_WGHFREQ);
}
else if (!strcmp(t, K_USB)) {
SELECT_ACTIVITY(A_PWR_USB);
}
else if (!strcmp(t, K_ALL)) {
SELECT_ACTIVITY(A_PWR_CPUFREQ);
SELECT_ACTIVITY(A_PWR_FAN);
SELECT_ACTIVITY(A_PWR_IN);
SELECT_ACTIVITY(A_PWR_TEMP);
SELECT_ACTIVITY(A_PWR_WGHFREQ);
SELECT_ACTIVITY(A_PWR_USB);
}
else
return 1;
}
(*opt)++;
return 0;
}
/*
***************************************************************************
* Parse sar "-n" option.
*
* IN:
* @argv Arguments list.
* @opt Index in list of arguments.
*
* OUT:
* @act Array of selected activities.
*
* RETURNS:
* 0 on success, 1 otherwise.
***************************************************************************
*/
int parse_sar_n_opt(char *argv[], int *opt, struct activity *act[])
{
char *t;
for (t = strtok(argv[*opt], ","); t; t = strtok(NULL, ",")) {
if (!strcmp(t, K_DEV)) {
SELECT_ACTIVITY(A_NET_DEV);
}
else if (!strcmp(t, K_EDEV)) {
SELECT_ACTIVITY(A_NET_EDEV);
}
else if (!strcmp(t, K_SOCK)) {
SELECT_ACTIVITY(A_NET_SOCK);
}
else if (!strcmp(t, K_NFS)) {
SELECT_ACTIVITY(A_NET_NFS);
}
else if (!strcmp(t, K_NFSD)) {
SELECT_ACTIVITY(A_NET_NFSD);
}
else if (!strcmp(t, K_IP)) {
SELECT_ACTIVITY(A_NET_IP);
}
else if (!strcmp(t, K_EIP)) {
SELECT_ACTIVITY(A_NET_EIP);
}
else if (!strcmp(t, K_ICMP)) {
SELECT_ACTIVITY(A_NET_ICMP);
}
else if (!strcmp(t, K_EICMP)) {
SELECT_ACTIVITY(A_NET_EICMP);
}
else if (!strcmp(t, K_TCP)) {
SELECT_ACTIVITY(A_NET_TCP);
}
else if (!strcmp(t, K_ETCP)) {
SELECT_ACTIVITY(A_NET_ETCP);
}
else if (!strcmp(t, K_UDP)) {
SELECT_ACTIVITY(A_NET_UDP);
}
else if (!strcmp(t, K_SOCK6)) {
SELECT_ACTIVITY(A_NET_SOCK6);
}
else if (!strcmp(t, K_IP6)) {
SELECT_ACTIVITY(A_NET_IP6);
}
else if (!strcmp(t, K_EIP6)) {
SELECT_ACTIVITY(A_NET_EIP6);
}
else if (!strcmp(t, K_ICMP6)) {
SELECT_ACTIVITY(A_NET_ICMP6);
}
else if (!strcmp(t, K_EICMP6)) {
SELECT_ACTIVITY(A_NET_EICMP6);
}
else if (!strcmp(t, K_UDP6)) {
SELECT_ACTIVITY(A_NET_UDP6);
}
else if (!strcmp(t, K_FC)) {
SELECT_ACTIVITY(A_NET_FC);
}
else if (!strcmp(t, K_ALL)) {
SELECT_ACTIVITY(A_NET_DEV);
SELECT_ACTIVITY(A_NET_EDEV);
SELECT_ACTIVITY(A_NET_SOCK);
SELECT_ACTIVITY(A_NET_NFS);
SELECT_ACTIVITY(A_NET_NFSD);
SELECT_ACTIVITY(A_NET_IP);
SELECT_ACTIVITY(A_NET_EIP);
SELECT_ACTIVITY(A_NET_ICMP);
SELECT_ACTIVITY(A_NET_EICMP);
SELECT_ACTIVITY(A_NET_TCP);
SELECT_ACTIVITY(A_NET_ETCP);
SELECT_ACTIVITY(A_NET_UDP);
SELECT_ACTIVITY(A_NET_SOCK6);
SELECT_ACTIVITY(A_NET_IP6);
SELECT_ACTIVITY(A_NET_EIP6);
SELECT_ACTIVITY(A_NET_ICMP6);
SELECT_ACTIVITY(A_NET_EICMP6);
SELECT_ACTIVITY(A_NET_UDP6);
SELECT_ACTIVITY(A_NET_FC);
}
else
return 1;
}
(*opt)++;
return 0;
}
/*
***************************************************************************
* Parse sar "-I" option.
*
* IN:
* @argv Arguments list.
* @opt Index in list of arguments.
* @act Array of activities.
*
* OUT:
* @act Array of activities, with interrupts activity selected.
*
* RETURNS:
* 0 on success, 1 otherwise.
***************************************************************************
*/
int parse_sar_I_opt(char *argv[], int *opt, struct activity *act[])
{
int i, p;
unsigned char c;
char *t;
/* Select interrupt activity */
p = get_activity_position(act, A_IRQ, EXIT_IF_NOT_FOUND);
act[p]->options |= AO_SELECTED;
for (t = strtok(argv[*opt], ","); t; t = strtok(NULL, ",")) {
if (!strcmp(t, K_SUM)) {
/* Select total number of interrupts */
act[p]->bitmap->b_array[0] |= 0x01;
}
else if (!strcmp(t, K_ALL)) {
/* Set bit for the first 16 individual interrupts */
act[p]->bitmap->b_array[0] |= 0xfe;
act[p]->bitmap->b_array[1] |= 0xff;
act[p]->bitmap->b_array[2] |= 0x01;
}
else if (!strcmp(t, K_XALL)) {
/* Set every bit except for total number of interrupts */
c = act[p]->bitmap->b_array[0];
set_bitmap(act[p]->bitmap->b_array, ~0,
BITMAP_SIZE(act[p]->bitmap->b_size));
act[p]->bitmap->b_array[0] = 0xfe | c;
}
else {
/* Get irq number */
if (strspn(t, DIGITS) != strlen(t))
return 1;
i = atoi(t);
if ((i < 0) || (i >= act[p]->bitmap->b_size))
return 1;
act[p]->bitmap->b_array[(i + 1) >> 3] |= 1 << ((i + 1) & 0x07);
}
}
(*opt)++;
return 0;
}
/*
***************************************************************************
* Parse sar and sadf "-P" option.
*
* IN:
* @argv Arguments list.
* @opt Index in list of arguments.
* @act Array of activities.
*
* OUT:
* @flags Common flags and system state.
* @act Array of activities, with CPUs selected.
*
* RETURNS:
* 0 on success, 1 otherwise.
***************************************************************************
*/
int parse_sa_P_opt(char *argv[], int *opt, unsigned int *flags, struct activity *act[])
{
int i, p;
char *t;
p = get_activity_position(act, A_CPU, EXIT_IF_NOT_FOUND);
if (argv[++(*opt)]) {
for (t = strtok(argv[*opt], ","); t; t = strtok(NULL, ",")) {
if (!strcmp(t, K_ALL)) {
/*
* Set bit for every processor.
* We still don't know if we are going to read stats
* from a file or not...
*/
set_bitmap(act[p]->bitmap->b_array, ~0,
BITMAP_SIZE(act[p]->bitmap->b_size));
}
else {
/* Get cpu number */
if (strspn(t, DIGITS) != strlen(t))
return 1;
i = atoi(t);
if ((i < 0) || (i >= act[p]->bitmap->b_size))
return 1;
act[p]->bitmap->b_array[(i + 1) >> 3] |= 1 << ((i + 1) & 0x07);
}
}
(*opt)++;
}
else
return 1;
return 0;
}
/*
***************************************************************************
* Compute network interface utilization.
*
* IN:
* @st_net_dev Structure with network interface stats.
* @rx Number of bytes received per second.
* @tx Number of bytes transmitted per second.
*
* RETURNS:
* NIC utilization (0-100%).
***************************************************************************
*/
double compute_ifutil(struct stats_net_dev *st_net_dev, double rx, double tx)
{
unsigned long long speed;
if (st_net_dev->speed) {
speed = (unsigned long long) st_net_dev->speed * 1000000;
if (st_net_dev->duplex == C_DUPLEX_FULL) {
/* Full duplex */
if (rx > tx) {
return (rx * 800 / speed);
}
else {
return (tx * 800 / speed);
}
}
else {
/* Half duplex */
return ((rx + tx) * 800 / speed);
}
}
return 0;
}
/*
***************************************************************************
* Fill system activity file magic header.
*
* IN:
* @file_magic System activity file magic header.
***************************************************************************
*/
void enum_version_nr(struct file_magic *fm)
{
char *v;
char version[16];
fm->sysstat_extraversion = 0;
strcpy(version, VERSION);
/* Get version number */
if ((v = strtok(version, ".")) == NULL)
return;
fm->sysstat_version = atoi(v) & 0xff;
/* Get patchlevel number */
if ((v = strtok(NULL, ".")) == NULL)
return;
fm->sysstat_patchlevel = atoi(v) & 0xff;
/* Get sublevel number */
if ((v = strtok(NULL, ".")) == NULL)
return;
fm->sysstat_sublevel = atoi(v) & 0xff;
/* Get extraversion number. Don't necessarily exist */
if ((v = strtok(NULL, ".")) == NULL)
return;
fm->sysstat_extraversion = atoi(v) & 0xff;
}
/*
***************************************************************************
* Read and replace unprintable characters in comment with ".".
*
* IN:
* @ifd Input file descriptor.
* @comment Comment.
***************************************************************************
*/
void replace_nonprintable_char(int ifd, char *comment)
{
int i;
/* Read comment */
sa_fread(ifd, comment, MAX_COMMENT_LEN, HARD_SIZE);
comment[MAX_COMMENT_LEN - 1] = '\0';
/* Replace non printable chars */
for (i = 0; i < strlen(comment); i++) {
if (!isprint(comment[i]))
comment[i] = '.';
}
}
/*
***************************************************************************
* Fill the rectime and loctime structures with current record's date and
* time, based on current record's "number of seconds since the epoch" saved
* in file.
* For loctime (if given): The timestamp is expressed in local time.
* For rectime: The timestamp is expressed in UTC, in local time, or in the
* time of the file's creator depending on options entered by the user on the
* command line.
*
* IN:
* @l_flags Flags indicating the type of time expected by the user.
* S_F_LOCAL_TIME means time should be expressed in local time.
* S_F_TRUE_TIME means time should be expressed in time of
* file's creator.
* Default is time expressed in UTC (except for sar, where it
* is local time).
* @record_hdr Record header containing the number of seconds since the
* epoch, and the HH:MM:SS of the file's creator.
*
* OUT:
* @rectime Structure where timestamp for current record has been saved
* (in local time or in UTC depending on options used).
* @loctime If given, structure where timestamp for current record has
* been saved (expressed in local time). This field will be used
* for time comparison if options -s and/or -e have been used.
*
* RETURNS:
* 1 if an error was detected, or 0 otherwise.
***************************************************************************
*/
int sa_get_record_timestamp_struct(unsigned int l_flags, struct record_header *record_hdr,
struct tm *rectime, struct tm *loctime)
{
struct tm *ltm = NULL;
int rc = 0;
/* Fill localtime structure if given */
if (loctime) {
if ((ltm = localtime((const time_t *) &(record_hdr->ust_time))) != NULL) {
*loctime = *ltm;
}
else {
rc = 1;
}
}
/* Fill generic rectime structure */
if (PRINT_LOCAL_TIME(l_flags) && !ltm) {
/* Get local time if not already done */
ltm = localtime((const time_t *) &(record_hdr->ust_time));
}
if (!PRINT_LOCAL_TIME(l_flags) && !PRINT_TRUE_TIME(l_flags)) {
/*
* Get time in UTC
* (the user doesn't want local time nor time of file's creator).
*/
ltm = gmtime((const time_t *) &(record_hdr->ust_time));
}
if (ltm) {
/* Done even in true time mode so that we have some default values */
*rectime = *ltm;
}
else {
rc = 1;
}
if (PRINT_TRUE_TIME(l_flags)) {
/* Time of file's creator */
rectime->tm_hour = record_hdr->hour;
rectime->tm_min = record_hdr->minute;
rectime->tm_sec = record_hdr->second;
}
return rc;
}
/*
***************************************************************************
* Set current record's timestamp strings (date and time) using the time
* data saved in @rectime structure. The string may be the number of seconds
* since the epoch if flag S_F_SEC_EPOCH has been set.
*
* IN:
* @l_flags Flags indicating the type of time expected by the user.
* S_F_SEC_EPOCH means the time should be expressed in seconds
* since the epoch (01/01/1970).
* @record_hdr Record header containing the number of seconds since the
* epoch.
* @cur_date String where timestamp's date will be saved. May be NULL.
* @cur_time String where timestamp's time will be saved.
* @len Maximum length of timestamp strings.
* @rectime Structure with current timestamp (expressed in local time or
* in UTC depending on whether options -T or -t have been used
* or not) that should be broken down in date and time strings.
*
* OUT:
* @cur_date Timestamp's date string (if expected).
* @cur_time Timestamp's time string. May contain the number of seconds
* since the epoch (01-01-1970) if corresponding option has
* been used.
***************************************************************************
*/
void set_record_timestamp_string(unsigned int l_flags, struct record_header *record_hdr,
char *cur_date, char *cur_time, int len, struct tm *rectime)
{
/* Set cur_time date value */
if (PRINT_SEC_EPOCH(l_flags) && cur_date) {
sprintf(cur_time, "%ld", record_hdr->ust_time);
strcpy(cur_date, "");
}
else {
/*
* If options -T or -t have been used then cur_time is
* expressed in local time. Else it is expressed in UTC.
*/
if (cur_date) {
strftime(cur_date, len, "%Y-%m-%d", rectime);
}
if (USE_PREFD_TIME_OUTPUT(l_flags)) {
strftime(cur_time, len, "%X", rectime);
}
else {
strftime(cur_time, len, "%H:%M:%S", rectime);
}
}
}
/*
***************************************************************************
* Print contents of a special (RESTART or COMMENT) record.
*
* IN:
* @record_hdr Current record header.
* @l_flags Flags for common options.
* @tm_start Structure filled when option -s has been used.
* @tm_end Structure filled when option -e has been used.
* @rtype Record type (R_RESTART or R_COMMENT).
* @ifd Input file descriptor.
* @rectime Structure where timestamp (expressed in local time or in UTC
* depending on whether options -T/-t have been used or not) can
* be saved for current record.
* @loctime Structure where timestamp (expressed in local time) can be
* saved for current record. May be NULL.
* @file Name of file being read.
* @tab Number of tabulations to print.
* @file_magic file_magic structure filled with file magic header data.
* @file_hdr System activity file standard header.
* @act Array of activities.
* @ofmt Pointer on report output format structure.
*
* OUT:
* @rectime Structure where timestamp (expressed in local time
* or in UTC) has been saved.
* @loctime Structure where timestamp (expressed in local time)
* has been saved (if requested).
*
* RETURNS:
* 1 if the record has been successfully displayed, and 0 otherwise.
***************************************************************************
*/
int print_special_record(struct record_header *record_hdr, unsigned int l_flags,
struct tstamp *tm_start, struct tstamp *tm_end, int rtype, int ifd,
struct tm *rectime, struct tm *loctime, char *file, int tab,
struct file_magic *file_magic, struct file_header *file_hdr,
struct activity *act[], struct report_format *ofmt)
{
char cur_date[TIMESTAMP_LEN], cur_time[TIMESTAMP_LEN];
int dp = 1;
unsigned int new_cpu_nr;
/* Fill timestamp structure (rectime) for current record */
if (sa_get_record_timestamp_struct(l_flags, record_hdr, rectime, loctime))
return 0;
/* If loctime is NULL, then use rectime for comparison */
if (!loctime) {
loctime = rectime;
}
/* The record must be in the interval specified by -s/-e options */
if ((tm_start->use && (datecmp(loctime, tm_start) < 0)) ||
(tm_end->use && (datecmp(loctime, tm_end) > 0))) {
/* Will not display the special record */
dp = 0;
}
else {
/* Set date and time strings to be displayed for current record */
set_record_timestamp_string(l_flags, record_hdr,
cur_date, cur_time, TIMESTAMP_LEN, rectime);
}
if (rtype == R_RESTART) {
/* Don't forget to read the volatile activities structures */
new_cpu_nr = read_vol_act_structures(ifd, act, file, file_magic,
file_hdr->sa_vol_act_nr);
if (!dp)
return 0;
if (*ofmt->f_restart) {
(*ofmt->f_restart)(&tab, F_MAIN, cur_date, cur_time,
!PRINT_LOCAL_TIME(l_flags) &&
!PRINT_TRUE_TIME(l_flags), file_hdr,
new_cpu_nr);
}
}
else if (rtype == R_COMMENT) {
char file_comment[MAX_COMMENT_LEN];
/* Read and replace non printable chars in comment */
replace_nonprintable_char(ifd, file_comment);
if (!dp || !DISPLAY_COMMENT(l_flags))
return 0;
if (*ofmt->f_comment) {
(*ofmt->f_comment)(&tab, F_MAIN, cur_date, cur_time,
!PRINT_LOCAL_TIME(l_flags) &&
!PRINT_TRUE_TIME(l_flags), file_comment,
file_hdr);
}
}
return 1;
}
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