05f5deb97c
With the privatization of the library xalloc functions,
this patch restores top's previous internal memory logic.
This puts us back on a 3.3.1 (and earlier) footing wherein
memory allocation errors carry these implications:
. if top detected, the terminal will be restored
prior to an abnormal exit and message
. if library detected, the terminal will become
corrupted following the message
To my knowledge, neither type of memory error has ever occurred
during the nine years since top was rewritten. So the issue of
restoring the termios structure is probably moot.
3799 lines
130 KiB
C
3799 lines
130 KiB
C
/* top.c - Source file: show Linux processes */
|
||
/*
|
||
* Copyright (c) 2002-2011, by: James C. Warner
|
||
* All rights reserved. 8921 Hilloway Road
|
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* Eden Prairie, Minnesota 55347 USA
|
||
*
|
||
* This file may be used subject to the terms and conditions of the
|
||
* GNU Library General Public License Version 2, or any later version
|
||
* at your option, as published by the Free Software Foundation.
|
||
* 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 Library General Public License for more details.
|
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*/
|
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/* For contributions to this program, the author wishes to thank:
|
||
* Craig Small, <csmall@small.dropbear.id.au>
|
||
* Albert D. Cahalan, <albert@users.sf.net>
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||
*/
|
||
#include <sys/ioctl.h>
|
||
#include <sys/resource.h>
|
||
#include <sys/time.h>
|
||
#include <sys/types.h>
|
||
|
||
#include <ctype.h>
|
||
#include <curses.h>
|
||
#include <errno.h>
|
||
#include <fcntl.h>
|
||
#include <pwd.h>
|
||
#include <signal.h>
|
||
#include <stdarg.h>
|
||
#include <stdio.h>
|
||
#include <stdlib.h>
|
||
#include <string.h>
|
||
#include <term.h> // foul sob, defines all sorts of stuff...
|
||
#undef tab
|
||
#undef TTY
|
||
#include <termios.h>
|
||
#include <time.h>
|
||
#include <unistd.h>
|
||
#include <values.h>
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||
|
||
#include "proc/devname.h"
|
||
#include "proc/procps.h"
|
||
#include "proc/readproc.h"
|
||
#include "proc/sig.h"
|
||
#include "proc/sysinfo.h"
|
||
#include "proc/version.h"
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||
#include "proc/wchan.h"
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||
#include "proc/whattime.h"
|
||
|
||
#include "top.h"
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||
|
||
/*###### Miscellaneous global stuff ####################################*/
|
||
|
||
/* The original and new terminal definitions
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||
(only set when not in 'Batch' mode) */
|
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static struct termios Tty_original, // our inherited terminal definition
|
||
#ifdef TERMIOS_ONLY
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||
Tty_tweaked, // for interactive 'line' input
|
||
#endif
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||
Tty_raw; // for unsolicited input
|
||
static int Ttychanged = 0;
|
||
|
||
/* Program name used in error messages and local 'rc' file name */
|
||
static char *Myname;
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||
|
||
/* The 'local' config file support */
|
||
static char Rc_name [OURPATHSZ];
|
||
static RCF_t Rc = DEF_RCFILE;
|
||
|
||
/* The run-time acquired page stuff */
|
||
static unsigned Page_size;
|
||
static unsigned Pg2K_shft = 0;
|
||
|
||
/* SMP, Irix/Solaris mode, Linux 2.5.xx support */
|
||
/* (assume no IO-wait stats, overridden if linux 2.5.41) */
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||
static int Cpu_tot;
|
||
static float Cpu_pmax;
|
||
static const char *Cpu_States_fmts = STATES_line2x4;
|
||
|
||
/* Specific process id monitoring support */
|
||
static pid_t Monpids [MONPIDMAX] = { 0 };
|
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static int Monpidsidx = 0;
|
||
|
||
/* Current screen dimensions.
|
||
note: the number of processes displayed is tracked on a per window
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basis (see the WIN_t). Max_lines is the total number of
|
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screen rows after deducting summary information overhead. */
|
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/* Current terminal screen size. */
|
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static int Screen_cols, Screen_rows, Max_lines;
|
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|
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/* This is really the number of lines needed to display the summary
|
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information (0 - nn), but is used as the relative row where we
|
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stick the cursor between frames. */
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static int Msg_row;
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||
|
||
/* Global/Non-windows mode stuff that is NOT persistent */
|
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static int No_ksyms = -1, // set to '0' if ksym avail, '1' otherwise
|
||
PSDBopen = 0, // set to '1' if psdb opened (now postponed)
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||
Batch = 0, // batch mode, collect no input, dumb output
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Loops = -1, // number of iterations, -1 loops forever
|
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Secure_mode = 0, // set if some functionality restricted
|
||
Thread_mode = 0, // set w/ 'H' - show threads via readeither()
|
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Width_mode = 0; // set w/ 'w' - potential output override
|
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|
||
/* Unchangeable cap's stuff built just once (if at all) and
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thus NOT saved in a WIN_t's RCW_t. To accomodate 'Batch'
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mode, they begin life as empty strings so the overlying
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logic need not change ! */
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static char Cap_clr_eol [CAPBUFSIZ] = "", // global and/or static vars
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Cap_nl_clreos [CAPBUFSIZ] = "", // are initialized to zeros!
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Cap_clr_scr [CAPBUFSIZ] = "", // the assignments used here
|
||
Cap_curs_norm [CAPBUFSIZ] = "", // cost nothing but DO serve
|
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Cap_curs_huge [CAPBUFSIZ] = "", // to remind people of those
|
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Cap_curs_hide [CAPBUFSIZ] = "", // batch requirements!
|
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Cap_home [CAPBUFSIZ] = "",
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Cap_norm [CAPBUFSIZ] = "",
|
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Cap_reverse [CAPBUFSIZ] = "",
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||
Caps_off [CAPBUFSIZ] = "",
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Caps_endline [CAPBUFSIZ] = "";
|
||
#ifndef RMAN_IGNORED
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static char Cap_rmam [CAPBUFSIZ] = "",
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Cap_smam [CAPBUFSIZ] = "";
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/* set to 1 if writing to the last column would be troublesome
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(we don't distinguish the lowermost row from the other rows) */
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static int Cap_avoid_eol = 0;
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#endif
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static int Cap_can_goto = 0;
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/* Some optimization stuff, to reduce output demands...
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The Pseudo_ guys are managed by adj_geometry and frame_make. They
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are exploited in a macro and represent 90% of our optimization.
|
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The Stdout_buf is transparent to our code and regardless of whose
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buffer is used, stdout is flushed at frame end or if interactive. */
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static char *Pseudo_screen;
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static int Pseudo_row = -1;
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static size_t Pseudo_size;
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#ifndef OFF_STDIOLBF
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// less than stdout's normal buffer but with luck mostly '\n' anyway
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static char Stdout_buf[2048];
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#endif
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/* Our four WIN_t's, and which of those is considered the 'current'
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window (ie. which window is associated with any summ info displayed
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and to which window commands are directed) */
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static WIN_t Winstk [GROUPSMAX];
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static WIN_t *Curwin;
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/* Frame oriented stuff that can't remain local to any 1 function
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and/or that would be too cumbersome managed as parms,
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and/or that are simply more efficiently handled as globals
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[ 'Frames_...' (plural) stuff persists beyond 1 frame ]
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||
[ or are used in response to async signals received ! ] */
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// Frames_paused set by sig_paused(), unset by pause_pgm()
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static volatile int Frames_paused; // become a paused background job
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// Frames_resize set by do_key() & sig_resize(), unset by calibrate_fields()
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||
static volatile int Frames_resize; // time to rebuild all column headers
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static int Frames_libflags; // PROC_FILLxxx flags
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static int Frame_maxtask; // last known number of active tasks
|
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// ie. current 'size' of proc table
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||
static float Frame_etscale; // so we can '*' vs. '/' WHEN 'pcpu'
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static unsigned Frame_running, // state categories for this frame
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Frame_sleepin,
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Frame_stopped,
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Frame_zombied;
|
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static int Frame_srtflg, // the subject window's sort direction
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Frame_ctimes, // the subject window's ctimes flag
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Frame_cmdlin; // the subject window's cmdlin flag
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/* Support for 'history' processing so we can calculate %cpu */
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static int HHist_siz; // max number of HST_t structs
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static HST_t *PHist_sav, // alternating 'old/new' HST_t anchors
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*PHist_new;
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#ifndef OFF_HST_HASH
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#define HHASH_SIZ 1024
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static int HHash_one [HHASH_SIZ], // actual hash tables ( hereafter known
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HHash_two [HHASH_SIZ], // as PHash_sav/PHash_new )
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HHash_nul [HHASH_SIZ]; // 'empty' hash table image
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static int *PHash_sav = HHash_one, // alternating 'old/new' hash tables
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*PHash_new = HHash_two;
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#endif
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/*###### Sort callbacks ################################################*/
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/*
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* These happen to be coded in the enum identifier alphabetic order,
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* not the order of the enum 'pflgs' value. Also note that a callback
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* routine may serve more than one column.
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*/
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SCB_STRV(CGR, 1, cgroup, cgroup[0])
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SCB_STRV(CMD, Frame_cmdlin, cmdline, cmd)
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SCB_NUM1(COD, trs)
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SCB_NUMx(CPN, processor)
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SCB_NUM1(CPU, pcpu)
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SCB_NUM1(DAT, drs)
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SCB_NUM1(DRT, dt)
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SCB_NUM1(FLG, flags)
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SCB_NUM1(FL1, maj_flt)
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SCB_NUM1(FL2, min_flt)
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SCB_NUMx(GID, egid)
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SCB_STRS(GRP, egroup)
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SCB_NUMx(NCE, nice)
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#ifdef OOMEM_ENABLE
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SCB_NUM1(OOA, oom_adj)
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SCB_NUM1(OOM, oom_score)
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#endif
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SCB_NUMx(PGD, pgrp)
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||
SCB_NUMx(PID, tid)
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||
SCB_NUMx(PPD, ppid)
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SCB_NUMx(PRI, priority)
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SCB_NUM1(RES, resident) // also serves MEM !
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SCB_STRX(SGD, supgid)
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||
SCB_STRS(SGN, supgrp)
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SCB_NUM1(SHR, share)
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||
SCB_NUM1(SID, session)
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||
SCB_NUMx(STA, state)
|
||
SCB_NUM1(SWP, vm_swap)
|
||
SCB_NUMx(TGD, tgid)
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||
SCB_NUMx(THD, nlwp)
|
||
// also serves TM2 !
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||
static int SCB_NAME(TME) (const proc_t **P, const proc_t **Q) {
|
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if (Frame_ctimes) {
|
||
if (((*P)->cutime + (*P)->cstime + (*P)->utime + (*P)->stime)
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< ((*Q)->cutime + (*Q)->cstime + (*Q)->utime + (*Q)->stime))
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return SORT_lt;
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if (((*P)->cutime + (*P)->cstime + (*P)->utime + (*P)->stime)
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> ((*Q)->cutime + (*Q)->cstime + (*Q)->utime + (*Q)->stime))
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return SORT_gt;
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} else {
|
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if (((*P)->utime + (*P)->stime) < ((*Q)->utime + (*Q)->stime))
|
||
return SORT_lt;
|
||
if (((*P)->utime + (*P)->stime) > ((*Q)->utime + (*Q)->stime))
|
||
return SORT_gt;
|
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}
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return SORT_eq;
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||
}
|
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SCB_NUM1(TPG, tpgid)
|
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SCB_NUMx(TTY, tty)
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SCB_NUMx(UED, euid)
|
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SCB_STRS(UEN, euser)
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SCB_NUMx(URD, ruid)
|
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SCB_STRS(URN, ruser)
|
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SCB_NUMx(USD, suid)
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SCB_STRS(USN, suser)
|
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SCB_NUM1(VRT, size)
|
||
SCB_NUM1(WCH, wchan)
|
||
|
||
#ifdef OFF_HST_HASH
|
||
/* special sort for prochlp() ! -------------------------- */
|
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static int sort_HST_t (const HST_t *P, const HST_t *Q) {
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return P->pid - Q->pid;
|
||
}
|
||
#endif
|
||
|
||
/*###### Tiny useful routine(s) ########################################*/
|
||
|
||
/*
|
||
* This routine simply formats whatever the caller wants and
|
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* returns a pointer to the resulting 'const char' string... */
|
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static const char *fmtmk (const char *fmts, ...) __attribute__((format(printf,1,2)));
|
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static const char *fmtmk (const char *fmts, ...) {
|
||
static char buf[BIGBUFSIZ]; // with help stuff, our buffer
|
||
va_list va; // requirements now exceed 1k
|
||
|
||
va_start(va, fmts);
|
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vsnprintf(buf, sizeof(buf), fmts, va);
|
||
va_end(va);
|
||
return (const char *)buf;
|
||
} // end: fmtmk
|
||
|
||
|
||
/*
|
||
* This guy is just our way of avoiding the overhead of the standard
|
||
* strcat function (should the caller choose to participate) */
|
||
static inline char *scat (char *dst, const char *src) {
|
||
while (*dst) dst++;
|
||
while ((*(dst++) = *(src++)));
|
||
return --dst;
|
||
} // end: scat
|
||
|
||
|
||
#ifdef TERMIOS_ONLY
|
||
/*
|
||
* Trim line oriented input */
|
||
static char *strim (char *str) {
|
||
static const char ws[] = "\b\f\n\r\t\v\x1b\x9b"; // 0x1b + 0x9b are escape
|
||
char *p;
|
||
|
||
if ((p = strpbrk(str, ws))) *p = '\0';
|
||
return str;
|
||
} // end: strim
|
||
#endif
|
||
|
||
|
||
/*
|
||
* This guy just facilitates Batch and protects against dumb ttys
|
||
* -- we'd 'inline' him but he's only called twice per frame,
|
||
* yet used in many other locations. */
|
||
static const char *tg2 (int x, int y) {
|
||
// it's entirely possible we're trying for an invalid row...
|
||
return Cap_can_goto ? tgoto(cursor_address, x, y) : "";
|
||
} // end: tg2
|
||
|
||
/*###### Exit/Interrput routines #######################################*/
|
||
|
||
/*
|
||
* The real program end */
|
||
static void bye_bye (const char *str) NORETURN;
|
||
static void bye_bye (const char *str) {
|
||
if (Ttychanged) {
|
||
tcsetattr(STDIN_FILENO, TCSAFLUSH, &Tty_original);
|
||
putp(tg2(0, Screen_rows));
|
||
putp(Cap_curs_norm);
|
||
#ifndef RMAN_IGNORED
|
||
putp(Cap_smam);
|
||
#endif
|
||
}
|
||
fflush(stdout);
|
||
|
||
#ifdef ATEOJ_RPTSTD
|
||
{ proc_t *p;
|
||
if (!str) { fprintf(stderr,
|
||
"\n%s's Summary report:"
|
||
"\n\tProgram"
|
||
"\n\t Linux version = %u.%u.%u, %s"
|
||
"\n\t Hertz = %u (%u bytes, %u-bit time)"
|
||
"\n\t Page_size = %d, Cpu_tot = %d"
|
||
"\n\t sizeof(CPU_t) = %u, sizeof(HST_t) = %u (%u HST_t's/Page), HHist_siz = %u"
|
||
"\n\t sizeof(proc_t) = %u, sizeof(proc_t.cmd) = %u, sizeof(proc_t*) = %u"
|
||
"\n\t Frames_libflags = %08lX"
|
||
"\n\t SCREENMAX = %u, ROWMINSIZ = %u, ROWMAXSIZ = %u"
|
||
"\n\tTerminal: %s"
|
||
"\n\t device = %s, ncurses = v%s"
|
||
"\n\t max_colors = %d, max_pairs = %d"
|
||
"\n\t Cap_can_goto = %s"
|
||
"\n\t Screen_cols = %d, Screen_rows = %d"
|
||
"\n\t Max_lines = %d, most recent Pseudo_size = %u"
|
||
#ifndef OFF_STDIOLBF
|
||
"\n\t Stdout_buf = %u, BUFSIZ = %u"
|
||
#endif
|
||
"\n\tWindows and Curwin->"
|
||
"\n\t sizeof(WIN_t) = %u, GROUPSMAX = %d"
|
||
"\n\t winname = %s, grpname = %s"
|
||
#ifdef CASEUP_HEXES
|
||
"\n\t winflags = %08X, maxpflgs = %d"
|
||
#else
|
||
"\n\t winflags = %08x, maxpflgs = %d"
|
||
#endif
|
||
"\n\t fieldscur = %s, sortindx = %d"
|
||
"\n\t maxtasks = %d, varcolsz = %d, winlines = %d"
|
||
"\n\t strlen(columnhdr) = %d"
|
||
"\n"
|
||
, __func__
|
||
, LINUX_VERSION_MAJOR(linux_version_code)
|
||
, LINUX_VERSION_MINOR(linux_version_code)
|
||
, LINUX_VERSION_PATCH(linux_version_code)
|
||
, procps_version
|
||
, (unsigned)Hertz, (unsigned)sizeof(Hertz), (unsigned)sizeof(Hertz) * 8
|
||
, Page_size, Cpu_tot
|
||
, (unsigned) sizeof(CPU_t), (unsigned)sizeof(HST_t), Page_size / (unsigned)sizeof(HST_t), HHist_siz
|
||
, (unsigned)sizeof(proc_t), (unsigned)sizeof(p->cmd), (unsigned)sizeof(proc_t*)
|
||
, (long)Frames_libflags
|
||
, (unsigned)SCREENMAX, (unsigned)ROWMINSIZ, (unsigned)ROWMAXSIZ
|
||
#ifdef PRETENDNOCAP
|
||
, "dumb"
|
||
#else
|
||
, termname()
|
||
#endif
|
||
, ttyname(STDOUT_FILENO), NCURSES_VERSION
|
||
, max_colors, max_pairs
|
||
, Cap_can_goto ? "yes" : "No!"
|
||
, Screen_cols, Screen_rows
|
||
, Max_lines, (unsigned)Pseudo_size
|
||
#ifndef OFF_STDIOLBF
|
||
, (unsigned)sizeof(Stdout_buf), (unsigned)BUFSIZ
|
||
#endif
|
||
, (unsigned)sizeof(WIN_t), GROUPSMAX
|
||
, Curwin->rc.winname, Curwin->grpname
|
||
, Curwin->rc.winflags, Curwin->maxpflgs
|
||
, Curwin->rc.fieldscur, Curwin->rc.sortindx
|
||
, Curwin->rc.maxtasks, Curwin->varcolsz, Curwin->winlines
|
||
, (int)strlen(Curwin->columnhdr)
|
||
);
|
||
}
|
||
}
|
||
#endif // end: ATEOJ_RPTSTD
|
||
|
||
#ifndef OFF_HST_HASH
|
||
#ifdef ATEOJ_RPTHSH
|
||
if (!str) {
|
||
int i, j, pop, total_occupied, maxdepth, maxdepth_sav, numdepth
|
||
, cross_foot, sz = HHASH_SIZ * (unsigned)sizeof(int);
|
||
int depths[HHASH_SIZ];
|
||
|
||
for (i = 0, total_occupied = 0, maxdepth = 0; i < HHASH_SIZ; i++) {
|
||
int V = PHash_new[i];
|
||
j = 0;
|
||
if (-1 < V) {
|
||
++total_occupied;
|
||
while (-1 < V) {
|
||
V = PHist_new[V].lnk;
|
||
if (-1 < V) j++;
|
||
}
|
||
}
|
||
depths[i] = j;
|
||
if (maxdepth < j) maxdepth = j;
|
||
}
|
||
maxdepth_sav = maxdepth;
|
||
|
||
fprintf(stderr,
|
||
"\n%s's Supplementary HASH report:"
|
||
"\n\tTwo Tables providing for %d entries each + 1 extra for 'empty' image"
|
||
"\n\t%dk (%d bytes) per table, %d total bytes (including 'empty' image)"
|
||
"\n\tResults from latest hash (PHash_new + PHist_new)..."
|
||
"\n"
|
||
"\n\tTotal hashed = %d"
|
||
"\n\tLevel-0 hash entries = %d (%d%% occupied)"
|
||
"\n\tMax Depth = %d"
|
||
"\n\n"
|
||
, __func__
|
||
, HHASH_SIZ, sz / 1024, sz, sz * 3
|
||
, Frame_maxtask
|
||
, total_occupied, (total_occupied * 100) / HHASH_SIZ
|
||
, maxdepth + 1);
|
||
|
||
if (total_occupied) {
|
||
for (pop = total_occupied, cross_foot = 0; maxdepth; maxdepth--) {
|
||
for (i = 0, numdepth = 0; i < HHASH_SIZ; i++)
|
||
if (depths[i] == maxdepth) ++numdepth;
|
||
fprintf(stderr,
|
||
"\t %5d (%3d%%) hash table entries at depth %d\n"
|
||
, numdepth, (numdepth * 100) / total_occupied, maxdepth + 1);
|
||
pop -= numdepth;
|
||
cross_foot += numdepth;
|
||
if (0 == pop && cross_foot == total_occupied) break;
|
||
}
|
||
if (pop) {
|
||
fprintf(stderr, "\t %5d (%3d%%) unchained hash table entries\n"
|
||
, pop, (pop * 100) / total_occupied);
|
||
cross_foot += pop;
|
||
}
|
||
fprintf(stderr,
|
||
"\t -----\n"
|
||
"\t %5d total entries occupied\n", cross_foot);
|
||
|
||
if (maxdepth_sav) {
|
||
fprintf(stderr, "\nPIDs at max depth: ");
|
||
for (i = 0; i < HHASH_SIZ; i++)
|
||
if (depths[i] == maxdepth_sav) {
|
||
j = PHash_new[i];
|
||
fprintf(stderr, "\n\tpos %4d: %05d", i, PHist_new[j].pid);
|
||
while (-1 < j) {
|
||
j = PHist_new[j].lnk;
|
||
if (-1 < j) fprintf(stderr, ", %05d", PHist_new[j].pid);
|
||
}
|
||
}
|
||
fprintf(stderr, "\n");
|
||
}
|
||
}
|
||
}
|
||
#endif // end: ATEOJ_RPTHSH
|
||
#endif // end: OFF_HST_HASH
|
||
|
||
if (str) {
|
||
fputs(str, stderr);
|
||
exit(1);
|
||
}
|
||
putp("\n");
|
||
exit(0);
|
||
} // end: bye_bye
|
||
|
||
|
||
/*
|
||
* Standard error handler to normalize the look of all err output */
|
||
static void error_exit (const char *str) NORETURN;
|
||
static void error_exit (const char *str) {
|
||
static char buf[MEDBUFSIZ];
|
||
|
||
/* we'll use our own buffer so callers can still use fmtmk() and, yes the
|
||
leading tab is not the standard convention, but the standard is wrong
|
||
-- OUR msg won't get lost in screen clutter, like so many others! */
|
||
snprintf(buf, sizeof(buf), "\t%s: %s\n", Myname, str);
|
||
bye_bye(buf);
|
||
} // end: error_exit
|
||
|
||
|
||
/*
|
||
* Handle library errors ourselves rather than accept a default
|
||
* fprintf to stderr (since we've mucked with the termios struct) */
|
||
static void library_err (const char *fmts, ...) NORETURN;
|
||
static void library_err (const char *fmts, ...) {
|
||
static char tmp[MEDBUFSIZ];
|
||
va_list va;
|
||
|
||
va_start(va, fmts);
|
||
vsnprintf(tmp, sizeof(tmp), fmts, va);
|
||
va_end(va);
|
||
error_exit(tmp);
|
||
} // end: library_err
|
||
|
||
|
||
/*
|
||
* Called in response to Frames_paused (tku: sig_paused) */
|
||
static void pause_pgm (void) {
|
||
Frames_paused = 0;
|
||
// reset terminal (maybe)
|
||
if (Ttychanged) tcsetattr(STDIN_FILENO, TCSAFLUSH, &Tty_original);
|
||
putp(tg2(0, Screen_rows));
|
||
putp(Cap_curs_norm);
|
||
#ifndef RMAN_IGNORED
|
||
putp(Cap_smam);
|
||
#endif
|
||
fflush(stdout);
|
||
raise(SIGSTOP);
|
||
// later, after SIGCONT...
|
||
if (Ttychanged) tcsetattr(STDIN_FILENO, TCSAFLUSH, &Tty_raw);
|
||
#ifndef RMAN_IGNORED
|
||
putp(Cap_rmam);
|
||
#endif
|
||
} // end: pause_pgm
|
||
|
||
|
||
/*
|
||
* Catches all remaining signals not otherwise handled */
|
||
static void sig_abexit (int sig) NORETURN;
|
||
static void sig_abexit (int sig) {
|
||
static const char *ab_msg =
|
||
"\n\tsignal %d (%s) was caught by %s, please"
|
||
"\n\tsee http://www.debian.org/Bugs/Reporting\n";
|
||
sigset_t ss;
|
||
|
||
sigfillset(&ss);
|
||
sigprocmask(SIG_BLOCK, &ss, NULL);
|
||
bye_bye(fmtmk(ab_msg, sig, signal_number_to_name(sig), Myname));
|
||
} // end: sig_abexit
|
||
|
||
|
||
/*
|
||
* Catches:
|
||
* SIGALRM, SIGHUP, SIGINT, SIGPIPE, SIGQUIT and SIGTERM */
|
||
static void sig_endpgm (int dont_care_sig) NORETURN;
|
||
static void sig_endpgm (int dont_care_sig) {
|
||
sigset_t ss;
|
||
|
||
sigfillset(&ss);
|
||
sigprocmask(SIG_BLOCK, &ss, NULL);
|
||
bye_bye(NULL);
|
||
(void)dont_care_sig;
|
||
} // end: sig_endpgm
|
||
|
||
|
||
/*
|
||
* Catches:
|
||
* SIGTSTP, SIGTTIN and SIGTTOU */
|
||
static void sig_paused (int dont_care_sig) {
|
||
(void)dont_care_sig;
|
||
Frames_paused = 1;
|
||
} // end: sig_paused
|
||
|
||
|
||
/*
|
||
* Catches:
|
||
* SIGCONT and SIGWINCH */
|
||
static void sig_resize (int dont_care_sig) {
|
||
(void)dont_care_sig;
|
||
Frames_resize = 1;
|
||
} // end: sig_resize
|
||
|
||
/*###### Misc Color/Display support ####################################*/
|
||
|
||
/*
|
||
* Make the appropriate caps/color strings for a window/field group.
|
||
* note: we avoid the use of background color so as to maximize
|
||
* compatibility with the user's xterm settings */
|
||
static void capsmk (WIN_t *q) {
|
||
/* macro to test if a basic (non-color) capability is valid
|
||
thanks: Floyd Davidson <floyd@ptialaska.net> */
|
||
#define tIF(s) s ? s : ""
|
||
static int capsdone = 0;
|
||
|
||
// we must NOT disturb our 'empty' terminfo strings!
|
||
if (Batch) return;
|
||
|
||
// these are the unchangeable puppies, so we only do 'em once
|
||
if (!capsdone) {
|
||
STRLCPY(Cap_clr_eol, tIF(clr_eol))
|
||
STRLCPY(Cap_clr_scr, tIF(clear_screen))
|
||
// due to leading newline, only 1 function may use this (and carefully)
|
||
snprintf(Cap_nl_clreos, sizeof(Cap_nl_clreos), "\n%s", tIF(clr_eos));
|
||
STRLCPY(Cap_curs_huge, tIF(cursor_visible))
|
||
STRLCPY(Cap_curs_norm, tIF(cursor_normal))
|
||
STRLCPY(Cap_curs_hide, tIF(cursor_invisible))
|
||
STRLCPY(Cap_home, tIF(cursor_home))
|
||
STRLCPY(Cap_norm, tIF(exit_attribute_mode))
|
||
STRLCPY(Cap_reverse, tIF(enter_reverse_mode))
|
||
#ifndef RMAN_IGNORED
|
||
if (!eat_newline_glitch) {
|
||
STRLCPY(Cap_rmam, tIF(exit_am_mode))
|
||
STRLCPY(Cap_smam, tIF(enter_am_mode))
|
||
if (!*Cap_rmam || !*Cap_smam) {
|
||
*Cap_rmam = '\0';
|
||
*Cap_smam = '\0';
|
||
if (auto_right_margin)
|
||
Cap_avoid_eol = 1;
|
||
}
|
||
putp(Cap_rmam);
|
||
}
|
||
#endif
|
||
snprintf(Caps_off, sizeof(Caps_off), "%s%s", Cap_norm, tIF(orig_pair));
|
||
snprintf(Caps_endline, sizeof(Caps_endline), "%s%s", Caps_off, Cap_clr_eol);
|
||
if (tgoto(cursor_address, 1, 1)) Cap_can_goto = 1;
|
||
capsdone = 1;
|
||
}
|
||
|
||
/* the key to NO run-time costs for configurable colors -- we spend a
|
||
little time with the user now setting up our terminfo strings, and
|
||
the job's done until he/she/it has a change-of-heart */
|
||
STRLCPY(q->cap_bold, CHKw(q, View_NOBOLD) ? Cap_norm : tIF(enter_bold_mode))
|
||
if (CHKw(q, Show_COLORS) && max_colors > 0) {
|
||
STRLCPY(q->capclr_sum, tparm(set_a_foreground, q->rc.summclr))
|
||
snprintf(q->capclr_msg, sizeof(q->capclr_msg), "%s%s"
|
||
, tparm(set_a_foreground, q->rc.msgsclr), Cap_reverse);
|
||
snprintf(q->capclr_pmt, sizeof(q->capclr_pmt), "%s%s"
|
||
, tparm(set_a_foreground, q->rc.msgsclr), q->cap_bold);
|
||
snprintf(q->capclr_hdr, sizeof(q->capclr_hdr), "%s%s"
|
||
, tparm(set_a_foreground, q->rc.headclr), Cap_reverse);
|
||
snprintf(q->capclr_rownorm, sizeof(q->capclr_rownorm), "%s%s"
|
||
, Caps_off, tparm(set_a_foreground, q->rc.taskclr));
|
||
} else {
|
||
q->capclr_sum[0] = '\0';
|
||
STRLCPY(q->capclr_msg, Cap_reverse)
|
||
STRLCPY(q->capclr_pmt, q->cap_bold)
|
||
STRLCPY(q->capclr_hdr, Cap_reverse)
|
||
STRLCPY(q->capclr_rownorm, Cap_norm)
|
||
}
|
||
|
||
// composite(s), so we do 'em outside and after the if
|
||
snprintf(q->capclr_rowhigh, sizeof(q->capclr_rowhigh), "%s%s"
|
||
, q->capclr_rownorm, CHKw(q, Show_HIBOLD) ? q->cap_bold : Cap_reverse);
|
||
#undef tIF
|
||
} // end: capsmk
|
||
|
||
|
||
/*
|
||
* Show an error message (caller may include '\a' for sound) */
|
||
static void show_msg (const char *str) {
|
||
PUTT("%s%s %.*s %s%s"
|
||
, tg2(0, Msg_row)
|
||
, Curwin->capclr_msg
|
||
, Screen_cols - 2
|
||
, str
|
||
, Caps_off
|
||
, Cap_clr_eol);
|
||
fflush(stdout);
|
||
usleep(MSG_USLEEP);
|
||
} // end: show_msg
|
||
|
||
|
||
/*
|
||
* Show an input prompt + larger cursor (if possible) */
|
||
static int show_pmt (const char *str) {
|
||
int rc;
|
||
|
||
PUTT("%s%s%.*s: %s%s%s"
|
||
, tg2(0, Msg_row)
|
||
, Curwin->capclr_pmt
|
||
, Screen_cols - 3
|
||
, str
|
||
, Cap_curs_huge
|
||
, Caps_off
|
||
, Cap_clr_eol);
|
||
fflush(stdout);
|
||
// +2 for the ': ' chars we added or -1 for the cursor...
|
||
return ((rc = (int)strlen(str)+2) < Screen_cols) ? rc : Screen_cols-1;
|
||
} // end: show_pmt
|
||
|
||
|
||
/*
|
||
* Show a special coordinate message, in support of scrolling */
|
||
static inline void show_scroll (void) {
|
||
char tmp[SMLBUFSIZ];
|
||
int totpflgs = Curwin->totpflgs;
|
||
int begpflgs = Curwin->begpflg + 1;
|
||
|
||
#ifndef USE_X_COLHDR
|
||
if (CHKw(Curwin, Show_HICOLS)) {
|
||
totpflgs -= 2;
|
||
if (ENUpos(Curwin, Curwin->rc.sortindx) < Curwin->begpflg) begpflgs -= 2;
|
||
}
|
||
#endif
|
||
if (1 > totpflgs) totpflgs = 1;
|
||
if (1 > begpflgs) begpflgs = 1;
|
||
snprintf(tmp, sizeof(tmp)
|
||
, "scroll coordinates: y = %d/%d (tasks), x = %d/%d (fields)"
|
||
, Curwin->begtask + 1, Frame_maxtask
|
||
, begpflgs, totpflgs);
|
||
PUTT("%s%s %.*s%s", tg2(0, Msg_row), Caps_off, Screen_cols - 2, tmp, Cap_clr_eol);
|
||
putp(tg2(0, Msg_row));
|
||
} // end: show_scroll
|
||
|
||
|
||
/*
|
||
* Show lines with specially formatted elements, but only output
|
||
* what will fit within the current screen width.
|
||
* Our special formatting consists of:
|
||
* "some text <_delimiter_> some more text <_delimiter_>...\n"
|
||
* Where <_delimiter_> is a two byte combination consisting of a
|
||
* tilde followed by an ascii digit in the the range of 1 - 8.
|
||
* examples: ~1, ~5, ~8, etc.
|
||
* The tilde is effectively stripped and the next digit
|
||
* converted to an index which is then used to select an
|
||
* 'attribute' from a capabilities table. That attribute
|
||
* is then applied to the *preceding* substring.
|
||
* Once recognized, the delimiter is replaced with a null character
|
||
* and viola, we've got a substring ready to output! Strings or
|
||
* substrings without delimiters will receive the Cap_norm attribute.
|
||
*
|
||
* Caution:
|
||
* This routine treats all non-delimiter bytes as displayable
|
||
* data subject to our screen width marching orders. If callers
|
||
* embed non-display data like tabs or terminfo strings in our
|
||
* glob, a line will truncate incorrectly at best. Worse case
|
||
* would be truncation of an embedded tty escape sequence.
|
||
*
|
||
* Tabs must always be avoided or our efforts are wasted and
|
||
* lines will wrap. To lessen but not eliminate the risk of
|
||
* terminfo string truncation, such non-display stuff should
|
||
* be placed at the beginning of a "short" line. */
|
||
static void show_special (int interact, const char *glob) {
|
||
/* note: the following is for documentation only,
|
||
the real captab is now found in a group's WIN_t !
|
||
+------------------------------------------------------+
|
||
| char *captab[] = { : Cap's/Delim's |
|
||
| Cap_norm, Cap_norm, = \000, \001, |
|
||
| cap_bold, capclr_sum, = \002, \003, |
|
||
| capclr_msg, capclr_pmt, = \004, \005, |
|
||
| capclr_hdr, = \006, |
|
||
| capclr_rowhigh, = \007, |
|
||
| capclr_rownorm }; = \010 [octal!] |
|
||
+------------------------------------------------------+ */
|
||
/* ( pssst, after adding the termcap transitions, row may )
|
||
( exceed 300+ bytes, even in an 80x24 terminal window! ) */
|
||
char tmp[SMLBUFSIZ], lin[MEDBUFSIZ], row[LRGBUFSIZ];
|
||
char *rp, *lin_end, *sub_beg, *sub_end;
|
||
int room;
|
||
|
||
// handle multiple lines passed in a bunch
|
||
while ((lin_end = strchr(glob, '\n'))) {
|
||
// create a local copy we can extend and otherwise abuse
|
||
memcpy(lin, glob, (unsigned)(lin_end - glob));
|
||
// zero terminate this part and prepare to parse substrings
|
||
lin[lin_end - glob] = '\0';
|
||
room = Screen_cols;
|
||
sub_beg = sub_end = lin;
|
||
*(rp = row) = '\0';
|
||
|
||
while (*sub_beg) {
|
||
int ch = *sub_end;
|
||
if ('~' == ch) ch = *(sub_end + 1) - '0';
|
||
switch (ch) {
|
||
case 0: // no end delim, captab makes normal
|
||
*(sub_end + 1) = '\0'; // extend str end, then fall through
|
||
*(sub_end + 2) = '\0'; // ( +1 optimization for usual path )
|
||
case 1 ... 8:
|
||
*sub_end = '\0';
|
||
snprintf(tmp, sizeof(tmp), "%s%.*s%s", Curwin->captab[ch], room, sub_beg, Caps_off);
|
||
rp = scat(rp, tmp);
|
||
room -= (sub_end - sub_beg);
|
||
sub_beg = (sub_end += 2);
|
||
break;
|
||
default: // nothin' special, just text
|
||
++sub_end;
|
||
}
|
||
if (0 >= room) break; // skip substrings that won't fit
|
||
}
|
||
|
||
if (interact) PUTT("%s%s\n", row, Cap_clr_eol);
|
||
else PUFF("%s%s\n", row, Caps_endline);
|
||
glob = ++lin_end; // point to next line (maybe)
|
||
|
||
} // end: while 'lines'
|
||
|
||
/* If there's anything left in the glob (by virtue of no trailing '\n'),
|
||
it probably means caller wants to retain cursor position on this final
|
||
line. That, in turn, means we're interactive and so we'll just do our
|
||
'fit-to-screen' thingy while also leaving room for the cursor... */
|
||
if (*glob) PUTT("%.*s", Screen_cols -1, glob);
|
||
} // end: show_special
|
||
|
||
/*###### Low Level Memory/Keyboard support #############################*/
|
||
|
||
/*
|
||
* Handle our own memory stuff without the risk of leaving the
|
||
* user's terminal in an ugly state should things go sour. */
|
||
|
||
static void *alloc_c (size_t num) MALLOC;
|
||
static void *alloc_c (size_t num) {
|
||
void *pv;
|
||
|
||
if (!num) ++num;
|
||
if (!(pv = calloc(1, num)))
|
||
error_exit("failed memory allocate");
|
||
return pv;
|
||
} // end: alloc_c
|
||
|
||
|
||
static void *alloc_r (void *ptr, size_t num) MALLOC;
|
||
static void *alloc_r (void *ptr, size_t num) {
|
||
void *pv;
|
||
|
||
if (!num) ++num;
|
||
if (!(pv = realloc(ptr, num)))
|
||
error_exit("failed memory re-allocate");
|
||
return pv;
|
||
} // end: alloc_r
|
||
|
||
|
||
/*
|
||
* This routine isolates ALL user INPUT and ensures that we
|
||
* wont be mixing I/O from stdio and low-level read() requests */
|
||
static int chin (int ech, char *buf, unsigned cnt) {
|
||
fd_set fs;
|
||
int rc = -1;
|
||
|
||
fflush(stdout);
|
||
#ifdef TERMIOS_ONLY
|
||
if (ech) {
|
||
tcsetattr(STDIN_FILENO, TCSAFLUSH, &Tty_tweaked);
|
||
rc = read(STDIN_FILENO, buf, cnt);
|
||
tcsetattr(STDIN_FILENO, TCSAFLUSH, &Tty_raw);
|
||
} else {
|
||
FD_ZERO(&fs);
|
||
FD_SET(STDIN_FILENO, &fs);
|
||
if (0 < select(STDIN_FILENO + 1, &fs, NULL, NULL, NULL))
|
||
rc = read(STDIN_FILENO, buf, cnt);
|
||
}
|
||
#else
|
||
(void)ech;
|
||
FD_ZERO(&fs);
|
||
FD_SET(STDIN_FILENO, &fs);
|
||
if (0 < select(STDIN_FILENO + 1, &fs, NULL, NULL, NULL))
|
||
rc = read(STDIN_FILENO, buf, cnt);
|
||
#endif
|
||
|
||
// zero means EOF, might happen if we erroneously get detached from terminal
|
||
if (0 == rc) bye_bye(NULL);
|
||
|
||
// it may have been the beginning of a lengthy escape sequence
|
||
tcflush(STDIN_FILENO, TCIFLUSH);
|
||
|
||
// note: we do NOT produce a vaid 'string'
|
||
return rc;
|
||
} // end: chin
|
||
|
||
|
||
/*
|
||
* Support for single keystroke input AND escaped cursor motion keys
|
||
* note: we support more keys than we currently need, in case
|
||
* we attract new consumers in the future */
|
||
static int keyin (int init) {
|
||
static char buf12[CAPBUFSIZ], buf13[CAPBUFSIZ]
|
||
, buf14[CAPBUFSIZ], buf15[CAPBUFSIZ];
|
||
static struct {
|
||
const char *str;
|
||
int key;
|
||
} tinfo_tab[] = {
|
||
{ "\n", kbd_ENTER }, { NULL, kbd_UP }, { NULL, kbd_DOWN },
|
||
{ NULL, kbd_RIGHT }, { NULL, kbd_LEFT }, { NULL, kbd_PGUP },
|
||
{ NULL, kbd_PGDN }, { NULL, kbd_END }, { NULL, kbd_HOME },
|
||
{ NULL, kbd_BKSP }, { NULL, kbd_INS }, { NULL, kbd_DEL },
|
||
// next 4 destined to be meta + arrow keys...
|
||
{ buf12, kbd_PGUP }, { buf13, kbd_PGDN },
|
||
{ buf14, kbd_END }, { buf15, kbd_HOME },
|
||
// remainder are alternatives for above, just in case
|
||
// ( the k,j,l,h entries are meta key + vim cursor motion keys )
|
||
{ "\033\\",kbd_UP }, { "\033/", kbd_DOWN }, { "\033>", kbd_RIGHT },
|
||
{ "\033<", kbd_LEFT }, { "\033k", kbd_UP }, { "\033j", kbd_DOWN },
|
||
{ "\033l", kbd_RIGHT }, { "\033h", kbd_LEFT } };
|
||
char buf[SMLBUFSIZ], *pb;
|
||
int i;
|
||
|
||
if (init) {
|
||
#define tOk(s) s ? s : ""
|
||
tinfo_tab[1].str = tOk(key_up);
|
||
tinfo_tab[2].str = tOk(key_down);
|
||
tinfo_tab[3].str = tOk(key_right);
|
||
tinfo_tab[4].str = tOk(key_left);
|
||
tinfo_tab[5].str = tOk(key_ppage);
|
||
tinfo_tab[6].str = tOk(key_npage);
|
||
tinfo_tab[7].str = tOk(key_end);
|
||
tinfo_tab[8].str = tOk(key_home);
|
||
tinfo_tab[9].str = tOk(key_backspace);
|
||
tinfo_tab[10].str = tOk(key_ic);
|
||
tinfo_tab[11].str = tOk(key_dc);
|
||
STRLCPY(buf12, fmtmk("\033%s", tOk(key_up)));
|
||
STRLCPY(buf13, fmtmk("\033%s", tOk(key_down)));
|
||
STRLCPY(buf14, fmtmk("\033%s", tOk(key_right)));
|
||
STRLCPY(buf15, fmtmk("\033%s", tOk(key_left)));
|
||
// next is critical so returned results match bound terminfo keys
|
||
putp(tOk(keypad_xmit));
|
||
return 0;
|
||
#undef tOk
|
||
}
|
||
|
||
memset(buf, '\0', sizeof(buf));
|
||
if (1 > chin(0, buf, sizeof(buf)-1)) return 0;
|
||
|
||
/* some emulators implement 'key repeat' too well and we get duplicate
|
||
key sequences -- so we'll focus on the last escaped sequence, while
|
||
also allowing use of the meta key... */
|
||
if (!(pb = strrchr(buf, '\033'))) pb = buf;
|
||
else if (pb > buf && '\033' == *(pb - 1)) --pb;
|
||
|
||
for (i = 0; i < MAXTBL(tinfo_tab); i++)
|
||
if (!strcmp(tinfo_tab[i].str, pb))
|
||
return tinfo_tab[i].key;
|
||
|
||
// no match, so we'll return single keystrokes only
|
||
if (buf[1]) return 0;
|
||
return buf[0];
|
||
} // end: keyin
|
||
|
||
|
||
#ifdef TERMIOS_ONLY
|
||
/*
|
||
* Get line oriented interactive input from the user,
|
||
* using native tty support */
|
||
static char *linein (const char *prompt) {
|
||
static char buf[MEDBUFSIZ];
|
||
|
||
show_pmt(prompt);
|
||
memset(buf, '\0', sizeof(buf));
|
||
chin(1, buf, sizeof(buf)-1);
|
||
putp(Cap_curs_norm);
|
||
|
||
// note: we DO produce a vaid 'string'
|
||
return strim(buf);
|
||
} // end: linein
|
||
|
||
#else
|
||
/*
|
||
* Get line oriented interactive input from the user,
|
||
* going way beyond native tty support !
|
||
* Unlike native tty input support, this function provides:
|
||
* . true line editing, not just destructive backspace
|
||
* . an input limit that's sensitive to current screen dimensions
|
||
* . immediate signal response without the need to wait for '\n' */
|
||
static char *linein (const char *prompt) {
|
||
// thank goodness memmove allows the two strings to overlap
|
||
#define sqzSTR { memmove(&buf[pos], &buf[pos+1], bufMAX-pos); \
|
||
buf[sizeof(buf)-1] = '\0'; }
|
||
#define expSTR if (len+1 < bufMAX && len+beg+1 < Screen_cols) { \
|
||
memmove(&buf[pos+1], &buf[pos], bufMAX-pos); buf[pos] = ' '; }
|
||
#define logCOL (pos+1)
|
||
#define phyCOL (beg+pos+1)
|
||
#define bufMAX ((int)sizeof(buf)-2) // -1 for '\0' string delimeter
|
||
static char buf[MEDBUFSIZ+1]; // +1 for '\0' string delimeter
|
||
int beg, pos, len;
|
||
int key;
|
||
|
||
pos = 0;
|
||
beg = show_pmt(prompt);
|
||
memset(buf, '\0', sizeof(buf));
|
||
do {
|
||
len = strlen(buf);
|
||
switch (key = keyin(0)) {
|
||
case kbd_ESC:
|
||
buf[0] = '\0'; // fall through !
|
||
case kbd_ENTER:
|
||
break;
|
||
case kbd_DEL:
|
||
case kbd_DOWN:
|
||
sqzSTR
|
||
break;
|
||
case kbd_BKSP :
|
||
if (0 < pos) { --pos; sqzSTR }
|
||
break;
|
||
case kbd_INS:
|
||
case kbd_UP:
|
||
expSTR
|
||
break;
|
||
case kbd_LEFT:
|
||
if (0 < pos) --pos;
|
||
break;
|
||
case kbd_RIGHT:
|
||
if (pos < len) ++pos;
|
||
break;
|
||
case kbd_HOME:
|
||
pos = 0;
|
||
break;
|
||
case kbd_END:
|
||
pos = len;
|
||
break;
|
||
default: // what we REALLY wanted (maybe)
|
||
if (isprint(key) && logCOL < bufMAX && phyCOL < Screen_cols)
|
||
buf[pos++] = key;
|
||
break;
|
||
}
|
||
putp(fmtmk("%s%s%s", tg2(beg, Msg_row), Cap_clr_eol, buf));
|
||
putp(tg2(beg+pos, Msg_row));
|
||
} while (key && kbd_ENTER != key && kbd_ESC != key);
|
||
|
||
return buf;
|
||
#undef sqzSTR
|
||
#undef expSTR
|
||
#undef logCOL
|
||
#undef phyCOL
|
||
#undef bufMAX
|
||
} // end: linein
|
||
#endif
|
||
|
||
/*###### Small Utility routines ########################################*/
|
||
|
||
/*
|
||
* Get a float from the user */
|
||
static float get_float (const char *prompt) {
|
||
char *line;
|
||
float f;
|
||
|
||
if (!(*(line = linein(prompt)))) return -1.0;
|
||
// note: we're not allowing negative floats
|
||
if (strcspn(line, "+,.0123456789")) {
|
||
show_msg("Unacceptable floating point");
|
||
return -1.0;
|
||
}
|
||
sscanf(line, "%f", &f);
|
||
return f;
|
||
} // end: get_float
|
||
|
||
|
||
/*
|
||
* Get an integer from the user, returning INT_MIN for error */
|
||
static int get_int (const char *prompt) {
|
||
char *line;
|
||
int n;
|
||
|
||
if (!(*(line = linein(prompt)))) return INT_MIN;
|
||
// note: we've got to allow negative ints (renice)
|
||
if (strcspn(line, "-+0123456789")) {
|
||
show_msg("Unacceptable integer");
|
||
return INT_MIN;
|
||
}
|
||
sscanf(line, "%d", &n);
|
||
return n;
|
||
} // end: get_int
|
||
|
||
|
||
/*
|
||
* Do some scaling stuff.
|
||
* We'll interpret 'num' as one of the following types and
|
||
* try to format it to fit 'width'.
|
||
* SK_no (0) it's a byte count
|
||
* SK_Kb (1) it's kilobytes
|
||
* SK_Mb (2) it's megabytes
|
||
* SK_Gb (3) it's gigabytes
|
||
* SK_Tb (4) it's terabytes */
|
||
static const char *scale_num (unsigned long num, const int width, const int type) {
|
||
// kilobytes, megabytes, gigabytes, terabytes, duh!
|
||
static double scale[] = { 1024.0, 1024.0*1024, 1024.0*1024*1024, 1024.0*1024*1024*1024, 0 };
|
||
// kilo, mega, giga, tera, none
|
||
#ifdef CASEUP_SUFIX
|
||
static char nextup[] = { 'K', 'M', 'G', 'T', 0 };
|
||
#else
|
||
static char nextup[] = { 'k', 'm', 'g', 't', 0 };
|
||
#endif
|
||
static char buf[SMLBUFSIZ];
|
||
double *dp;
|
||
char *up;
|
||
|
||
// try an unscaled version first...
|
||
if (width >= snprintf(buf, sizeof(buf), "%lu", num)) return buf;
|
||
|
||
// now try successively higher types until it fits
|
||
for (up = nextup + type, dp = scale; 0 < *dp; ++dp, ++up) {
|
||
// the most accurate version
|
||
if (width >= snprintf(buf, sizeof(buf), "%.1f%c", num / *dp, *up))
|
||
return buf;
|
||
// the integer version
|
||
if (width >= snprintf(buf, sizeof(buf), "%lu%c", (unsigned long)(num / *dp), *up))
|
||
return buf;
|
||
}
|
||
// well shoot, this outta' fit...
|
||
return "?";
|
||
} // end: scale_num
|
||
|
||
|
||
/*
|
||
* Do some scaling stuff.
|
||
* format 'tics' to fit 'width'. */
|
||
static const char *scale_tics (TIC_t tics, const int width) {
|
||
#ifdef CASEUP_SUFIX
|
||
#define HH "%uH"
|
||
#define DD "%uD"
|
||
#define WW "%uW"
|
||
#else
|
||
#define HH "%uh"
|
||
#define DD "%ud"
|
||
#define WW "%uw"
|
||
#endif
|
||
static char buf[SMLBUFSIZ];
|
||
unsigned long nt; // narrow time, for speed on 32-bit
|
||
unsigned cc; // centiseconds
|
||
unsigned nn; // multi-purpose whatever
|
||
|
||
nt = (tics * 100ull) / Hertz; // up to 68 weeks of cpu time
|
||
cc = nt % 100; // centiseconds past second
|
||
nt /= 100; // total seconds
|
||
nn = nt % 60; // seconds past the minute
|
||
nt /= 60; // total minutes
|
||
if (width >= snprintf(buf, sizeof(buf), "%lu:%02u.%02u", nt, nn, cc))
|
||
return buf;
|
||
if (width >= snprintf(buf, sizeof(buf), "%lu:%02u", nt, nn))
|
||
return buf;
|
||
nn = nt % 60; // minutes past the hour
|
||
nt /= 60; // total hours
|
||
if (width >= snprintf(buf, sizeof(buf), "%lu,%02u", nt, nn))
|
||
return buf;
|
||
nn = nt; // now also hours
|
||
if (width >= snprintf(buf, sizeof(buf), HH, nn))
|
||
return buf;
|
||
nn /= 24; // now days
|
||
if (width >= snprintf(buf, sizeof(buf), DD, nn))
|
||
return buf;
|
||
nn /= 7; // now weeks
|
||
if (width >= snprintf(buf, sizeof(buf), WW, nn))
|
||
return buf;
|
||
// well shoot, this outta' fit...
|
||
return "?";
|
||
#undef HH
|
||
#undef DD
|
||
#undef WW
|
||
} // end: scale_tics
|
||
|
||
|
||
/*
|
||
* Validate the passed string as a user name or number,
|
||
* and/or update the window's 'u/U' selection stuff. */
|
||
static const char *user_certify (WIN_t *q, const char *str, char typ) {
|
||
struct passwd *pwd;
|
||
char *endp;
|
||
uid_t num;
|
||
|
||
q->usrseltyp = 0;
|
||
Monpidsidx = 0;
|
||
if (*str) {
|
||
num = (uid_t)strtoul(str, &endp, 0);
|
||
if ('\0' == *endp)
|
||
pwd = getpwuid(num);
|
||
else
|
||
pwd = getpwnam(str);
|
||
if (!pwd) return "Invalid user";
|
||
q->usrseluid = pwd->pw_uid;
|
||
q->usrseltyp = typ;
|
||
}
|
||
return NULL;
|
||
} // end: user_certify
|
||
|
||
|
||
/*
|
||
* Determine if this proc_t matches the 'u/U' selection criteria
|
||
* for a given window -- it's called from only one place, and
|
||
* likely inlined even without the directive */
|
||
static inline int user_matched (WIN_t *q, const proc_t *p) {
|
||
switch(q->usrseltyp) {
|
||
case 0: // uid selection inactive
|
||
return 1;
|
||
case 'U': // match any uid
|
||
if (p->ruid == q->usrseluid) return 1;
|
||
if (p->suid == q->usrseluid) return 1;
|
||
if (p->fuid == q->usrseluid) return 1;
|
||
// fall through...
|
||
case 'u': // match effective uid
|
||
if (p->euid == q->usrseluid) return 1;
|
||
// fall through...
|
||
default: // no match, don't display
|
||
;
|
||
}
|
||
return 0;
|
||
} // end: user_matched
|
||
|
||
/*###### Fields Management support #####################################*/
|
||
|
||
/* These are the Fieldstab.lflg values used here and in calibrate_fields.
|
||
(own identifiers as documentation and protection against changes) */
|
||
#define L_stat PROC_FILLSTAT
|
||
#define L_statm PROC_FILLMEM
|
||
#define L_status PROC_FILLSTATUS
|
||
#define L_CGROUP PROC_EDITCGRPCVT | PROC_FILLCGROUP
|
||
#define L_CMDLINE PROC_EDITCMDLCVT | PROC_FILLARG
|
||
#define L_EUSER PROC_FILLUSR
|
||
#define L_OUSER PROC_FILLSTATUS | PROC_FILLUSR
|
||
#define L_EGROUP PROC_FILLSTATUS | PROC_FILLGRP
|
||
#define L_SUPGRP PROC_FILLSTATUS | PROC_FILLSUPGRP
|
||
// make 'none' non-zero (used to be important to Frames_libflags)
|
||
#define L_NONE PROC_SPARE_1
|
||
// from either 'stat' or 'status' (preferred), via bits not otherwise used
|
||
#define L_EITHER PROC_SPARE_2
|
||
// for calibrate_fields and summary_show 1st pass
|
||
#define L_DEFAULT PROC_FILLSTAT
|
||
|
||
/* These are our gosh darn 'Fields' !
|
||
They MUST be kept in sync with pflags !!
|
||
note: for integer data, the length modifiers found in .fmts may
|
||
NOT reflect the true field type found in proc_t -- this plus
|
||
a cast when/if displayed provides minimal width protection. */
|
||
static FLD_t Fieldstab[] = {
|
||
// a temporary macro, soon to be undef'd...
|
||
#define SF(f) (QFP_t)SCB_NAME(f)
|
||
|
||
/* .head + .fmts anomolies:
|
||
entries shown with NULL are either valued at runtime (see zap_fieldstab)
|
||
or, in the case of .fmts, may represent variable width fields
|
||
.lflg anomolies:
|
||
P_UED, L_NONE - natural outgrowth of 'stat()' in readproc (euid)
|
||
P_CPU, L_stat - never filled by libproc, but requires times (pcpu)
|
||
P_CMD, L_stat - may yet require L_CMDLINE in calibrate_fields (cmd/cmdline)
|
||
L_EITHER - must L_status, else L_stat == 64-bit math (__udivdi3) on 32-bit !
|
||
.head .fmts .width .scale .sort .lflg .desc
|
||
------------ -------- ------ ------ -------- -------- ---------------------- */
|
||
{ NULL, NULL, -1, -1, SF(PID), L_NONE, "Process Id" },
|
||
{ NULL, NULL, -1, -1, SF(PPD), L_EITHER, "Parent Process pid" },
|
||
{ " UID ", "%5d ", -1, -1, SF(UED), L_NONE, "Effective User Id" },
|
||
{ "USER ", "%-8.8s ", -1, -1, SF(UEN), L_EUSER, "Effective User Name" },
|
||
{ " RUID ", "%5d ", -1, -1, SF(URD), L_status, "Real User Id" },
|
||
{ "RUSER ", "%-8.8s ", -1, -1, SF(URN), L_OUSER, "Real User Name" },
|
||
{ " SUID ", "%5d ", -1, -1, SF(USD), L_status, "Saved User Id" },
|
||
{ "SUSER ", "%-8.8s ", -1, -1, SF(USN), L_OUSER, "Saved User Name" },
|
||
{ " GID ", "%5d ", -1, -1, SF(GID), L_NONE, "Group Id" },
|
||
{ "GROUP ", "%-8.8s ", -1, -1, SF(GRP), L_EGROUP, "Group Name" },
|
||
{ NULL, NULL, -1, -1, SF(PGD), L_stat, "Process Group Id" },
|
||
{ "TTY ", "%-8.8s ", 8, -1, SF(TTY), L_stat, "Controlling Tty" },
|
||
{ NULL, NULL, -1, -1, SF(TPG), L_stat, "Tty Process Grp Id" },
|
||
{ NULL, NULL, -1, -1, SF(SID), L_stat, "Session Id" },
|
||
{ " PR ", "%3d ", -1, -1, SF(PRI), L_stat, "Priority" },
|
||
{ " NI ", "%3d ", -1, -1, SF(NCE), L_stat, "Nice Value" },
|
||
{ "nTH ", "%3d ", -1, -1, SF(THD), L_EITHER, "Number of Threads" },
|
||
{ NULL, NULL, -1, -1, SF(CPN), L_stat, "Last Used Cpu (SMP)" },
|
||
{ " %CPU ", NULL, -1, -1, SF(CPU), L_stat, "CPU Usage" },
|
||
{ " TIME ", "%6.6s ", 6, -1, SF(TME), L_stat, "CPU Time" },
|
||
{ " TIME+ ", "%9.9s ", 9, -1, SF(TME), L_stat, "CPU Time, hundredths" },
|
||
{ "%MEM ", "%#4.1f ", -1, -1, SF(RES), L_statm, "Memory Usage (RES)" },
|
||
{ " VIRT ", "%5.5s ", 5, SK_Kb, SF(VRT), L_statm, "Virtual Image (kb)" },
|
||
{ "SWAP ", "%4.4s ", 4, SK_Kb, SF(SWP), L_status, "Swapped Size (kb)" },
|
||
{ " RES ", "%4.4s ", 4, SK_Kb, SF(RES), L_statm, "Resident Size (kb)" },
|
||
{ "CODE ", "%4.4s ", 4, SK_Kb, SF(COD), L_statm, "Code Size (kb)" },
|
||
{ "DATA ", "%4.4s ", 4, SK_Kb, SF(DAT), L_statm, "Data+Stack Size (kb)" },
|
||
{ " SHR ", "%4.4s ", 4, SK_Kb, SF(SHR), L_statm, "Shared Mem Size (kb)" },
|
||
{ "nMaj ", "%4.4s ", 4, SK_no, SF(FL1), L_stat, "Major Page Faults" },
|
||
{ "nMin ", "%4.4s ", 4, SK_no, SF(FL2), L_stat, "Minor Page Faults" },
|
||
{ "nDRT ", "%4.4s ", 4, SK_no, SF(DRT), L_statm, "Dirty Pages Count" },
|
||
{ "S ", "%c ", -1, -1, SF(STA), L_EITHER, "Process Status" },
|
||
// next 2 entries are special: '.head' is variable width (see calibrate_fields)
|
||
{ "COMMAND ", NULL, -1, -1, SF(CMD), L_EITHER, "Command Name/Line" },
|
||
{ "WCHAN ", NULL, -1, -1, SF(WCH), L_stat, "Sleeping in Function" },
|
||
// next entry's special: the 0's will be replaced with '.'!
|
||
#ifdef CASEUP_HEXES
|
||
{ "Flags ", "%08lX ", -1, -1, SF(FLG), L_stat, "Task Flags <sched.h>" },
|
||
#else
|
||
{ "Flags ", "%08lx ", -1, -1, SF(FLG), L_stat, "Task Flags <sched.h>" },
|
||
#endif
|
||
// next 3 entries as P_CMD/P_WCH: '.head' must be same length -- they share varcolsz
|
||
{ "CGROUPS ", NULL, -1, -1, SF(CGR), L_CGROUP, "Control Groups" },
|
||
{ "SUPGIDS ", NULL, -1, -1, SF(SGD), L_status, "Supp Groups IDs" },
|
||
{ "SUPGRPS ", NULL, -1, -1, SF(SGN), L_SUPGRP, "Supp Groups Names" },
|
||
{ NULL, NULL, -1, -1, SF(TGD), L_status, "Thread Group Id" }
|
||
#ifdef OOMEM_ENABLE
|
||
#define L_oom PROC_FILLOOM
|
||
,{ "Adj ", "%3d ", -1, -1, SF(OOA), L_oom, "oom_adjustment (2^X)" }
|
||
,{ " Badness ", "%8d ", -1, -1, SF(OOM), L_oom, "oom_score (badness)" }
|
||
#undef L_oom
|
||
#endif
|
||
#undef SF
|
||
};
|
||
|
||
|
||
/*
|
||
* A calibrate_fields() *Helper* function to refresh the
|
||
* cached screen geometry and related variables */
|
||
static void adj_geometry (void) {
|
||
static size_t pseudo_max = 0;
|
||
static int w_set = 0, w_cols = 0, w_rows = 0;
|
||
struct winsize wz;
|
||
|
||
Screen_cols = columns; // <term.h>
|
||
Screen_rows = lines; // <term.h>
|
||
|
||
if (-1 != ioctl(STDOUT_FILENO, TIOCGWINSZ, &wz)
|
||
&& 0 < wz.ws_col && 0 < wz.ws_row) {
|
||
Screen_cols = wz.ws_col;
|
||
Screen_rows = wz.ws_row;
|
||
}
|
||
|
||
#ifndef RMAN_IGNORED
|
||
// be crudely tolerant of crude tty emulators
|
||
if (Cap_avoid_eol) Screen_cols--;
|
||
#endif
|
||
|
||
// we might disappoint some folks (but they'll deserve it)
|
||
if (SCREENMAX < Screen_cols) Screen_cols = SCREENMAX;
|
||
|
||
if (!w_set) {
|
||
if (Width_mode > 0) // -w with arg, we'll try to honor
|
||
w_cols = Width_mode;
|
||
else
|
||
if (Width_mode < 0) { // -w without arg, try environment
|
||
char *env_columns = getenv("COLUMNS"),
|
||
*env_lines = getenv("LINES"),
|
||
*ep;
|
||
if (env_columns && *env_columns) {
|
||
long t, tc = 0;
|
||
t = strtol(env_columns, &ep, 0);
|
||
if (!*ep && (t > 0) && (t <= 0x7fffffffL)) tc = t;
|
||
if (0 < tc) w_cols = (int)tc;
|
||
}
|
||
if (env_lines && *env_lines) {
|
||
long t, tr = 0;
|
||
t = strtol(env_lines, &ep, 0);
|
||
if (!*ep && (t > 0) && (t <= 0x7fffffffL)) tr = t;
|
||
if (0 < tr) w_rows = (int)tr;
|
||
}
|
||
if (!w_cols) w_cols = SCREENMAX;
|
||
if (w_cols && w_cols < W_MIN_COL) w_cols = W_MIN_COL;
|
||
if (w_rows && w_rows < W_MIN_ROW) w_rows = W_MIN_ROW;
|
||
}
|
||
w_set = 1;
|
||
}
|
||
|
||
/* keep our support for output optimization in sync with current reality
|
||
note: when we're in Batch mode, we don't really need a Pseudo_screen
|
||
and when not Batch, our buffer will contain 1 extra 'line' since
|
||
Msg_row is never represented -- but it's nice to have some space
|
||
between us and the great-beyond... */
|
||
if (Batch) {
|
||
if (w_cols) Screen_cols = w_cols;
|
||
Screen_rows = w_rows ? w_rows : MAXINT;
|
||
Pseudo_size = (sizeof(*Pseudo_screen) * ROWMAXSIZ);
|
||
} else {
|
||
if (w_cols && w_cols < Screen_cols) Screen_cols = w_cols;
|
||
if (w_rows && w_rows < Screen_rows) Screen_rows = w_rows;
|
||
Pseudo_size = (sizeof(*Pseudo_screen) * ROWMAXSIZ) * Screen_rows;
|
||
}
|
||
// we'll only grow our Pseudo_screen, never shrink it
|
||
if (pseudo_max < Pseudo_size) {
|
||
pseudo_max = Pseudo_size;
|
||
Pseudo_screen = alloc_r(Pseudo_screen, pseudo_max);
|
||
}
|
||
PSU_CLREOS(0);
|
||
if (Frames_resize) putp(Cap_clr_scr);
|
||
} // end: adj_geometry
|
||
|
||
|
||
/*
|
||
* After ensuring the intergrity of our cached screen dimensions,
|
||
* via adj_geometry(), for each visible window:
|
||
* 1) Set the number of fields/columns to display
|
||
* 2) Create the field columns heading
|
||
* 3) Set maximum width for any variable columns, if in use
|
||
* In the process, the required PROC_FILLxxx flags will be rebuilt! */
|
||
static void calibrate_fields (void) {
|
||
sigset_t newss, oldss;
|
||
FLG_t f;
|
||
char *s;
|
||
const char *h;
|
||
WIN_t *w = Curwin;
|
||
#ifdef EQUCOLHDRYES
|
||
int x, hdrmax = 0;
|
||
#endif
|
||
int i, needpsdb = 0;
|
||
int varcolcnt;
|
||
|
||
// block SIGWINCH signals while we do our thing...
|
||
sigemptyset(&newss);
|
||
sigaddset(&newss, SIGWINCH);
|
||
if (-1 == sigprocmask(SIG_BLOCK, &newss, &oldss))
|
||
error_exit(fmtmk("failed sigprocmask, SIG_BLOCK: %s", strerror(errno)));
|
||
|
||
adj_geometry();
|
||
Frames_libflags = 0;
|
||
|
||
do {
|
||
if (VIZISw(w)) {
|
||
w->hdrcaplen = 0; // really only used with USE_X_COLHDR
|
||
// build window's pflgsall array, establish upper bounds for maxpflgs
|
||
for (i = 0, w->totpflgs = 0; i < P_MAXPFLGS; i++) {
|
||
if (FLDviz(w, i)) {
|
||
f = FLDget(w, i);
|
||
#ifdef USE_X_COLHDR
|
||
w->pflgsall[w->totpflgs++] = f;
|
||
#else
|
||
if (CHKw(w, Show_HICOLS) && f == w->rc.sortindx) {
|
||
w->pflgsall[w->totpflgs++] = X_XON;
|
||
w->pflgsall[w->totpflgs++] = f;
|
||
w->pflgsall[w->totpflgs++] = X_XOF;
|
||
} else
|
||
w->pflgsall[w->totpflgs++] = f;
|
||
#endif
|
||
}
|
||
}
|
||
|
||
/* build a preliminary columns header not to exceed screen width
|
||
while accounting for a possible leading window number */
|
||
w->varcolsz = varcolcnt = 0;
|
||
*(s = w->columnhdr) = '\0';
|
||
if (Rc.mode_altscr) s = scat(s, " ");
|
||
for (i = 0; i + w->begpflg < w->totpflgs; i++) {
|
||
f = w->pflgsall[i + w->begpflg];
|
||
w->procflgs[i] = f;
|
||
#ifndef USE_X_COLHDR
|
||
if (P_MAXPFLGS <= f) continue;
|
||
#endif
|
||
h = Fieldstab[f].head;
|
||
// oops, won't fit -- we're outta here...
|
||
if (Screen_cols < ((int)(s - w->columnhdr) + (int)strlen(h))) break;
|
||
if (!Fieldstab[f].fmts) { ++varcolcnt; w->varcolsz += strlen(h) - 1; }
|
||
s = scat(s, h);
|
||
}
|
||
#ifndef USE_X_COLHDR
|
||
if (X_XON == w->procflgs[i - 1]) --i;
|
||
#endif
|
||
|
||
/* establish the final maxpflgs and prepare to grow the variable column
|
||
heading(s) via varcolsz - it may be a fib if their pflags weren't
|
||
encountered, but that's ok because they won't be displayed anyway */
|
||
w->maxpflgs = i;
|
||
w->varcolsz += Screen_cols - strlen(w->columnhdr);
|
||
if (varcolcnt) w->varcolsz = w->varcolsz / varcolcnt;
|
||
|
||
/* establish the field where all remaining fields would still
|
||
fit within screen width, including a leading window number */
|
||
*(s = w->columnhdr) = '\0';
|
||
if (Rc.mode_altscr) s = scat(s, " ");
|
||
for (i = w->totpflgs - 1; -1 < i; i--) {
|
||
f = w->pflgsall[i];
|
||
#ifndef USE_X_COLHDR
|
||
if (P_MAXPFLGS <= f) { w->endpflg = i; continue; }
|
||
#endif
|
||
h = Fieldstab[f].head;
|
||
if (Screen_cols < ((int)(s - w->columnhdr) + (int)strlen(h))) break;
|
||
s = scat(s, h);
|
||
w->endpflg = i;
|
||
}
|
||
#ifndef USE_X_COLHDR
|
||
if (X_XOF == w->pflgsall[w->endpflg]) ++w->endpflg;
|
||
#endif
|
||
|
||
/* finally, we can build the true run-time columns header, format any
|
||
variable column heading(s), if they're really being displayed, and
|
||
rebuild the all-important PROC_FILLxxx flags that will be used
|
||
until/if we're we're called again */
|
||
memset((s = w->columnhdr), 0, sizeof(w->columnhdr));
|
||
if (Rc.mode_altscr) s = scat(s, fmtmk("%d", w->winnum));
|
||
for (i = 0; i < w->maxpflgs; i++) {
|
||
f = w->procflgs[i];
|
||
#ifdef USE_X_COLHDR
|
||
if (CHKw(w, Show_HICOLS) && f == w->rc.sortindx) {
|
||
s = scat(s, fmtmk("%s%s", Caps_off, w->capclr_msg));
|
||
w->hdrcaplen += strlen(Caps_off) + strlen(w->capclr_msg);
|
||
}
|
||
#else
|
||
if (P_MAXPFLGS <= f) continue;
|
||
#endif
|
||
h = Fieldstab[f].head;
|
||
if (P_WCH == f) needpsdb = 1;
|
||
if (P_CMD == f && CHKw(w, Show_CMDLIN)) Frames_libflags |= L_CMDLINE;
|
||
if (Fieldstab[f].fmts) s = scat(s, h);
|
||
else s = scat(s, fmtmk(VARCOL_fmts, w->varcolsz, w->varcolsz, h));
|
||
Frames_libflags |= Fieldstab[w->procflgs[i]].lflg;
|
||
#ifdef USE_X_COLHDR
|
||
if (CHKw(w, Show_HICOLS) && f == w->rc.sortindx) {
|
||
s = scat(s, fmtmk("%s%s", Caps_off, w->capclr_hdr));
|
||
w->hdrcaplen += strlen(Caps_off) + strlen(w->capclr_hdr);
|
||
}
|
||
#endif
|
||
}
|
||
#ifdef EQUCOLHDRYES
|
||
// prepare to even out column header lengths...
|
||
if (hdrmax + w->hdrcaplen < (x = strlen(w->columnhdr))) hdrmax = x - w->hdrcaplen;
|
||
// must sacrifice last header positon to avoid task row abberations
|
||
w->eolcap = Caps_endline;
|
||
#else
|
||
if (Screen_cols > (int)strlen(w->columnhdr)) w->eolcap = Caps_endline;
|
||
else w->eolcap = Caps_off;
|
||
#endif
|
||
// with forest view mode, we'll need tgid & ppid...
|
||
if (CHKw(w, Show_FOREST)) Frames_libflags |= L_status;
|
||
// for 'busy' only processes, we'll need pcpu (utime & stime)...
|
||
if (!CHKw(w, Show_IDLEPS)) Frames_libflags |= L_stat;
|
||
// we must also accommodate an out of view sort field...
|
||
f = w->rc.sortindx;
|
||
Frames_libflags |= Fieldstab[f].lflg;
|
||
if (P_CMD == f && CHKw(w, Show_CMDLIN)) Frames_libflags |= L_CMDLINE;
|
||
} // end: VIZISw(w)
|
||
|
||
if (Rc.mode_altscr) w = w->next;
|
||
} while (w != Curwin);
|
||
|
||
#ifdef EQUCOLHDRYES
|
||
/* now we can finally even out column header lengths
|
||
(we're assuming entire columnhdr was memset to '\0') */
|
||
if (Rc.mode_altscr && SCREENMAX > Screen_cols)
|
||
for (i = 0; i < GROUPSMAX; i++) {
|
||
w = &Winstk[i];
|
||
if (CHKw(w, Show_TASKON))
|
||
if (hdrmax + w->hdrcaplen > (x = strlen(w->columnhdr)))
|
||
memset(&w->columnhdr[x], ' ', hdrmax + w->hdrcaplen - x);
|
||
}
|
||
#endif
|
||
|
||
// do we need the kernel symbol table (and is it already open?)
|
||
if (needpsdb) {
|
||
if (-1 == No_ksyms) {
|
||
No_ksyms = 0;
|
||
if (open_psdb_message(NULL, library_err))
|
||
No_ksyms = 1;
|
||
else
|
||
PSDBopen = 1;
|
||
}
|
||
}
|
||
|
||
// finalize/touchup the libproc PROC_FILLxxx flags for current config...
|
||
if ((Frames_libflags & L_EITHER) && !(Frames_libflags & L_stat))
|
||
Frames_libflags |= L_status;
|
||
if (!Frames_libflags) Frames_libflags = L_DEFAULT;
|
||
if (Monpidsidx) Frames_libflags |= PROC_PID;
|
||
|
||
Frames_resize = 0;
|
||
if (-1 == sigprocmask(SIG_SETMASK, &oldss, NULL))
|
||
error_exit(fmtmk("failed sigprocmask, SIG_SETMASK: %s", strerror(errno)));
|
||
} // end: calibrate_fields
|
||
|
||
|
||
/*
|
||
* Display each field represented in the current window's fieldscur
|
||
* array along with its description. Mark with bold and a leading
|
||
* asterisk those fields associated with the "on" or "active" state.
|
||
*
|
||
* Special highlighting will be accorded the "focus" field with such
|
||
* highlighting potentially extended to include the description.
|
||
*
|
||
* Below is the current Fieldstab space requirement and how
|
||
* we apportion it. The xSUFX is considered sacrificial,
|
||
* something we can reduce or do without.
|
||
* 0 1 2 3
|
||
* 12345678901234567890123456789012
|
||
* * HEADING = Longest Description!
|
||
* xPRFX ----------______________________ xSUFX
|
||
* ( xPRFX has pos 2 & 10 for 'extending' when at minimums )
|
||
*
|
||
* The first 4 screen rows are reserved for explanatory text.
|
||
* Thus, with our current 39 fields, a maximum of 6 columns and
|
||
* 1 space between columns, a tty will still remain useable under
|
||
* these extremes:
|
||
* rows cols displayed
|
||
* ---- ---- ------------------
|
||
* 11 66 xPRFX only (w/ room for +3)
|
||
* 11 198 full xPRFX + xSUFX (w/ room for +3)
|
||
* 24 22 xPRFX only (w/ room for +1)
|
||
* 24 66 full xPRFX + xSUFX (w/ room for +1)
|
||
* ( if not, the user deserves our most cryptic messages )
|
||
*/
|
||
static void display_fields (int focus, int extend) {
|
||
#define mxCOL 6
|
||
#define yRSVD 4
|
||
#define xSUFX 22
|
||
#define xPRFX (10 + xadd)
|
||
#define xTOTL (xPRFX + xSUFX)
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
int i; // utility int (a row, tot cols, ix)
|
||
int smax; // printable width of xSUFX
|
||
int xadd = 0; // spacing between data columns
|
||
int cmax = Screen_cols; // total data column width
|
||
int rmax = Screen_rows - yRSVD; // total useable rows
|
||
|
||
fflush(stdout);
|
||
i = (P_MAXPFLGS % mxCOL) ? 1 : 0;
|
||
if (rmax < i + (P_MAXPFLGS / mxCOL)) error_exit("++rows");
|
||
i = P_MAXPFLGS / rmax;
|
||
if (P_MAXPFLGS % rmax) ++i;
|
||
if (i > 1) { cmax /= i; xadd = 1; }
|
||
if (cmax > xTOTL) cmax = xTOTL;
|
||
smax = cmax - xPRFX;
|
||
if (smax < 0) error_exit("++cols");
|
||
|
||
for (i = 0; i < P_MAXPFLGS; ++i) {
|
||
char sbuf[xSUFX+1];
|
||
int b = FLDviz(w, i);
|
||
FLG_t f = FLDget(w, i);
|
||
const char *h, *e = (i == focus && extend) ? w->capclr_msg : "";
|
||
|
||
// advance past leading header spaces and prep sacrificial suffix
|
||
for (h = Fieldstab[f].head; ' ' == *h; ++h) ;
|
||
snprintf(sbuf, sizeof(sbuf), "= %s", Fieldstab[f].desc);
|
||
|
||
PUTT("%s%c%s%s %s%-7.7s%s%s%s %-*.*s%s"
|
||
, tg2((i / rmax) * cmax, (i % rmax) + yRSVD)
|
||
, b ? '*' : ' '
|
||
, b ? w->cap_bold : Cap_norm
|
||
, e
|
||
, i == focus ? w->capclr_msg : ""
|
||
, h
|
||
, Cap_norm
|
||
, b ? w->cap_bold : ""
|
||
, e
|
||
, smax, smax
|
||
, sbuf
|
||
, Cap_norm);
|
||
}
|
||
|
||
putp(Caps_off);
|
||
#undef mxCOL
|
||
#undef yRSVD
|
||
#undef xSUFX
|
||
#undef xPRFX
|
||
#undef xTOTL
|
||
} // end: display_fields
|
||
|
||
|
||
/*
|
||
* Manage all fields aspects (order/toggle/sort), for all windows. */
|
||
static void fields_utility (void) {
|
||
#define unSCRL { w->begpflg = 0; OFFw(w, Show_HICOLS); }
|
||
#define swapEM { char c; unSCRL; c = w->rc.fieldscur[i]; \
|
||
w->rc.fieldscur[i] = *p; *p = c; p = &w->rc.fieldscur[i]; }
|
||
#define spewFI { char *t; f = w->rc.sortindx; t = strchr(w->rc.fieldscur, f + FLD_OFFSET); \
|
||
if (!t) t = strchr(w->rc.fieldscur, (f + FLD_OFFSET) | 0x80); \
|
||
i = (t) ? (int)(t - w->rc.fieldscur) : 0; }
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
const char *h = NULL;
|
||
char *p = NULL;
|
||
int i, key;
|
||
FLG_t f;
|
||
|
||
putp(Cap_clr_scr);
|
||
spewFI
|
||
|
||
do {
|
||
// advance past leading spaces, if any
|
||
if (!h) for (h = Fieldstab[f].head; ' ' == *h; ++h) ;
|
||
display_fields(i, (p != NULL));
|
||
putp(Cap_home);
|
||
show_special(1, fmtmk(FIELDS_heading, w->grpname, CHKw(w, Show_FOREST) ? "forest view" : h));
|
||
|
||
switch (key = keyin(0)) {
|
||
case kbd_UP:
|
||
if (i > 0) { --i; if (p) swapEM }
|
||
break;
|
||
case kbd_DOWN:
|
||
if (i + 1 < P_MAXPFLGS) { ++i; if (p) swapEM }
|
||
break;
|
||
case kbd_LEFT:
|
||
case kbd_ENTER:
|
||
p = NULL;
|
||
break;
|
||
case kbd_RIGHT:
|
||
p = &w->rc.fieldscur[i];
|
||
break;
|
||
case kbd_HOME:
|
||
case kbd_PGUP:
|
||
if (!p) i = 0;
|
||
break;
|
||
case kbd_END:
|
||
case kbd_PGDN:
|
||
if (!p) i = P_MAXPFLGS - 1;
|
||
break;
|
||
case kbd_SPACE:
|
||
case 'd':
|
||
if (!p) { FLDtog(w, i); unSCRL }
|
||
break;
|
||
case 's':
|
||
#ifdef TREE_NORESET
|
||
if (!p && !CHKw(w, Show_FOREST)) { w->rc.sortindx = f = FLDget(w, i); h = NULL; unSCRL }
|
||
#else
|
||
if (!p) { w->rc.sortindx = f = FLDget(w, i); h = NULL; unSCRL; OFFw(w, Show_FOREST); }
|
||
#endif
|
||
break;
|
||
case 'a':
|
||
case 'w':
|
||
Curwin = w = ('a' == key) ? w->next : w->prev;
|
||
spewFI
|
||
p = NULL;
|
||
h = NULL;
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
} while (key && 'q' != key && kbd_ESC != key);
|
||
#undef unSCRL
|
||
#undef swapEM
|
||
#undef spewFI
|
||
} // end: fields_utility
|
||
|
||
|
||
/*
|
||
* This routine exists just to consolidate all the messin' around
|
||
* with Fieldstab '.head' and '.fmts' members -- until we devise
|
||
* a more elegant soultion. */
|
||
static void zap_fieldstab (void) {
|
||
static char fmts_pid[8];
|
||
static char fmts_cpu[8];
|
||
static int once;
|
||
unsigned digits;
|
||
char buf[8];
|
||
|
||
if (once) goto always;
|
||
|
||
Fieldstab[P_PID].head = " PID ";
|
||
Fieldstab[P_PID].fmts = "%5d ";
|
||
Fieldstab[P_PPD].head = " PPID ";
|
||
Fieldstab[P_PPD].fmts = "%5d ";
|
||
Fieldstab[P_PGD].head = " PGRP ";
|
||
Fieldstab[P_PGD].fmts = "%5d ";
|
||
Fieldstab[P_SID].head = " SID ";
|
||
Fieldstab[P_SID].fmts = "%5d ";
|
||
Fieldstab[P_TGD].head = " TGID ";
|
||
Fieldstab[P_TGD].fmts = "%5d ";
|
||
Fieldstab[P_TPG].head = "TPGID ";
|
||
Fieldstab[P_TPG].fmts = "%5d ";
|
||
if (5 < (digits = get_pid_digits())) {
|
||
if (10 < digits) error_exit("failed pid size test");
|
||
snprintf(fmts_pid, sizeof(fmts_pid), "%%%uu ", digits);
|
||
Fieldstab[P_PID].head = " PID " + 10 - digits;
|
||
Fieldstab[P_PID].fmts = fmts_pid;
|
||
Fieldstab[P_PPD].head = " PPID " + 10 - digits;
|
||
Fieldstab[P_PPD].fmts = fmts_pid;
|
||
Fieldstab[P_PGD].head = " PGRP " + 10 - digits;
|
||
Fieldstab[P_PGD].fmts = fmts_pid;
|
||
Fieldstab[P_SID].head = " SID " + 10 - digits;
|
||
Fieldstab[P_SID].fmts = fmts_pid;
|
||
Fieldstab[P_TGD].head = " TGID " + 10 - digits;
|
||
Fieldstab[P_TGD].fmts = fmts_pid;
|
||
Fieldstab[P_TPG].head = " TPGID " + 10 - digits;
|
||
Fieldstab[P_TPG].fmts = fmts_pid;
|
||
}
|
||
once = 1;
|
||
|
||
/*** hotplug_acclimated ***/
|
||
always:
|
||
Fieldstab[P_CPN].head = "P ";
|
||
Fieldstab[P_CPN].fmts = "%1d ";
|
||
if (1 < (digits = (unsigned)snprintf(buf, sizeof(buf), "%u", (unsigned)Cpu_tot))) {
|
||
if (5 < digits) error_exit("failed num cpus test");
|
||
snprintf(fmts_cpu, sizeof(fmts_cpu), "%%%ud ", digits);
|
||
Fieldstab[P_CPN].head = " P " + 5 - digits;
|
||
Fieldstab[P_CPN].fmts = fmts_cpu;
|
||
}
|
||
|
||
Cpu_pmax = 99.9;
|
||
Fieldstab[P_CPU].fmts = " %#4.1f ";
|
||
if (Rc.mode_irixps && Cpu_tot > 1 && !Thread_mode) {
|
||
Cpu_pmax = 100.0 * Cpu_tot;
|
||
if (Cpu_tot > 10) {
|
||
if (Cpu_pmax > 99999.0) Cpu_pmax = 99999.0;
|
||
Fieldstab[P_CPU].fmts = "%5.0f ";
|
||
} else {
|
||
if (Cpu_pmax > 999.9) Cpu_pmax = 999.9;
|
||
Fieldstab[P_CPU].fmts = "%#5.1f ";
|
||
}
|
||
}
|
||
|
||
// lastly, ensure we've got proper column headers...
|
||
calibrate_fields();
|
||
} // end: zap_fieldstab
|
||
|
||
/*###### Library Interface #############################################*/
|
||
|
||
/*
|
||
* This guy's modeled on libproc's 'five_cpu_numbers' function except
|
||
* we preserve all cpu data in our CPU_t array which is organized
|
||
* as follows:
|
||
* cpus[0] thru cpus[n] == tics for each separate cpu
|
||
* cpus[Cpu_tot] == tics from the 1st /proc/stat line */
|
||
static CPU_t *cpus_refresh (CPU_t *cpus) {
|
||
static const char err_read[] = "failed /proc/stat read";
|
||
static FILE *fp = NULL;
|
||
static int sav_cpus = -1;
|
||
char buf[MEDBUFSIZ]; // enough for /proc/stat CPU line (not the intr line)
|
||
int i;
|
||
|
||
/*** hotplug_acclimated ***/
|
||
if (sav_cpus != smp_num_cpus) {
|
||
Cpu_tot = sav_cpus = smp_num_cpus;
|
||
zap_fieldstab();
|
||
if (fp) { fclose(fp); fp = NULL; }
|
||
if (cpus) { free(cpus); cpus = NULL; }
|
||
}
|
||
|
||
/* by opening this file once, we'll avoid the hit on minor page faults
|
||
(sorry Linux, but you'll have to close it for us) */
|
||
if (!fp) {
|
||
if (!(fp = fopen("/proc/stat", "r")))
|
||
error_exit(fmtmk("failed /proc/stat open: %s", strerror(errno)));
|
||
/* note: we allocate one more CPU_t than Cpu_tot so that the last slot
|
||
can hold tics representing the /proc/stat cpu summary (the first
|
||
line read) -- that slot supports our View_CPUSUM toggle */
|
||
cpus = alloc_c((1 + Cpu_tot) * sizeof(CPU_t));
|
||
}
|
||
rewind(fp);
|
||
fflush(fp);
|
||
|
||
// first value the last slot with the cpu summary line
|
||
cpus[Cpu_tot].x = cpus[Cpu_tot].y = cpus[Cpu_tot].z = 0;
|
||
// FIXME: can't tell above by kernel version number
|
||
if (!fgets(buf, sizeof(buf), fp)) error_exit(err_read);
|
||
if (4 > sscanf(buf, "cpu %Lu %Lu %Lu %Lu %Lu %Lu %Lu %Lu"
|
||
, &cpus[Cpu_tot].u, &cpus[Cpu_tot].n, &cpus[Cpu_tot].s, &cpus[Cpu_tot].i
|
||
, &cpus[Cpu_tot].w, &cpus[Cpu_tot].x, &cpus[Cpu_tot].y, &cpus[Cpu_tot].z))
|
||
error_exit(err_read);
|
||
// and just in case we're 2.2.xx compiled without SMP support...
|
||
if (1 == Cpu_tot)
|
||
memcpy(cpus, &cpus[1], sizeof(CPU_t));
|
||
// now value each separate cpu's tics
|
||
for (i = 0; i < Cpu_tot; i++) {
|
||
#ifdef PRETEND4CPUS
|
||
rewind(fp);
|
||
fgets(buf, sizeof(buf), fp);
|
||
#endif
|
||
if (!fgets(buf, sizeof(buf), fp)) error_exit(err_read);
|
||
cpus[i].x = cpus[i].y = cpus[i].z = 0;
|
||
// FIXME: can't tell above by kernel version number
|
||
if (4 > sscanf(buf, "cpu%u %Lu %Lu %Lu %Lu %Lu %Lu %Lu %Lu", &cpus[i].id
|
||
, &cpus[i].u, &cpus[i].n, &cpus[i].s, &cpus[i].i
|
||
, &cpus[i].w, &cpus[i].x, &cpus[i].y, &cpus[i].z)) {
|
||
error_exit(err_read);
|
||
}
|
||
#ifdef PRETEND4CPUS
|
||
cpus[i].id = i;
|
||
#endif
|
||
}
|
||
return cpus;
|
||
} // end: cpus_refresh
|
||
|
||
|
||
#ifdef OFF_HST_HASH
|
||
/*
|
||
* Binary Search for HST_t's put/get support */
|
||
|
||
static inline HST_t *hstbsrch (HST_t *hst, int max, int pid) {
|
||
int mid, min = 0;
|
||
|
||
while (min <= max) {
|
||
mid = (min + max) / 2;
|
||
if (pid < hst[mid].pid) max = mid - 1;
|
||
else if (pid > hst[mid].pid) min = mid + 1;
|
||
else return &hst[mid];
|
||
}
|
||
return NULL;
|
||
} // end: hstbsrch
|
||
|
||
#else
|
||
/*
|
||
* Hashing functions for HST_t's put/get support
|
||
* (not your normal 'chaining', those damn HST_t's might move!) */
|
||
|
||
#define _HASH_(K) (K & (HHASH_SIZ - 1))
|
||
|
||
static inline HST_t *hstget (int pid) {
|
||
int V = PHash_sav[_HASH_(pid)];
|
||
|
||
while (-1 < V) {
|
||
if (PHist_sav[V].pid == pid) return &PHist_sav[V];
|
||
V = PHist_sav[V].lnk; }
|
||
return NULL;
|
||
} // end: hstget
|
||
|
||
|
||
static inline void hstput (unsigned idx) {
|
||
int V = _HASH_(PHist_new[idx].pid);
|
||
|
||
PHist_new[idx].lnk = PHash_new[V];
|
||
PHash_new[V] = idx;
|
||
} // end: hstput
|
||
|
||
#undef _HASH_
|
||
#endif
|
||
|
||
/*
|
||
* Refresh procs *Helper* function to eliminate yet one more need
|
||
* to loop through our darn proc_t table. He's responsible for:
|
||
* 1) calculating the elapsed time since the previous frame
|
||
* 2) counting the number of tasks in each state (run, sleep, etc)
|
||
* 3) maintaining the HST_t's and priming the proc_t pcpu field
|
||
* 4) establishing the total number tasks for this frame */
|
||
static void prochlp (proc_t *this) {
|
||
#ifdef OFF_HST_HASH
|
||
static unsigned maxt_sav = 0; // prior frame's max tasks
|
||
#endif
|
||
TIC_t tics;
|
||
HST_t *h;
|
||
|
||
if (!this) {
|
||
static struct timeval oldtimev;
|
||
struct timeval timev;
|
||
struct timezone timez;
|
||
float et;
|
||
void *v;
|
||
|
||
gettimeofday(&timev, &timez);
|
||
et = (timev.tv_sec - oldtimev.tv_sec)
|
||
+ (float)(timev.tv_usec - oldtimev.tv_usec) / 1000000.0;
|
||
oldtimev.tv_sec = timev.tv_sec;
|
||
oldtimev.tv_usec = timev.tv_usec;
|
||
|
||
// if in Solaris mode, adjust our scaling for all cpus
|
||
Frame_etscale = 100.0f / ((float)Hertz * (float)et * (Rc.mode_irixps ? 1 : Cpu_tot));
|
||
#ifdef OFF_HST_HASH
|
||
maxt_sav = Frame_maxtask;
|
||
#endif
|
||
Frame_maxtask = Frame_running = Frame_sleepin = Frame_stopped = Frame_zombied = 0;
|
||
|
||
// prep for saving this frame's HST_t's (and reuse mem each time around)
|
||
v = PHist_sav;
|
||
PHist_sav = PHist_new;
|
||
PHist_new = v;
|
||
#ifdef OFF_HST_HASH
|
||
// prep for binary search by sorting the last frame's HST_t's
|
||
qsort(PHist_sav, maxt_sav, sizeof(HST_t), (QFP_t)sort_HST_t);
|
||
#else
|
||
v = PHash_sav;
|
||
PHash_sav = PHash_new;
|
||
PHash_new = v;
|
||
memcpy(PHash_new, HHash_nul, sizeof(HHash_nul));
|
||
#endif
|
||
return;
|
||
}
|
||
|
||
switch (this->state) {
|
||
case 'R':
|
||
Frame_running++;
|
||
break;
|
||
case 'S':
|
||
case 'D':
|
||
Frame_sleepin++;
|
||
break;
|
||
case 'T':
|
||
Frame_stopped++;
|
||
break;
|
||
case 'Z':
|
||
Frame_zombied++;
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
|
||
if (Frame_maxtask+1 >= HHist_siz) {
|
||
HHist_siz = HHist_siz * 5 / 4 + 100;
|
||
PHist_sav = alloc_r(PHist_sav, sizeof(HST_t) * HHist_siz);
|
||
PHist_new = alloc_r(PHist_new, sizeof(HST_t) * HHist_siz);
|
||
}
|
||
|
||
/* calculate time in this process; the sum of user time (utime) and
|
||
system time (stime) -- but PLEASE dont waste time and effort on
|
||
calcs and saves that go unused, like the old top! */
|
||
PHist_new[Frame_maxtask].pid = this->tid;
|
||
PHist_new[Frame_maxtask].tics = tics = (this->utime + this->stime);
|
||
|
||
#ifdef OFF_HST_HASH
|
||
// find matching entry from previous frame and make ticks elapsed
|
||
if ((h = hstbsrch(PHist_sav, maxt_sav - 1, this->tid))) tics -= h->tics;
|
||
#else
|
||
// hash & save for the next frame
|
||
hstput(Frame_maxtask);
|
||
// find matching entry from previous frame and make ticks elapsed
|
||
if ((h = hstget(this->tid))) tics -= h->tics;
|
||
#endif
|
||
|
||
/* we're just saving elapsed tics, to be converted into %cpu if
|
||
this task wins it's displayable screen row lottery... */
|
||
this->pcpu = tics;
|
||
|
||
// shout this to the world with the final call (or us the next time in)
|
||
Frame_maxtask++;
|
||
} // end: prochlp
|
||
|
||
|
||
/*
|
||
* This guy's modeled on libproc's 'readproctab' function except
|
||
* we reuse and extend any prior proc_t's. He's been customized
|
||
* for our specific needs and to avoid the use of <stdarg.h> */
|
||
static void procs_refresh (void) {
|
||
#define n_used Frame_maxtask // maintained by prochlp()
|
||
static proc_t **private_ppt; // our base proc_t ptr table
|
||
static int n_alloc = 0; // size of our private_ppt
|
||
static int n_saved = 0; // last window ppt size
|
||
proc_t *ptask;
|
||
PROCTAB* PT;
|
||
int i;
|
||
proc_t*(*read_something)(PROCTAB*, proc_t*);
|
||
|
||
prochlp(NULL); // prep for a new frame
|
||
if (NULL == (PT = openproc(Frames_libflags, Monpids)))
|
||
error_exit(fmtmk("failed openproc: %s", strerror(errno)));
|
||
read_something = Thread_mode ? readeither : readproc;
|
||
|
||
for (;;) {
|
||
if (n_used == n_alloc) {
|
||
n_alloc = 10 + ((n_alloc * 5) / 4); // grow by over 25%
|
||
private_ppt = alloc_r(private_ppt, sizeof(proc_t*) * n_alloc);
|
||
// ensure NULL pointers for the additional memory just acquired
|
||
memset(private_ppt + n_used, 0, sizeof(proc_t*) * (n_alloc - n_used));
|
||
}
|
||
// on the way to n_alloc, the library will allocate the underlying
|
||
// proc_t storage whenever our private_ppt[] pointer is NULL...
|
||
if (!(ptask = read_something(PT, private_ppt[n_used]))) break;
|
||
prochlp((private_ppt[n_used] = ptask)); // tally this proc_t
|
||
}
|
||
|
||
closeproc(PT);
|
||
|
||
// lastly, refresh each window's proc pointers table...
|
||
if (n_saved == n_alloc)
|
||
for (i = 0; i < GROUPSMAX; i++)
|
||
memcpy(Winstk[i].ppt, private_ppt, sizeof(proc_t*) * n_used);
|
||
else {
|
||
n_saved = n_alloc;
|
||
for (i = 0; i < GROUPSMAX; i++) {
|
||
Winstk[i].ppt = alloc_r(Winstk[i].ppt, sizeof(proc_t*) * n_alloc);
|
||
memcpy(Winstk[i].ppt, private_ppt, sizeof(proc_t*) * n_used);
|
||
}
|
||
}
|
||
#undef n_used
|
||
} // end: procs_refresh
|
||
|
||
|
||
/*
|
||
* This serves as our interface to the memory & cpu count (sysinfo)
|
||
* portion of libproc. In support of those hotpluggable resources,
|
||
* the sampling frequencies are reduced so as to minimize overhead.
|
||
* We'll strive to verify the number of cpus every 5 minutes and the
|
||
* memory availability/usage every 3 seconds. */
|
||
static void sysinfo_refresh (int forced) {
|
||
static time_t mem_secs, cpu_secs;
|
||
time_t cur_secs;
|
||
|
||
if (forced)
|
||
mem_secs = cpu_secs = 0;
|
||
time(&cur_secs);
|
||
|
||
/*** hotplug_acclimated ***/
|
||
if (3 <= cur_secs - mem_secs) {
|
||
meminfo();
|
||
mem_secs = cur_secs;
|
||
}
|
||
#ifndef PRETEND4CPUS
|
||
/*** hotplug_acclimated ***/
|
||
if (300 <= cur_secs - cpu_secs) {
|
||
cpuinfo();
|
||
cpu_secs = cur_secs;
|
||
}
|
||
#endif
|
||
} // end: sysinfo_refresh
|
||
|
||
/*###### Startup routines ##############################################*/
|
||
|
||
/*
|
||
* No matter what *they* say, we handle the really really BIG and
|
||
* IMPORTANT stuff upon which all those lessor functions depend! */
|
||
static void before (char *me) {
|
||
struct sigaction sa;
|
||
int i;
|
||
|
||
// setup our program name -- big!
|
||
Myname = strrchr(me, '/');
|
||
if (Myname) ++Myname; else Myname = me;
|
||
|
||
// establish cpu particulars -- even bigger!
|
||
#ifdef PRETEND4CPUS
|
||
smp_num_cpus = 4;
|
||
#endif
|
||
Cpu_tot = smp_num_cpus;
|
||
if (linux_version_code > LINUX_VERSION(2, 5, 41))
|
||
Cpu_States_fmts = STATES_line2x5;
|
||
if (linux_version_code >= LINUX_VERSION(2, 6, 0))
|
||
Cpu_States_fmts = STATES_line2x6;
|
||
if (linux_version_code >= LINUX_VERSION(2, 6, 11))
|
||
Cpu_States_fmts = STATES_line2x7;
|
||
|
||
// get virtual page stuff -- nearing huge!
|
||
Page_size = getpagesize();
|
||
i = Page_size;
|
||
while(i > 1024) { i >>= 1; Pg2K_shft++; }
|
||
|
||
#ifndef OFF_HST_HASH
|
||
// prep for HST_t's put/get hashing optimizations
|
||
for (i = 0; i < HHASH_SIZ; i++) HHash_nul[i] = -1;
|
||
memcpy(HHash_one, HHash_nul, sizeof(HHash_nul));
|
||
memcpy(HHash_two, HHash_nul, sizeof(HHash_nul));
|
||
#endif
|
||
|
||
#ifndef SIGRTMAX // not available on hurd, maybe others too
|
||
#define SIGRTMAX 32
|
||
#endif
|
||
// lastly, establish a robust signals environment
|
||
sigemptyset(&sa.sa_mask);
|
||
sa.sa_flags = SA_RESTART;
|
||
for (i = SIGRTMAX; i; i--) {
|
||
switch (i) {
|
||
case SIGALRM: case SIGHUP: case SIGINT:
|
||
case SIGPIPE: case SIGQUIT: case SIGTERM:
|
||
sa.sa_handler = sig_endpgm;
|
||
break;
|
||
case SIGTSTP: case SIGTTIN: case SIGTTOU:
|
||
sa.sa_handler = sig_paused;
|
||
break;
|
||
case SIGCONT: case SIGWINCH:
|
||
sa.sa_handler = sig_resize;
|
||
break;
|
||
default:
|
||
sa.sa_handler = sig_abexit;
|
||
break;
|
||
}
|
||
sigaction(i, &sa, NULL);
|
||
}
|
||
} // end: before
|
||
|
||
|
||
/*
|
||
* Build the local RC file name then try to read both of 'em.
|
||
* 'SYS_RCFILESPEC' contains two lines consisting of the secure
|
||
* mode switch and an update interval. It's presence limits what
|
||
* ordinary users are allowed to do.
|
||
* 'Rc_name' contains multiple lines - 2 global + 3 per window.
|
||
* line 1: an eyecatcher and creating program/alias name
|
||
* line 2: an id, Mode_altcsr, Mode_irixps, Delay_time and Curwin.
|
||
* If running in secure mode via the /etc/rcfile,
|
||
* the 'delay time' will be ignored except for root.
|
||
* For each of the 4 windows:
|
||
* line a: contains w->winname, fieldscur
|
||
* line b: contains w->winflags, sortindx, maxtasks
|
||
* line c: contains w->summclr, msgsclr, headclr, taskclr */
|
||
static void configs_read (void) {
|
||
#ifndef RCFILE_NOERR
|
||
static const char err_rcid[] = "incompatible rcfile, you should delete '%s'";
|
||
static const char err_flds[] = "window entry #%d corrupt, please delete '%s'";
|
||
#else
|
||
RCF_t rcdef = DEF_RCFILE;
|
||
#endif
|
||
float tmp_delay = DEF_DELAY;
|
||
char fbuf[LRGBUFSIZ];
|
||
FILE *fp;
|
||
int i, x;
|
||
char id;
|
||
|
||
if (!getenv("HOME")) snprintf(Rc_name, sizeof(Rc_name), ".%src", Myname);
|
||
else snprintf(Rc_name, sizeof(Rc_name), "%s/.%src", getenv("HOME"), Myname);
|
||
|
||
fp = fopen(SYS_RCFILESPEC, "r");
|
||
if (fp) {
|
||
fbuf[0] = '\0';
|
||
fgets(fbuf, sizeof(fbuf), fp); // sys rc file, line 1
|
||
if (strchr(fbuf, 's')) Secure_mode = 1;
|
||
fbuf[0] = '\0';
|
||
fgets(fbuf, sizeof(fbuf), fp); // sys rc file, line 2
|
||
sscanf(fbuf, "%f", &Rc.delay_time);
|
||
fclose(fp);
|
||
}
|
||
|
||
fp = fopen(Rc_name, "r");
|
||
if (fp) {
|
||
fbuf[0] = '\0';
|
||
fgets(fbuf, sizeof(fbuf), fp); // ignore eyecatcher
|
||
if (5 != (fscanf(fp, "Id:%c, "
|
||
"Mode_altscr=%d, Mode_irixps=%d, Delay_time=%f, Curwin=%d\n"
|
||
, &id, &Rc.mode_altscr, &Rc.mode_irixps, &tmp_delay, &i))
|
||
|| RCF_VERSION_ID != id)
|
||
#ifndef RCFILE_NOERR
|
||
error_exit(fmtmk(err_rcid, Rc_name));
|
||
#else
|
||
goto just_default_em;
|
||
#endif
|
||
// you saw that, right? (fscanf stickin' it to 'i')
|
||
Curwin = &Winstk[i];
|
||
|
||
for (i = 0 ; i < GROUPSMAX; i++) {
|
||
// note: "fieldscur=%__s" on next line should equal PFLAGSSIZ !
|
||
fscanf(fp, "%3s\tfieldscur=%64s\n"
|
||
, Winstk[i].rc.winname, Winstk[i].rc.fieldscur);
|
||
#if PFLAGSSIZ > 64
|
||
// too bad fscanf is not as flexible with his format string as snprintf
|
||
# error Hey, fix the above fscanf 'PFLAGSSIZ' dependency !
|
||
#endif
|
||
if (strlen(Winstk[i].rc.fieldscur) != sizeof(DEF_FIELDS) - 1)
|
||
#ifndef RCFILE_NOERR
|
||
error_exit(fmtmk(err_flds, i+1, Rc_name));
|
||
#else
|
||
goto just_default_em;
|
||
#endif
|
||
for (x = 0; x < P_MAXPFLGS; ++x) {
|
||
int f = FLDget(&Winstk[i], x);
|
||
if (P_MAXPFLGS <= f)
|
||
#ifndef RCFILE_NOERR
|
||
error_exit(fmtmk(err_flds, i+1, Rc_name));
|
||
#else
|
||
goto just_default_em;
|
||
#endif
|
||
}
|
||
fscanf(fp, "\twinflags=%d, sortindx=%d, maxtasks=%d\n"
|
||
, &Winstk[i].rc.winflags, (int*)&Winstk[i].rc.sortindx, &Winstk[i].rc.maxtasks);
|
||
fscanf(fp, "\tsummclr=%d, msgsclr=%d, headclr=%d, taskclr=%d\n"
|
||
, &Winstk[i].rc.summclr, &Winstk[i].rc.msgsclr
|
||
, &Winstk[i].rc.headclr, &Winstk[i].rc.taskclr);
|
||
}
|
||
fclose(fp);
|
||
}
|
||
|
||
// lastly, establish the true runtime secure mode and delay time
|
||
if (!getuid()) Secure_mode = 0;
|
||
if (!Secure_mode) Rc.delay_time = tmp_delay;
|
||
return;
|
||
|
||
#ifdef RCFILE_NOERR
|
||
just_default_em:
|
||
fclose(fp);
|
||
Rc = rcdef;
|
||
for (i = 0 ; i < GROUPSMAX; i++)
|
||
Winstk[i].rc = Rc.win[i];
|
||
#endif
|
||
} // end: configs_read
|
||
|
||
|
||
/*
|
||
* Parse command line arguments.
|
||
* Note: it's assumed that the rc file(s) have already been read
|
||
* and our job is to see if any of those options are to be
|
||
* overridden -- we'll force some on and negate others in our
|
||
* best effort to honor the loser's (oops, user's) wishes... */
|
||
static void parse_args (char **args) {
|
||
/* differences between us and the former top:
|
||
-C (separate CPU states for SMP) is left to an rcfile
|
||
-u (user monitoring) added to compliment interactive 'u'
|
||
-p (pid monitoring) allows a comma delimited list
|
||
-q (zero delay) eliminated as redundant, incomplete and inappropriate
|
||
use: "nice -n-10 top -d0" to achieve what was only claimed
|
||
. most switches act as toggles (not 'on' sw) for more user flexibility
|
||
. no deprecated/illegal use of 'breakargv:' with goto
|
||
. bunched args are actually handled properly and none are ignored
|
||
. we tolerate NO whitespace and NO switches -- maybe too tolerant? */
|
||
static const char usage_str[] =
|
||
" -hv | -bcHiSs -d delay -n limit -u|U user | -p pid[,pid] -w [cols]";
|
||
static const char sel_error[] = "conflicting process selections (U/p/u)";
|
||
static const char numbs_str[] = "+,-.0123456789";
|
||
float tmp_delay = MAXFLOAT;
|
||
char *p;
|
||
|
||
while (*args) {
|
||
const char *cp = *(args++);
|
||
|
||
while (*cp) {
|
||
char ch;
|
||
switch ((ch = *cp)) {
|
||
case '\0':
|
||
break;
|
||
case '-':
|
||
if (cp[1]) ++cp;
|
||
else if (*args) cp = *args++;
|
||
if (strspn(cp, numbs_str))
|
||
error_exit(fmtmk("inappropriate '%s'\nusage:\t%s%s", cp, Myname, usage_str));
|
||
continue;
|
||
case 'b':
|
||
Batch = 1;
|
||
break;
|
||
case 'c':
|
||
TOGw(Curwin, Show_CMDLIN);
|
||
break;
|
||
case 'd':
|
||
if (cp[1]) ++cp;
|
||
else if (*args) cp = *args++;
|
||
else error_exit("-d requires argument");
|
||
/* a negative delay will be dealt with shortly... */
|
||
if (1 != sscanf(cp, "%f", &tmp_delay))
|
||
error_exit(fmtmk("bad delay '%s'", cp));
|
||
break;
|
||
case 'H':
|
||
Thread_mode = 1;
|
||
break;
|
||
case 'h':
|
||
case 'v': case 'V':
|
||
fprintf(stdout, "\t%s\nusage:\t%s%s", procps_version, Myname, usage_str);
|
||
bye_bye(NULL);
|
||
case 'i':
|
||
TOGw(Curwin, Show_IDLEPS);
|
||
Curwin->rc.maxtasks = 0;
|
||
break;
|
||
case 'n':
|
||
if (cp[1]) cp++;
|
||
else if (*args) cp = *args++;
|
||
else error_exit("-n requires argument");
|
||
if (1 != sscanf(cp, "%d", &Loops) || 1 > Loops)
|
||
error_exit(fmtmk("bad iterations arg '%s'", cp));
|
||
break;
|
||
case 'p':
|
||
if (Curwin->usrseltyp) error_exit(sel_error);
|
||
do {
|
||
if (cp[1]) cp++;
|
||
else if (*args) cp = *args++;
|
||
else error_exit("-p argument missing");
|
||
if (Monpidsidx >= MONPIDMAX)
|
||
error_exit(fmtmk("pid limit (%d) exceeded", MONPIDMAX));
|
||
if (1 != sscanf(cp, "%d", &Monpids[Monpidsidx])
|
||
|| 0 > Monpids[Monpidsidx])
|
||
error_exit(fmtmk("bad pid '%s'", cp));
|
||
if (!Monpids[Monpidsidx])
|
||
Monpids[Monpidsidx] = getpid();
|
||
Monpidsidx++;
|
||
if (!(p = strchr(cp, ',')))
|
||
break;
|
||
cp = p;
|
||
} while (*cp);
|
||
break;
|
||
case 's':
|
||
Secure_mode = 1;
|
||
break;
|
||
case 'S':
|
||
TOGw(Curwin, Show_CTIMES);
|
||
break;
|
||
case 'u':
|
||
case 'U':
|
||
{ const char *errmsg;
|
||
if (Monpidsidx || Curwin->usrseltyp) error_exit(sel_error);
|
||
if (cp[1]) cp++;
|
||
else if (*args) cp = *args++;
|
||
else error_exit(fmtmk("-%c missing name", ch));
|
||
if ((errmsg = user_certify(Curwin, cp, ch))) error_exit(errmsg);
|
||
cp += strlen(cp);
|
||
break;
|
||
}
|
||
case 'w':
|
||
{ const char *pn = NULL;
|
||
int ai = 0, ci = 0;
|
||
Width_mode = -1;
|
||
if (cp[1]) pn = &cp[1];
|
||
else if (*args) { pn = *args; ai = 1; }
|
||
if (pn && !(ci = strspn(pn, "0123456789"))) { ai = 0; pn = NULL; }
|
||
if (pn && (1 != sscanf(pn, "%d", &Width_mode)
|
||
|| Width_mode < W_MIN_COL))
|
||
error_exit(fmtmk("bad width arg '%s', must > %d", pn, W_MIN_COL-1));
|
||
cp++;
|
||
args += ai;
|
||
if (pn) cp = pn + ci;
|
||
continue;
|
||
}
|
||
default :
|
||
error_exit(fmtmk("unknown option '%c'\nusage:\t%s%s", *cp, Myname, usage_str));
|
||
|
||
} // end: switch (*cp)
|
||
|
||
// advance cp and jump over any numerical args used above
|
||
if (*cp) cp += strspn(&cp[1], numbs_str) + 1;
|
||
|
||
} // end: while (*cp)
|
||
} // end: while (*args)
|
||
|
||
// fixup delay time, maybe...
|
||
if (MAXFLOAT > tmp_delay) {
|
||
if (Secure_mode)
|
||
error_exit("-d disallowed in \"secure\" mode");
|
||
if (0 > tmp_delay)
|
||
error_exit("-d requires positive argument");
|
||
Rc.delay_time = tmp_delay;
|
||
}
|
||
} // end: parse_args
|
||
|
||
|
||
/*
|
||
* Set up the terminal attributes */
|
||
static void whack_terminal (void) {
|
||
static char dummy[] = "dumb";
|
||
struct termios tmptty;
|
||
|
||
// the curses part...
|
||
if (Batch) {
|
||
setupterm(dummy, STDOUT_FILENO, NULL);
|
||
return;
|
||
}
|
||
#ifdef PRETENDNOCAP
|
||
setupterm(dummy, STDOUT_FILENO, NULL);
|
||
#else
|
||
setupterm(NULL, STDOUT_FILENO, NULL);
|
||
#endif
|
||
// our part...
|
||
if (-1 == tcgetattr(STDIN_FILENO, &Tty_original))
|
||
error_exit("failed tty get");
|
||
// ok, haven't really changed anything but we do have our snapshot
|
||
Ttychanged = 1;
|
||
|
||
// first, a consistent canonical mode for interactive line input
|
||
tmptty = Tty_original;
|
||
tmptty.c_lflag |= (ECHO | ECHOCTL | ECHOE | ICANON | ISIG);
|
||
tmptty.c_lflag &= ~NOFLSH;
|
||
tmptty.c_oflag &= ~TAB3;
|
||
tmptty.c_iflag |= BRKINT;
|
||
tmptty.c_iflag &= ~IGNBRK;
|
||
if (key_backspace && 1 == strlen(key_backspace))
|
||
tmptty.c_cc[VERASE] = *key_backspace;
|
||
#ifdef TERMIOS_ONLY
|
||
if (-1 == tcsetattr(STDIN_FILENO, TCSAFLUSH, &tmptty))
|
||
error_exit(fmtmk("failed Tty_tweaked set: %s", strerror(errno)));
|
||
tcgetattr(STDIN_FILENO, &Tty_tweaked);
|
||
#endif
|
||
// lastly, a nearly raw mode for unsolicited single keystrokes
|
||
tmptty.c_lflag &= ~(ECHO | ECHOCTL | ECHOE | ICANON);
|
||
tmptty.c_cc[VMIN] = 1;
|
||
tmptty.c_cc[VTIME] = 0;
|
||
if (-1 == tcsetattr(STDIN_FILENO, TCSAFLUSH, &tmptty))
|
||
error_exit(fmtmk("failed Tty_raw set: %s", strerror(errno)));
|
||
tcgetattr(STDIN_FILENO, &Tty_raw);
|
||
|
||
#ifndef OFF_STDIOLBF
|
||
// thanks anyway stdio, but we'll manage buffering at the frame level...
|
||
setbuffer(stdout, Stdout_buf, sizeof(Stdout_buf));
|
||
#endif
|
||
|
||
// and don't forget to ask keyin to initialize his tinfo_tab
|
||
keyin(1);
|
||
} // end: whack_terminal
|
||
|
||
/*###### Windows/Field Groups support #################################*/
|
||
|
||
/*
|
||
* Value a window's name and make the associated group name. */
|
||
static void win_names (WIN_t *q, const char *name) {
|
||
/* note: sprintf/snprintf results are "undefined" when src==dst,
|
||
according to C99 & POSIX.1-2001 (thanks adc) */
|
||
if (q->rc.winname != name)
|
||
snprintf(q->rc.winname, sizeof(q->rc.winname), "%s", name);
|
||
snprintf(q->grpname, sizeof(q->grpname), "%d:%s", q->winnum, name);
|
||
} // end: win_names
|
||
|
||
|
||
/*
|
||
* Display a window/field group (ie. make it "current"). */
|
||
static WIN_t *win_select (char ch) {
|
||
static const char prompt[] = "Choose field group (1 - 4)";
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
|
||
/* if there's no ch, it means we're supporting the external interface,
|
||
so we must try to get our own darn ch by begging the user... */
|
||
if (!ch) {
|
||
show_pmt(prompt);
|
||
if (1 > chin(0, (char *)&ch, 1)) return Curwin;
|
||
}
|
||
switch (ch) {
|
||
case 'a': // we don't carry 'a' / 'w' in our
|
||
w = w->next; // pmt - they're here for a good
|
||
break; // friend of ours -- wins_colors.
|
||
case 'w': // (however those letters work via
|
||
w = w->prev; // the pmt too but gee, end-loser
|
||
break; // should just press the darn key)
|
||
case '1' ... '4':
|
||
w = &Winstk[ch - '1'];
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
return Curwin = w;
|
||
} // end: win_select
|
||
|
||
|
||
/*
|
||
* Just warn the user when a command can't be honored. */
|
||
static int win_warn (int what) {
|
||
switch (what) {
|
||
case Warn_ALT:
|
||
show_msg("Command disabled, 'A' mode required");
|
||
break;
|
||
case Warn_VIZ:
|
||
show_msg(fmtmk("Command disabled, activate %s with '-' or '_'"
|
||
, Curwin->grpname));
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
/* we gotta' return false 'cause we're somewhat well known within
|
||
macro society, by way of that sassy little tertiary operator... */
|
||
return 0;
|
||
} // end: win_warn
|
||
|
||
|
||
/*
|
||
* Change colors *Helper* function to save/restore settings;
|
||
* ensure colors will show; and rebuild the terminfo strings. */
|
||
static void winsclrhlp (WIN_t *q, int save) {
|
||
static int flgssav, summsav, msgssav, headsav, tasksav;
|
||
|
||
if (save) {
|
||
flgssav = q->rc.winflags; summsav = q->rc.summclr;
|
||
msgssav = q->rc.msgsclr; headsav = q->rc.headclr; tasksav = q->rc.taskclr;
|
||
SETw(q, Show_COLORS);
|
||
} else {
|
||
q->rc.winflags = flgssav; q->rc.summclr = summsav;
|
||
q->rc.msgsclr = msgssav; q->rc.headclr = headsav; q->rc.taskclr = tasksav;
|
||
}
|
||
capsmk(q);
|
||
} // end: winsclrhlp
|
||
|
||
|
||
/*
|
||
* Change colors used in display */
|
||
static void wins_colors (void) {
|
||
#define kbdABORT 'q'
|
||
#define kbdAPPLY kbd_ENTER
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
int clr = w->rc.taskclr, *pclr = &w->rc.taskclr;
|
||
char ch, tgt = 'T';
|
||
|
||
if (0 >= max_colors) {
|
||
show_msg("No colors to map!");
|
||
return;
|
||
}
|
||
winsclrhlp(w, 1);
|
||
putp(Cap_clr_scr);
|
||
putp(Cap_curs_huge);
|
||
|
||
do {
|
||
putp(Cap_home);
|
||
// this string is well above ISO C89's minimum requirements!
|
||
show_special(1, fmtmk(COLOR_help
|
||
, procps_version, w->grpname
|
||
, CHKw(w, View_NOBOLD) ? "On" : "Off"
|
||
, CHKw(w, Show_COLORS) ? "On" : "Off"
|
||
, CHKw(w, Show_HIBOLD) ? "On" : "Off"
|
||
, tgt, clr, w->grpname));
|
||
if (1 > chin(0, &ch, 1)) break;
|
||
switch (ch) {
|
||
case 'S':
|
||
pclr = &w->rc.summclr;
|
||
clr = *pclr;
|
||
tgt = ch;
|
||
break;
|
||
case 'M':
|
||
pclr = &w->rc.msgsclr;
|
||
clr = *pclr;
|
||
tgt = ch;
|
||
break;
|
||
case 'H':
|
||
pclr = &w->rc.headclr;
|
||
clr = *pclr;
|
||
tgt = ch;
|
||
break;
|
||
case 'T':
|
||
pclr = &w->rc.taskclr;
|
||
clr = *pclr;
|
||
tgt = ch;
|
||
break;
|
||
case '0' ... '7':
|
||
clr = ch - '0';
|
||
*pclr = clr;
|
||
break;
|
||
case 'B':
|
||
TOGw(w, View_NOBOLD);
|
||
break;
|
||
case 'b':
|
||
TOGw(w, Show_HIBOLD);
|
||
break;
|
||
case 'z':
|
||
TOGw(w, Show_COLORS);
|
||
break;
|
||
case 'a':
|
||
case 'w':
|
||
winsclrhlp((w = win_select(ch)), 1);
|
||
clr = w->rc.taskclr, pclr = &w->rc.taskclr;
|
||
tgt = 'T';
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
capsmk(w);
|
||
} while (kbdAPPLY != ch && kbdABORT != ch);
|
||
|
||
if (kbdABORT == ch) winsclrhlp(w, 0);
|
||
putp(Cap_curs_norm);
|
||
#undef kbdABORT
|
||
#undef kbdAPPLY
|
||
} // end: wins_colors
|
||
|
||
|
||
/*
|
||
* Manipulate flag(s) for all our windows. */
|
||
static void wins_reflag (int what, int flg) {
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
|
||
do {
|
||
switch (what) {
|
||
case Flags_TOG:
|
||
TOGw(w, flg);
|
||
break;
|
||
case Flags_SET: // Ummmm, i can't find anybody
|
||
SETw(w, flg); // who uses Flags_set ...
|
||
break;
|
||
case Flags_OFF:
|
||
OFFw(w, flg);
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
/* a flag with special significance -- user wants to rebalance
|
||
display so we gotta' off some stuff then force on two flags... */
|
||
if (EQUWINS_xxx == flg) {
|
||
w->rc.maxtasks = w->usrseltyp = w->begpflg = w->begtask = 0;
|
||
Monpidsidx = 0;
|
||
SETw(w, Show_IDLEPS | Show_TASKON);
|
||
}
|
||
w = w->next;
|
||
} while (w != Curwin);
|
||
} // end: wins_reflag
|
||
|
||
|
||
/*
|
||
* Set up the raw/incomplete field group windows --
|
||
* they'll be finished off after startup completes.
|
||
* [ and very likely that will override most/all of our efforts ]
|
||
* [ --- life-is-NOT-fair --- ] */
|
||
static void wins_stage_1 (void) {
|
||
WIN_t *w;
|
||
int i;
|
||
|
||
for (i = 0; i < GROUPSMAX; i++) {
|
||
w = &Winstk[i];
|
||
w->winnum = i + 1;
|
||
w->rc = Rc.win[i];
|
||
w->captab[0] = Cap_norm;
|
||
w->captab[1] = Cap_norm;
|
||
w->captab[2] = w->cap_bold;
|
||
w->captab[3] = w->capclr_sum;
|
||
w->captab[4] = w->capclr_msg;
|
||
w->captab[5] = w->capclr_pmt;
|
||
w->captab[6] = w->capclr_hdr;
|
||
w->captab[7] = w->capclr_rowhigh;
|
||
w->captab[8] = w->capclr_rownorm;
|
||
w->next = w + 1;
|
||
w->prev = w - 1;
|
||
}
|
||
|
||
// fixup the circular chains...
|
||
Winstk[GROUPSMAX - 1].next = &Winstk[0];
|
||
Winstk[0].prev = &Winstk[GROUPSMAX - 1];
|
||
Curwin = Winstk;
|
||
} // end: wins_stage_1
|
||
|
||
|
||
/*
|
||
* This guy just completes the field group windows after the
|
||
* rcfiles have been read and command line arguments parsed */
|
||
static void wins_stage_2 (void) {
|
||
int i;
|
||
|
||
for (i = 0; i < GROUPSMAX; i++) {
|
||
win_names(&Winstk[i], Winstk[i].rc.winname);
|
||
capsmk(&Winstk[i]);
|
||
}
|
||
if (Batch)
|
||
OFFw(Curwin, View_SCROLL);
|
||
|
||
// fill in missing Fieldstab members and build each window's columnhdr
|
||
zap_fieldstab();
|
||
} // end: wins_stage_2
|
||
|
||
/*###### Interactive Input support (do_key helpers) ####################*/
|
||
|
||
/*
|
||
* These routines exist just to keep the do_key() function
|
||
* a reasonably modest size. */
|
||
|
||
static void file_writerc (void) {
|
||
FILE *fp;
|
||
int i;
|
||
|
||
if (!(fp = fopen(Rc_name, "w"))) {
|
||
show_msg(fmtmk("Failed '%s' open: %s", Rc_name, strerror(errno)));
|
||
return;
|
||
}
|
||
fprintf(fp, "%s's " RCF_EYECATCHER, Myname);
|
||
fprintf(fp, "Id:%c, Mode_altscr=%d, Mode_irixps=%d, Delay_time=%.3f, Curwin=%d\n"
|
||
, RCF_VERSION_ID
|
||
, Rc.mode_altscr, Rc.mode_irixps, Rc.delay_time, (int)(Curwin - Winstk));
|
||
|
||
for (i = 0 ; i < GROUPSMAX; i++) {
|
||
fprintf(fp, "%s\tfieldscur=%s\n"
|
||
, Winstk[i].rc.winname, Winstk[i].rc.fieldscur);
|
||
fprintf(fp, "\twinflags=%d, sortindx=%d, maxtasks=%d\n"
|
||
, Winstk[i].rc.winflags, (int)Winstk[i].rc.sortindx
|
||
, Winstk[i].rc.maxtasks);
|
||
fprintf(fp, "\tsummclr=%d, msgsclr=%d, headclr=%d, taskclr=%d\n"
|
||
, Winstk[i].rc.summclr, Winstk[i].rc.msgsclr
|
||
, Winstk[i].rc.headclr, Winstk[i].rc.taskclr);
|
||
}
|
||
fclose(fp);
|
||
show_msg(fmtmk("Wrote configuration to '%s'", Rc_name));
|
||
} // end: file_writerc
|
||
|
||
|
||
static void find_string (int ch) {
|
||
#define reDUX (found) ? "another " : ""
|
||
static char str[SCREENMAX];
|
||
static int found;
|
||
char buf[ROWMINSIZ];
|
||
int i;
|
||
|
||
if ('&' == ch && !str[0]) {
|
||
show_msg("Locate next inactive, use \"L\"");
|
||
return;
|
||
}
|
||
if ('L' == ch) {
|
||
strcpy(str, linein("Locate string"));
|
||
found = 0;
|
||
}
|
||
if (str[0]) {
|
||
for (i = Curwin->begtask; i < Frame_maxtask; i++) {
|
||
task_show(Curwin, Curwin->ppt[i], buf);
|
||
if (strstr(buf, str)) {
|
||
found = 1;
|
||
if (i == Curwin->begtask) continue;
|
||
Curwin->begtask = i;
|
||
return;
|
||
}
|
||
}
|
||
show_msg(fmtmk("%s\"%s\" not found", reDUX, str));
|
||
}
|
||
#undef reDUX
|
||
} // end: find_string
|
||
|
||
|
||
static void help_view (void) {
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
char ch;
|
||
|
||
putp(Cap_clr_scr);
|
||
putp(Cap_curs_huge);
|
||
|
||
// this string is well above ISO C89's minimum requirements!
|
||
show_special(1, fmtmk(KEYS_help
|
||
, procps_version
|
||
, w->grpname
|
||
, CHKw(w, Show_CTIMES) ? "On" : "Off"
|
||
, Rc.delay_time
|
||
, Secure_mode ? "On" : "Off"
|
||
, Secure_mode ? "" : KEYS_help_unsecured));
|
||
|
||
if (0 < chin(0, &ch, 1)
|
||
&& ('?' == ch || 'h' == ch || 'H' == ch)) {
|
||
do {
|
||
putp(Cap_clr_scr);
|
||
show_special(1, fmtmk(WINDOWS_help
|
||
, w->grpname
|
||
, Winstk[0].rc.winname, Winstk[1].rc.winname
|
||
, Winstk[2].rc.winname, Winstk[3].rc.winname));
|
||
if (1 > chin(0, &ch, 1)) break;
|
||
w = win_select(ch);
|
||
} while (kbd_ENTER != ch);
|
||
}
|
||
|
||
putp(Cap_curs_norm);
|
||
} // end: help_view
|
||
|
||
|
||
static void keys_global (int ch) {
|
||
// standardized error message(s)
|
||
static const char err_secure[] = "Unavailable in secure mode";
|
||
static const char err_notsmp[] = "Only 1 cpu detected";
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
|
||
switch (ch) {
|
||
case 'B':
|
||
TOGw(w, View_NOBOLD);
|
||
capsmk(w);
|
||
break;
|
||
case 'd':
|
||
case 's':
|
||
if (Secure_mode)
|
||
show_msg(err_secure);
|
||
else {
|
||
float tmp =
|
||
get_float(fmtmk("Change delay from %.1f to", Rc.delay_time));
|
||
if (-1 < tmp) Rc.delay_time = tmp;
|
||
}
|
||
break;
|
||
case 'F':
|
||
case 'f':
|
||
fields_utility();
|
||
break;
|
||
case 'g':
|
||
win_select(0);
|
||
break;
|
||
case 'H':
|
||
Thread_mode = !Thread_mode;
|
||
if (!CHKw(w, View_STATES))
|
||
show_msg(fmtmk("Show threads %s", Thread_mode ? "On" : "Off"));
|
||
break;
|
||
case 'I':
|
||
if (Cpu_tot > 1) {
|
||
Rc.mode_irixps = !Rc.mode_irixps;
|
||
show_msg(fmtmk("Irix mode %s", Rc.mode_irixps ? "On" : "Off"));
|
||
} else
|
||
show_msg(err_notsmp);
|
||
break;
|
||
case 'k':
|
||
if (Secure_mode) {
|
||
show_msg(err_secure);
|
||
} else {
|
||
int pid, sig = SIGTERM;
|
||
char *str;
|
||
if (-1 < (pid = get_int("pid to signal/kill"))) {
|
||
str = linein(fmtmk("Send pid %d signal [%d/sigterm]", pid, SIGTERM));
|
||
if (*str) sig = signal_name_to_number(str);
|
||
if (0 < sig && kill(pid, sig))
|
||
show_msg(fmtmk("Failed signal pid '%d' with '%d': %s"
|
||
, pid, sig, strerror(errno)));
|
||
else if (0 > sig) show_msg("Invalid signal");
|
||
}
|
||
}
|
||
break;
|
||
case 'r':
|
||
if (Secure_mode)
|
||
show_msg(err_secure);
|
||
else {
|
||
int val, pid;
|
||
if (-1 < (pid = get_int("PID to renice"))
|
||
&& INT_MIN < (val = get_int(fmtmk("Renice PID %d to value", pid))))
|
||
if (setpriority(PRIO_PROCESS, (unsigned)pid, val))
|
||
show_msg(fmtmk("Failed renice of PID %d to %d: %s"
|
||
, pid, val, strerror(errno)));
|
||
}
|
||
break;
|
||
case 'Z':
|
||
wins_colors();
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
} // end: keys_global
|
||
|
||
|
||
static void keys_summary (int ch) {
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
|
||
switch (ch) {
|
||
case '1':
|
||
TOGw(w, View_CPUSUM);
|
||
break;
|
||
case 'C':
|
||
VIZTOGw(w, View_SCROLL);
|
||
break;
|
||
case 'l':
|
||
TOGw(w, View_LOADAV);
|
||
break;
|
||
case 'm':
|
||
TOGw(w, View_MEMORY);
|
||
break;
|
||
case 't':
|
||
TOGw(w, View_STATES);
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
} // end: keys_summary
|
||
|
||
|
||
static void keys_task (int ch) {
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
|
||
switch (ch) {
|
||
case '#':
|
||
case 'n':
|
||
if (VIZCHKw(w)) {
|
||
int num = get_int(fmtmk("Maximum tasks = %d, change to (0 is unlimited)", w->rc.maxtasks));
|
||
if (INT_MIN < num) {
|
||
if (-1 < num ) w->rc.maxtasks = num;
|
||
else show_msg("Invalid maximum");
|
||
}
|
||
}
|
||
break;
|
||
case '<':
|
||
#ifdef TREE_NORESET
|
||
if (CHKw(w, Show_FOREST)) break;
|
||
#endif
|
||
if (VIZCHKw(w)) {
|
||
FLG_t *p = w->procflgs + w->maxpflgs - 1;
|
||
while (p > w->procflgs && *p != w->rc.sortindx) --p;
|
||
if (*p == w->rc.sortindx) {
|
||
--p;
|
||
#ifndef USE_X_COLHDR
|
||
if (P_MAXPFLGS < *p) --p;
|
||
#endif
|
||
if (p >= w->procflgs) {
|
||
w->rc.sortindx = *p;
|
||
#ifndef TREE_NORESET
|
||
OFFw(w, Show_FOREST);
|
||
#endif
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
case '>':
|
||
#ifdef TREE_NORESET
|
||
if (CHKw(w, Show_FOREST)) break;
|
||
#endif
|
||
if (VIZCHKw(w)) {
|
||
FLG_t *p = w->procflgs + w->maxpflgs - 1;
|
||
while (p > w->procflgs && *p != w->rc.sortindx) --p;
|
||
if (*p == w->rc.sortindx) {
|
||
++p;
|
||
#ifndef USE_X_COLHDR
|
||
if (P_MAXPFLGS < *p) ++p;
|
||
#endif
|
||
if (p < w->procflgs + w->maxpflgs) {
|
||
w->rc.sortindx = *p;
|
||
#ifndef TREE_NORESET
|
||
OFFw(w, Show_FOREST);
|
||
#endif
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
case 'b':
|
||
if (VIZCHKw(w)) {
|
||
#ifdef USE_X_COLHDR
|
||
if (!CHKw(w, Show_HIROWS))
|
||
#else
|
||
if (!CHKw(w, Show_HICOLS | Show_HIROWS))
|
||
#endif
|
||
show_msg("Nothing to highlight!");
|
||
else {
|
||
TOGw(w, Show_HIBOLD);
|
||
capsmk(w);
|
||
}
|
||
}
|
||
break;
|
||
case 'c':
|
||
VIZTOGw(w, Show_CMDLIN);
|
||
break;
|
||
case 'i':
|
||
VIZTOGw(w, Show_IDLEPS);
|
||
break;
|
||
case 'R':
|
||
#ifdef TREE_NORESET
|
||
if (!CHKw(w, Show_FOREST)) VIZTOGw(w, Qsrt_NORMAL);
|
||
#else
|
||
if (VIZCHKw(w)) {
|
||
TOGw(w, Qsrt_NORMAL);
|
||
OFFw(w, Show_FOREST);
|
||
}
|
||
#endif
|
||
break;
|
||
case 'S':
|
||
if (VIZCHKw(w)) {
|
||
TOGw(w, Show_CTIMES);
|
||
show_msg(fmtmk("Cumulative time %s", CHKw(w, Show_CTIMES) ? "On" : "Off"));
|
||
}
|
||
break;
|
||
case 'U':
|
||
case 'u':
|
||
if (VIZCHKw(w)) {
|
||
const char *errmsg;
|
||
if ((errmsg = user_certify(w, linein("Which user (blank for all)"), ch)))
|
||
show_msg(errmsg);
|
||
}
|
||
break;
|
||
case 'V':
|
||
if (VIZCHKw(w)) {
|
||
TOGw(w, Show_FOREST);
|
||
if (!ENUviz(w, P_CMD))
|
||
show_msg(fmtmk("Forest mode %s", CHKw(w, Show_FOREST) ? "On" : "Off"));
|
||
}
|
||
break;
|
||
case 'x':
|
||
if (VIZCHKw(w)) {
|
||
#ifdef USE_X_COLHDR
|
||
TOGw(w, Show_HICOLS);
|
||
capsmk(w);
|
||
#else
|
||
if (ENUviz(w, w->rc.sortindx)) {
|
||
TOGw(w, Show_HICOLS);
|
||
if (ENUpos(w, w->rc.sortindx) < w->begpflg) {
|
||
if (CHKw(w, Show_HICOLS)) w->begpflg += 2;
|
||
else w->begpflg -= 2;
|
||
if (0 > w->begpflg) w->begpflg = 0;
|
||
}
|
||
capsmk(w);
|
||
}
|
||
#endif
|
||
}
|
||
break;
|
||
case 'y':
|
||
if (VIZCHKw(w)) {
|
||
TOGw(w, Show_HIROWS);
|
||
capsmk(w);
|
||
}
|
||
break;
|
||
case 'z':
|
||
if (VIZCHKw(w)) {
|
||
TOGw(w, Show_COLORS);
|
||
capsmk(w);
|
||
}
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
} // end: keys_task
|
||
|
||
|
||
static void keys_window (int ch) {
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
|
||
switch (ch) {
|
||
case '+':
|
||
if (ALTCHKw) wins_reflag(Flags_OFF, EQUWINS_xxx);
|
||
break;
|
||
case '-':
|
||
if (ALTCHKw) TOGw(w, Show_TASKON);
|
||
break;
|
||
case '=':
|
||
SETw(w, Show_IDLEPS | Show_TASKON);
|
||
w->rc.maxtasks = w->usrseltyp = w->begpflg = w->begtask = 0;
|
||
Monpidsidx = 0;
|
||
break;
|
||
case '_':
|
||
if (ALTCHKw) wins_reflag(Flags_TOG, Show_TASKON);
|
||
break;
|
||
case '&':
|
||
case 'L':
|
||
if (VIZCHKw(w)) { // ( next 2 are strictly for the UI )
|
||
SETw(w, Show_IDLEPS); // make sure we're showing idle tasks
|
||
w->usrseltyp = 0; // make sure we're not user filtering
|
||
find_string(ch); // ( we'll search entire ppt anyway )
|
||
}
|
||
break;
|
||
case 'A':
|
||
Rc.mode_altscr = !Rc.mode_altscr;
|
||
break;
|
||
case 'a':
|
||
case 'w':
|
||
if (ALTCHKw) win_select(ch);
|
||
break;
|
||
case 'G':
|
||
if (ALTCHKw) {
|
||
char tmp[SMLBUFSIZ];
|
||
STRLCPY(tmp, linein(fmtmk("Rename window '%s' to (1-3 chars)", w->rc.winname)))
|
||
if (tmp[0]) win_names(w, tmp);
|
||
}
|
||
break;
|
||
case kbd_UP:
|
||
if (VIZCHKw(w)) if (0 < w->begtask) w->begtask -= 1;
|
||
break;
|
||
case kbd_DOWN:
|
||
if (VIZCHKw(w)) if (w->begtask < Frame_maxtask - 1) w->begtask += 1;
|
||
break;
|
||
#ifdef USE_X_COLHDR
|
||
case kbd_LEFT:
|
||
if (VIZCHKw(w)) if (0 < w->begpflg) w->begpflg -= 1;
|
||
break;
|
||
case kbd_RIGHT:
|
||
if (VIZCHKw(w)) if (w->begpflg + 1 < w->totpflgs) w->begpflg += 1;
|
||
break;
|
||
#else
|
||
case kbd_LEFT:
|
||
if (VIZCHKw(w)) if (0 < w->begpflg) {
|
||
w->begpflg -= 1;
|
||
if (P_MAXPFLGS < w->pflgsall[w->begpflg]) w->begpflg -= 2;
|
||
}
|
||
break;
|
||
case kbd_RIGHT:
|
||
if (VIZCHKw(w)) if (w->begpflg + 1 < w->totpflgs) {
|
||
if (P_MAXPFLGS < w->pflgsall[w->begpflg])
|
||
w->begpflg += (w->begpflg + 3 < w->totpflgs) ? 3 : 0;
|
||
else w->begpflg += 1;
|
||
}
|
||
break;
|
||
#endif
|
||
case kbd_PGUP:
|
||
if (VIZCHKw(w)) if (0 < w->begtask) {
|
||
w->begtask -= (w->winlines - 1);
|
||
if (0 > w->begtask) w->begtask = 0;
|
||
}
|
||
break;
|
||
case kbd_PGDN:
|
||
if (VIZCHKw(w)) if (w->begtask < Frame_maxtask - 1) {
|
||
w->begtask += (w->winlines - 1);
|
||
if (w->begtask > Frame_maxtask - 1) w->begtask = Frame_maxtask - 1;
|
||
if (0 > w->begtask) w->begtask = 0;
|
||
}
|
||
break;
|
||
case kbd_HOME:
|
||
if (VIZCHKw(w)) w->begtask = w->begpflg = 0;
|
||
break;
|
||
case kbd_END:
|
||
if (VIZCHKw(w)) {
|
||
w->begtask = (Frame_maxtask - w->winlines) + 1;
|
||
if (0 > w->begtask) w->begtask = 0;
|
||
w->begpflg = w->endpflg;
|
||
}
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
} // end: keys_window
|
||
|
||
|
||
static void keys_xtra (int ch) {
|
||
// const char *xmsg;
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
|
||
#ifdef TREE_NORESET
|
||
if (CHKw(w, Show_FOREST)) return;
|
||
#else
|
||
OFFw(w, Show_FOREST);
|
||
#endif
|
||
/* these keys represent old-top compatability --
|
||
they're grouped here so that if users could ever be weaned,
|
||
we would just whack do_key's key_tab entry and this function... */
|
||
switch (ch) {
|
||
case 'M':
|
||
w->rc.sortindx = P_MEM;
|
||
// xmsg = "Memory";
|
||
break;
|
||
case 'N':
|
||
w->rc.sortindx = P_PID;
|
||
// xmsg = "Numerical";
|
||
break;
|
||
case 'P':
|
||
w->rc.sortindx = P_CPU;
|
||
// xmsg = "CPU";
|
||
break;
|
||
case 'T':
|
||
w->rc.sortindx = P_TM2;
|
||
// xmsg = "Time";
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
}
|
||
// some have objected to this message, so we'll just keep silent...
|
||
// show_msg(fmtmk("%s sort compatibility key honored", xtab[i].xmsg));
|
||
} // end: keys_xtra
|
||
|
||
/*###### Forest View support ###########################################*/
|
||
|
||
/*
|
||
* We try to keep most existing code unaware of our activities. */
|
||
static proc_t **Seed_ppt; // temporary window ppt ptr
|
||
static proc_t **Tree_ppt; // resized by forest_create
|
||
static int Tree_idx; // frame_make initializes
|
||
|
||
/*
|
||
* This little recursive guy is the real forest view workhorse.
|
||
* He fills in the Tree_ppt array and also sets the child indent
|
||
* level which is stored in an unused proc_t padding byte. */
|
||
static void forest_add (const int self, const int level) {
|
||
int i;
|
||
|
||
Tree_ppt[Tree_idx] = Seed_ppt[self]; // add this as root or child
|
||
Tree_ppt[Tree_idx++]->pad_3 = level; // borrow 1 byte, 127 levels
|
||
#ifdef TREE_ONEPASS
|
||
for (i = self + 1; i < Frame_maxtask; i++) {
|
||
#else
|
||
for (i = 0; i < Frame_maxtask; i++) {
|
||
if (i == self) continue;
|
||
#endif
|
||
if (Seed_ppt[self]->tid == Seed_ppt[i]->tgid
|
||
|| (Seed_ppt[self]->tid == Seed_ppt[i]->ppid && Seed_ppt[i]->tid == Seed_ppt[i]->tgid))
|
||
forest_add(i, level + 1); // got one child any others?
|
||
}
|
||
} // end: forest_add
|
||
|
||
|
||
/*
|
||
* This routine is responsible for preparing the proc_t's for
|
||
* a forest display in the designated window. Upon completion,
|
||
* he'll replace the original window ppt with our specially
|
||
* ordered forest version. */
|
||
static void forest_create (WIN_t *q) {
|
||
static int hwmsav;
|
||
|
||
Seed_ppt = q->ppt; // avoid passing WIN_t ptrs
|
||
if (!Tree_idx) { // do just once per frame
|
||
int i = 0;
|
||
Frame_srtflg = -1; // put in ascending ppid order
|
||
qsort(Seed_ppt, Frame_maxtask, sizeof(proc_t*), Fieldstab[P_PPD].sort);
|
||
if (hwmsav < Frame_maxtask) { // grow, but never shrink
|
||
hwmsav = Frame_maxtask;
|
||
Tree_ppt = alloc_r(Tree_ppt, sizeof(proc_t*) * hwmsav);
|
||
}
|
||
while (0 == Seed_ppt[i]->ppid) // identify trees (expect 2)
|
||
forest_add(i++, 1); // add parent plus children
|
||
if (Tree_idx != Frame_maxtask) // this will keep us sane...
|
||
for (i = 0; i < Frame_maxtask; i++)
|
||
if (!Seed_ppt[i]->pad_3)
|
||
Tree_ppt[Tree_idx++] = Seed_ppt[i];
|
||
}
|
||
memcpy(Seed_ppt, Tree_ppt, sizeof(proc_t*) * Frame_maxtask);
|
||
} // end: forest_create
|
||
|
||
|
||
/*
|
||
* This guy adds the artwork to either p->cmd or p->cmdline
|
||
* when in forest view mode, otherwise he just returns 'em. */
|
||
static inline const char *forest_display (const WIN_t *q, const proc_t *p) {
|
||
static char buf[ROWMINSIZ];
|
||
const char *which = (CHKw(q, Show_CMDLIN)) ? *p->cmdline : p->cmd;
|
||
|
||
if (!CHKw(q, Show_FOREST) || 1 == p->pad_3) return which;
|
||
if (!p->pad_3) snprintf(buf, sizeof(buf), " ? %s", which);
|
||
else snprintf(buf, sizeof(buf), "%*s%s", 4 * (p->pad_3 - 1), " `- ", which);
|
||
return buf;
|
||
} // end: forest_display
|
||
|
||
/*###### Main Screen routines ##########################################*/
|
||
|
||
/*
|
||
* Process keyboard input during the main loop */
|
||
static void do_key (int ch) {
|
||
static struct {
|
||
void (*func)(int ch);
|
||
char keys[SMLBUFSIZ];
|
||
} key_tab[] = {
|
||
{ keys_global,
|
||
{ 'B', 'd', 'F', 'f', 'g', 'H', 'I', 'k', 'r', 's', 'Z' } },
|
||
{ keys_summary,
|
||
{ '1', 'C', 'l', 'm', 't' } },
|
||
{ keys_task,
|
||
{ '#', '<', '>', 'b', 'c', 'i', 'n', 'R', 'S'
|
||
, 'U', 'u', 'V', 'x', 'y', 'z' } },
|
||
{ keys_window,
|
||
{ '+', '-', '=', '_', '&', 'A', 'a', 'G', 'L', 'w'
|
||
, kbd_UP, kbd_DOWN, kbd_LEFT, kbd_RIGHT, kbd_PGUP, kbd_PGDN
|
||
, kbd_HOME, kbd_END } },
|
||
{ keys_xtra,
|
||
{ 'M', 'N', 'P', 'T' } }
|
||
};
|
||
int i;
|
||
|
||
switch (ch) {
|
||
case 0: // ignored (always)
|
||
case kbd_ESC: // ignored (sometimes)
|
||
return;
|
||
case 'q': // no return from this guy
|
||
bye_bye(NULL);
|
||
case 'W': // no need for rebuilds
|
||
file_writerc();
|
||
return;
|
||
case '?': // might need rebuilds,
|
||
case 'h': // if curwin is changed
|
||
help_view();
|
||
break;
|
||
case kbd_ENTER: // these two will have the effect of waking us
|
||
case kbd_SPACE: // from 'select()', updating hotplugged resources
|
||
sysinfo_refresh(1); // and then refreshing the display
|
||
break;
|
||
default: // and now, the real work...
|
||
for (i = 0; i < MAXTBL(key_tab); ++i)
|
||
if (strchr(key_tab[i].keys, ch)) {
|
||
key_tab[i].func(ch);
|
||
break;
|
||
}
|
||
|
||
if (!(i < MAXTBL(key_tab))) {
|
||
show_msg("Unknown command - try 'h' for help");
|
||
return;
|
||
}
|
||
};
|
||
|
||
/* The following assignment will force a rebuild of all column headers and
|
||
the PROC_FILLxxx flags. It's NOT simply lazy programming. Here are
|
||
some keys that COULD require new column headers and/or libproc flags:
|
||
'A' - likely
|
||
'c' - likely when !Mode_altscr, maybe when Mode_altscr
|
||
'F' - likely
|
||
'f' - likely
|
||
'g' - likely
|
||
'H' - likely (%CPU .fmts)
|
||
'I' - likely (%CPU .fmts)
|
||
'Z' - likely, if 'Curwin' changed when !Mode_altscr
|
||
'-' - likely (restricted to Mode_altscr)
|
||
'_' - likely (restricted to Mode_altscr)
|
||
'=' - maybe, but only when Mode_altscr
|
||
'+' - likely (restricted to Mode_altscr)
|
||
PLUS, likely for FOUR of the EIGHT cursor motion keys (scrolled)
|
||
( At this point we have a human being involved and so have all the time )
|
||
( in the world. We can afford a few extra cpu cycles every now & then! )
|
||
*/
|
||
Frames_resize = 1;
|
||
} // end: do_key
|
||
|
||
|
||
/*
|
||
* State display *Helper* function to calc and display the state
|
||
* percentages for a single cpu. In this way, we can support
|
||
* the following environments without the usual code bloat.
|
||
* 1) single cpu machines
|
||
* 2) modest smp boxes with room for each cpu's percentages
|
||
* 3) massive smp guys leaving little or no room for process
|
||
* display and thus requiring the cpu summary toggle */
|
||
static void summaryhlp (CPU_t *cpu, const char *pfx) {
|
||
/* we'll trim to zero if we get negative time ticks,
|
||
which has happened with some SMP kernels (pre-2.4?) */
|
||
#define TRIMz(x) ((tz = (SIC_t)(x)) < 0 ? 0 : tz)
|
||
SIC_t u_frme, s_frme, n_frme, i_frme, w_frme, x_frme, y_frme, z_frme, tot_frme, tz;
|
||
float scale;
|
||
|
||
u_frme = cpu->u - cpu->u_sav;
|
||
s_frme = cpu->s - cpu->s_sav;
|
||
n_frme = cpu->n - cpu->n_sav;
|
||
i_frme = TRIMz(cpu->i - cpu->i_sav);
|
||
if ((u_frme == 0) && (i_frme == 0)) i_frme = 100;
|
||
w_frme = cpu->w - cpu->w_sav;
|
||
x_frme = cpu->x - cpu->x_sav;
|
||
y_frme = cpu->y - cpu->y_sav;
|
||
z_frme = cpu->z - cpu->z_sav;
|
||
tot_frme = u_frme + s_frme + n_frme + i_frme + w_frme + x_frme + y_frme + z_frme;
|
||
if (1 > tot_frme) tot_frme = 1;
|
||
scale = 100.0 / (float)tot_frme;
|
||
|
||
/* display some kinda' cpu state percentages
|
||
(who or what is explained by the passed prefix) */
|
||
show_special(0, fmtmk(Cpu_States_fmts, pfx
|
||
, (float)u_frme * scale, (float)s_frme * scale
|
||
, (float)n_frme * scale, (float)i_frme * scale
|
||
, (float)w_frme * scale, (float)x_frme * scale
|
||
, (float)y_frme * scale, (float)z_frme * scale));
|
||
|
||
// remember for next time around
|
||
cpu->u_sav = cpu->u;
|
||
cpu->s_sav = cpu->s;
|
||
cpu->n_sav = cpu->n;
|
||
cpu->i_sav = cpu->i;
|
||
cpu->w_sav = cpu->w;
|
||
cpu->x_sav = cpu->x;
|
||
cpu->y_sav = cpu->y;
|
||
cpu->z_sav = cpu->z;
|
||
#undef TRIMz
|
||
} // end: summaryhlp
|
||
|
||
|
||
/*
|
||
* In support of a new frame:
|
||
* 1) Display uptime and load average (maybe)
|
||
* 2) Display task/cpu states (maybe)
|
||
* 3) Display memory & swap usage (maybe) */
|
||
static void summary_show (void) {
|
||
#define isROOM(f,n) (CHKw(w, f) && Msg_row + (n) < Screen_rows - 1)
|
||
#define anyFLG 0xffffff
|
||
static CPU_t *smpcpu = NULL;
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
|
||
// Display Uptime and Loadavg
|
||
if (isROOM(View_LOADAV, 1)) {
|
||
if (!Rc.mode_altscr)
|
||
show_special(0, fmtmk(LOADAV_line, Myname, sprint_uptime()));
|
||
else
|
||
show_special(0, fmtmk(CHKw(w, Show_TASKON)? LOADAV_line_alt : LOADAV_line
|
||
, w->grpname, sprint_uptime()));
|
||
Msg_row += 1;
|
||
}
|
||
|
||
// Display Task and Cpu(s) States
|
||
if (isROOM(View_STATES, 2)) {
|
||
show_special(0, fmtmk(STATES_line1
|
||
, Thread_mode ? "Threads" : "Tasks"
|
||
, Frame_maxtask, Frame_running, Frame_sleepin
|
||
, Frame_stopped, Frame_zombied));
|
||
Msg_row += 1;
|
||
|
||
smpcpu = cpus_refresh(smpcpu);
|
||
|
||
if (CHKw(w, View_CPUSUM)) {
|
||
// display just the 1st /proc/stat line
|
||
summaryhlp(&smpcpu[Cpu_tot], "Cpu(s):");
|
||
Msg_row += 1;
|
||
} else {
|
||
int i;
|
||
char tmp[MEDBUFSIZ];
|
||
// display each cpu's states separately, screen height permitting...
|
||
for (i = 0; i < Cpu_tot; i++) {
|
||
snprintf(tmp, sizeof(tmp), "Cpu%-3d:", smpcpu[i].id);
|
||
summaryhlp(&smpcpu[i], tmp);
|
||
Msg_row += 1;
|
||
if (!isROOM(anyFLG, 1)) break;
|
||
}
|
||
}
|
||
}
|
||
|
||
// Display Memory and Swap stats
|
||
if (isROOM(View_MEMORY, 2)) {
|
||
#define mkM(x) (unsigned long)(kb_main_ ## x >> shift)
|
||
#define mkS(x) (unsigned long)(kb_swap_ ## x >> shift)
|
||
const char *which = "Kb";
|
||
int shift = 0;
|
||
|
||
/*** hotplug_acclimated ***/
|
||
if (kb_main_total > 9999999) { which = "Mb"; shift = 10; }
|
||
if (kb_main_total > 9999999999ull) { which = "Gb"; shift = 20; }
|
||
|
||
show_special(0, fmtmk(MEMORY_twolines
|
||
, which, mkM(total), mkM(used), mkM(free), mkM(buffers)
|
||
, which, mkS(total), mkS(used), mkS(free), mkM(cached)));
|
||
Msg_row += 2;
|
||
#undef mkM
|
||
#undef mkS
|
||
}
|
||
|
||
#undef isROOM
|
||
#undef anyFLG
|
||
} // end: summary_show
|
||
|
||
|
||
/*
|
||
* Build the information for a single task row and
|
||
* display the results or return them to the caller. */
|
||
static void task_show (const WIN_t *q, const proc_t *p, char *ptr) {
|
||
#define makeCOL(va...) snprintf(cbuf, sizeof(cbuf), f, ## va)
|
||
#define makeVAR(v) { f = VARCOL_fmts; makeCOL(q->varcolsz, q->varcolsz, v); }
|
||
#define pages2K(n) (unsigned long)( (n) << Pg2K_shft )
|
||
char rbuf[ROWMINSIZ], *rp;
|
||
int j, x;
|
||
|
||
// we must begin a row with a possible window number in mind...
|
||
*(rp = rbuf) = '\0';
|
||
if (Rc.mode_altscr) rp = scat(rp, " ");
|
||
|
||
for (x = 0; x < q->maxpflgs; x++) {
|
||
char cbuf[SCREENMAX];
|
||
FLG_t i = q->procflgs[x]; // support for our field/column
|
||
const char *f = Fieldstab[i].fmts; // macro AND sometimes the fmt
|
||
int s = Fieldstab[i].scale; // string must be altered !
|
||
int w = Fieldstab[i].width;
|
||
|
||
switch (i) {
|
||
#ifndef USE_X_COLHDR
|
||
// these 2 aren't real procflgs, they're used in column highlighting!
|
||
case X_XON:
|
||
case X_XOF:
|
||
if (ptr) continue;
|
||
/* treat running tasks specially - entire row may get highlighted
|
||
so we needn't turn it on and we MUST NOT turn it off */
|
||
if (!('R' == p->state && CHKw(q, Show_HIROWS)))
|
||
rp = scat(rp, X_XON == i ? q->capclr_rowhigh : q->capclr_rownorm);
|
||
continue;
|
||
#endif
|
||
case P_CGR:
|
||
// our kernel may not support cgroups
|
||
makeVAR(p->cgroup ? *p->cgroup : "n/a");
|
||
break;
|
||
case P_CMD:
|
||
makeVAR(forest_display(q, p));
|
||
break;
|
||
case P_COD:
|
||
makeCOL(scale_num(pages2K(p->trs), w, s));
|
||
break;
|
||
case P_CPN:
|
||
makeCOL(p->processor);
|
||
break;
|
||
case P_CPU:
|
||
{ float u = (float)p->pcpu * Frame_etscale;
|
||
if (u > Cpu_pmax) u = Cpu_pmax;
|
||
makeCOL(u);
|
||
}
|
||
break;
|
||
case P_DAT:
|
||
makeCOL(scale_num(pages2K(p->drs), w, s));
|
||
break;
|
||
case P_DRT:
|
||
makeCOL(scale_num((unsigned long)p->dt, w, s));
|
||
break;
|
||
case P_FLG:
|
||
{ char tmp[SMLBUFSIZ];
|
||
snprintf(tmp, sizeof(tmp), f, (long)p->flags);
|
||
for (j = 0; tmp[j]; j++) if ('0' == tmp[j]) tmp[j] = '.';
|
||
f = tmp;
|
||
makeCOL("");
|
||
}
|
||
break;
|
||
case P_FL1:
|
||
makeCOL(scale_num(p->maj_flt, w, s));
|
||
break;
|
||
case P_FL2:
|
||
makeCOL(scale_num(p->min_flt, w, s));
|
||
break;
|
||
case P_GID:
|
||
makeCOL(p->egid);
|
||
break;
|
||
case P_GRP:
|
||
makeCOL(p->egroup);
|
||
break;
|
||
case P_MEM:
|
||
makeCOL((float)pages2K(p->resident) * 100 / kb_main_total);
|
||
break;
|
||
case P_NCE:
|
||
makeCOL((int)p->nice);
|
||
break;
|
||
#ifdef OOMEM_ENABLE
|
||
case P_OOA:
|
||
makeCOL((int)p->oom_adj);
|
||
break;
|
||
case P_OOM:
|
||
makeCOL((long)p->oom_score);
|
||
break;
|
||
#endif
|
||
case P_PGD:
|
||
makeCOL(p->pgrp);
|
||
break;
|
||
case P_PID:
|
||
makeCOL(p->tid);
|
||
break;
|
||
case P_PPD:
|
||
makeCOL(p->ppid);
|
||
break;
|
||
case P_PRI:
|
||
if (-99 > p->priority || 999 < p->priority) {
|
||
f = " rt ";
|
||
makeCOL("");
|
||
} else
|
||
makeCOL((int)p->priority);
|
||
break;
|
||
case P_RES:
|
||
makeCOL(scale_num(pages2K(p->resident), w, s));
|
||
break;
|
||
case P_SGD:
|
||
makeVAR(p->supgid ? p->supgid : "n/a");
|
||
break;
|
||
case P_SGN:
|
||
makeVAR(p->supgrp ? p->supgrp : "n/a");
|
||
break;
|
||
case P_SHR:
|
||
makeCOL(scale_num(pages2K(p->share), w, s));
|
||
break;
|
||
case P_SID:
|
||
makeCOL(p->session);
|
||
break;
|
||
case P_STA:
|
||
makeCOL(p->state);
|
||
break;
|
||
case P_SWP:
|
||
makeCOL(scale_num(p->vm_swap, w, s));
|
||
break;
|
||
case P_TGD:
|
||
makeCOL(p->tgid);
|
||
break;
|
||
case P_THD:
|
||
makeCOL(p->nlwp);
|
||
break;
|
||
case P_TME:
|
||
case P_TM2:
|
||
{ TIC_t t = p->utime + p->stime;
|
||
if (CHKw(q, Show_CTIMES)) t += (p->cutime + p->cstime);
|
||
makeCOL(scale_tics(t, w));
|
||
}
|
||
break;
|
||
case P_TPG:
|
||
makeCOL(p->tpgid);
|
||
break;
|
||
case P_TTY:
|
||
{ char tmp[SMLBUFSIZ];
|
||
dev_to_tty(tmp, w, p->tty, p->tid, ABBREV_DEV);
|
||
makeCOL(tmp);
|
||
}
|
||
break;
|
||
case P_UED:
|
||
makeCOL(p->euid);
|
||
break;
|
||
case P_UEN:
|
||
makeCOL(p->euser);
|
||
break;
|
||
case P_URD:
|
||
makeCOL(p->ruid);
|
||
break;
|
||
case P_URN:
|
||
makeCOL(p->ruser);
|
||
break;
|
||
case P_USD:
|
||
makeCOL(p->suid);
|
||
break;
|
||
case P_USN:
|
||
makeCOL(p->suser);
|
||
break;
|
||
case P_VRT:
|
||
makeCOL(scale_num(pages2K(p->size), w, s));
|
||
break;
|
||
case P_WCH:
|
||
if (No_ksyms) {
|
||
#ifdef CASEUP_HEXES
|
||
makeVAR(fmtmk("%08" KLF "X", p->wchan))
|
||
#else
|
||
makeVAR(fmtmk("%08" KLF "x", p->wchan))
|
||
#endif
|
||
} else
|
||
makeVAR(lookup_wchan(p->wchan, p->tid))
|
||
break;
|
||
default: // keep gcc happy
|
||
break;
|
||
|
||
} // end: switch 'procflag'
|
||
|
||
rp = scat(rp, cbuf);
|
||
} // end: for 'maxpflgs'
|
||
|
||
if (ptr)
|
||
strcpy(ptr, rbuf);
|
||
else
|
||
PUFF("\n%s%s%s", (CHKw(q, Show_HIROWS) && 'R' == p->state)
|
||
? q->capclr_rowhigh : q->capclr_rownorm
|
||
, rbuf
|
||
, q->eolcap);
|
||
#undef makeCOL
|
||
#undef makeVAR
|
||
#undef pages2K
|
||
} // end: task_show
|
||
|
||
|
||
/*
|
||
* Squeeze as many tasks as we can into a single window,
|
||
* after sorting the passed proc table. */
|
||
static int window_show (WIN_t *q, int wmax) {
|
||
/* the isBUSY macro determines if a task is 'active' --
|
||
it returns true if some cpu was used since the last sample.
|
||
( actual 'running' tasks will be a subset of those selected ) */
|
||
#define isBUSY(x) (0 < x->pcpu)
|
||
#define winMIN(a,b) ((a < b) ? a : b)
|
||
int i, lwin;
|
||
|
||
// Display Column Headings -- and distract 'em while we sort (maybe)
|
||
PUFF("\n%s%s%s", q->capclr_hdr, q->columnhdr, q->eolcap);
|
||
|
||
if (CHKw(q, Show_FOREST))
|
||
forest_create(q);
|
||
else {
|
||
if (CHKw(q, Qsrt_NORMAL)) Frame_srtflg = 1; // this is always needed!
|
||
else Frame_srtflg = -1;
|
||
Frame_ctimes = CHKw(q, Show_CTIMES); // this & next, only maybe
|
||
Frame_cmdlin = CHKw(q, Show_CMDLIN);
|
||
qsort(q->ppt, Frame_maxtask, sizeof(proc_t*), Fieldstab[q->rc.sortindx].sort);
|
||
}
|
||
|
||
i = q->begtask;
|
||
if (i >= Frame_maxtask) i = q->begtask = Frame_maxtask - 1;
|
||
lwin = 1; // 1 for the column header
|
||
wmax = winMIN(wmax, q->winlines + 1); // ditto for winlines, too
|
||
|
||
/* the least likely scenario is also the most costly, so we'll try to avoid
|
||
checking some stuff with each iteration and check it just once... */
|
||
if (CHKw(q, Show_IDLEPS) && !q->usrseltyp)
|
||
while (i < Frame_maxtask && lwin < wmax) {
|
||
task_show(q, q->ppt[i++], NULL);
|
||
++lwin;
|
||
}
|
||
else
|
||
while (i < Frame_maxtask && lwin < wmax) {
|
||
if ((CHKw(q, Show_IDLEPS) || isBUSY(q->ppt[i]))
|
||
&& user_matched(q, q->ppt[i])) {
|
||
task_show(q, q->ppt[i], NULL);
|
||
++lwin;
|
||
}
|
||
++i;
|
||
}
|
||
|
||
return lwin;
|
||
#undef winMIN
|
||
#undef isBUSY
|
||
} // end: window_show
|
||
|
||
/*###### Entry point plus two ##########################################*/
|
||
|
||
/*
|
||
* This guy's just a *Helper* function who apportions the
|
||
* remaining amount of screen real estate under multiple windows */
|
||
static void framehlp (int wix, int max) {
|
||
int i, size, wins;
|
||
|
||
// calc remaining number of visible windows
|
||
for (i = wix, wins = 0; i < GROUPSMAX; i++)
|
||
if (CHKw(&Winstk[i], Show_TASKON))
|
||
++wins;
|
||
|
||
if (!wins) wins = 1;
|
||
// deduct 1 line/window for the columns heading
|
||
size = (max - wins) / wins;
|
||
|
||
/* for subject window, set WIN_t winlines to either the user's
|
||
maxtask (1st choice) or our 'foxized' size calculation
|
||
(foxized adj. - 'fair and balanced') */
|
||
Winstk[wix].winlines =
|
||
Winstk[wix].rc.maxtasks ? Winstk[wix].rc.maxtasks : size;
|
||
} // end: framehlp
|
||
|
||
|
||
/*
|
||
* Initiate the Frame Display Update cycle at someone's whim!
|
||
* This routine doesn't do much, mostly he just calls others.
|
||
*
|
||
* (Whoa, wait a minute, we DO caretake those row guys, plus)
|
||
* (we CALCULATE that IMPORTANT Max_lines thingy so that the)
|
||
* (*subordinate* functions invoked know WHEN the user's had)
|
||
* (ENOUGH already. And at Frame End, it SHOULD be apparent)
|
||
* (WE am d'MAN -- clearing UNUSED screen LINES and ensuring)
|
||
* (the CURSOR is STUCK in just the RIGHT place, know what I)
|
||
* (mean? Huh, "doesn't DO MUCH"! Never, EVER think or say)
|
||
* (THAT about THIS function again, Ok? Good that's better.)
|
||
*
|
||
* (ps. we ARE the UNEQUALED justification KING of COMMENTS!)
|
||
* (No, I don't mean significance/relevance, only alignment.)
|
||
*/
|
||
static void frame_make (void) {
|
||
WIN_t *w = Curwin; // avoid gcc bloat with a local copy
|
||
int i, scrlins;
|
||
|
||
// deal with potential signals since the last time around...
|
||
if (Frames_paused) pause_pgm();
|
||
if (Frames_resize) zap_fieldstab();
|
||
|
||
// whoa first time, gotta' prime the pump...
|
||
if (-1 == Pseudo_row) {
|
||
procs_refresh();
|
||
putp(Cap_clr_scr);
|
||
usleep(LIB_USLEEP);
|
||
} else
|
||
putp(Batch ? "\n\n" : Cap_home);
|
||
|
||
putp(Cap_curs_hide);
|
||
procs_refresh();
|
||
sysinfo_refresh(0);
|
||
|
||
Tree_idx = Pseudo_row = Msg_row = scrlins = 0;
|
||
summary_show();
|
||
Max_lines = (Screen_rows - Msg_row) - 1;
|
||
|
||
if (!Rc.mode_altscr) {
|
||
// only 1 window to show so, piece o' cake
|
||
w->winlines = w->rc.maxtasks ? w->rc.maxtasks : Max_lines;
|
||
scrlins = window_show(w, Max_lines);
|
||
} else {
|
||
// maybe NO window is visible but assume, pieces o' cakes
|
||
for (i = 0 ; i < GROUPSMAX; i++) {
|
||
if (CHKw(&Winstk[i], Show_TASKON)) {
|
||
framehlp(i, Max_lines - scrlins);
|
||
scrlins += window_show(&Winstk[i], Max_lines - scrlins);
|
||
}
|
||
if (Max_lines <= scrlins) break;
|
||
}
|
||
}
|
||
|
||
/* clear to end-of-screen (critical if last window is 'idleps off'),
|
||
then put the cursor in-its-place, and rid us of any prior frame's msg
|
||
(main loop must iterate such that we're always called before sleep) */
|
||
if (scrlins < Max_lines) {
|
||
putp(Cap_nl_clreos);
|
||
PSU_CLREOS(Pseudo_row);
|
||
}
|
||
if (VIZISw(w) && CHKw(w, View_SCROLL)) show_scroll();
|
||
else PUTT("%s%s", tg2(0, Msg_row), Cap_clr_eol);
|
||
putp(Cap_curs_norm);
|
||
fflush(stdout);
|
||
|
||
/* we'll deem any terminal not supporting tgoto as dumb and disable
|
||
the normal non-interactive output optimization... */
|
||
if (!Cap_can_goto) PSU_CLREOS(0);
|
||
} // end: frame_make
|
||
|
||
|
||
/*
|
||
* duh... */
|
||
int main (int dont_care_argc, char **argv) {
|
||
(void)dont_care_argc;
|
||
before(*argv);
|
||
// +-------------+
|
||
wins_stage_1(); // top (sic) slice
|
||
configs_read(); // > spread etc, <
|
||
parse_args(&argv[1]); // > lean stuff, <
|
||
whack_terminal(); // > onions etc. <
|
||
wins_stage_2(); // as bottom slice
|
||
// +-------------+
|
||
|
||
for (;;) {
|
||
struct timeval tv;
|
||
|
||
frame_make();
|
||
|
||
if (0 < Loops) --Loops;
|
||
if (!Loops) bye_bye(NULL);
|
||
|
||
tv.tv_sec = Rc.delay_time;
|
||
tv.tv_usec = (Rc.delay_time - (int)Rc.delay_time) * 1000000;
|
||
|
||
if (Batch)
|
||
select(0, NULL, NULL, NULL, &tv);
|
||
else {
|
||
fd_set fs;
|
||
|
||
FD_ZERO(&fs);
|
||
FD_SET(STDIN_FILENO, &fs);
|
||
if (0 < select(STDIN_FILENO + 1, &fs, NULL, NULL, &tv))
|
||
do_key(keyin(0));
|
||
/* note: above select might have been interrupted by some signal
|
||
in which case the return code would have been -1 and an
|
||
integer (volatile) switch set. that in turn will cause
|
||
frame_make() to deal with it if we survived the handler
|
||
*/
|
||
}
|
||
}
|
||
return 0;
|
||
} // end: main
|