0232430bef
Author: Paolo Pantaleo <paolopantaleo@gmail.com> Bug-Debian: http://bugs.debian.org/351065
3416 lines
110 KiB
C
3416 lines
110 KiB
C
/* top.c - Source file: show Linux processes */
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/*
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* Copyright (c) 2002, by: James C. Warner
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* All rights reserved. 8921 Hilloway Road
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* Eden Prairie, Minnesota 55347 USA
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* <warnerjc@worldnet.att.net>
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*
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* This file may be used subject to the terms and conditions of the
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* GNU Library General Public License Version 2, or any later version
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* at your option, as published by the Free Software Foundation.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* For their contributions to this program, the author wishes to thank:
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* Albert D. Cahalan, <albert@users.sf.net>
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* Craig Small, <csmall@small.dropbear.id.au>
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*
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* Changes by Albert Cahalan, 2002-2004.
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*/
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#include <sys/ioctl.h>
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#include <sys/resource.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#include <curses.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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// Foul POS defines all sorts of stuff...
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#include <term.h>
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#undef tab
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#include <termios.h>
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#include <time.h>
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#include <unistd.h>
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#include <values.h>
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#include "proc/devname.h"
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#include "proc/wchan.h"
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#include "proc/procps.h"
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#include "proc/readproc.h"
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#include "proc/escape.h"
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#include "proc/sig.h"
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#include "proc/sysinfo.h"
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#include "proc/version.h"
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#include "proc/whattime.h"
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#include "top.h"
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/*###### Miscellaneous global stuff ####################################*/
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/* The original and new terminal attributes */
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static struct termios Savedtty,
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Rawtty;
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static int Ttychanged = 0;
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/* Program name used in error messages and local 'rc' file name */
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static char *Myname;
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/* Name of user config file (dynamically constructed) and our
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'Current' rcfile contents, initialized with defaults but may be
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overridden with the local rcfile (old or new-style) values */
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static char Rc_name [OURPATHSZ];
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static RCF_t Rc = DEF_RCFILE;
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/* The run-time acquired page size */
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static unsigned Page_size;
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static unsigned page_to_kb_shift;
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/* SMP Irix/Solaris mode */
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static int Cpu_tot;
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static double pcpu_max_value; // usually 99.9, for %CPU display
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/* assume no IO-wait stats, overridden if linux 2.5.41 */
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static const char *States_fmts = STATES_line2x4;
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/* Specific process id monitoring support */
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static pid_t Monpids [MONPIDMAX] = { 0 };
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static int Monpidsidx = 0;
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/* A postponed error message */
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static char Msg_delayed [SMLBUFSIZ];
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static int Msg_awaiting = 0;
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// This is the select() timeout. Clear it in sig handlers to avoid a race.
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// (signal happens just as we are about to select() and thus does not
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// break us out of the select(), causing us to delay until timeout)
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static volatile struct timeval tv;
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#define ZAP_TIMEOUT do{tv.tv_usec=0; tv.tv_sec=0;}while(0);
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/* Configurable Display support ##################################*/
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/* Current screen dimensions.
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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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// 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 avoid_last_column;
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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
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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
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/* Some cap's stuff to reduce runtime calls --
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to accomodate 'Batch' mode, they begin life as empty strings */
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static char Cap_clr_eol [CAPBUFSIZ],
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Cap_clr_eos [CAPBUFSIZ],
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Cap_clr_scr [CAPBUFSIZ],
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Cap_rmam [CAPBUFSIZ],
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Cap_smam [CAPBUFSIZ],
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Cap_curs_norm [CAPBUFSIZ],
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Cap_curs_huge [CAPBUFSIZ],
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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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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 wins_resize 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_scrn;
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static int Pseudo_row, Pseudo_cols, Pseudo_size;
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#ifndef STDOUT_IOLBF
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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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/* ////////////////////////////////////////////////////////////// */
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/* Special Section: multiple windows/field groups ---------------*/
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/* The pointers to our four WIN_t's, and which of those is considered
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the 'current' window (ie. which window is associated with any summ
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info displayed and to which window commands are directed) */
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static WIN_t Winstk [GROUPSMAX],
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*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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(first 2 persist beyond a single frame, changed infrequently) */
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static int Frames_libflags; // PROC_FILLxxx flags (0 = need new)
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//atic int Frames_maxcmdln; // the largest from the 4 windows
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static unsigned Frame_maxtask; // last known number of active tasks
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// ie. current 'size' of proc table
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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 float Frame_tscale; // so we can '*' vs. '/' WHEN 'pcpu'
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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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/* ////////////////////////////////////////////////////////////// */
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/*###### Sort callbacks ################################################*/
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/*
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* These happen to be coded in the same order as the enum 'pflag'
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* values. Note that 2 of these routines serve double duty --
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* 2 columns each.
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*/
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SCB_NUMx(P_PID, XXXID)
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SCB_NUMx(P_PPD, ppid)
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SCB_STRx(P_URR, ruser)
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SCB_NUMx(P_UID, euid)
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SCB_STRx(P_URE, euser)
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SCB_STRx(P_GRP, egroup)
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SCB_NUMx(P_TTY, tty)
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SCB_NUMx(P_PRI, priority)
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SCB_NUMx(P_NCE, nice)
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SCB_NUMx(P_CPN, processor)
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SCB_NUM1(P_CPU, pcpu)
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// also serves P_TM2 !
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static int sort_P_TME (const proc_t **P, const proc_t **Q)
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{
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if (Frame_ctimes) {
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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_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))
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return SORT_lt;
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if ( ((*P)->utime + (*P)->stime) > ((*Q)->utime + (*Q)->stime))
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return SORT_gt;
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}
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return SORT_eq;
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}
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SCB_NUM1(P_VRT, size)
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SCB_NUM2(P_SWP, size, resident)
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SCB_NUM1(P_RES, resident) // also serves P_MEM !
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SCB_NUM1(P_COD, trs)
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SCB_NUM1(P_DAT, drs)
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SCB_NUM1(P_SHR, share)
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SCB_NUM1(P_FLT, maj_flt)
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SCB_NUM1(P_DRT, dt)
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SCB_NUMx(P_STA, state)
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static int sort_P_CMD (const proc_t **P, const proc_t **Q)
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{
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/* if a process doesn't have a cmdline, we'll consider it a kernel thread
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-- since displayed tasks are given special treatment, we must too */
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if (Frame_cmdlin && ((*P)->cmdline || (*Q)->cmdline)) {
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if (!(*Q)->cmdline) return Frame_srtflg * -1;
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if (!(*P)->cmdline) return Frame_srtflg;
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return Frame_srtflg *
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strncmp((*Q)->cmdline[0], (*P)->cmdline[0], (unsigned)Curwin->maxcmdln);
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}
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// this part also handles the compare if both are kernel threads
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return Frame_srtflg * strcmp((*Q)->cmd, (*P)->cmd);
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}
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SCB_NUM1(P_WCH, wchan)
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SCB_NUM1(P_FLG, flags)
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/* ///////////////////////////////// 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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{
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return P->pid - Q->pid;
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}
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/*###### Tiny useful routine(s) ########################################*/
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/*
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* This routine isolates ALL user INPUT and ensures that we
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* wont be mixing I/O from stdio and low-level read() requests */
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static int chin (int ech, char *buf, unsigned cnt)
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{
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int rc;
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fflush(stdout);
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if (!ech)
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rc = read(STDIN_FILENO, buf, cnt);
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else {
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tcsetattr(STDIN_FILENO, TCSAFLUSH, &Savedtty);
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rc = read(STDIN_FILENO, buf, cnt);
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tcsetattr(STDIN_FILENO, TCSAFLUSH, &Rawtty);
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}
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// may be the beginning of a lengthy escape sequence
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tcflush(STDIN_FILENO, TCIFLUSH);
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return rc; // note: we do NOT produce a vaid 'string'
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}
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// 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, ...)
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{
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static char buf[BIGBUFSIZ]; // with help stuff, our buffer
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va_list va; // requirements exceed 1k
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va_start(va, fmts);
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vsnprintf(buf, sizeof(buf), fmts, va);
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va_end(va);
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return (const char *)buf;
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}
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// This guy is just our way of avoiding the overhead of the standard
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// strcat function (should the caller choose to participate)
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static inline char *scat (char *restrict dst, const char *restrict src)
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{
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while (*dst) dst++;
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while ((*(dst++) = *(src++)));
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return --dst;
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}
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// Trim the rc file lines and any 'open_psdb_message' result which arrives
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// with an inappropriate newline (thanks to 'sysmap_mmap')
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static char *strim_0 (char *str)
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{
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static const char ws[] = "\b\e\f\n\r\t\v\x9b"; // 0x9b is an escape
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char *p;
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if ((p = strpbrk(str, ws))) *p = 0;
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return str;
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}
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// This guy just facilitates Batch and protects against dumb ttys
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// -- we'd 'inline' him but he's only called twice per frame,
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// yet used in many other locations.
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static const char *tg2 (int x, int y)
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{
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return Cap_can_goto ? tgoto(cursor_address, x, y) : "";
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}
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/*###### Exit/Interrput routines #######################################*/
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// The usual program end -- called only by functions in this section.
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static void bye_bye (FILE *fp, int eno, const char *str) NORETURN;
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static void bye_bye (FILE *fp, int eno, const char *str)
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{
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if (!Batch)
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tcsetattr(STDIN_FILENO, TCSAFLUSH, &Savedtty);
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putp(tg2(0, Screen_rows));
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putp(Cap_curs_norm);
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putp(Cap_smam);
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putp("\n");
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fflush(stdout);
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//#define ATEOJ_REPORT
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#ifdef ATEOJ_REPORT
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fprintf(fp,
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"\n\tTerminal: %s"
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"\n\t device = %s, ncurses = v%s"
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"\n\t max_colors = %d, max_pairs = %d"
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"\n\t Cap_can_goto = %s"
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"\n\t Screen_cols = %d, Screen_rows = %d"
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"\n\t Max_lines = %d, most recent Pseudo_size = %d"
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"\n"
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#ifdef PRETENDNOCAP
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, "dumb"
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#else
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, termname()
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#endif
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, ttyname(STDOUT_FILENO), NCURSES_VERSION
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, max_colors, max_pairs
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, Cap_can_goto ? "yes" : "No!"
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, Screen_cols, Screen_rows
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, Max_lines, Pseudo_size
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);
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fprintf(fp,
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#ifndef STDOUT_IOLBF
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"\n\t Stdout_buf = %d, BUFSIZ = %u"
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#endif
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"\n\tWindows and Curwin->"
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"\n\t sizeof(WIN_t) = %u, GROUPSMAX = %d"
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"\n\t rc.winname = %s, grpname = %s"
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"\n\t rc.winflags = %08x, maxpflgs = %d"
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"\n\t rc.fieldscur = %s"
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"\n\t winlines = %d, rc.maxtasks = %d, maxcmdln = %d"
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"\n\t rc.sortindx = %d"
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"\n"
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#ifndef STDOUT_IOLBF
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, sizeof(Stdout_buf), (unsigned)BUFSIZ
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#endif
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, sizeof(WIN_t), GROUPSMAX
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, Curwin->rc.winname, Curwin->grpname
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, Curwin->rc.winflags, Curwin->maxpflgs
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, Curwin->rc.fieldscur
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, Curwin->winlines, Curwin->rc.maxtasks, Curwin->maxcmdln
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, Curwin->rc.sortindx
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);
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fprintf(fp,
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"\n\tProgram"
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"\n\t Linux version = %u.%u.%u, %s"
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"\n\t Hertz = %u (%u bytes, %u-bit time)"
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"\n\t Page_size = %d, Cpu_tot = %d, sizeof(proc_t) = %u"
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"\n\t sizeof(CPU_t) = %u, sizeof(HST_t) = %u (%u HST_t's/Page)"
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"\n"
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, LINUX_VERSION_MAJOR(linux_version_code)
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, LINUX_VERSION_MINOR(linux_version_code)
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, LINUX_VERSION_PATCH(linux_version_code)
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, procps_version
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, (unsigned)Hertz, sizeof(Hertz), sizeof(Hertz) * 8
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, Page_size, Cpu_tot, sizeof(proc_t)
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, sizeof(CPU_t), sizeof(HST_t), Page_size / sizeof(HST_t)
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);
|
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|
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#endif
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|
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if (str) fputs(str, fp);
|
||
exit(eno);
|
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}
|
||
|
||
|
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/*
|
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* Normal end of execution.
|
||
* catches:
|
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* SIGALRM, SIGHUP, SIGINT, SIGPIPE, SIGQUIT and SIGTERM */
|
||
// FIXME: can't do this shit in a signal handler
|
||
static void end_pgm (int sig) NORETURN;
|
||
static void end_pgm (int sig)
|
||
{
|
||
if(sig)
|
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sig |= 0x80; // for a proper process exit code
|
||
bye_bye(stdout, sig, NULL);
|
||
}
|
||
|
||
|
||
/*
|
||
* Standard error handler to normalize the look of all err o/p */
|
||
static void std_err (const char *str) NORETURN;
|
||
static void std_err (const char *str)
|
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{
|
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static char buf[SMLBUFSIZ];
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||
|
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fflush(stdout);
|
||
/* we'll use our own buffer so callers can still use fmtmk() and, yes the
|
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leading tab is not the standard convention, but the standard is wrong
|
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-- OUR msg won't get lost in screen clutter, like so many others! */
|
||
snprintf(buf, sizeof(buf), "\t%s: %s\n", Myname, str);
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||
if (!Ttychanged) {
|
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fprintf(stderr, "%s\n", buf);
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exit(1);
|
||
}
|
||
/* not to worry, he'll change our exit code to 1 due to 'buf' */
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bye_bye(stderr, 1, buf);
|
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}
|
||
|
||
|
||
/*
|
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* Standard out handler */
|
||
static void std_out (const char *str) NORETURN;
|
||
static void std_out (const char *str)
|
||
{
|
||
static char buf[SMLBUFSIZ];
|
||
|
||
fflush(stdout);
|
||
/* 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);
|
||
if (!Ttychanged) {
|
||
fprintf(stdout, "%s\n", buf);
|
||
exit(0);
|
||
}
|
||
bye_bye(stdout, 0, buf);
|
||
}
|
||
|
||
|
||
/*
|
||
* Suspend ourself.
|
||
* catches:
|
||
* SIGTSTP, SIGTTIN and SIGTTOU */
|
||
// FIXME: can't do this shit in a signal handler!
|
||
static void suspend (int dont_care_sig)
|
||
{
|
||
(void)dont_care_sig;
|
||
/* reset terminal */
|
||
tcsetattr(STDIN_FILENO, TCSAFLUSH, &Savedtty);
|
||
putp(tg2(0, Screen_rows));
|
||
putp(Cap_curs_norm);
|
||
putp(Cap_smam);
|
||
putp("\n");
|
||
fflush(stdout);
|
||
raise(SIGSTOP);
|
||
/* later, after SIGCONT... */
|
||
ZAP_TIMEOUT
|
||
if (!Batch)
|
||
tcsetattr(STDIN_FILENO, TCSAFLUSH, &Rawtty);
|
||
putp(Cap_clr_scr);
|
||
putp(Cap_rmam);
|
||
}
|
||
|
||
|
||
/*###### Misc Color/Display support ####################################*/
|
||
|
||
/* macro to test if a basic (non-color) capability is valid
|
||
thanks: Floyd Davidson <floyd@ptialaska.net> */
|
||
#define tIF(s) s ? s : ""
|
||
#define CAPCOPY(dst,src) src && strcpy(dst,src)
|
||
|
||
/*
|
||
* Make the appropriate caps/color strings and set some
|
||
* lengths which are used to distinguish twix the displayed
|
||
* columns and an actual printed row!
|
||
* 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)
|
||
{
|
||
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) {
|
||
CAPCOPY(Cap_clr_eol, clr_eol);
|
||
CAPCOPY(Cap_clr_eos, clr_eos);
|
||
CAPCOPY(Cap_clr_scr, clear_screen);
|
||
|
||
if (!eat_newline_glitch) { // we like the eat_newline_glitch
|
||
CAPCOPY(Cap_rmam, exit_am_mode);
|
||
CAPCOPY(Cap_smam, enter_am_mode);
|
||
if (!*Cap_rmam || !*Cap_smam) { // need both
|
||
*Cap_rmam = '\0';
|
||
*Cap_smam = '\0';
|
||
if (auto_right_margin) {
|
||
avoid_last_column = 1;
|
||
}
|
||
}
|
||
}
|
||
|
||
CAPCOPY(Cap_curs_huge, cursor_visible);
|
||
CAPCOPY(Cap_curs_norm, cursor_normal);
|
||
CAPCOPY(Cap_home, cursor_home);
|
||
CAPCOPY(Cap_norm, exit_attribute_mode);
|
||
CAPCOPY(Cap_reverse, enter_reverse_mode);
|
||
|
||
snprintf(Caps_off, sizeof(Caps_off), "%s%s", Cap_norm, tIF(orig_pair));
|
||
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 */
|
||
strcpy(q->cap_bold, CHKw(q, View_NOBOLD) ? Cap_norm : tIF(enter_bold_mode));
|
||
if (CHKw(q, Show_COLORS) && max_colors > 0) {
|
||
strcpy(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';
|
||
strcpy(q->capclr_msg, Cap_reverse);
|
||
strcpy(q->capclr_pmt, q->cap_bold);
|
||
strcpy(q->capclr_hdr, Cap_reverse);
|
||
strcpy(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);
|
||
q->len_rownorm = strlen(q->capclr_rownorm);
|
||
q->len_rowhigh = strlen(q->capclr_rowhigh);
|
||
|
||
#undef tIF
|
||
}
|
||
|
||
|
||
// Show an error, but not right now.
|
||
// Due to the postponed opening of ksym, using open_psdb_message,
|
||
// if P_WCH had been selected and the program is restarted, the
|
||
// message would otherwise be displayed prematurely.
|
||
static void msg_save (const char *fmts, ...) __attribute__((format(printf,1,2)));
|
||
static void msg_save (const char *fmts, ...)
|
||
{
|
||
char tmp[SMLBUFSIZ];
|
||
va_list va;
|
||
|
||
va_start(va, fmts);
|
||
vsnprintf(tmp, sizeof(tmp), fmts, va);
|
||
va_end(va);
|
||
/* we'll add some extra attention grabbers to whatever this is */
|
||
snprintf(Msg_delayed, sizeof(Msg_delayed), "\a*** %s ***", strim_0(tmp));
|
||
Msg_awaiting = 1;
|
||
}
|
||
|
||
|
||
/*
|
||
* Show an error message (caller may include a '\a' for sound) */
|
||
static void show_msg (const char *str)
|
||
{
|
||
PUTT("%s%s %s %s%s",
|
||
tg2(0, Msg_row),
|
||
Curwin->capclr_msg,
|
||
str,
|
||
Caps_off,
|
||
Cap_clr_eol
|
||
);
|
||
fflush(stdout);
|
||
sleep(MSG_SLEEP);
|
||
Msg_awaiting = 0;
|
||
}
|
||
|
||
|
||
/*
|
||
* Show an input prompt + larger cursor */
|
||
static void show_pmt (const char *str)
|
||
{
|
||
PUTT("%s%s%s: %s%s",
|
||
tg2(0, Msg_row),
|
||
Curwin->capclr_pmt,
|
||
str,
|
||
Cap_curs_huge,
|
||
Caps_off
|
||
);
|
||
fflush(stdout);
|
||
}
|
||
|
||
|
||
/*
|
||
* 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 single byte in the range of:
|
||
* \01 through \10 (in decimalizee, 1 - 8)
|
||
* and is used to select an 'attribute' from a capabilities table
|
||
* which 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.
|
||
* (and as for tabs, gimme 1 more color then no worries, mate) */
|
||
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, Cap_bold, = \00, \01, \02 |
|
||
| Sum_color, = \03 |
|
||
| Msg_color, Pmt_color, = \04, \05 |
|
||
| Hdr_color, = \06 |
|
||
| Row_color_high, = \07 |
|
||
| Row_color_norm }; = \10 [octal!] |
|
||
+------------------------------------------------------+ */
|
||
char lin[BIGBUFSIZ], row[ROWBUFSIZ], tmp[ROWBUFSIZ];
|
||
char *rp, *cap, *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 */
|
||
size_t amt = lin_end - glob;
|
||
if(amt > sizeof lin - 1)
|
||
amt = sizeof lin - 1; // shit happens
|
||
memcpy(lin, glob, amt);
|
||
/* zero terminate this part and prepare to parse substrings */
|
||
lin[amt] = '\0';
|
||
room = Screen_cols;
|
||
sub_beg = sub_end = lin;
|
||
*(rp = row) = '\0';
|
||
|
||
while (*sub_beg) {
|
||
switch (*sub_end) {
|
||
case 0: /* no end delim, captab makes normal */
|
||
*(sub_end + 1) = '\0'; /* extend str end, then fall through */
|
||
case 1 ... 8:
|
||
cap = Curwin->captab[(int)*sub_end];
|
||
*sub_end = '\0';
|
||
snprintf(tmp, sizeof(tmp), "%s%.*s%s", cap, room, sub_beg, Caps_off);
|
||
amt = strlen(tmp);
|
||
if(rp - row + amt + 1 > sizeof row)
|
||
goto overflow; // shit happens
|
||
rp = scat(rp, tmp);
|
||
room -= (sub_end - sub_beg);
|
||
sub_beg = ++sub_end;
|
||
break;
|
||
default: /* nothin' special, just text */
|
||
++sub_end;
|
||
}
|
||
if (unlikely(0 >= room)) break; /* skip substrings that won't fit */
|
||
}
|
||
overflow:
|
||
if (interact) PUTT("%s%s\n", row, Cap_clr_eol);
|
||
else PUFF("%s%s\n", row, Cap_clr_eol);
|
||
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... */
|
||
if (*glob) PUTT("%.*s", Screen_cols, glob);
|
||
}
|
||
|
||
|
||
/*###### Small Utility routines ########################################*/
|
||
|
||
// Get a string from the user
|
||
static char *ask4str (const char *prompt)
|
||
{
|
||
static char buf[GETBUFSIZ];
|
||
|
||
show_pmt(prompt);
|
||
memset(buf, '\0', sizeof(buf));
|
||
chin(1, buf, sizeof(buf) - 1);
|
||
putp(Cap_curs_norm);
|
||
return strim_0(buf);
|
||
}
|
||
|
||
|
||
// Get a float from the user
|
||
static float get_float (const char *prompt)
|
||
{
|
||
char *line;
|
||
float f;
|
||
|
||
if (!(*(line = ask4str(prompt)))) return -1;
|
||
// note: we're not allowing negative floats
|
||
if (strcspn(line, ",.1234567890")) {
|
||
show_msg("\aNot valid");
|
||
return -1;
|
||
}
|
||
sscanf(line, "%f", &f);
|
||
return f;
|
||
}
|
||
|
||
|
||
// Get an integer from the user
|
||
static int get_int (const char *prompt)
|
||
{
|
||
char *line;
|
||
int n;
|
||
|
||
if (!(*(line = ask4str(prompt)))) return -1;
|
||
// note: we've got to allow negative ints (renice)
|
||
if (strcspn(line, "-1234567890")) {
|
||
show_msg("\aNot valid");
|
||
return -1;
|
||
}
|
||
sscanf(line, "%d", &n);
|
||
return n;
|
||
}
|
||
|
||
|
||
/*
|
||
* 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 unsigned 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_SCALE
|
||
static char nextup[] = { 'K', 'M', 'G', 'T', 0 };
|
||
#else
|
||
static char nextup[] = { 'k', 'm', 'g', 't', 0 };
|
||
#endif
|
||
static char buf[TNYBUFSIZ];
|
||
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; *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), "%ld%c", (unsigned long)(num / *dp), *up))
|
||
return buf;
|
||
}
|
||
/* well shoot, this outta' fit... */
|
||
return "?";
|
||
}
|
||
|
||
|
||
/*
|
||
* Do some scaling stuff.
|
||
* format 'tics' to fit 'width'. */
|
||
static const char *scale_tics (TIC_t tics, const int width)
|
||
{
|
||
#ifdef CASEUP_SCALE
|
||
#define HH "%uH"
|
||
#define DD "%uD"
|
||
#define WW "%uW"
|
||
#else
|
||
#define HH "%uh"
|
||
#define DD "%ud"
|
||
#define WW "%uw"
|
||
#endif
|
||
static char buf[TNYBUFSIZ];
|
||
unsigned long nt; // narrow time, for speed on 32-bit
|
||
unsigned cc; // centiseconds
|
||
unsigned nn; // multi-purpose whatever
|
||
|
||
nt = (tics * 100ull) / Hertz;
|
||
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
|
||
}
|
||
|
||
#include <pwd.h>
|
||
|
||
static int selection_type;
|
||
static uid_t selection_uid;
|
||
|
||
// FIXME: this is "temporary" code we hope
|
||
static int good_uid(const proc_t *restrict const pp){
|
||
switch(selection_type){
|
||
case 'p':
|
||
return 1;
|
||
case 0:
|
||
return 1;
|
||
case 'U':
|
||
if (pp->ruid == selection_uid) return 1;
|
||
if (pp->suid == selection_uid) return 1;
|
||
if (pp->fuid == selection_uid) return 1;
|
||
// FALLTHROUGH
|
||
case 'u':
|
||
if (pp->euid == selection_uid) return 1;
|
||
// FALLTHROUGH
|
||
default:
|
||
; // don't know what it is; find bugs fast
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
// swiped from ps, and ought to be in libproc
|
||
static const char *parse_uid(const char *restrict const str, uid_t *restrict const ret){
|
||
struct passwd *passwd_data;
|
||
char *endp;
|
||
unsigned long num;
|
||
static const char uidrange[] = "User ID out of range.";
|
||
static const char uidexist[] = "User name does not exist.";
|
||
num = strtoul(str, &endp, 0);
|
||
if(*endp != '\0'){ /* hmmm, try as login name */
|
||
passwd_data = getpwnam(str);
|
||
if(!passwd_data) return uidexist;
|
||
num = passwd_data->pw_uid;
|
||
}
|
||
if(num > 0xfffffffeUL) return uidrange;
|
||
*ret = num;
|
||
return 0;
|
||
}
|
||
|
||
|
||
/*###### Library Alternatives ##########################################*/
|
||
|
||
/*
|
||
* 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 (unsigned numb) MALLOC;
|
||
static void *alloc_c (unsigned numb)
|
||
{
|
||
void * p;
|
||
|
||
if (!numb) ++numb;
|
||
if (!(p = calloc(1, numb)))
|
||
std_err("failed memory allocate");
|
||
return p;
|
||
}
|
||
|
||
static void *alloc_r (void *q, unsigned numb) MALLOC;
|
||
static void *alloc_r (void *q, unsigned numb)
|
||
{
|
||
void *p;
|
||
|
||
if (!numb) ++numb;
|
||
if (!(p = realloc(q, numb)))
|
||
std_err("failed memory allocate");
|
||
return p;
|
||
}
|
||
|
||
|
||
/*
|
||
* 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 FILE *fp = NULL;
|
||
int i;
|
||
int num;
|
||
// enough for a /proc/stat CPU line (not the intr line)
|
||
char buf[SMLBUFSIZ];
|
||
|
||
/* 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")))
|
||
std_err(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
|
||
if (!fgets(buf, sizeof(buf), fp)) std_err("failed /proc/stat read");
|
||
cpus[Cpu_tot].x = 0; // FIXME: can't tell by kernel version number
|
||
cpus[Cpu_tot].y = 0; // FIXME: can't tell by kernel version number
|
||
cpus[Cpu_tot].z = 0; // FIXME: can't tell by kernel version number
|
||
num = 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
|
||
);
|
||
if (num < 4)
|
||
std_err("failed /proc/stat read");
|
||
|
||
// and just in case we're 2.2.xx compiled without SMP support...
|
||
if (Cpu_tot == 1) {
|
||
cpus[1].id = 0;
|
||
memcpy(cpus, &cpus[1], sizeof(CPU_t));
|
||
}
|
||
|
||
// now value each separate cpu's tics
|
||
for (i = 0; 1 < Cpu_tot && i < Cpu_tot; i++) {
|
||
if (!fgets(buf, sizeof(buf), fp)) std_err("failed /proc/stat read");
|
||
cpus[i].x = 0; // FIXME: can't tell by kernel version number
|
||
cpus[i].y = 0; // FIXME: can't tell by kernel version number
|
||
cpus[i].z = 0; // FIXME: can't tell by kernel version number
|
||
num = 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
|
||
);
|
||
if (num < 4)
|
||
std_err("failed /proc/stat read");
|
||
}
|
||
return cpus;
|
||
}
|
||
|
||
|
||
/*
|
||
* 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)
|
||
{
|
||
static HST_t *hist_sav = NULL;
|
||
static HST_t *hist_new = NULL;
|
||
static unsigned hist_siz = 0; // number of structs
|
||
static unsigned maxt_sav; // prior frame's max tasks
|
||
TIC_t tics;
|
||
|
||
if (unlikely(!this)) {
|
||
static struct timeval oldtimev;
|
||
struct timeval timev;
|
||
struct timezone timez;
|
||
HST_t *hist_tmp;
|
||
float et;
|
||
|
||
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_tscale = 100.0f / ((float)Hertz * (float)et * (Rc.mode_irixps ? 1 : Cpu_tot));
|
||
maxt_sav = Frame_maxtask;
|
||
Frame_maxtask = Frame_running = Frame_sleepin = Frame_stopped = Frame_zombied = 0;
|
||
|
||
// reuse memory each time around
|
||
hist_tmp = hist_sav;
|
||
hist_sav = hist_new;
|
||
hist_new = hist_tmp;
|
||
// prep for our binary search by sorting the last frame's HST_t's
|
||
qsort(hist_sav, maxt_sav, sizeof(HST_t), (QFP_t)sort_HST_t);
|
||
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;
|
||
}
|
||
|
||
if (unlikely(Frame_maxtask+1 >= hist_siz)) {
|
||
hist_siz = hist_siz * 5 / 4 + 100; // grow by at least 25%
|
||
hist_sav = alloc_r(hist_sav, sizeof(HST_t) * hist_siz);
|
||
hist_new = alloc_r(hist_new, sizeof(HST_t) * hist_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! */
|
||
hist_new[Frame_maxtask].pid = this->tid;
|
||
hist_new[Frame_maxtask].tics = tics = (this->utime + this->stime);
|
||
|
||
#if 0
|
||
{ int i;
|
||
int lo = 0;
|
||
int hi = maxt_sav - 1;
|
||
|
||
// find matching entry from previous frame and make ticks elapsed
|
||
while (lo <= hi) {
|
||
i = (lo + hi) / 2;
|
||
if (this->tid < hist_sav[i].pid)
|
||
hi = i - 1;
|
||
else if (likely(this->tid > hist_sav[i].pid))
|
||
lo = i + 1;
|
||
else {
|
||
tics -= hist_sav[i].tics;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
#else
|
||
{
|
||
HST_t tmp;
|
||
const HST_t *ptr;
|
||
tmp.pid = this->tid;
|
||
ptr = bsearch(&tmp, hist_sav, maxt_sav, sizeof tmp, sort_HST_t);
|
||
if(ptr) tics -= ptr->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;
|
||
// if (Frames_maxcmdln) { }
|
||
// shout this to the world with the final call (or us the next time in)
|
||
Frame_maxtask++;
|
||
}
|
||
|
||
|
||
/*
|
||
* 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 proc_t **procs_refresh (proc_t **table, int flags)
|
||
{
|
||
#define PTRsz sizeof(proc_t *)
|
||
#define ENTsz sizeof(proc_t)
|
||
static unsigned savmax = 0; // first time, Bypass: (i)
|
||
proc_t *ptsk = (proc_t *)-1; // first time, Force: (ii)
|
||
unsigned curmax = 0; // every time (jeeze)
|
||
PROCTAB* PT;
|
||
static int show_threads_was_enabled = 0; // optimization
|
||
|
||
prochlp(NULL); // prep for a new frame
|
||
if (Monpidsidx)
|
||
PT = openproc(flags, Monpids);
|
||
else
|
||
PT = openproc(flags);
|
||
|
||
// i) Allocated Chunks: *Existing* table; refresh + reuse
|
||
if (!(CHKw(Curwin, Show_THREADS))) {
|
||
while (curmax < savmax) {
|
||
if (table[curmax]->cmdline) {
|
||
unsigned idx;
|
||
// Skip if Show_THREADS was never enabled
|
||
if (show_threads_was_enabled) {
|
||
for (idx = curmax + 1; idx < savmax; idx++) {
|
||
if (table[idx]->cmdline == table[curmax]->cmdline)
|
||
table[idx]->cmdline = NULL;
|
||
}
|
||
}
|
||
free(*table[curmax]->cmdline);
|
||
table[curmax]->cmdline = NULL;
|
||
}
|
||
if (unlikely(!(ptsk = readproc(PT, table[curmax])))) break;
|
||
prochlp(ptsk); // tally & complete this proc_t
|
||
++curmax;
|
||
}
|
||
}
|
||
else { // show each thread in a process separately
|
||
while (curmax < savmax) {
|
||
proc_t *ttsk;
|
||
if (unlikely(!(ptsk = readproc(PT, NULL)))) break;
|
||
show_threads_was_enabled = 1;
|
||
while (curmax < savmax) {
|
||
unsigned idx;
|
||
if (table[curmax]->cmdline) {
|
||
// threads share the same cmdline storage. 'table' is
|
||
// qsort()ed, so must look through the rest of the table.
|
||
for (idx = curmax + 1; idx < savmax; idx++) {
|
||
if (table[idx]->cmdline == table[curmax]->cmdline)
|
||
table[idx]->cmdline = NULL;
|
||
}
|
||
free(*table[curmax]->cmdline); // only free once
|
||
table[curmax]->cmdline = NULL;
|
||
}
|
||
if (!(ttsk = readtask(PT, ptsk, table[curmax]))) break;
|
||
prochlp(ttsk);
|
||
++curmax;
|
||
}
|
||
free(ptsk); // readproc() proc_t not used
|
||
}
|
||
}
|
||
|
||
// ii) Unallocated Chunks: *New* or *Existing* table; extend + fill
|
||
if (!(CHKw(Curwin, Show_THREADS))) {
|
||
while (ptsk) {
|
||
// realloc as we go, keeping 'table' ahead of 'currmax++'
|
||
table = alloc_r(table, (curmax + 1) * PTRsz);
|
||
// here, readproc will allocate the underlying proc_t stg
|
||
if (likely(ptsk = readproc(PT, NULL))) {
|
||
prochlp(ptsk); // tally & complete this proc_t
|
||
table[curmax++] = ptsk;
|
||
}
|
||
}
|
||
}
|
||
else { // show each thread in a process separately
|
||
while (ptsk) {
|
||
proc_t *ttsk;
|
||
if (likely(ptsk = readproc(PT, NULL))) {
|
||
show_threads_was_enabled = 1;
|
||
while (1) {
|
||
table = alloc_r(table, (curmax + 1) * PTRsz);
|
||
if (!(ttsk = readtask(PT, ptsk, NULL))) break;
|
||
prochlp(ttsk);
|
||
table[curmax++] = ttsk;
|
||
}
|
||
free(ptsk); // readproc() proc_t not used
|
||
}
|
||
}
|
||
}
|
||
closeproc(PT);
|
||
|
||
// iii) Chunkless: make 'eot' entry, after ensuring proc_t exists
|
||
if (curmax >= savmax) {
|
||
table = alloc_r(table, (curmax + 1) * PTRsz);
|
||
// here, we must allocate the underlying proc_t stg ourselves
|
||
table[curmax] = alloc_c(ENTsz);
|
||
savmax = curmax + 1;
|
||
}
|
||
// this frame's end, but not necessarily end of allocated space
|
||
table[curmax]->tid = -1;
|
||
return table;
|
||
|
||
#undef PTRsz
|
||
#undef ENTsz
|
||
}
|
||
|
||
/*###### Field Table/RCfile compatability support ######################*/
|
||
|
||
// from either 'stat' or 'status' (preferred), via bits not otherwise used
|
||
#define L_EITHER PROC_SPARE_1
|
||
// These are the Fieldstab.lflg values used here and in reframewins.
|
||
// (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_CMDLINE L_EITHER | PROC_FILLARG
|
||
#define L_EUSER PROC_FILLUSR
|
||
#define L_RUSER L_status | PROC_FILLUSR
|
||
#define L_GROUP L_status | PROC_FILLGRP
|
||
#define L_NONE 0
|
||
// for reframewins and summary_show 1st pass
|
||
#define L_DEFAULT PROC_FILLSTAT
|
||
|
||
// a temporary macro, soon to be undef'd...
|
||
#define SF(f) (QFP_t)sort_P_ ## f
|
||
|
||
/* 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[] = {
|
||
/* .lflg anomolies:
|
||
P_UID, 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 reframewins (cmd/cmdline)
|
||
L_EITHER - must L_status, else 64-bit math, __udivdi3 on 32-bit !
|
||
keys head fmts width scale sort desc lflg
|
||
------ ----------- ------- ------ ----- ----- ---------------------- -------- */
|
||
{ "AaAa", " PID", " %5u", -1, -1, SF(PID), "Process Id", L_NONE },
|
||
{ "BbBb", " PPID", " %5u", -1, -1, SF(PPD), "Parent Process Pid", L_EITHER },
|
||
{ "CcQq", " RUSER ", " %-8.8s", -1, -1, SF(URR), "Real user name", L_RUSER },
|
||
{ "DdCc", " UID", " %4u", -1, -1, SF(UID), "User Id", L_NONE },
|
||
{ "EeDd", " USER ", " %-8.8s", -1, -1, SF(URE), "User Name", L_EUSER },
|
||
{ "FfNn", " GROUP ", " %-8.8s", -1, -1, SF(GRP), "Group Name", L_GROUP },
|
||
{ "GgGg", " TTY ", " %-8.8s", 8, -1, SF(TTY), "Controlling Tty", L_stat },
|
||
{ "HhHh", " PR", " %3d", -1, -1, SF(PRI), "Priority", L_stat },
|
||
{ "IiIi", " NI", " %3d", -1, -1, SF(NCE), "Nice value", L_stat },
|
||
{ "JjYy", " #C", " %2u", -1, -1, SF(CPN), "Last used cpu (SMP)", L_stat },
|
||
{ "KkEe", " %CPU", " %#4.1f", -1, -1, SF(CPU), "CPU usage", L_stat },
|
||
{ "LlWw", " TIME", " %6.6s", 6, -1, SF(TME), "CPU Time", L_stat },
|
||
{ "MmRr", " TIME+ ", " %9.9s", 9, -1, SF(TME), "CPU Time, hundredths", L_stat },
|
||
{ "NnFf", " %MEM", " %#4.1f", -1, -1, SF(RES), "Memory usage (RES)", L_statm },
|
||
{ "OoMm", " VIRT", " %5.5s", 5, SK_Kb, SF(VRT), "Virtual Image (kb)", L_statm },
|
||
{ "PpOo", " SWAP", " %4.4s", 4, SK_Kb, SF(SWP), "Swapped size (kb)", L_statm },
|
||
{ "QqTt", " RES", " %4.4s", 4, SK_Kb, SF(RES), "Resident size (kb)", L_statm },
|
||
{ "RrKk", " CODE", " %4.4s", 4, SK_Kb, SF(COD), "Code size (kb)", L_statm },
|
||
{ "SsLl", " DATA", " %4.4s", 4, SK_Kb, SF(DAT), "Data+Stack size (kb)", L_statm },
|
||
{ "TtPp", " SHR", " %4.4s", 4, SK_Kb, SF(SHR), "Shared Mem size (kb)", L_statm },
|
||
{ "UuJj", " nFLT", " %4.4s", 4, SK_no, SF(FLT), "Page Fault count", L_stat },
|
||
{ "VvSs", " nDRT", " %4.4s", 4, SK_no, SF(DRT), "Dirty Pages count", L_statm },
|
||
{ "WwVv", " S", " %c", -1, -1, SF(STA), "Process Status", L_EITHER },
|
||
// next entry's special: '.head' will be formatted using table entry's own
|
||
// '.fmts' plus runtime supplied conversion args!
|
||
{ "XxXx", " COMMAND", " %-*.*s", -1, -1, SF(CMD), "Command name/line", L_EITHER },
|
||
{ "YyUu", " WCHAN ", " %-9.9s", -1, -1, SF(WCH), "Sleeping in Function", L_stat },
|
||
// next entry's special: the 0's will be replaced with '.'!
|
||
{ "ZzZz", " Flags ", " %08lx", -1, -1, SF(FLG), "Task Flags <sched.h>", L_stat },
|
||
#if 0
|
||
{ "..Qq", " A", " %4.4s", 4, SK_no, SF(PID), "Accessed Page count", L_stat },
|
||
{ "..Nn", " TRS", " %4.4s", 4, SK_Kb, SF(PID), "Code in memory (kb)", L_stat },
|
||
{ "..Rr", " WP", " %4.4s", 4, SK_no, SF(PID), "Unwritable Pages", L_stat },
|
||
{ "Jj[{", " #C", " %2u", -1, -1, SF(CPN), "Last used cpu (SMP)", L_stat },
|
||
{ "..\\|"," Bad", " %2u", -1, -1, SF(CPN), "-- must ignore | --", 0 },
|
||
{ "..]}", " Bad", " %2u", -1, -1, SF(CPN), "-- not used --", 0 },
|
||
{ "..^~", " Bad", " %2u", -1, -1, SF(CPN), "-- not used --", 0 },
|
||
#endif
|
||
};
|
||
#undef SF
|
||
|
||
|
||
/* All right, those-that-follow -- Listen Up!
|
||
* For the above table keys and the following present/future rc file
|
||
* compatibility support, you have Mr. Albert D. Cahalan to thank.
|
||
* He must have been in a 'Christmas spirit'. Were it left to me,
|
||
* this top would never have gotten that close to the former top's
|
||
* crufty rcfile. Not only is it illogical, it's odoriferous !
|
||
*/
|
||
|
||
// used as 'to' and/or 'from' args in the ft_xxx utilities...
|
||
#define FT_NEW_fmt 0
|
||
#define FT_OLD_fmt 2
|
||
|
||
|
||
#if 0
|
||
// convert, or 0 for failure
|
||
static int ft_cvt_char (const int fr, const int to, int c) {
|
||
int j = -1;
|
||
|
||
while (++j < MAXTBL(Fieldstab)) {
|
||
if (c == Fieldstab[j].keys[fr]) return Fieldstab[j].keys[to];
|
||
if (c == Fieldstab[j].keys[fr+1]) return Fieldstab[j].keys[to+1];
|
||
}
|
||
return 0;
|
||
}
|
||
#endif
|
||
|
||
|
||
// convert
|
||
static inline int ft_get_char (const int fr, int i) {
|
||
int c;
|
||
if (i < 0) return 0;
|
||
if (i >= MAXTBL(Fieldstab)) return 0;
|
||
c = Fieldstab[i].keys[fr];
|
||
if (c == '.') c = 0; // '.' marks a bad entry
|
||
return c;
|
||
}
|
||
|
||
|
||
#if 0
|
||
// convert, or -1 for failure
|
||
static int ft_get_idx (const int fr, int c) {
|
||
int j = -1;
|
||
|
||
while (++j < MAXTBL(Fieldstab)) {
|
||
if (c == Fieldstab[j].keys[fr]) return j;
|
||
if (c == Fieldstab[j].keys[fr+1]) return j;
|
||
}
|
||
return -1;
|
||
}
|
||
#endif
|
||
|
||
|
||
// convert, or NULL for failure
|
||
static const FLD_t *ft_get_ptr (const int fr, int c) {
|
||
int j = -1;
|
||
|
||
while (++j < MAXTBL(Fieldstab)) {
|
||
if (c == Fieldstab[j].keys[fr]) return Fieldstab+j;
|
||
if (c == Fieldstab[j].keys[fr+1]) return Fieldstab+j;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
|
||
#if 0
|
||
// convert, or NULL for failure
|
||
static const FLD_t *ft_idx_to_ptr (const int i) {
|
||
if (i < 0) return NULL;
|
||
if (i >= MAXTBL(Fieldstab)) return NULL;
|
||
return Fieldstab + i;
|
||
}
|
||
|
||
|
||
// convert, or -1 for failure
|
||
static int ft_ptr_to_idx (const FLD_t *p) {
|
||
int i;
|
||
if (p < Fieldstab) return -1;
|
||
i = p - Fieldstab;
|
||
if (i >= MAXTBL(Fieldstab)) return -1;
|
||
return i;
|
||
}
|
||
#endif
|
||
|
||
|
||
#if 0
|
||
static void rc_bugless (const RCF_t *const rc) {
|
||
const RCW_t *w;
|
||
int i = 0;
|
||
|
||
fprintf(stderr,"\n%d %d %f %d\n",
|
||
rc->mode_altscr, rc->mode_irixps, rc->delay_time, rc->win_index
|
||
);
|
||
while(i < 4) {
|
||
w = &rc->win[i++];
|
||
fprintf(stderr, "<%s> <%s> %d %08x %d %d %d %d %d\n",
|
||
w->winname, w->fieldscur, w->sortindx, w->winflags, w->maxtasks,
|
||
w->summclr, w->msgsclr, w->headclr, w->taskclr
|
||
);
|
||
}
|
||
}
|
||
#endif
|
||
|
||
|
||
// '$HOME/Rc_name' contains multiple lines - 2 global + 3 per window.
|
||
// line 1: an eyecatcher, with a shameless advertisement
|
||
// line 2: an id, Mode_altcsr, Mode_irixps, Delay_time and Curwin.
|
||
// For each of the 4 windows:
|
||
// line a: contains winname, fieldscur
|
||
// line b: contains winflags, sortindx, maxtasks
|
||
// line c: contains summclr, msgsclr, headclr, taskclr
|
||
// line d: if present, would crash procps-3.1.1
|
||
static int rc_read_new (const char *const buf, RCF_t *rc) {
|
||
int i;
|
||
int cnt;
|
||
const char *cp;
|
||
|
||
cp = strstr(buf, "\n\n" RCF_EYECATCHER);
|
||
if (!cp) return -1;
|
||
cp = strchr(cp + 2, '\n');
|
||
if (!cp++) return -2;
|
||
|
||
cnt = sscanf(cp, "Id:a, Mode_altscr=%d, Mode_irixps=%d, Delay_time=%f, Curwin=%d\n",
|
||
&rc->mode_altscr, &rc->mode_irixps, &rc->delay_time, &rc->win_index
|
||
);
|
||
if (cnt != 4) return -3;
|
||
cp = strchr(cp, '\n');
|
||
if (!cp++) return -4;
|
||
|
||
for (i = 0; i < GROUPSMAX; i++) {
|
||
RCW_t *ptr = &rc->win[i];
|
||
cnt = sscanf(cp, "%3s\tfieldscur=%31s\n", ptr->winname, ptr->fieldscur);
|
||
if (cnt != 2) return 5+100*i; // OK to have less than 4 windows
|
||
if (WINNAMSIZ <= strlen(ptr->winname)) return -6;
|
||
if (strlen(DEF_FIELDS) != strlen(ptr->fieldscur)) return -7;
|
||
cp = strchr(cp, '\n');
|
||
if (!cp++) return -(8+100*i);
|
||
|
||
cnt = sscanf(cp, "\twinflags=%d, sortindx=%u, maxtasks=%d \n",
|
||
&ptr->winflags, &ptr->sortindx, &ptr->maxtasks
|
||
);
|
||
if (cnt != 3) return -(9+100*i);
|
||
cp = strchr(cp, '\n');
|
||
if (!cp++) return -(10+100*i);
|
||
|
||
cnt = sscanf(cp, "\tsummclr=%d, msgsclr=%d, headclr=%d, taskclr=%d \n",
|
||
&ptr->summclr, &ptr->msgsclr, &ptr->headclr, &ptr->taskclr
|
||
);
|
||
if (cnt != 4) return -(11+100*i);
|
||
cp = strchr(cp, '\n');
|
||
if (!cp++) return -(12+100*i);
|
||
while (*cp == '\t') { // skip unknown per-window settings
|
||
cp = strchr(cp, '\n');
|
||
if (!cp++) return -(13+100*i);
|
||
}
|
||
}
|
||
return 13;
|
||
}
|
||
|
||
|
||
|
||
static int rc_read_old (const char *const buf, RCF_t *rc) {
|
||
const char std[] = "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZzJj......";
|
||
const char old[] = "AaBb..CcDd..GgHhIiYyEeWw..FfMmOoTtKkLlPpJjSsVvXxUuZz[{QqNnRr";
|
||
unsigned u;
|
||
const char *cp;
|
||
unsigned c_show = 0;
|
||
int badchar = 0; // allow a limited number of duplicates and junk
|
||
|
||
char scoreboard[256];
|
||
memset(scoreboard, '\0', sizeof scoreboard);
|
||
|
||
cp = buf+2; // skip the "\n\n" we stuck at the beginning
|
||
u = 0;
|
||
for (;;) {
|
||
const char *tmp;
|
||
int c = *cp++;
|
||
if (u+1 >= sizeof rc->win[0].fieldscur) return -1;
|
||
if (c == '\0') return -2;
|
||
if (c == '\n') break;
|
||
if (c & ~0x7f) return -3;
|
||
if (~c & 0x20) c_show |= 1 << (c & 0x1f); // 0x20 means lowercase means hidden
|
||
if (scoreboard[c|0xe0u]) badchar++; // duplicates not allowed
|
||
scoreboard[c|0xe0u]++;
|
||
tmp = strchr(old,c);
|
||
if (!tmp) continue;
|
||
c = *((tmp-old)+std);
|
||
if (c == '.') continue;
|
||
if (scoreboard[c&0x1fu]) badchar++; // duplicates not allowed
|
||
scoreboard[c&0x1fu]++;
|
||
rc->win[0].fieldscur[u++] = c;
|
||
}
|
||
rc->win[0].fieldscur[u++] = '\0';
|
||
if (u < 21) return -6; // catch junk, not good files (had 23 chars in one)
|
||
if (u > 33) return -7; // catch junk, not good files (had 29 chars in one)
|
||
// fprintf(stderr, "badchar: %d\n", badchar); sleep(2);
|
||
if (badchar > 8) return -8; // too much junk
|
||
if (!c_show) return -9; // nothing was shown
|
||
|
||
// rest of file is optional, but better look right if it exists
|
||
if (!*cp) return 12;
|
||
if (*cp < '2' || *cp > '9') return -13; // stupid, and why isn't '1' valid?
|
||
rc->delay_time = *cp - '0';
|
||
|
||
memset(scoreboard, '\0', sizeof(scoreboard));
|
||
for (;;) {
|
||
int c = *++cp & 0xffu; // protect scoreboard[] from negative char
|
||
if (!c) return -14; // not OK to hit EOL w/o '\n'
|
||
if (c == '\n') break;
|
||
switch (c) {
|
||
case ' ':
|
||
case '.':
|
||
case '0' ... '9':
|
||
return -15; // not supposed to have digits here
|
||
|
||
// case 's': // mostly for global rcfile
|
||
// rc->mode_secure = 1;
|
||
// break;
|
||
case 'S':
|
||
rc->win[0].winflags |= Show_CTIMES;
|
||
break;
|
||
case 'c':
|
||
rc->win[0].winflags |= Show_CMDLIN;
|
||
break;
|
||
case 'i':
|
||
rc->win[0].winflags &= ~Show_IDLEPS;
|
||
break;
|
||
case 'H':
|
||
rc->win[0].winflags |= Show_THREADS;
|
||
break;
|
||
case 'm':
|
||
rc->win[0].winflags &= ~View_MEMORY;
|
||
break;
|
||
case 'l':
|
||
rc->win[0].winflags &= ~View_LOADAV;
|
||
break;
|
||
case 't':
|
||
rc->win[0].winflags &= ~View_STATES;
|
||
break;
|
||
case 'I':
|
||
rc->mode_irixps = 0;
|
||
break;
|
||
|
||
case 'M':
|
||
c = 0; // for scoreboard
|
||
rc->win[0].sortindx = P_MEM;
|
||
break;
|
||
case 'P':
|
||
c = 0; // for scoreboard
|
||
rc->win[0].sortindx = P_CPU;
|
||
break;
|
||
case 'A': // supposed to be start_time
|
||
c = 0; // for scoreboard
|
||
rc->win[0].sortindx = P_PID;
|
||
break;
|
||
case 'T':
|
||
c = 0; // for scoreboard
|
||
rc->win[0].sortindx = P_TM2;
|
||
break;
|
||
case 'N':
|
||
c = 0; // for scoreboard
|
||
rc->win[0].sortindx = P_PID;
|
||
break;
|
||
|
||
default:
|
||
// just ignore it, except for the scoreboard of course
|
||
break;
|
||
}
|
||
if (scoreboard[c]) return -16; // duplicates not allowed
|
||
scoreboard[c] = 1;
|
||
}
|
||
return 17;
|
||
}
|
||
|
||
|
||
static void rc_write_new (FILE *fp) {
|
||
int i;
|
||
|
||
fprintf(fp, RCF_EYECATCHER "\"%s with windows\"\t\t# shameless braggin'\n",
|
||
Myname
|
||
);
|
||
fprintf(fp, RCF_DEPRECATED
|
||
"Mode_altscr=%d, Mode_irixps=%d, Delay_time=%.3f, Curwin=%u\n",
|
||
Rc.mode_altscr, Rc.mode_irixps, Rc.delay_time, (unsigned)(Curwin - Winstk)
|
||
);
|
||
for (i = 0; i < GROUPSMAX; i++) {
|
||
char buf[40];
|
||
char *cp = Winstk[i].rc.fieldscur;
|
||
int j = 0;
|
||
|
||
while (j < 36) {
|
||
int c = *cp++ & 0xff;
|
||
switch (c) {
|
||
case '.':
|
||
case 1 ... ' ':
|
||
case 0x7f ... 0xff:
|
||
continue; // throw away junk (some of it)
|
||
default:
|
||
buf[j++] = c; // gets the '\0' too
|
||
}
|
||
if (!c) break;
|
||
}
|
||
fprintf(fp, "%s\tfieldscur=%s\n",
|
||
Winstk[i].rc.winname, buf
|
||
);
|
||
fprintf(fp, "\twinflags=%d, sortindx=%d, maxtasks=%d\n",
|
||
Winstk[i].rc.winflags, 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
|
||
);
|
||
}
|
||
}
|
||
|
||
|
||
static const char *rc_write_whatever (void) {
|
||
FILE *fp = fopen(Rc_name, "w");
|
||
|
||
if (!fp) return strerror(errno);
|
||
rc_write_new(fp);
|
||
fclose(fp);
|
||
return NULL;
|
||
}
|
||
|
||
|
||
/*###### Startup routines ##############################################*/
|
||
|
||
// No mater what *they* say, we handle the really really BIG and
|
||
// IMPORTANT stuff upon which all those lessor functions depend!
|
||
static void before (char *me)
|
||
{
|
||
int i;
|
||
|
||
/* setup our program name -- big! */
|
||
Myname = strrchr(me, '/');
|
||
if (Myname) ++Myname; else Myname = me;
|
||
|
||
/* establish cpu particulars -- even bigger! */
|
||
Cpu_tot = smp_num_cpus;
|
||
if (linux_version_code > LINUX_VERSION(2, 5, 41))
|
||
States_fmts = STATES_line2x5;
|
||
if (linux_version_code >= LINUX_VERSION(2, 6, 0)) // grrr... only some 2.6.0-testX :-(
|
||
States_fmts = STATES_line2x6;
|
||
if (linux_version_code >= LINUX_VERSION(2, 6, 11))
|
||
States_fmts = STATES_line2x7;
|
||
|
||
/* get virtual page size -- nearing huge! */
|
||
Page_size = getpagesize();
|
||
i = Page_size;
|
||
while(i>1024){
|
||
i >>= 1;
|
||
page_to_kb_shift++;
|
||
}
|
||
|
||
pcpu_max_value = 99.9;
|
||
|
||
Fieldstab[P_CPN].head = " P";
|
||
Fieldstab[P_CPN].fmts = " %1u";
|
||
if(smp_num_cpus>9){
|
||
Fieldstab[P_CPN].head = " P";
|
||
Fieldstab[P_CPN].fmts = " %2u";
|
||
}
|
||
if(smp_num_cpus>99){
|
||
Fieldstab[P_CPN].head = " P";
|
||
Fieldstab[P_CPN].fmts = " %3u";
|
||
}
|
||
if(smp_num_cpus>999){
|
||
Fieldstab[P_CPN].head = " P";
|
||
Fieldstab[P_CPN].fmts = " %4u";
|
||
}
|
||
|
||
{
|
||
static char pid_fmt[6];
|
||
unsigned pid_digits = get_pid_digits();
|
||
if(pid_digits<4) pid_digits=4;
|
||
snprintf(pid_fmt, sizeof pid_fmt, " %%%uu", pid_digits);
|
||
Fieldstab[P_PID].fmts = pid_fmt;
|
||
Fieldstab[P_PID].head = " PID" + 10 - pid_digits;
|
||
Fieldstab[P_PPD].fmts = pid_fmt;
|
||
Fieldstab[P_PPD].head = " PPID" + 10 - pid_digits;
|
||
}
|
||
}
|
||
|
||
|
||
// Config file read *helper* function.
|
||
// Anything missing won't show as a choice in the field editor,
|
||
// so make sure there is exactly one of each letter.
|
||
//
|
||
// Due to Rik blindly accepting damem's broken patches, procps-2.0.1x
|
||
// has 3 ("three"!!!) instances of "#C", "LC", or "CPU". Fix that too.
|
||
static void confighlp (char *fields) {
|
||
unsigned upper[PFLAGSSIZ];
|
||
unsigned lower[PFLAGSSIZ];
|
||
char c;
|
||
char *cp;
|
||
|
||
memset(upper, '\0', sizeof upper);
|
||
memset(lower, '\0', sizeof lower);
|
||
|
||
cp = fields;
|
||
for (;;) {
|
||
c = *cp++;
|
||
if (!c) break;
|
||
if(isupper(c)) upper[c&0x1f]++;
|
||
else lower[c&0x1f]++;
|
||
}
|
||
|
||
c = 'a';
|
||
while (c <= 'z') {
|
||
if (upper[c&0x1f] && lower[c&0x1f]) {
|
||
lower[c&0x1f] = 0; // got both, so wipe out unseen column
|
||
for (;;) {
|
||
cp = strchr(fields, c);
|
||
if (cp) memmove(cp, cp+1, strlen(cp));
|
||
else break;
|
||
}
|
||
}
|
||
while (lower[c&0x1f] > 1) { // got too many a..z
|
||
lower[c&0x1f]--;
|
||
cp = strchr(fields, c);
|
||
memmove(cp, cp+1, strlen(cp));
|
||
}
|
||
while (upper[c&0x1f] > 1) { // got too many A..Z
|
||
upper[c&0x1f]--;
|
||
cp = strchr(fields, toupper(c));
|
||
memmove(cp, cp+1, strlen(cp));
|
||
}
|
||
if (!upper[c&0x1f] && !lower[c&0x1f]) { // both missing
|
||
lower[c&0x1f]++;
|
||
memmove(fields+1, fields, strlen(fields)+1);
|
||
fields[0] = c;
|
||
}
|
||
c++;
|
||
}
|
||
}
|
||
|
||
|
||
// First attempt to read the /etc/rcfile which contains two lines
|
||
// consisting of the secure mode switch and an update interval.
|
||
// It's presence limits what ordinary users are allowed to do.
|
||
// (it's actually an old-style config file)
|
||
//
|
||
// Then build the local rcfile name and try to read a crufty old-top
|
||
// rcfile (whew, odoriferous), which may contain an embedded new-style
|
||
// rcfile. Whether embedded or standalone, new-style rcfile values
|
||
// will always override that crufty stuff!
|
||
// note: If running in secure mode via the /etc/rcfile,
|
||
// Delay_time will be ignored except for root.
|
||
static void configs_read (void)
|
||
{
|
||
const RCF_t def_rcf = DEF_RCFILE;
|
||
char fbuf[MEDBUFSIZ];
|
||
int i, fd;
|
||
RCF_t rcf;
|
||
float delay = Rc.delay_time;
|
||
|
||
// read part of an old-style config in /etc/toprc
|
||
fd = open(SYS_RCFILESPEC, O_RDONLY);
|
||
if (fd > 0) {
|
||
ssize_t num;
|
||
num = read(fd, fbuf, sizeof(fbuf) - 1);
|
||
if (num > 0) {
|
||
const char *sec = strchr(fbuf, 's');
|
||
const char *eol = strchr(fbuf, '\n');
|
||
if (eol) {
|
||
const char *two = eol + 1; // line two
|
||
if (sec < eol) Secure_mode = !!sec;
|
||
eol = strchr(two, '\n');
|
||
if (eol && eol > two && isdigit(*two)) Rc.delay_time = atof(two);
|
||
}
|
||
}
|
||
close(fd);
|
||
}
|
||
|
||
if (getenv("TOPRC")) { // should switch on Myname before documenting this?
|
||
// not the most optimal here...
|
||
snprintf(Rc_name, sizeof(Rc_name), "%s", getenv("TOPRC"));
|
||
} else {
|
||
snprintf(Rc_name, sizeof(Rc_name), ".%src", Myname); // eeew...
|
||
if (getenv("HOME"))
|
||
snprintf(Rc_name, sizeof(Rc_name), "%s/.%src", getenv("HOME"), Myname);
|
||
}
|
||
|
||
rcf = def_rcf;
|
||
fd = open(Rc_name, O_RDONLY);
|
||
if (fd > 0) {
|
||
ssize_t num;
|
||
num = read(fd, fbuf+2, sizeof(fbuf) -3);
|
||
if (num > 0) {
|
||
fbuf[0] = '\n';
|
||
fbuf[1] = '\n';
|
||
fbuf[num+2] = '\0';
|
||
//fprintf(stderr,"rc_read_old returns %d\n",rc_read_old(fbuf, &rcf));
|
||
//sleep(2);
|
||
if (rc_read_new(fbuf, &rcf) < 0) {
|
||
rcf = def_rcf; // on failure, maybe mangled
|
||
if (rc_read_old(fbuf, &rcf) < 0) rcf = def_rcf;
|
||
}
|
||
delay = rcf.delay_time;
|
||
}
|
||
close(fd);
|
||
}
|
||
|
||
// update Rc defaults, establish a Curwin and fix up the window stack
|
||
Rc.mode_altscr = rcf.mode_altscr;
|
||
Rc.mode_irixps = rcf.mode_irixps;
|
||
if (rcf.win_index >= GROUPSMAX) rcf.win_index = 0;
|
||
Curwin = &Winstk[rcf.win_index];
|
||
for (i = 0; i < GROUPSMAX; i++) {
|
||
memcpy(&Winstk[i].rc, &rcf.win[i], sizeof rcf.win[i]);
|
||
confighlp(Winstk[i].rc.fieldscur);
|
||
}
|
||
|
||
if(Rc.mode_irixps && smp_num_cpus>1){
|
||
// good for 100 CPUs per process
|
||
pcpu_max_value = 9999.0;
|
||
Fieldstab[P_CPU].fmts = " %4.0f";
|
||
}
|
||
|
||
// lastly, establish the true runtime secure mode and delay time
|
||
if (!getuid()) Secure_mode = 0;
|
||
if (!Secure_mode) Rc.delay_time = delay;
|
||
}
|
||
|
||
|
||
// 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
|
||
-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
|
||
-c,i,S act as toggles (not 'on' switches) for enhanced 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[] =
|
||
" -hv | -bcisSH -d delay -n iterations [-u user | -U user] -p pid [,pid ...]";
|
||
float tmp_delay = MAXFLOAT;
|
||
char *p;
|
||
|
||
while (*args) {
|
||
const char *cp = *(args++);
|
||
|
||
while (*cp) {
|
||
switch (*cp) {
|
||
case '\0':
|
||
case '-':
|
||
break;
|
||
case 'b':
|
||
Batch = 1;
|
||
break;
|
||
case 'c':
|
||
TOGw(Curwin, Show_CMDLIN);
|
||
break;
|
||
case 'd':
|
||
if (cp[1]) ++cp;
|
||
else if (*args) cp = *args++;
|
||
else std_err("-d requires argument");
|
||
/* a negative delay will be dealt with shortly... */
|
||
if (sscanf(cp, "%f", &tmp_delay) != 1)
|
||
std_err(fmtmk("bad delay '%s'", cp));
|
||
break;
|
||
case 'H':
|
||
TOGw(Curwin, Show_THREADS);
|
||
break;
|
||
case 'h':
|
||
case 'v': case 'V':
|
||
std_out(fmtmk("%s\nusage:\t%s%s", procps_version, Myname, usage));
|
||
case 'i':
|
||
TOGw(Curwin, Show_IDLEPS);
|
||
Curwin->rc.maxtasks = 0;
|
||
break;
|
||
case 'n':
|
||
if (cp[1]) cp++;
|
||
else if (*args) cp = *args++;
|
||
else std_err("-n requires argument");
|
||
if (sscanf(cp, "%d", &Loops) != 1 || Loops < 1)
|
||
std_err(fmtmk("bad iterations arg '%s'", cp));
|
||
break;
|
||
case 'p':
|
||
do {
|
||
if (selection_type && selection_type != 'p') std_err("conflicting process selection");
|
||
selection_type = 'p';
|
||
if (cp[1]) cp++;
|
||
else if (*args) cp = *args++;
|
||
else std_err("-p argument missing");
|
||
if (Monpidsidx >= MONPIDMAX)
|
||
std_err(fmtmk("pid limit (%d) exceeded", MONPIDMAX));
|
||
if (sscanf(cp, "%d", &Monpids[Monpidsidx]) != 1 || Monpids[Monpidsidx] < 0)
|
||
std_err(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':
|
||
do {
|
||
const char *errmsg;
|
||
if (selection_type /* && selection_type != 'u' */) std_err("conflicting process selection");
|
||
if (cp[1]) cp++;
|
||
else if (*args) cp = *args++;
|
||
else std_err("-u missing name");
|
||
errmsg = parse_uid(cp, &selection_uid);
|
||
if (errmsg) std_err(errmsg);
|
||
selection_type = 'u';
|
||
cp += snprintf(Curwin->colusrnam, USRNAMSIZ-1, "%s", cp); // FIXME: junk
|
||
} while(0);
|
||
break;
|
||
case 'U':
|
||
do {
|
||
const char *errmsg;
|
||
if (selection_type /* && selection_type != 'U' */) std_err("conflicting process selection");
|
||
if (cp[1]) cp++;
|
||
else if (*args) cp = *args++;
|
||
else std_err("-u missing name");
|
||
errmsg = parse_uid(cp, &selection_uid);
|
||
if (errmsg) std_err(errmsg);
|
||
selection_type = 'U';
|
||
cp += snprintf(Curwin->colusrnam, USRNAMSIZ-1, "%s", cp); // FIXME: junk
|
||
} while(0);
|
||
break;
|
||
default :
|
||
std_err(fmtmk("unknown argument '%c'\nusage:\t%s%s"
|
||
, *cp, Myname, usage));
|
||
|
||
} /* end: switch (*cp) */
|
||
|
||
/* advance cp and jump over any numerical args used above */
|
||
if (*cp) cp += strspn(&cp[1], "- ,.1234567890") + 1;
|
||
} /* end: while (*cp) */
|
||
} /* end: while (*args) */
|
||
|
||
/* fixup delay time, maybe... */
|
||
if (MAXFLOAT != tmp_delay) {
|
||
if (Secure_mode || tmp_delay < 0)
|
||
msg_save("Delay time Not changed");
|
||
else
|
||
Rc.delay_time = tmp_delay;
|
||
}
|
||
}
|
||
|
||
|
||
/*
|
||
* Set up the terminal attributes */
|
||
static void whack_terminal (void)
|
||
{
|
||
struct termios newtty;
|
||
|
||
if (Batch) {
|
||
setupterm("dumb", STDOUT_FILENO, NULL);
|
||
return;
|
||
}
|
||
setupterm(NULL, STDOUT_FILENO, NULL);
|
||
if (tcgetattr(STDIN_FILENO, &Savedtty) == -1)
|
||
std_err("failed tty get");
|
||
newtty = Savedtty;
|
||
newtty.c_lflag &= ~(ICANON | ECHO);
|
||
newtty.c_oflag &= ~(TAB3);
|
||
newtty.c_cc[VMIN] = 1;
|
||
newtty.c_cc[VTIME] = 0;
|
||
|
||
Ttychanged = 1;
|
||
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &newtty) == -1) {
|
||
putp(Cap_clr_scr);
|
||
std_err(fmtmk("failed tty set: %s", strerror(errno)));
|
||
}
|
||
tcgetattr(STDIN_FILENO, &Rawtty);
|
||
#ifndef STDOUT_IOLBF
|
||
// thanks anyway stdio, but we'll manage buffering at the frame level...
|
||
setbuffer(stdout, Stdout_buf, sizeof(Stdout_buf));
|
||
#endif
|
||
putp(Cap_clr_scr);
|
||
fflush(stdout);
|
||
}
|
||
|
||
|
||
/*###### Field Selection/Ordering routines #############################*/
|
||
|
||
|
||
// Display each field represented in the Fields Table along with its
|
||
// description and mark (with a leading asterisk) fields associated
|
||
// with upper case letter(s) in the passed 'fields string'.
|
||
//
|
||
// After all fields have been displayed, some extra explanatory
|
||
// text may also be output
|
||
static void display_fields (const char *fields, const char *xtra)
|
||
{
|
||
#define yRSVD 3
|
||
const char *p;
|
||
int i, cmax = Screen_cols / 2, rmax = Screen_rows - yRSVD;
|
||
|
||
/* we're relying on callers to first clear the screen and thus avoid screen
|
||
flicker if they're too lazy to handle their own asterisk (*) logic */
|
||
putp(Curwin->cap_bold);
|
||
for (i = 0; fields[i]; ++i) {
|
||
const FLD_t *f = ft_get_ptr(FT_NEW_fmt, fields[i]);
|
||
int b = isupper(fields[i]);
|
||
|
||
if (!f) continue; // hey, should be std_err!
|
||
for (p = f->head; ' ' == *p; ++p) // advance past any leading spaces
|
||
;
|
||
PUTT("%s%s%c %c: %-10s = %s",
|
||
tg2((i / rmax) * cmax, (i % rmax) + yRSVD),
|
||
b ? Curwin->cap_bold : Cap_norm,
|
||
b ? '*' : ' ',
|
||
fields[i],
|
||
p,
|
||
f->desc
|
||
);
|
||
}
|
||
if (xtra) {
|
||
putp(Curwin->capclr_rownorm);
|
||
while ((p = strchr(xtra, '\n'))) {
|
||
++i;
|
||
PUTT("%s%.*s",
|
||
tg2((i / rmax) * cmax, (i % rmax) + yRSVD),
|
||
(int)(p - xtra),
|
||
xtra
|
||
);
|
||
xtra = ++p;
|
||
}
|
||
}
|
||
putp(Caps_off);
|
||
|
||
#undef yRSVD
|
||
}
|
||
|
||
|
||
// Change order of displayed fields.
|
||
static void fields_reorder (void)
|
||
{
|
||
static const char prompt[] =
|
||
"Upper case letter moves field left, lower case right";
|
||
char c, *p;
|
||
int i;
|
||
|
||
putp(Cap_clr_scr);
|
||
putp(Cap_curs_huge);
|
||
for (;;) {
|
||
display_fields(Curwin->rc.fieldscur, FIELDS_xtra);
|
||
show_special(1, fmtmk(FIELDS_current
|
||
, Cap_home, Curwin->rc.fieldscur, Curwin->grpname, prompt));
|
||
chin(0, &c, 1);
|
||
if (!ft_get_ptr(FT_NEW_fmt, c)) break;
|
||
i = toupper(c) - 'A';
|
||
if (((p = strchr(Curwin->rc.fieldscur, i + 'A')))
|
||
|| ((p = strchr(Curwin->rc.fieldscur, i + 'a')))) {
|
||
if (isupper(c)) p--;
|
||
if (('\0' != p[1]) && (p >= Curwin->rc.fieldscur)) {
|
||
c = p[0];
|
||
p[0] = p[1];
|
||
p[1] = c;
|
||
}
|
||
}
|
||
}
|
||
putp(Cap_curs_norm);
|
||
}
|
||
|
||
// Select sort field.
|
||
static void fields_sort (void)
|
||
{
|
||
static const char prompt[] =
|
||
"Select sort field via field letter, type any other key to return";
|
||
char phoney[PFLAGSSIZ];
|
||
char c, *p;
|
||
int i, x;
|
||
|
||
strcpy(phoney, NUL_FIELDS);
|
||
x = i = Curwin->rc.sortindx;
|
||
putp(Cap_clr_scr);
|
||
putp(Cap_curs_huge);
|
||
for (;;) {
|
||
p = phoney + i;
|
||
*p = toupper(*p);
|
||
display_fields(phoney, SORT_xtra);
|
||
show_special(1, fmtmk(SORT_fields, Cap_home, *p, Curwin->grpname, prompt));
|
||
chin(0, &c, 1);
|
||
if (!ft_get_ptr(FT_NEW_fmt, c)) break;
|
||
i = toupper(c) - 'A';
|
||
*p = tolower(*p);
|
||
x = i;
|
||
}
|
||
if ((p = strchr(Curwin->rc.fieldscur, x + 'a')))
|
||
*p = x + 'A';
|
||
Curwin->rc.sortindx = x;
|
||
putp(Cap_curs_norm);
|
||
}
|
||
|
||
|
||
// Toggle displayed fields.
|
||
static void fields_toggle (void)
|
||
{
|
||
static const char prompt[] =
|
||
"Toggle fields via field letter, type any other key to return";
|
||
char c, *p;
|
||
int i;
|
||
|
||
putp(Cap_clr_scr);
|
||
putp(Cap_curs_huge);
|
||
for (;;) {
|
||
display_fields(Curwin->rc.fieldscur, FIELDS_xtra);
|
||
show_special(1, fmtmk(FIELDS_current, Cap_home, Curwin->rc.fieldscur, Curwin->grpname, prompt));
|
||
chin(0, &c, 1);
|
||
if (!ft_get_ptr(FT_NEW_fmt, c)) break;
|
||
i = toupper(c) - 'A';
|
||
if ((p = strchr(Curwin->rc.fieldscur, i + 'A')))
|
||
*p = i + 'a';
|
||
else if ((p = strchr(Curwin->rc.fieldscur, i + 'a')))
|
||
*p = i + 'A';
|
||
}
|
||
putp(Cap_curs_norm);
|
||
}
|
||
|
||
/*###### Windows/Field Groups support #################################*/
|
||
|
||
// For each of the four windows:
|
||
// 1) Set the number of fields/columns to display
|
||
// 2) Create the field columns heading
|
||
// 3) Set maximum cmdline length, if command lines are in use
|
||
// In the process, the required PROC_FILLxxx flags will be rebuilt!
|
||
static void reframewins (void)
|
||
{
|
||
WIN_t *w;
|
||
char *s;
|
||
const char *h;
|
||
int i, needpsdb = 0;
|
||
|
||
// Frames_libflags = 0; // should be called only when it's zero
|
||
// Frames_maxcmdln = 0; // to become largest from up to 4 windows, if visible
|
||
w = Curwin;
|
||
do {
|
||
if (!Rc.mode_altscr || CHKw(w, VISIBLE_tsk)) {
|
||
// build window's procflags array and establish a tentative maxpflgs
|
||
for (i = 0, w->maxpflgs = 0; w->rc.fieldscur[i]; i++) {
|
||
if (isupper(w->rc.fieldscur[i]))
|
||
w->procflags[w->maxpflgs++] = w->rc.fieldscur[i] - 'A';
|
||
}
|
||
|
||
/* build a preliminary columns header not to exceed screen width
|
||
while accounting for a possible leading window number */
|
||
*(s = w->columnhdr) = '\0';
|
||
if (Rc.mode_altscr) s = scat(s, " ");
|
||
for (i = 0; i < w->maxpflgs; i++) {
|
||
h = Fieldstab[w->procflags[i]].head;
|
||
// oops, won't fit -- we're outta here...
|
||
if (Screen_cols+1 < (int)((s - w->columnhdr) + strlen(h))) break;
|
||
s = scat(s, h);
|
||
}
|
||
|
||
// establish the final maxpflgs and prepare to grow the command column
|
||
// heading via maxcmdln - it may be a fib if P_CMD wasn't encountered,
|
||
// but that's ok because it won't be displayed anyway
|
||
w->maxpflgs = i;
|
||
w->maxcmdln = Screen_cols - (strlen(w->columnhdr) - strlen(Fieldstab[P_CMD].head));
|
||
|
||
// finally, we can build the true run-time columns header, format the
|
||
// command column heading, if P_CMD is really being displayed, and
|
||
// rebuild the all-important PROC_FILLxxx flags that will be used
|
||
// until/if we're we're called again
|
||
*(s = w->columnhdr) = '\0';
|
||
// if (Rc.mode_altscr) s = scat(s, fmtmk("%d", w->winnum));
|
||
for (i = 0; i < w->maxpflgs; i++) {
|
||
int advance = (i==0) && !Rc.mode_altscr;
|
||
h = Fieldstab[w->procflags[i]].head;
|
||
if (P_WCH == w->procflags[i]) needpsdb = 1;
|
||
if (P_CMD == w->procflags[i]) {
|
||
s = scat(s, fmtmk(Fieldstab[P_CMD].fmts+advance, w->maxcmdln, w->maxcmdln, "COMMAND"/*h*/ ));
|
||
if (CHKw(w, Show_CMDLIN)) {
|
||
Frames_libflags |= L_CMDLINE;
|
||
// if (w->maxcmdln > Frames_maxcmdln) Frames_maxcmdln = w->maxcmdln;
|
||
}
|
||
} else
|
||
s = scat(s, h+advance);
|
||
Frames_libflags |= Fieldstab[w->procflags[i]].lflg;
|
||
}
|
||
if (Rc.mode_altscr) w->columnhdr[0] = w->winnum + '0';
|
||
}
|
||
if (Rc.mode_altscr) w = w->next;
|
||
} while (w != Curwin);
|
||
|
||
// do we need the kernel symbol table (and is it already open?)
|
||
if (needpsdb) {
|
||
if (No_ksyms == -1) {
|
||
No_ksyms = 0;
|
||
if (open_psdb_message(NULL, msg_save))
|
||
No_ksyms = 1;
|
||
else
|
||
PSDBopen = 1;
|
||
}
|
||
}
|
||
|
||
if (selection_type=='U') Frames_libflags |= L_status;
|
||
|
||
if (Frames_libflags & L_EITHER) {
|
||
Frames_libflags &= ~L_EITHER;
|
||
if (!(Frames_libflags & L_stat)) Frames_libflags |= L_status;
|
||
}
|
||
if (!Frames_libflags) Frames_libflags = L_DEFAULT;
|
||
if (selection_type=='p') Frames_libflags |= PROC_PID;
|
||
}
|
||
|
||
|
||
// Value a window's name and make the associated group name.
|
||
static void win_names (WIN_t *q, const char *name)
|
||
{
|
||
// Note that src==dst is illegal in sprintf.
|
||
// Failure: amd64, glibc 2.9-20081201, gcc 4.3.4
|
||
if(q->rc.winname != name)
|
||
sprintf(q->rc.winname, "%.*s", WINNAMSIZ -1, name);
|
||
sprintf(q->grpname, "%d:%.*s", q->winnum, WINNAMSIZ -1, name);
|
||
}
|
||
|
||
|
||
// Display a window/field group (ie. make it "current").
|
||
static void win_select (char ch)
|
||
{
|
||
static const char prompt[] = "Choose field group (1 - 4)";
|
||
|
||
/* 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);
|
||
chin(0, (char *)&ch, 1);
|
||
}
|
||
switch (ch) {
|
||
case 'a': /* we don't carry 'a' / 'w' in our */
|
||
Curwin = Curwin->next; /* pmt - they're here for a good */
|
||
break; /* friend of ours -- wins_colors. */
|
||
case 'w': /* (however those letters work via */
|
||
Curwin = Curwin->prev; /* the pmt too but gee, end-loser */
|
||
break; /* should just press the darn key) */
|
||
case '1': case '2':
|
||
case '3': case '4':
|
||
Curwin = &Winstk[ch - '1'];
|
||
break;
|
||
}
|
||
}
|
||
|
||
|
||
// Just warn the user when a command can't be honored.
|
||
static int win_warn (void)
|
||
{
|
||
show_msg(fmtmk("\aCommand disabled, activate %s with '-' or '_'", Curwin->grpname));
|
||
// we gotta' return false 'cause we're somewhat well known within
|
||
// macro society, by way of that sassy little tertiary operator...
|
||
return 0;
|
||
}
|
||
|
||
|
||
// 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);
|
||
}
|
||
|
||
|
||
// Change colors used in display
|
||
static void wins_colors (void)
|
||
{
|
||
#define kbdABORT 'q'
|
||
#define kbdAPPLY '\n'
|
||
int clr = Curwin->rc.taskclr, *pclr = &Curwin->rc.taskclr;
|
||
char ch, tgt = 'T';
|
||
|
||
if (0 >= max_colors) {
|
||
show_msg("\aNo colors to map!");
|
||
return;
|
||
}
|
||
winsclrhlp(Curwin, 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,
|
||
Curwin->grpname,
|
||
CHKw(Curwin, View_NOBOLD) ? "On" : "Off",
|
||
CHKw(Curwin, Show_COLORS) ? "On" : "Off",
|
||
CHKw(Curwin, Show_HIBOLD) ? "On" : "Off",
|
||
tgt,
|
||
clr,
|
||
Curwin->grpname
|
||
)
|
||
);
|
||
chin(0, &ch, 1);
|
||
switch (ch) {
|
||
case 'S':
|
||
pclr = &Curwin->rc.summclr;
|
||
clr = *pclr;
|
||
tgt = ch;
|
||
break;
|
||
case 'M':
|
||
pclr = &Curwin->rc.msgsclr;
|
||
clr = *pclr;
|
||
tgt = ch;
|
||
break;
|
||
case 'H':
|
||
pclr = &Curwin->rc.headclr;
|
||
clr = *pclr;
|
||
tgt = ch;
|
||
break;
|
||
case 'T':
|
||
pclr = &Curwin->rc.taskclr;
|
||
clr = *pclr;
|
||
tgt = ch;
|
||
break;
|
||
case '0' ... '7':
|
||
clr = ch - '0';
|
||
*pclr = clr;
|
||
break;
|
||
case 'B':
|
||
TOGw(Curwin, View_NOBOLD);
|
||
break;
|
||
case 'b':
|
||
TOGw(Curwin, Show_HIBOLD);
|
||
break;
|
||
case 'z':
|
||
TOGw(Curwin, Show_COLORS);
|
||
break;
|
||
case 'a':
|
||
case 'w':
|
||
win_select(ch);
|
||
winsclrhlp(Curwin, 1);
|
||
clr = Curwin->rc.taskclr, pclr = &Curwin->rc.taskclr;
|
||
tgt = 'T';
|
||
break;
|
||
}
|
||
capsmk(Curwin);
|
||
} while (kbdAPPLY != ch && kbdABORT != ch);
|
||
|
||
if (kbdABORT == ch)
|
||
winsclrhlp(Curwin, 0);
|
||
putp(Cap_curs_norm);
|
||
|
||
#undef kbdABORT
|
||
#undef kbdAPPLY
|
||
}
|
||
|
||
|
||
// Manipulate flag(s) for all our windows.
|
||
static void wins_reflag (int what, int flg)
|
||
{
|
||
WIN_t *w;
|
||
|
||
w = Curwin;
|
||
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;
|
||
}
|
||
// a flag with special significance -- user wants to rebalance
|
||
// display so we gotta' 'off' one number then force on two flags...
|
||
if (EQUWINS_cwo == flg) {
|
||
w->rc.maxtasks = 0;
|
||
SETw(w, Show_IDLEPS | VISIBLE_tsk);
|
||
}
|
||
w = w->next;
|
||
} while (w != Curwin);
|
||
}
|
||
|
||
|
||
// using a flag to avoid other code seeing inconsistant state
|
||
static volatile int need_resize;
|
||
static void wins_resize_sighandler (int dont_care_sig)
|
||
{
|
||
(void)dont_care_sig;
|
||
need_resize = 1;
|
||
ZAP_TIMEOUT
|
||
}
|
||
|
||
|
||
// Set the screen dimensions and arrange for the real workhorse.
|
||
// (also) catches:
|
||
// SIGWINCH and SIGCONT
|
||
static void wins_resize (void)
|
||
{
|
||
struct winsize wz;
|
||
char *env_columns; // Unix98 environment variable COLUMNS
|
||
char *env_lines; // Unix98 environment variable LINES
|
||
|
||
Screen_cols = columns; // <term.h>
|
||
Screen_rows = lines; // <term.h>
|
||
|
||
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &wz) != -1 && wz.ws_col>0 && wz.ws_row>0) {
|
||
Screen_cols = wz.ws_col;
|
||
Screen_rows = wz.ws_row;
|
||
}
|
||
|
||
if (Batch) Screen_rows = MAXINT;
|
||
|
||
env_columns = getenv("COLUMNS");
|
||
if(env_columns && *env_columns){
|
||
long t;
|
||
char *endptr;
|
||
t = strtol(env_columns, &endptr, 0);
|
||
if(!*endptr && (t>0) && (t<=0x7fffffffL)) Screen_cols = (int)t;
|
||
}
|
||
env_lines = getenv("LINES");
|
||
if(env_lines && *env_lines){
|
||
long t;
|
||
char *endptr;
|
||
t = strtol(env_lines, &endptr, 0);
|
||
if(!*endptr && (t>0) && (t<=0x7fffffffL)) Screen_rows = (int)t;
|
||
}
|
||
|
||
// be crudely tolerant of crude tty emulators
|
||
if (avoid_last_column) Screen_cols--;
|
||
|
||
// we might disappoint some folks (but they'll deserve it)
|
||
if (SCREENMAX < Screen_cols) Screen_cols = SCREENMAX;
|
||
|
||
// 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_scrn 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...
|
||
Pseudo_cols = Screen_cols + CLRBUFSIZ + 1;
|
||
if (Batch) Pseudo_size = ROWBUFSIZ + 1;
|
||
else Pseudo_size = Pseudo_cols * Screen_rows;
|
||
Pseudo_scrn = alloc_r(Pseudo_scrn, Pseudo_size);
|
||
|
||
// force rebuild of column headers AND libproc/readproc requirements
|
||
Frames_libflags = 0;
|
||
}
|
||
|
||
|
||
// 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 windows_stage1 (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;
|
||
++w;
|
||
}
|
||
/* fixup the circular chains... */
|
||
Winstk[3].next = &Winstk[0];
|
||
Winstk[0].prev = &Winstk[3];
|
||
Curwin = Winstk;
|
||
}
|
||
|
||
|
||
// This guy just completes the field group windows after the
|
||
// rcfiles have been read and command line arguments parsed
|
||
static void windows_stage2 (void)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < GROUPSMAX; i++) {
|
||
win_names(&Winstk[i], Winstk[i].rc.winname);
|
||
capsmk(&Winstk[i]);
|
||
}
|
||
// rely on this next guy to force a call (eventually) to reframewins
|
||
wins_resize();
|
||
}
|
||
|
||
|
||
/*###### Main Screen routines ##########################################*/
|
||
|
||
// Process keyboard input during the main loop
|
||
static void do_key (unsigned c)
|
||
{
|
||
// standardized 'secure mode' errors
|
||
static const char err_secure[] = "\aUnavailable in secure mode";
|
||
static const char err_num_cpus[] = "\aSorry, terminal is not big enough";
|
||
#ifdef WARN_NOT_SMP
|
||
// standardized 'smp' errors
|
||
static const char err_smp[] = "\aSorry, only 1 cpu detected";
|
||
#endif
|
||
|
||
switch (c) {
|
||
case '1':
|
||
if (Cpu_tot+7 > Screen_rows && CHKw(Curwin, View_CPUSUM)) {
|
||
show_msg(err_num_cpus);
|
||
break;
|
||
}
|
||
#ifdef WARN_NOT_SMP
|
||
if (Cpu_tot > 1) TOGw(Curwin, View_CPUSUM);
|
||
else show_msg(err_smp);
|
||
#else
|
||
TOGw(Curwin, View_CPUSUM);
|
||
#endif
|
||
break;
|
||
|
||
case 'a':
|
||
if (Rc.mode_altscr) Curwin = Curwin->next;
|
||
break;
|
||
|
||
case 'A':
|
||
Rc.mode_altscr = !Rc.mode_altscr;
|
||
wins_resize();
|
||
break;
|
||
|
||
case 'b':
|
||
if (VIZCHKc) {
|
||
if (!CHKw(Curwin, Show_HICOLS | Show_HIROWS))
|
||
show_msg("\aNothing to highlight!");
|
||
else {
|
||
TOGw(Curwin, Show_HIBOLD);
|
||
capsmk(Curwin);
|
||
}
|
||
}
|
||
break;
|
||
|
||
case 'B':
|
||
TOGw(Curwin, View_NOBOLD);
|
||
capsmk(Curwin);
|
||
break;
|
||
|
||
case 'c':
|
||
VIZTOGc(Show_CMDLIN);
|
||
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 (tmp > -1) Rc.delay_time = tmp;
|
||
}
|
||
break;
|
||
|
||
case 'f':
|
||
if (VIZCHKc) fields_toggle();
|
||
break;
|
||
|
||
case 'F':
|
||
case 'O':
|
||
if (VIZCHKc) fields_sort();
|
||
break;
|
||
|
||
case 'g':
|
||
if (Rc.mode_altscr) {
|
||
char tmp[GETBUFSIZ];
|
||
strcpy(tmp, ask4str(fmtmk("Rename window '%s' to (1-3 chars)", Curwin->rc.winname)));
|
||
if (tmp[0]) win_names(Curwin, tmp);
|
||
}
|
||
break;
|
||
|
||
case 'G':
|
||
win_select(0);
|
||
break;
|
||
|
||
case 'H':
|
||
if (VIZCHKc) {
|
||
TOGw(Curwin, Show_THREADS);
|
||
show_msg(fmtmk("Show threads %s"
|
||
, CHKw(Curwin, Show_THREADS) ? "On" : "Off"));
|
||
}
|
||
break;
|
||
|
||
case 'h':
|
||
case '?':
|
||
{ 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,
|
||
Curwin->grpname,
|
||
CHKw(Curwin, Show_CTIMES) ? "On" : "Off",
|
||
Rc.delay_time,
|
||
Secure_mode ? "On" : "Off",
|
||
Secure_mode ? "" : KEYS_help_unsecured
|
||
)
|
||
);
|
||
chin(0, &ch, 1);
|
||
if ('?' == ch || 'h' == ch) {
|
||
do {
|
||
putp(Cap_clr_scr);
|
||
show_special(1, fmtmk(WINDOWS_help
|
||
, Curwin->grpname
|
||
, Winstk[0].rc.winname
|
||
, Winstk[1].rc.winname
|
||
, Winstk[2].rc.winname
|
||
, Winstk[3].rc.winname));
|
||
chin(0, &ch, 1);
|
||
win_select(ch);
|
||
} while ('\n' != ch);
|
||
}
|
||
putp(Cap_curs_norm);
|
||
}
|
||
break;
|
||
|
||
case 'i':
|
||
VIZTOGc(Show_IDLEPS);
|
||
break;
|
||
|
||
case 'I':
|
||
#ifdef WARN_NOT_SMP
|
||
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_smp);
|
||
#else
|
||
Rc.mode_irixps = !Rc.mode_irixps;
|
||
show_msg(fmtmk("Irix mode %s", Rc.mode_irixps ? "On" : "Off"));
|
||
#endif
|
||
if(Rc.mode_irixps && smp_num_cpus>1){
|
||
// good for 100 CPUs per process
|
||
pcpu_max_value = 9999.0;
|
||
Fieldstab[P_CPU].fmts = " %4.0f";
|
||
} else {
|
||
pcpu_max_value = 99.9;
|
||
Fieldstab[P_CPU].fmts = " %#4.1f";
|
||
}
|
||
break;
|
||
|
||
case 'k':
|
||
if (Secure_mode) {
|
||
show_msg(err_secure);
|
||
} else {
|
||
int sig, pid = get_int("PID to kill");
|
||
if (pid > 0) {
|
||
sig = signal_name_to_number(
|
||
ask4str(fmtmk("Kill PID %d with signal [%i]", pid, DEF_SIGNAL)));
|
||
if (sig == -1) sig = DEF_SIGNAL;
|
||
if (sig && kill(pid, sig))
|
||
show_msg(fmtmk("\aKill of PID '%d' with '%d' failed: %s", pid, sig, strerror(errno)));
|
||
}
|
||
}
|
||
break;
|
||
|
||
case 'l':
|
||
TOGw(Curwin, View_LOADAV);
|
||
break;
|
||
|
||
case 'm':
|
||
TOGw(Curwin, View_MEMORY);
|
||
break;
|
||
|
||
case 'n':
|
||
case '#':
|
||
if (VIZCHKc) {
|
||
int num =
|
||
get_int(fmtmk("Maximum tasks = %d, change to (0 is unlimited)", Curwin->rc.maxtasks));
|
||
if (num > -1) Curwin->rc.maxtasks = num;
|
||
}
|
||
break;
|
||
|
||
case 'o':
|
||
if (VIZCHKc) fields_reorder();
|
||
break;
|
||
|
||
case 'q':
|
||
end_pgm(0);
|
||
|
||
case 'r':
|
||
if (Secure_mode)
|
||
show_msg(err_secure);
|
||
else {
|
||
int val, pid = get_int("PID to renice");
|
||
if (pid > 0) {
|
||
val = get_int(fmtmk("Renice PID %d to value", pid));
|
||
if (setpriority(PRIO_PROCESS, (unsigned)pid, val))
|
||
show_msg(fmtmk("\aRenice of PID %d to %d failed: %s", pid, val, strerror(errno)));
|
||
}
|
||
}
|
||
break;
|
||
|
||
case 'R':
|
||
VIZTOGc(Qsrt_NORMAL);
|
||
break;
|
||
|
||
case 'S':
|
||
if (VIZCHKc) {
|
||
TOGw(Curwin, Show_CTIMES);
|
||
show_msg(fmtmk("Cumulative time %s", CHKw(Curwin, Show_CTIMES) ? "On" : "Off"));
|
||
}
|
||
break;
|
||
|
||
case 't':
|
||
TOGw(Curwin, View_STATES);
|
||
break;
|
||
|
||
// case 'u':
|
||
// if (VIZCHKc)
|
||
// strcpy(Curwin->colusrnam, ask4str("Which user (blank for all)"));
|
||
// break;
|
||
|
||
case 'u':
|
||
// if (!VIZCHKc) break;
|
||
do {
|
||
const char *errmsg;
|
||
const char *answer;
|
||
answer = ask4str("Which user (blank for all)");
|
||
// FIXME: do this better:
|
||
if (!answer || *answer=='\0' || *answer=='\n' || *answer=='\r' || *answer=='\t' || *answer==' ') {
|
||
selection_type = 0;
|
||
selection_uid = -1;
|
||
break;
|
||
}
|
||
errmsg = parse_uid(answer, &selection_uid);
|
||
if (errmsg) {
|
||
show_msg(errmsg);
|
||
// Change settings here? I guess not.
|
||
break;
|
||
}
|
||
selection_type = 'u';
|
||
} while(0);
|
||
break;
|
||
|
||
case 'U':
|
||
// if (!VIZCHKc) break;
|
||
do {
|
||
const char *errmsg;
|
||
const char *answer;
|
||
answer = ask4str("Which user (blank for all)");
|
||
// FIXME: do this better:
|
||
if (!answer || *answer=='\0' || *answer=='\n' || *answer=='\r' || *answer=='\t' || *answer==' ') {
|
||
selection_type = 0;
|
||
selection_uid = -1;
|
||
break;
|
||
}
|
||
errmsg = parse_uid(answer, &selection_uid);
|
||
if (errmsg) {
|
||
show_msg(errmsg);
|
||
// Change settings here? I guess not.
|
||
break;
|
||
}
|
||
selection_type = 'U';
|
||
} while(0);
|
||
break;
|
||
|
||
case 'w':
|
||
if (Rc.mode_altscr) Curwin = Curwin->prev;
|
||
break;
|
||
|
||
case 'W':
|
||
{ const char *err = rc_write_whatever();
|
||
if (err)
|
||
show_msg(fmtmk("\aFailed '%s' open: %s", Rc_name, err));
|
||
else
|
||
show_msg(fmtmk("Wrote configuration to '%s'", Rc_name));
|
||
}
|
||
break;
|
||
|
||
case 'x':
|
||
if (VIZCHKc) {
|
||
TOGw(Curwin, Show_HICOLS);
|
||
capsmk(Curwin);
|
||
}
|
||
break;
|
||
|
||
case 'y':
|
||
if (VIZCHKc) {
|
||
TOGw(Curwin, Show_HIROWS);
|
||
capsmk(Curwin);
|
||
}
|
||
break;
|
||
|
||
case 'z':
|
||
if (VIZCHKc) {
|
||
TOGw(Curwin, Show_COLORS);
|
||
capsmk(Curwin);
|
||
}
|
||
break;
|
||
|
||
case 'Z':
|
||
wins_colors();
|
||
break;
|
||
|
||
case '-':
|
||
if (Rc.mode_altscr) TOGw(Curwin, VISIBLE_tsk);
|
||
break;
|
||
|
||
case '_':
|
||
if (Rc.mode_altscr) wins_reflag(Flags_TOG, VISIBLE_tsk);
|
||
break;
|
||
|
||
case '=':
|
||
Curwin->rc.maxtasks = 0;
|
||
SETw(Curwin, Show_IDLEPS | VISIBLE_tsk);
|
||
Monpidsidx = 0;
|
||
selection_type = '\0';
|
||
break;
|
||
|
||
case '+':
|
||
if (Rc.mode_altscr) SETw(Curwin, EQUWINS_cwo);
|
||
break;
|
||
|
||
case '<':
|
||
if (VIZCHKc) {
|
||
FLG_t *p = Curwin->procflags + Curwin->maxpflgs - 1;
|
||
while (*p != Curwin->rc.sortindx) --p;
|
||
if (--p >= Curwin->procflags)
|
||
Curwin->rc.sortindx = *p;
|
||
}
|
||
break;
|
||
|
||
case '>':
|
||
if (VIZCHKc) {
|
||
FLG_t *p = Curwin->procflags;
|
||
while (*p != Curwin->rc.sortindx) ++p;
|
||
if (++p < Curwin->procflags + Curwin->maxpflgs)
|
||
Curwin->rc.sortindx = *p;
|
||
}
|
||
break;
|
||
|
||
case 'M': // these keys represent old-top compatability
|
||
case 'N': // -- grouped here so that if users could ever
|
||
case 'P': // be weaned, we would just whack this part...
|
||
case 'T':
|
||
{ static struct {
|
||
const char *xmsg;
|
||
const unsigned xkey;
|
||
const FLG_t sort;
|
||
} xtab[] = {
|
||
{ "Memory", 'M', P_MEM, }, { "Numerical", 'N', P_PID, },
|
||
{ "CPU", 'P', P_CPU, }, { "Time", 'T', P_TM2 }, };
|
||
int i;
|
||
for (i = 0; i < MAXTBL(xtab); ++i)
|
||
if (c == xtab[i].xkey) {
|
||
Curwin->rc.sortindx = xtab[i].sort;
|
||
// show_msg(fmtmk("%s sort compatibility key honored", xtab[i].xmsg));
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case '\n': // just ignore these, they'll have the effect
|
||
case ' ': // of refreshing display after waking us up !
|
||
break;
|
||
|
||
default:
|
||
show_msg("\aUnknown command - try 'h' for help");
|
||
}
|
||
// 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' - maybe, if new field forced on
|
||
// 'f' - likely
|
||
// 'G' - likely
|
||
// 'O' - maybe, if new field forced on
|
||
// 'o' - maybe, if new field brought into view
|
||
// '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)
|
||
// ( 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_libflags = 0;
|
||
}
|
||
|
||
|
||
// 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);
|
||
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 (tot_frme < 1) 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(
|
||
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
|
||
)
|
||
);
|
||
Msg_row += 1;
|
||
|
||
// 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
|
||
}
|
||
|
||
|
||
// Begin a new frame by:
|
||
// 1) Refreshing the all important proc table
|
||
// 2) Displaying uptime and load average (maybe)
|
||
// 3) Displaying task/cpu states (maybe)
|
||
// 4) Displaying memory & swap usage (maybe)
|
||
// and then, returning a pointer to the pointers to the proc_t's!
|
||
static proc_t **summary_show (void)
|
||
{
|
||
static proc_t **p_table = NULL;
|
||
static CPU_t *smpcpu = NULL;
|
||
|
||
// whoa first time, gotta' prime the pump...
|
||
if (!p_table) {
|
||
p_table = procs_refresh(NULL, Frames_libflags);
|
||
putp(Cap_clr_scr);
|
||
putp(Cap_rmam);
|
||
#ifndef PROF
|
||
// sleep for half a second
|
||
tv.tv_sec = 0;
|
||
tv.tv_usec = 500000;
|
||
select(0, NULL, NULL, NULL, &tv); // ought to loop until done
|
||
#endif
|
||
} else {
|
||
putp(Batch ? "\n\n" : Cap_home);
|
||
}
|
||
p_table = procs_refresh(p_table, Frames_libflags);
|
||
|
||
// Display Uptime and Loadavg
|
||
if (CHKw(Curwin, View_LOADAV)) {
|
||
if (!Rc.mode_altscr) {
|
||
show_special(0, fmtmk(LOADAV_line, Myname, sprint_uptime()));
|
||
} else {
|
||
show_special(
|
||
0,
|
||
fmtmk(
|
||
CHKw(Curwin, VISIBLE_tsk) ? LOADAV_line_alt : LOADAV_line,
|
||
Curwin->grpname,
|
||
sprint_uptime()
|
||
)
|
||
);
|
||
}
|
||
Msg_row += 1;
|
||
}
|
||
|
||
// Display Task and Cpu(s) States
|
||
if (CHKw(Curwin, View_STATES)) {
|
||
show_special(
|
||
0,
|
||
fmtmk(
|
||
STATES_line1,
|
||
Frame_maxtask, Frame_running, Frame_sleepin, Frame_stopped, Frame_zombied
|
||
)
|
||
);
|
||
Msg_row += 1;
|
||
|
||
smpcpu = cpus_refresh(smpcpu);
|
||
|
||
if (CHKw(Curwin, View_CPUSUM)) {
|
||
// display just the 1st /proc/stat line
|
||
summaryhlp(&smpcpu[Cpu_tot], "Cpu(s):");
|
||
} else {
|
||
int i;
|
||
char tmp[SMLBUFSIZ];
|
||
// display each cpu's states separately
|
||
for (i = 0; i < Cpu_tot; i++) {
|
||
snprintf(tmp, sizeof(tmp), "Cpu%-3d:", smpcpu[i].id);
|
||
summaryhlp(&smpcpu[i], tmp);
|
||
}
|
||
}
|
||
}
|
||
|
||
// Display Memory and Swap stats
|
||
meminfo();
|
||
if (CHKw(Curwin, View_MEMORY)) {
|
||
show_special(0, fmtmk(MEMORY_line1
|
||
, kb_main_total, kb_main_used, kb_main_free, kb_main_buffers));
|
||
show_special(0, fmtmk(MEMORY_line2
|
||
, kb_swap_total, kb_swap_used, kb_swap_free, kb_main_cached));
|
||
Msg_row += 2;
|
||
}
|
||
|
||
SETw(Curwin, NEWFRAM_cwo);
|
||
return p_table;
|
||
}
|
||
|
||
|
||
#define PAGES_TO_KB(n) (unsigned long)( (n) << page_to_kb_shift )
|
||
|
||
// the following macro is our means to 'inline' emitting a column -- next to
|
||
// procs_refresh, that's the most frequent and costly part of top's job !
|
||
#define MKCOL(va...) do { \
|
||
if(likely(!( CHKw(q, Show_HICOLS) && q->rc.sortindx==i ))) { \
|
||
snprintf(cbuf, sizeof(cbuf), f, ## va); \
|
||
} else { \
|
||
snprintf(_z, sizeof(_z), f, ## va); \
|
||
snprintf(cbuf, sizeof(cbuf), "%s%s%s", \
|
||
q->capclr_rowhigh, \
|
||
_z+advance, \
|
||
!(CHKw(q, Show_HIROWS) && 'R' == p->state) ? q->capclr_rownorm : "" \
|
||
); \
|
||
advance=0; \
|
||
pad += q->len_rowhigh; \
|
||
if (!(CHKw(q, Show_HIROWS) && 'R' == p->state)) pad += q->len_rownorm; \
|
||
} \
|
||
} while (0)
|
||
|
||
// Display information for a single task row.
|
||
static void task_show (const WIN_t *q, const proc_t *p)
|
||
{
|
||
char rbuf[ROWBUFSIZ];
|
||
char *rp = rbuf;
|
||
int j, x, pad;
|
||
|
||
*rp = '\0';
|
||
|
||
pad = Rc.mode_altscr;
|
||
// if (pad) rp = scat(rp, " ");
|
||
|
||
for (x = 0; x < q->maxpflgs; x++) {
|
||
char cbuf[ROWBUFSIZ], _z[ROWBUFSIZ];
|
||
FLG_t i = q->procflags[x]; // support for our field/column
|
||
const char *f = Fieldstab[i].fmts; // macro AND sometimes the fmt
|
||
unsigned s = Fieldstab[i].scale; // string must be altered !
|
||
unsigned w = Fieldstab[i].width;
|
||
|
||
int advance = (x==0) && !Rc.mode_altscr;
|
||
|
||
switch (i) {
|
||
case P_CMD:
|
||
{ char tmp[ROWBUFSIZ];
|
||
unsigned flags;
|
||
int maxcmd = q->maxcmdln;
|
||
if (CHKw(q, Show_CMDLIN)) flags = ESC_DEFUNCT | ESC_BRACKETS | ESC_ARGS;
|
||
else flags = ESC_DEFUNCT;
|
||
escape_command(tmp, p, sizeof tmp, &maxcmd, flags);
|
||
MKCOL(q->maxcmdln, q->maxcmdln, tmp);
|
||
}
|
||
break;
|
||
case P_COD:
|
||
MKCOL(scale_num(PAGES_TO_KB(p->trs), w, s));
|
||
break;
|
||
case P_CPN:
|
||
MKCOL((unsigned)p->processor);
|
||
break;
|
||
case P_CPU:
|
||
{ float u = (float)p->pcpu * Frame_tscale;
|
||
if (u > pcpu_max_value) u = pcpu_max_value;
|
||
MKCOL(u);
|
||
}
|
||
break;
|
||
case P_DAT:
|
||
MKCOL(scale_num(PAGES_TO_KB(p->drs), w, s));
|
||
break;
|
||
case P_DRT:
|
||
MKCOL(scale_num((unsigned)p->dt, w, s));
|
||
break;
|
||
case P_FLG:
|
||
{ char tmp[TNYBUFSIZ];
|
||
snprintf(tmp, sizeof(tmp), f, (long)p->flags);
|
||
for (j = 0; tmp[j]; j++) if ('0' == tmp[j]) tmp[j] = '.';
|
||
f = tmp;
|
||
MKCOL("");
|
||
}
|
||
break;
|
||
case P_FLT:
|
||
MKCOL(scale_num(p->maj_flt, w, s));
|
||
break;
|
||
case P_GRP:
|
||
MKCOL(p->egroup);
|
||
break;
|
||
case P_MEM:
|
||
MKCOL((float)PAGES_TO_KB(p->resident) * 100 / kb_main_total);
|
||
break;
|
||
case P_NCE:
|
||
MKCOL((int)p->nice);
|
||
break;
|
||
case P_PID:
|
||
MKCOL((unsigned)p->XXXID);
|
||
break;
|
||
case P_PPD:
|
||
MKCOL((unsigned)p->ppid);
|
||
break;
|
||
case P_PRI:
|
||
if (unlikely(-99 > p->priority) || unlikely(999 < p->priority)) {
|
||
f = " RT";
|
||
MKCOL("");
|
||
} else
|
||
MKCOL((int)p->priority);
|
||
break;
|
||
case P_RES:
|
||
MKCOL(scale_num(PAGES_TO_KB(p->resident), w, s));
|
||
break;
|
||
case P_SHR:
|
||
MKCOL(scale_num(PAGES_TO_KB(p->share), w, s));
|
||
break;
|
||
case P_STA:
|
||
MKCOL(p->state);
|
||
break;
|
||
case P_SWP:
|
||
MKCOL(scale_num(PAGES_TO_KB(p->size - p->resident), w, s));
|
||
break;
|
||
case P_TME:
|
||
case P_TM2:
|
||
{ TIC_t t = p->utime + p->stime;
|
||
if (CHKw(q, Show_CTIMES))
|
||
t += (p->cutime + p->cstime);
|
||
MKCOL(scale_tics(t, w));
|
||
}
|
||
break;
|
||
case P_TTY:
|
||
{ char tmp[TNYBUFSIZ];
|
||
dev_to_tty(tmp, (int)w, p->tty, p->XXXID, ABBREV_DEV);
|
||
MKCOL(tmp);
|
||
}
|
||
break;
|
||
case P_UID:
|
||
MKCOL((unsigned)p->euid);
|
||
break;
|
||
case P_URE:
|
||
MKCOL(p->euser);
|
||
break;
|
||
case P_URR:
|
||
MKCOL(p->ruser);
|
||
break;
|
||
case P_VRT:
|
||
MKCOL(scale_num(PAGES_TO_KB(p->size), w, s));
|
||
break;
|
||
case P_WCH:
|
||
if (No_ksyms) {
|
||
f = " %08lx ";
|
||
MKCOL((long)p->wchan);
|
||
} else {
|
||
MKCOL(lookup_wchan(p->wchan, p->XXXID));
|
||
}
|
||
break;
|
||
|
||
} /* end: switch 'procflag' */
|
||
|
||
rp = scat(rp, cbuf+advance);
|
||
} /* end: for 'maxpflgs' */
|
||
|
||
PUFF(
|
||
"\n%s%.*s%s%s",
|
||
(CHKw(q, Show_HIROWS) && 'R' == p->state) ? q->capclr_rowhigh : q->capclr_rownorm,
|
||
Screen_cols + pad,
|
||
rbuf,
|
||
Caps_off,
|
||
"" /*Cap_clr_eol*/
|
||
);
|
||
|
||
#undef MKCOL
|
||
}
|
||
|
||
|
||
// Squeeze as many tasks as we can into a single window,
|
||
// after sorting the passed proc table.
|
||
static void window_show (proc_t **ppt, WIN_t *q, int *lscr)
|
||
{
|
||
#ifdef SORT_SUPRESS
|
||
// the 1 flag that DOES and 2 flags that MAY impact our proc table qsort
|
||
#define srtMASK ~( Qsrt_NORMAL | Show_CMDLIN | Show_CTIMES )
|
||
static FLG_t sav_indx = 0;
|
||
static int sav_flgs = -1;
|
||
#endif
|
||
int i, lwin;
|
||
|
||
// Display Column Headings -- and distract 'em while we sort (maybe)
|
||
PUFF("\n%s%s%s%s", q->capclr_hdr, q->columnhdr, Caps_off, Cap_clr_eol);
|
||
|
||
#ifdef SORT_SUPRESS
|
||
if (CHKw(Curwin, NEWFRAM_cwo)
|
||
|| sav_indx != q->rc.sortindx
|
||
|| sav_flgs != (q->rc.winflags & srtMASK)) {
|
||
sav_indx = q->rc.sortindx;
|
||
sav_flgs = (q->rc.winflags & srtMASK);
|
||
#endif
|
||
if (CHKw(q, Qsrt_NORMAL)) Frame_srtflg = 1; // this one's always needed!
|
||
else Frame_srtflg = -1;
|
||
Frame_ctimes = CHKw(q, Show_CTIMES); // this and next, only maybe
|
||
Frame_cmdlin = CHKw(q, Show_CMDLIN);
|
||
qsort(ppt, Frame_maxtask, sizeof(proc_t *), Fieldstab[q->rc.sortindx].sort);
|
||
#ifdef SORT_SUPRESS
|
||
}
|
||
#endif
|
||
// account for column headings
|
||
(*lscr)++;
|
||
lwin = 1;
|
||
i = 0;
|
||
|
||
while ( ppt[i]->tid != -1 && *lscr < Max_lines && (!q->winlines || (lwin <= q->winlines)) ) {
|
||
if ((CHKw(q, Show_IDLEPS) || ('S' != ppt[i]->state && 'Z' != ppt[i]->state && 'T' != ppt[i]->state))
|
||
&& good_uid(ppt[i]) ) {
|
||
// Display a process Row
|
||
task_show(q, ppt[i]);
|
||
(*lscr)++;
|
||
++lwin;
|
||
}
|
||
++i;
|
||
}
|
||
// for this frame that window's toast, cleanup for next time
|
||
q->winlines = 0;
|
||
OFFw(Curwin, FLGSOFF_cwo);
|
||
|
||
#ifdef SORT_SUPRESS
|
||
#undef srtMASK
|
||
#endif
|
||
}
|
||
|
||
|
||
/*###### 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, rsvd, size, wins;
|
||
|
||
// calc remaining number of visible windows + total 'user' lines
|
||
for (i = wix, rsvd = 0, wins = 0; i < GROUPSMAX; i++) {
|
||
if (CHKw(&Winstk[i], VISIBLE_tsk)) {
|
||
rsvd += Winstk[i].rc.maxtasks;
|
||
++wins;
|
||
if (max <= rsvd) break;
|
||
}
|
||
}
|
||
if (!wins) wins = 1;
|
||
// set aside 'rsvd' & deduct 1 line/window for the columns heading
|
||
size = (max - wins) - rsvd;
|
||
if (0 <= size) size = max;
|
||
size = (max - wins) / wins;
|
||
|
||
// for remaining windows, set WIN_t winlines to either the user's
|
||
// maxtask (1st choice) or our 'foxized' size calculation
|
||
// (foxized adj. - 'fair and balanced')
|
||
for (i = wix ; i < GROUPSMAX; i++) {
|
||
if (CHKw(&Winstk[i], VISIBLE_tsk)) {
|
||
Winstk[i].winlines =
|
||
Winstk[i].rc.maxtasks ? Winstk[i].rc.maxtasks : size;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
// 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.)
|
||
static void frame_make (void)
|
||
{
|
||
proc_t **ppt;
|
||
int i, scrlins;
|
||
|
||
// note: all libproc flags are managed by
|
||
// reframewins(), who also builds each window's column headers
|
||
if (!Frames_libflags) {
|
||
reframewins();
|
||
memset(Pseudo_scrn, '\0', Pseudo_size);
|
||
}
|
||
Pseudo_row = Msg_row = scrlins = 0;
|
||
ppt = summary_show();
|
||
Max_lines = (Screen_rows - Msg_row) - 1;
|
||
|
||
if (CHKw(Curwin, EQUWINS_cwo))
|
||
wins_reflag(Flags_OFF, EQUWINS_cwo);
|
||
|
||
// sure hope each window's columns header begins with a newline...
|
||
putp(tg2(0, Msg_row));
|
||
|
||
if (!Rc.mode_altscr) {
|
||
// only 1 window to show so, piece o' cake
|
||
Curwin->winlines = Curwin->rc.maxtasks;
|
||
window_show(ppt, Curwin, &scrlins);
|
||
} else {
|
||
// maybe NO window is visible but assume, pieces o' cakes
|
||
for (i = 0 ; i < GROUPSMAX; i++) {
|
||
if (CHKw(&Winstk[i], VISIBLE_tsk)) {
|
||
framehlp(i, Max_lines - scrlins);
|
||
window_show(ppt, &Winstk[i], &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)
|
||
PUTT(
|
||
"%s%s%s%s",
|
||
scrlins < Max_lines ? "\n" : "",
|
||
scrlins < Max_lines ? Cap_clr_eos : "",
|
||
tg2(0, Msg_row),
|
||
Cap_clr_eol
|
||
);
|
||
fflush(stdout);
|
||
}
|
||
|
||
|
||
int main (int dont_care_argc, char *argv[])
|
||
{
|
||
(void)dont_care_argc;
|
||
before(*argv);
|
||
// +-------------+
|
||
windows_stage1(); // top (sic) slice
|
||
configs_read(); // > spread etc, <
|
||
parse_args(&argv[1]); // > lean stuff, <
|
||
whack_terminal(); // > onions etc. <
|
||
windows_stage2(); // as bottom slice
|
||
// +-------------+
|
||
signal(SIGALRM, end_pgm);
|
||
signal(SIGHUP, end_pgm);
|
||
signal(SIGINT, end_pgm);
|
||
signal(SIGPIPE, end_pgm);
|
||
signal(SIGQUIT, end_pgm);
|
||
signal(SIGTERM, end_pgm);
|
||
signal(SIGTSTP, suspend);
|
||
signal(SIGTTIN, suspend);
|
||
signal(SIGTTOU, suspend);
|
||
signal(SIGCONT, wins_resize_sighandler);
|
||
signal(SIGWINCH, wins_resize_sighandler);
|
||
|
||
for (;;) {
|
||
if (need_resize){
|
||
need_resize = 0;
|
||
wins_resize();
|
||
}
|
||
frame_make();
|
||
|
||
if (Msg_awaiting) show_msg(Msg_delayed);
|
||
if (Loops > 0) --Loops;
|
||
if (!Loops) end_pgm(0);
|
||
|
||
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); // ought to loop until done
|
||
} else {
|
||
long file_flags;
|
||
int rc;
|
||
char c;
|
||
fd_set fs;
|
||
FD_ZERO(&fs);
|
||
FD_SET(STDIN_FILENO, &fs);
|
||
file_flags = fcntl(STDIN_FILENO, F_GETFL);
|
||
if(file_flags==-1) file_flags=0;
|
||
fcntl(STDIN_FILENO, F_SETFL, O_NONBLOCK|file_flags);
|
||
|
||
// check 1st, in case tv zeroed (by sig handler) before it got set
|
||
rc = chin(0, &c, 1);
|
||
if (rc <= 0) {
|
||
// EOF is pretty much a "can't happen" except for a kernel bug.
|
||
// We should quickly die via SIGHUP, and thus not spin here.
|
||
// if (rc == 0) end_pgm(0); /* EOF from terminal */
|
||
fcntl(STDIN_FILENO, F_SETFL, file_flags);
|
||
select(1, &fs, NULL, NULL, &tv);
|
||
fcntl(STDIN_FILENO, F_SETFL, O_NONBLOCK|file_flags);
|
||
}
|
||
if (chin(0, &c, 1) > 0) {
|
||
fcntl(STDIN_FILENO, F_SETFL, file_flags);
|
||
do_key((unsigned)c);
|
||
} else {
|
||
fcntl(STDIN_FILENO, F_SETFL, file_flags);
|
||
}
|
||
}
|
||
}
|
||
|
||
return 0;
|
||
}
|