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showgeneric.c
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/*
** ATOP - System & Process Monitor
**
** The program 'atop' offers the possibility to view the activity of
** the system on system-level as well as process-level.
**
** This source-file contains the print-functions to visualize the calculated
** figures.
** ==========================================================================
** Author: Gerlof Langeveld
** E-mail: [email protected]
** Date: November 1996
** LINUX-port: June 2000
** --------------------------------------------------------------------------
** Copyright (C) 2000-2010 Gerlof Langeveld
**
** 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, or (at your option) any
** later version.
**
** This program is distributed in the hope that it will be useful, but
** WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
** See the GNU 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
** --------------------------------------------------------------------------
**
** $Log: showgeneric.c,v $
** Revision 1.71 2010/10/25 19:08:32 gerlof
** When the number of lines is too small for the system-level
** lines, limit the number of variable resources automatically
** to a minimum.
**
** Revision 1.70 2010/10/23 14:04:05 gerlof
** Counters for total number of running and sleep threads (JC van Winkel).
**
** Revision 1.69 2010/04/23 12:19:35 gerlof
** Modified mail-address in header.
**
** Revision 1.68 2010/04/23 09:58:11 gerlof
** Version (flag -V) handled earlier after startup.
**
** Revision 1.67 2010/04/23 07:57:32 gerlof
** Proper sorting of processes when switching from single process view
** to cumulative view (key 'u' or 'p') and vice versa.
**
** Revision 1.66 2010/04/17 17:20:26 gerlof
** Allow modifying the layout of the columns in the system lines.
**
** Revision 1.65 2010/03/16 21:13:38 gerlof
** Program and user selection can be combined with program and user
** accumulation.
**
** Revision 1.64 2010/03/16 20:18:46 gerlof
** Show in header-line if user selections and program selection are active.
**
** Revision 1.63 2010/03/16 20:08:51 gerlof
** Performance improvement: only sort system-resources once per interval.
**
** Revision 1.62 2010/03/04 10:53:01 gerlof
** Support I/O-statistics on logical volumes and MD devices.
**
** Revision 1.61 2009/12/17 10:55:07 gerlof
** *** empty log message ***
**
** Revision 1.60 2009/12/17 10:50:30 gerlof
** Allow own defined process line with key 'o' and a definition
** in the atoprc file.
**
** Revision 1.59 2009/12/17 09:03:26 gerlof
** Center message "....since boot" in status line on first screen.
**
** Revision 1.58 2009/12/17 08:55:15 gerlof
** Show messages on status line in color to draw attention.
**
** Revision 1.57 2009/12/17 08:16:14 gerlof
** Introduce branch-key to go to specific time in raw file.
**
** Revision 1.56 2009/12/12 09:06:39 gerlof
** Corrected cumulated disk I/O per user/program (JC van Winkel).
**
** Revision 1.55 2009/12/10 13:34:44 gerlof
** Show which toggle-keys are active in the header line.
**
** Revision 1.54 2009/12/10 11:55:03 gerlof
** Introduce system-wide /etc/atoprc
**
** Revision 1.53 2009/12/10 09:53:08 gerlof
** Improved display of header-line (JC van Winkel).
**
** Revision 1.52 2008/03/06 10:14:01 gerlof
** Modified help-messages.
**
** Revision 1.51 2008/02/25 13:47:21 gerlof
** Bug-solution: segmentation-fault in case of invalid regular expression.
**
** Revision 1.50 2008/01/07 11:33:58 gerlof
** Cosmetic changes.
**
** Revision 1.49 2008/01/07 10:18:24 gerlof
** Implement possibility to make summaries with atopsar.
**
** Revision 1.48 2007/03/22 10:12:17 gerlof
** Support for io counters (>= kernel 2.6.20).
**
** Revision 1.47 2007/03/21 14:22:34 gerlof
** Handle io counters maintained from 2.6.20
**
** Revision 1.46 2007/03/20 11:13:15 gerlof
** Cosmetic changes.
**
** Revision 1.45 2007/03/09 12:39:59 gerlof
** Do not allow 'N' and 'D' when kernel-patch is not installed.
**
** Revision 1.44 2007/02/13 10:31:53 gerlof
** Removal of external declarations.
**
** Revision 1.43 2007/01/18 10:41:45 gerlof
** Add support for colors.
** Add support for automatic determination of most critical resource.
**
** Revision 1.42 2006/11/13 13:48:36 gerlof
** Implement load-average counters, context-switches and interrupts.
**
** Revision 1.41 2006/04/03 05:42:35 gerlof
** *** empty log message ***
**
** Revision 1.40 2006/02/07 08:28:26 gerlof
** Improve screen-handling (less flashing) by exchanging clear()
** by werase() (contribution Folkert van Heusden).
**
** Revision 1.39 2005/11/04 14:16:16 gerlof
** Minor bug-solutions.
**
** Revision 1.38 2005/10/28 09:52:03 gerlof
** All flags/subcommands are defined as macro's.
** Subcommand 'p' has been changed to 'z' (pause).
**
** Revision 1.37 2005/10/24 06:12:17 gerlof
** Flag -L modified into -l.
**
** Revision 1.36 2005/10/21 09:50:46 gerlof
** Per-user accumulation of resource consumption.
** Possibility to send signal to process.
**
** Revision 1.35 2004/12/14 15:06:41 gerlof
** Implementation of patch-recognition for disk and network-statistics.
**
** Revision 1.34 2004/09/27 11:01:13 gerlof
** Corrected usage-info as suggested by Edelhard Becker.
**
** Revision 1.33 2004/09/13 09:19:14 gerlof
** Modify subcommands (former 's' -> 'v', 'v' -> 'V', new 's').
**
** Revision 1.32 2004/08/31 09:52:47 root
** information about underlying threads.
**
** Revision 1.31 2004/06/01 11:57:58 gerlof
** Regular expressions for selections on process-name and user-name.
**
** Revision 1.30 2003/07/07 09:27:24 gerlof
** Cleanup code (-Wall proof).
**
** Revision 1.29 2003/07/03 11:16:42 gerlof
** Implemented subcommand `r' (reset).
**
** Revision 1.28 2003/06/30 11:29:49 gerlof
** Handle configuration file ~/.atoprc
**
** Revision 1.27 2003/06/24 06:21:57 gerlof
** Limit number of system resource lines.
**
** Revision 1.26 2003/02/07 10:19:18 gerlof
** Possibility to show the version number and date.
**
** Revision 1.25 2003/01/17 07:32:16 gerlof
** Show the full command-line per process (option 'c').
**
** Revision 1.24 2002/10/30 13:47:20 gerlof
** Generate notification for statistics since boot.
**
** Revision 1.23 2002/10/08 12:00:30 gerlof
** *** empty log message ***
**
** Revision 1.22 2002/09/26 14:17:39 gerlof
** No beep when resizing the window.
**
** Revision 1.21 2002/09/26 13:52:26 gerlof
** Limit header lines by not showing disks.
**
** Revision 1.20 2002/09/18 07:15:59 gerlof
** Modified viewflag to rawreadflag.
**
** Revision 1.19 2002/09/17 13:17:39 gerlof
** Allow key 'T' to be pressed to view previous sample in raw file.
**
** Revision 1.18 2002/08/30 07:11:50 gerlof
** Minor changes to support viewing of raw atop data.
**
** Revision 1.17 2002/08/27 12:10:12 gerlof
** Allow raw data file to be written and to be read (with compression).
**
** Revision 1.16 2002/07/24 11:12:46 gerlof
** Changed to ease porting to other UNIX-platforms.
**
** Revision 1.15 2002/07/11 09:12:05 root
** Some minor updates.
**
** Revision 1.14 2002/07/10 05:00:37 root
** Counters pin/pout renamed to swin/swout (Linux conventions).
**
** Revision 1.13 2002/07/08 09:29:49 root
** Limitation for username and groupname (8 characters truncate).
**
** Revision 1.12 2002/07/02 07:14:02 gerlof
** More positions for the name of the disk-unit in the DSK-line.
**
** Revision 1.11 2002/01/22 13:40:42 gerlof
** Support for number of cpu's.
** Check if the window is large enough for the system-statistics.
**
** Revision 1.10 2001/11/30 09:09:36 gerlof
** Cosmetic chnage.
**
** Revision 1.9 2001/11/29 10:41:44 gerlof
** *** empty log message ***
**
** Revision 1.8 2001/11/29 10:38:16 gerlof
** Exit-code correctly printed.
**
** Revision 1.7 2001/11/26 11:18:45 gerlof
** Modified generic output in case that the kernel-patch is not installed.
**
** Revision 1.6 2001/11/13 08:24:50 gerlof
** Show blank columns for sockets and disk I/O when no kernel-patch installed.
**
** Revision 1.5 2001/11/07 09:19:28 gerlof
** Use /proc instead of /dev/kmem for process-level statistics.
**
** Revision 1.4 2001/10/05 13:46:32 gerlof
** Implemented paging through the process-list
**
** Revision 1.3 2001/10/04 08:47:27 gerlof
** Improved handling of error-messages
**
** Revision 1.2 2001/10/03 08:57:53 gerlof
** Improved help-screen shown in scrollable window
**
** Revision 1.1 2001/10/02 10:43:34 gerlof
** Initial revision
**
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/utsname.h>
#include <signal.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <stdarg.h>
#include <curses.h>
#include <pwd.h>
#include <grp.h>
#include <regex.h>
#include "atop.h"
#include "photoproc.h"
#include "photosyst.h"
#include "showgeneric.h"
#include "showlinux.h"
static struct pselection procsel = {"", {USERSTUB, }, {0,},
"", 0, { 0, }, "", 0, { 0, } };
static struct sselection syssel;
static void showhelp(int);
static int paused; /* boolean: currently in pause-mode */
static int fixedhead; /* boolean: fixate header-lines */
static int sysnosort; /* boolean: suppress sort of resources */
static int avgval; /* boolean: average values i.s.o. total */
static int suppressexit; /* boolean: suppress exited processes */
static char showtype = MPROCGEN;
static char showorder = MSORTCPU;
static int maxcpulines = 999; /* maximum cpu lines */
static int maxdsklines = 999; /* maximum disk lines */
static int maxmddlines = 999; /* maximum MDD lines */
static int maxlvmlines = 999; /* maximum LVM lines */
static int maxintlines = 999; /* maximum interface lines */
static int maxnfslines = 999; /* maximum nfs mount lines */
static int maxcontlines = 999; /* maximum container lines */
static short colorinfo = COLOR_GREEN;
static short coloralmost = COLOR_CYAN;
static short colorcrit = COLOR_RED;
static short colorthread = COLOR_YELLOW;
static int cumusers(struct tstat **, struct tstat *, int);
static int cumprogs(struct tstat **, struct tstat *, int);
static int cumconts(struct tstat **, struct tstat *, int);
static void accumulate(struct tstat *, struct tstat *);
static int procsuppress(struct tstat *, struct pselection *);
static void limitedlines(void);
static long getnumval(char *, long, int);
static void generic_init(void);
static int (*procsort[])(const void *, const void *) = {
[MSORTCPU&0x1f]=compcpu,
[MSORTMEM&0x1f]=compmem,
[MSORTDSK&0x1f]=compdsk,
[MSORTNET&0x1f]=compnet,
};
extern proc_printpair ownprocs[];
/*
** global: incremented by -> key and decremented by <- key
*/
int startoffset;
/*
** print the deviation-counters on process- and system-level
*/
char
generic_samp(time_t curtime, int nsecs,
struct devtstat *devtstat, struct sstat *sstat,
int nexit, unsigned int noverflow, char flag)
{
static int callnr = 0;
char *p;
register int i, curline, statline, nproc;
int firstproc = 0, plistsz, alistsz, killpid, killsig;
int lastchar;
char format1[16], format2[16], hhmm[16];
char *statmsg = NULL, statbuf[80], genline[80];
char *lastsortp, curorder, autoorder;
char buf[33];
struct passwd *pwd;
struct syscap syscap;
/*
** curlist points to the active list of tstat-pointers that
** should be displayed; ncurlist indicates the number of entries in
** this list
*/
struct tstat **curlist;
int ncurlist;
/*
** tXcumlist is a list of tstat-structs holding one entry
** per accumulated (per user or per program) group of processes
**
** Xcumlist contains the pointers to all structs in tXcumlist
**
** these lists will only be allocated 'lazy'
** only when accumulation is requested
*/
struct tstat *tpcumlist = 0; // per program accumulation
struct tstat **pcumlist = 0;
int npcum = 0;
char plastorder = 0;
struct tstat *tucumlist = 0; // per user accumulation
struct tstat **ucumlist = 0;
int nucum = 0;
char ulastorder = 0;
struct tstat *tccumlist = 0; // per container accumulation
struct tstat **ccumlist = 0;
int nccum = 0;
char clastorder = 0;
/*
** tsklist contains the pointers to all structs in tstat
** sorted on process with the related threads immediately
** following the process
**
** this list will be allocated 'lazy'
*/
struct tstat **tsklist = 0;
int ntsk = 0;
char tlastorder = 0;
char zipagain = 0;
char tdeviate = 0;
/*
** sellist contains the pointers to the structs in tstat
** that are currently selected on basis of a particular
** username (regexp), program name (regexp), container name
** or suppressed exited procs
**
** this list will be allocated 'lazy'
*/
struct tstat **sellist = 0;
int nsel = 0;
char slastorder = 0;
char threadallowed = 0;
if (callnr == 0) /* first call? */
generic_init();
callnr++;
startoffset = 0;
/*
** compute the total capacity of this system for the
** four main resources
*/
totalcap(&syscap, sstat, devtstat->procactive, devtstat->nprocactive);
/*
** sort per-cpu statistics on busy percentage
** sort per-logical-volume statistics on busy percentage
** sort per-multiple-device statistics on busy percentage
** sort per-disk statistics on busy percentage
** sort per-interface statistics on busy percentage (if known)
*/
if (!sysnosort)
{
if (sstat->cpu.nrcpu > 1 && maxcpulines > 0)
qsort(sstat->cpu.cpu, sstat->cpu.nrcpu,
sizeof sstat->cpu.cpu[0], cpucompar);
if (sstat->dsk.nlvm > 1 && maxlvmlines > 0)
qsort(sstat->dsk.lvm, sstat->dsk.nlvm,
sizeof sstat->dsk.lvm[0], diskcompar);
if (sstat->dsk.nmdd > 1 && maxmddlines > 0)
qsort(sstat->dsk.mdd, sstat->dsk.nmdd,
sizeof sstat->dsk.mdd[0], diskcompar);
if (sstat->dsk.ndsk > 1 && maxdsklines > 0)
qsort(sstat->dsk.dsk, sstat->dsk.ndsk,
sizeof sstat->dsk.dsk[0], diskcompar);
if (sstat->intf.nrintf > 1 && maxintlines > 0)
qsort(sstat->intf.intf, sstat->intf.nrintf,
sizeof sstat->intf.intf[0], intfcompar);
if (sstat->nfs.nfsmounts.nrmounts > 1 && maxnfslines > 0)
qsort(sstat->nfs.nfsmounts.nfsmnt,
sstat->nfs.nfsmounts.nrmounts,
sizeof sstat->nfs.nfsmounts.nfsmnt[0],
nfsmcompar);
if (sstat->cfs.nrcontainer > 1 && maxcontlines > 0)
qsort(sstat->cfs.cont, sstat->cfs.nrcontainer,
sizeof sstat->cfs.cont[0], contcompar);
}
/*
** loop in which the system resources and the list of active
** processes are shown; the loop will be preempted by receiving
** a timer-signal or when the trigger-button is pressed.
*/
while (1)
{
curline = 1;
/*
** prepare screen or file output for new sample
*/
if (screen)
werase(stdscr);
else
printf("\n\n");
/*
** print general headerlines
*/
convdate(curtime, format1); /* date to ascii string */
convtime(curtime, format2); /* time to ascii string */
if (screen)
attron(A_REVERSE);
int seclen = val2elapstr(nsecs, buf);
int lenavail = (screen ? COLS : linelen) -
49 - seclen - utsnodenamelen;
int len1 = lenavail / 3;
int len2 = lenavail - len1 - len1;
printg("ATOP - %s%*s%s %s%*s%c%c%c%c%c%c%c%c%c%c%c%c%c%c%*s%s"
" elapsed",
utsname.nodename, len1, "",
format1, format2, len1, "",
threadview ? MTHREAD : '-',
fixedhead ? MSYSFIXED : '-',
sysnosort ? MSYSNOSORT : '-',
deviatonly ? '-' : MALLPROC,
usecolors ? '-' : MCOLORS,
avgval ? MAVGVAL : '-',
calcpss ? MCALCPSS : '-',
suppressexit ? MSUPEXITS : '-',
procsel.userid[0] != USERSTUB ? MSELUSER : '-',
procsel.prognamesz ? MSELPROC : '-',
procsel.container[0] ? MSELCONT : '-',
procsel.pid[0] != 0 ? MSELPID : '-',
procsel.argnamesz ? MSELARG : '-',
syssel.lvmnamesz +
syssel.dsknamesz +
syssel.itfnamesz ? MSELSYS : '-',
len2, "", buf);
if (screen)
attroff(A_REVERSE);
else
printg("\n");
/*
** print cumulative system- and user-time for all processes
*/
pricumproc(sstat, devtstat, nexit, noverflow, avgval, nsecs);
if (noverflow)
{
snprintf(statbuf, sizeof statbuf,
"Only %d exited processes handled "
"-- %u skipped!", nexit, noverflow);
statmsg = statbuf;
}
curline=2;
/*
** print other lines of system-wide statistics
*/
if (showorder == MSORTAUTO)
autoorder = MSORTCPU;
else
autoorder = showorder;
curline = prisyst(sstat, curline, nsecs, avgval,
fixedhead, &syssel, &autoorder,
maxcpulines, maxdsklines, maxmddlines,
maxlvmlines, maxintlines, maxnfslines,
maxcontlines);
/*
** if system-wide statistics do not fit,
** limit the number of variable resource lines
** and try again
*/
if (screen && curline+2 > LINES)
{
curline = 2;
move(curline, 0);
clrtobot();
move(curline, 0);
limitedlines();
curline = prisyst(sstat, curline, nsecs, avgval,
fixedhead, &syssel, &autoorder,
maxcpulines, maxdsklines, maxmddlines,
maxlvmlines, maxintlines, maxnfslines,
maxcontlines);
/*
** if system-wide statistics still do not fit,
** the window is really to small
*/
if (curline+2 > LINES)
{
endwin(); // finish curses interface
fprintf(stderr,
"Not enough screen-lines available "
"(need at least %d lines)\n", curline+2);
fprintf(stderr, "Please resize window....\n");
cleanstop(1);
}
else
{
statmsg = "Number of variable resources"
" limited to fit in this window";
}
}
statline = curline;
if (screen)
move(curline, 0);
if (statmsg)
{
if (screen)
{
clrtoeol();
if (usecolors)
attron(COLOR_PAIR(COLORINFO));
}
printg(statmsg);
if (screen)
{
if (usecolors)
attroff(COLOR_PAIR(COLORINFO));
}
statmsg = NULL;
}
else
{
if (flag&RRBOOT)
{
if (screen)
{
if (usecolors)
attron(COLOR_PAIR(COLORINFO));
attron(A_BLINK);
printg("%*s", (COLS-45)/2, " ");
}
else
{
printg(" ");
}
printg("*** system and process activity "
"since boot ***");
if (screen)
{
if (usecolors)
attroff(COLOR_PAIR(COLORINFO));
attroff(A_BLINK);
}
}
}
/*
** select the required list with tasks to be shown
**
** if cumulative figures required, accumulate resource
** consumption of all processes in the current list
*/
switch (showtype)
{
case MCUMUSER:
threadallowed = 0;
if (ucumlist) /* previous list still available? */
{
free(ucumlist);
free(tucumlist);
ulastorder = 0;
}
if (deviatonly)
nproc = devtstat->nprocactive;
else
nproc = devtstat->nprocall;
/*
** allocate space for new (temporary) list with
** one entry per user (list has worst-case size)
*/
tucumlist = calloc(sizeof(struct tstat), nproc);
ucumlist = malloc(sizeof(struct tstat *) * nproc);
ptrverify(tucumlist,
"Malloc failed for %d ucum procs\n", nproc);
ptrverify(ucumlist,
"Malloc failed for %d ucum ptrs\n", nproc);
for (i=0; i < nproc; i++)
{
/* fill pointers */
ucumlist[i] = tucumlist+i;
}
nucum = cumusers(deviatonly ?
devtstat->procactive :
devtstat->procall,
tucumlist, nproc);
curlist = ucumlist;
ncurlist = nucum;
lastsortp = &ulastorder;
break;
case MCUMPROC:
threadallowed = 0;
if (pcumlist) /* previous list still available? */
{
free(pcumlist);
free(tpcumlist);
plastorder = 0;
}
if (deviatonly)
nproc = devtstat->nprocactive;
else
nproc = devtstat->nprocall;
/*
** allocate space for new (temporary) list with
** one entry per program (list has worst-case size)
*/
tpcumlist = calloc(sizeof(struct tstat), nproc);
pcumlist = malloc(sizeof(struct tstat *) * nproc);
ptrverify(tpcumlist,
"Malloc failed for %d pcum procs\n", nproc);
ptrverify(pcumlist,
"Malloc failed for %d pcum ptrs\n", nproc);
for (i=0; i < nproc; i++)
{
/* fill pointers */
pcumlist[i] = tpcumlist+i;
}
npcum = cumprogs(deviatonly ?
devtstat->procactive :
devtstat->procall,
tpcumlist, nproc);
curlist = pcumlist;
ncurlist = npcum;
lastsortp = &plastorder;
break;
case MCUMCONT:
threadallowed = 0;
if (ccumlist) /* previous list still available? */
{
free(ccumlist);
free(tccumlist);
clastorder = 0;
}
if (deviatonly)
nproc = devtstat->nprocactive;
else
nproc = devtstat->nprocall;
/*
** allocate space for new (temporary) list with
** one entry per user (list has worst-case size)
*/
tccumlist = calloc(sizeof(struct tstat), nproc);
ccumlist = malloc(sizeof(struct tstat *) * nproc);
ptrverify(tccumlist,
"Malloc failed for %d ccum procs\n", nproc);
ptrverify(ccumlist,
"Malloc failed for %d ccum ptrs\n", nproc);
for (i=0; i < nproc; i++)
{
/* fill pointers */
ccumlist[i] = tccumlist+i;
}
nccum = cumconts(deviatonly ?
devtstat->procactive :
devtstat->procall,
tccumlist, nproc);
curlist = ccumlist;
ncurlist = nccum;
lastsortp = &clastorder;
break;
default:
threadallowed = 1;
if (deviatonly && showtype != MPROCMEM &&
showorder != MSORTMEM )
{
curlist = devtstat->procactive;
ncurlist = devtstat->nprocactive;
}
else
{
curlist = devtstat->procall;
ncurlist = devtstat->nprocall;
}
lastsortp = &tlastorder;
if ( procsel.userid[0] == USERSTUB &&
!procsel.prognamesz &&
!procsel.container[0] &&
!procsel.argnamesz &&
!procsel.pid[0] &&
!suppressexit )
/* no selection wanted */
break;
/*
** selection specified for tasks:
** create new (worst case) pointer list if needed
*/
if (sellist) // remove previous list if needed
free(sellist);
sellist = malloc(sizeof(struct tstat *) * ncurlist);
ptrverify(sellist,
"Malloc failed for %d select ptrs\n", ncurlist);
for (i=nsel=0; i < ncurlist; i++)
{
if (procsuppress(*(curlist+i), &procsel))
continue;
if (curlist[i]->gen.state == 'E' &&
suppressexit )
continue;
sellist[nsel++] = curlist[i];
}
curlist = sellist;
ncurlist = nsel;
tlastorder = 0; /* new sort and zip normal view */
slastorder = 0; /* new sort and zip now */
lastsortp = &slastorder;
}
/*
** sort the list in required order
** (default CPU-consumption) and print the list
*/
if (showorder == MSORTAUTO)
curorder = autoorder;
else
curorder = showorder;
/*
** determine size of list to be displayed
*/
if (screen)
plistsz = LINES-curline-2;
else
if (threadview && threadallowed)
plistsz = devtstat->ntaskactive;
else
plistsz = ncurlist;
if (ncurlist > 0 && plistsz > 0)
{
/*
** if sorting order is changed, sort again
*/
if (*lastsortp != curorder)
{
qsort(curlist, ncurlist,
sizeof(struct tstat *),
procsort[(int)curorder&0x1f]);
*lastsortp = curorder;
zipagain = 1;
}
if (threadview && threadallowed)
{
int ntotal, j, t;
if (deviatonly && showtype != MPROCMEM &&
showorder != MSORTMEM )
ntotal = devtstat->ntaskactive;
else
ntotal = devtstat->ntaskall;
/*
** check if existing pointer list still usable
** if not, allocate new pointer list to be able
** to zip process list with references to threads
*/
if (!tsklist || ntsk != ntotal ||
tdeviate != deviatonly)
{
if (tsklist)
free(tsklist); // remove current
tsklist = malloc(sizeof(struct tstat *)
* ntotal);
ptrverify(tsklist,
"Malloc failed for %d taskptrs\n",
ntotal);
ntsk = ntotal;
tdeviate = deviatonly;
zipagain = 1;
}
else
j = ntotal;
if (zipagain)
{
struct tstat *tall = devtstat->taskall;
struct tstat *pcur;
for (i=j=0; i < ncurlist; i++)
{
pcur = curlist[i];
tsklist[j++] = pcur;
for (t = pcur - tall + 1;
t < devtstat->ntaskall &&
pcur->gen.tgid &&
pcur->gen.tgid ==
(tall+t)->gen.tgid;
t++)
{
if (deviatonly &&
showtype != MPROCMEM &&
showorder != MSORTMEM )
{
if (!(tall+t)->gen.wasinactive)
{
tsklist[j++] = tall+t;
}
}
else
tsklist[j++] = tall+t;
}
}
zipagain = 0;
}
curlist = tsklist;
ncurlist = j;
}
/*
** print the header
** first determine the column-header for the current
** sorting order of processes
*/
if (screen)
{
attron(A_REVERSE);
move(curline+1, 0);
}
priphead(firstproc/plistsz+1, (ncurlist-1)/plistsz+1,
&showtype, &curorder,
showorder == MSORTAUTO ? 1 : 0);
if (screen)
{
attroff(A_REVERSE);
clrtobot();
}
/*
** print the list
*/
priproc(curlist, firstproc, ncurlist, curline+2,
firstproc/plistsz+1, (ncurlist-1)/plistsz+1,
showtype, curorder, &syscap, nsecs, avgval);
}
alistsz = ncurlist; /* preserve size of active list */
/*
** in case of writing to a terminal, the user can also enter
** a character to switch options, etc
*/
if (screen)
{
/*
** show blinking pause-indication if necessary
*/