1 Thu Mar 30 2000 - wnl (3.5beta12)
2 Updated modules: m_aix41.c, m_aix43.c, m_mtxinu.c, m_sco5.c,
4 Included m_irixsgi.c from some source that's been floating around
5 SGI. Don't yet know how it compares to m_irix62.
7 Fri Mar 10 2000 - wnl (3.5beta11)
8 top.c: avoid potential loop if stdout gets closed, use macro
9 for p_active to avoid collision with system macros.
10 m_sunos5: widened some fields to accomodate 5.8.
11 m_decosf1: added ordering support
12 m_irix62_64: provides 64-bit module based on m_irix62.
13 m_irix62: skip bogus files in /proc directory
14 m_svr42MP and m_svr5: complete replacement with updated copies
15 m_mtxinu: complete replacement with updated copies
16 m_aix43: new module for 4.3
17 getans: replaced with a Bourne shell script
19 Mon Mar 6 2000 - wnl (3.5beta10)
20 m_sunos5.c: workaround for curses bug: ensure that TERMINFO has
23 Fri Jan 15 1999 - wnl (3.5beta10)
24 top.c: now check return code from read to avoid looping on eof.
25 top.c: delay of 0 now only valid for root.
26 decosf1.c: patches from Rainer Orth should fix most of the
27 problems with this module (including the display of certain
28 processes and runtime errors).
29 sunos5.c: Rainer insisted on putting the slash back in the
30 state field ("run/4") and widened the field to accomodate it.
31 aix.c: widened PID field for 6-digit pids (shortened NICE field)
32 module macosx added, thanks to Andrew Townley.
34 Fri Dec 18 1998 - wnl (3.5beta9)
35 Configure checks status of "make" and complains if it fails.
37 Thu Dec 17 1998 - wnl (3.5beta9)
38 Added module sco5 from Mike Hopkirk.
39 Added module netbsd132 from moto kawasaki.
41 Sun Oct 25 1998 - wnl (3.5beta9)
42 Added Casper's patches for sunos5 for the following:
43 produce same results as swap -s (5.5 and higher),
44 don't use system_pages kstat when /dev/kmem can be opened,
45 skip . and .. when reading /proc, replace use of SOLARIS24
48 Fri Sep 11 1998 - wnl (3.5beta9)
49 Added workaround to getans for the absence of $< in SCO Unix.
51 Wed Jul 1 1998 - wnl (3.5beta9)
52 Changed structure member "errno" to "errnum" in commands.c.
53 Replaced hpux10 module with one from John Haxby.
55 Fri Apr 17 1998 - wnl (3.5beta8)
56 Moved definition of _KMEMUSER earlier in m_sunos5.c. This should
57 fix the compilation problem with gnu 2.7.2.3, obviating the need
58 for the fixinc.svr4 patch, but hopefully will not affect anything
60 Added -DORDER to m_sunos4mp.c
62 Tue Nov 18 1997 - wnl (3.5beta7)
63 Added gcc 2.7.2.3 patch for fixinc.svr4 and changed INSTALL and
65 Added NetBSD HP9000 fix. Hopefully it doesn't break other
68 Fri Oct 24 1997 - wnl (3.5beta7)
69 Modified m_dcosx.c to change uses of procdir to xprocdir, avoiding
70 a name clash with an include file (Bryn Parrott)
72 Sat Oct 11 1997 - wnl (3.5beta6)
73 Incorporated Casper's patches for Solaris 2.6 and for the multi-
74 processor bug ("kstat finds too many cpus").
76 Sun Jan 20 1996 - wnl (3.5beta5)
77 Fixed Casper's m_sunos5 module: there was a poor interaction with
78 his use of OSREV and SunOS 5.5.1.
80 Fri Dec 20 1996 - wnl (3.5beta4)
81 Replaced m_sunos5 with a reworked version by Casper Dik. This one
82 should work under 2.6 and may not require that top be run setuid
83 to root under 2.5 or 2.6. This also fixed a bug in m_sunos5 that
84 was introduced in beta3.
85 Fixed calculation of OSREV in Configure.
87 Wed Nov 20 1996 - wnl (3.5beta3)
88 Incorporated contributed fixes to: bsdos2, irix62, freebsd20,
89 ultrix4, sunos5. Changed calculation of swap area in sunos5 (now
90 uses swapctl). sunos5 now understands idled processors. Changed
91 Configure to determine os revision using uname (when available)
92 and adding it to machine.c compiliation in Makefile as -DOSREV.
93 Changed calls to "exit" in modules to use "quit" instead.
95 Oct 20 1996 - wnl (3.5beta3)
96 Removed "time" from list of ordering choices: there's no easy way
97 to get cpu time for all processes (it's in the u area).
99 Fri Oct 18 1996 - wnl (3.5beta3)
100 hpux10 and hpux9: using a better means for determining when a
102 decosf1 now includes utils.h.
104 Fri Sep 13 1996 - wnl (3.5beta2)
105 Fixed Configure to build Make.desc in such a way that doesn't
106 require a long argument to sed.
108 Thu Sep 12 1996 - wnl (3.5beta2)
109 Fixed bug in display.c that affected empty cpustate names.
110 Created hpux1010 module - a variant of hpux10 that does not use
111 struct proc or struct user (suitable for HP/UX 10.10).
113 Wed Sep 11 1996 - wnl (3.5beta2)
114 Changes to sunos5 module: Removed WCPU column since it is meaningless
115 on a SVR4-based system. Added THR column to show number of threads
116 for each process. This was not straightforward: the information is
117 not stored in prpsinfo but rather in prstatus.
119 Tue Sep 10 1996 - wnl (3.5beta1)
120 Added patches for sunos4mp to provide order support.
122 Changed prime.c to include stdio.h for printf prototype.
123 Added conditional code to os.h and utils.c to handle systems
124 where sys_errlist is defined in stdio.h (such as NetBSD).
126 Mon Sep 09 1996 - wnl (3.5beta1)
127 Removed tar and shar rules from Makefile.X -- don't need them anymore.
128 Added -v option to display version number. Updated man page.
130 Thu Aug 29 1996 - wnl (3.4)
131 Replaced modules (from Tim Pugh): next 32, next40.
132 Fixed bug in username.c: hashing negative uids.
134 Thu Aug 22 1996 - wnl (3.4beta3)
135 Patched modules: ultrix4, sunos4, sunos5, utek, decosf1, irix5.
136 Added modules: next40, next32.
137 Fixed procstates update bug in display.c.
138 Fixed divide by zero bug in utils.c.
139 Fixed bad number in layout.h
140 Minor fixes to Configure.
141 Complete overhaul of FAQ.
143 Tue Feb 13 1996 - wnl (3.4beta3)
144 Added convex module from Warren Vosper (originally written by
147 Tue Feb 13 1996 - wnl (3.4beta2)
148 Fixed format_k in utils.c to calculate K and M values correctly.
149 Added check for gigabyte values ('G'). Changed sumamry_format
150 in display.c to use format_k where appropriate.
151 Changed creation of distribution tar file to place everything in
152 a top level directory.
154 Tue Jan 30 1996 - wnl (3.4beta2)
155 Added m_aix41 module. Added new tag type to module comments:
156 TERMCAP, which defined the library to use for a termcap library.
157 If no TERMCAP tag is found in the module's initial comment, then
158 Configure will default to "-ltermcap". AIX needs this since it
159 put all the termcap routines in libcurses(!)
161 Added m_bsdos2 (found lingering in my mailbox).
162 Updated m_svr4 to include support for NCR multiprocessors.
163 Fixed small bug in utils.c
165 Thu Jan 25 1996 - wnl (3.4beta1)
166 Fixed m_sunos5 invocation of gettimeofday to include "NULL" as
167 second argument. This provides compatability with the Posix-
168 compliant template provided with SunOS 5.5, but doesn't hurt
169 previous versions since they do bother with a template for that
172 Made changes (recommended by net users) to hpux10, ultrix4,
173 netbsd10, aux3 (replaced aux31). Added module for linux.
175 Fri Oct 10 1995 - wnl (3.4beta1)
176 Added user-contributed modules for SCO Unix, IRIX 5, HP/UX 10,
177 Pyramid DC/OSX. Changed Configure so that it runs in environments
178 whose c-shells have no 'eval'(!). Added support for multiple sort
179 ordering methods via the -o switch. This option requires support
180 from the machine dependent module: such support was added to
181 sunos5 (thus sunos54) and sunos4.
183 display.c: Changed CPU states display line to shorten the leading
184 tag if the data won't fit in the current width. Fixed a divide-by-
185 zero bug that affected ultrasparc servers (and potentially other
188 m_sunos5.c: Now asks the system for the correct pagesize rather than
191 Thu Mar 2 1995 - wnl (3.3 RELEASE)
192 Added module netbsd10 and renamed netbsd to netbsd08. Changed
193 Configure so that it does not use an initial default module name.
194 Made other compatability fixes to Configure. Added comments to
195 decosf1 concerning optimizer bug. Other documentation changes.
196 Added use of "prime.c" to Configure script.
198 Tue Feb 7 1995 - wnl (3.3beta6)
199 Still one more beta....
200 Fixes for sunos5 2.4 gcc core dump (it was an alignment problem).
201 Fixed and improvements for decosf1 (including use of format_k
202 for proper SIZE column formatting). Added modules freebsd20 and
205 Thu Feb 2 1995 - wnl (3.3beta5)
207 Fixed a few bugs in the sunos5 port pertaining to casting and
208 very large memory counts. Added "ifndef HAVE_GETOPT" to getopt.c
209 to provide for conditional compilation of the getopt function.
210 Those systems that have getopt in libc can add -DHAVE_GETOPT to
211 the CFLAGS line in the module to prevent the function from being
212 compiled. Added sunos54 module to accomodate SunOS 5.4
213 peculiarities. Added module for aux3.1.
215 Wed Jan 4 1995 - wnl (3.3beta4)
216 This is really taking too long......sigh.
217 Fixed SIGWINCH handling once and for all. It now remembers the
218 number of processes you want displayed even thru window resizes.
219 Fixed buffer conflict in utils.c (itoa and itoa7).
220 Lots of small improvements to the various modules were made over
221 the past month: too numberous to list here. SunOS 5 module made
222 more secure thru use of seteuid calls (other SVR4 modules should
223 be modified similarly). One final MP fix to sunos5, too. Module
224 for decosf1 was modified to accomodate V3.0.
226 Mon Apr 18 1994 - wnl (3.3beta3)
227 I think I finally got a sunos5 module that will work on MP
228 machines. Fixed cpu states figure in osmp41a so that
229 percentages never exceed 100%. Added shell script "install"
230 since Unix vendors can't seem to make up their minds on what
231 options they want to use for the one that comes with the OS.
232 Added netbsd modules from Christos. Fixed lots of other little
233 things over the past few months that I have long since forgotten.
235 Wed Dec 15 1993 - wnl (3.3beta2)
236 Added module patches from various users: hpux9, sunos5.
237 Fixed bug with batch mode (screen_width wasn't getting set).
238 Changes to accomodate 64 bit machines.
239 Fixed some bugs in command parsing ("renice 19 " did something
242 Mon Aug 30 1993 - wnl (3.3beta)
243 Added lots of little patches from various users.
244 Added routines to utils.c for intelligent formatting of kilobytes
245 and time. These are intended to be used in the modules when
246 formatting a process line. Added code to "summary_format" in
247 display.c to do intelligent formatting of memory quantities.
248 Redid display.c to allow for varying line widths and dynamic
249 reallocation of the screen buffer.
250 Added a SIGWINCH handler to top.c!
251 Added a constant, MAX_COLS, to top.h which defines the absolute
252 widest line we will ever allow. Changed allocations of "char fmt"
253 in all machine modules to use this constant rather than an abitrary
256 Fri Aug 13 1993 - wnl (3.3)
257 Changed return value definition of time-related functions in top.c,
258 display.c, and m_ultrix4.c to time_t (stuart@coral.cs.jcu.edu.au).
259 Fixed bug in display.c: line_update when start != 0.
261 Wed Aug 4 1993 - wnl (3.2 release)
262 Changes to Configure from Paul Vixie. Added modules for hpux9 and
265 Tue Jul 13 1993 - wnl (3.1 release)
266 More small changes and minor bug fixes. Brought bsd44 up to date
267 and added a module for svr4.2. Changed shar packaging to use Rich
270 Wed Jul 7 1993 - wnl (3.1BETA)
271 More changes and bug fixes to Configure. Applied some other
272 minor bug fixes and suggestions from the beta testers. Added
273 the "metatop" shell script and the "installmeta" rule to the
274 Makefile to make handling multiple machine models and OS versions
275 easier. Added INSTALL and FAQ files.
277 Tue May 18 1993 - wnl (3.1BETA)
278 Changed Configure to be compatible with most SVR4 environments
279 (differing output from "ls -lg"). Also changed Configure,
280 Makefile.X, etc., to look for module files in the subdirectory
281 "machine" (thanks to Christos Zoulas).
283 Tue Apr 20 1993 - wnl (3.1BETA)
284 Changed both occurences of "ls -1" in Configure to "ls". This
285 SHOULD produce the same result, and has the advantage that it
286 doesn't produce an error on a system 5 machine. Integrated other
287 changes recommended in the first round of beta testing.
289 Wed Mar 10 1993 - wnl (3.1BETA)
290 MAJOR CHANGE: I have added a required function to all machine
291 dependent modules, called proc_owner. It takes a pid as an argument
292 and returns the uid of the process's owner. Such capability is
293 necessary for top to run securely as a set-uid program, something
294 that is needed for SVR4 implementations to read /proc. I have
295 retrofitted all modules except dgux with this function, but was
296 not able to test most of them. Top should now run securely as
297 a setuid program. Added 386bsd and sunos5 modules. Added sunos4mp
300 Sat Feb 20 1993 - wnl (3.1ALPHA)
301 Modified top.c and commands.c to compile correctly on System V
302 derived Unixes (especially SVR4), but in a way that doesn't rely
303 on an oracle-like declaration (that is, I don't use "ifdef SYSV").
304 Fixed some bugs in "Configure" and "getans". Added inspection of
305 env variable "TOP" for options, and made -I default to showing
306 idle processes. Added "u" command to change username restriction
307 on the fly. Created shell script "suntop" for poor multi-version
308 SunOS folks (like myself).
310 Wed Jun 3 1992 - wnl (3.0)
311 "max_topn" wasn't being used everywhere it was supposed to be
312 in top.c. Many cosmetic changes, including copyright notices in
313 all the .c files. Version number is now handled by version.c and
314 reflects the current patchlevel (which is initially set to 0).
315 Changed Configure and Makefile to allow configurable variables for
316 certain commands: shell, cc, awk, install. Updated README and
317 Porting. Ready to release to the world!
319 Mon May 18 1992 - wnl (2.9BETA)
320 Added modules provided by Christos Zoulas. Replaced screen.c
321 with one modified by Christos and that will appropriately select
322 and handle the sgtty, termio, or termios system. Integrated many
323 other changes recommended by Christos. Fixed (I hope) the "-b"
324 batch mode display bug. Had to change loadavg to load_avg to avoid
325 a conflict with 4.4BSD.
327 Mon Apr 27 1992 - wnl (2.8BETA)
328 Added modules provided by Daniel Trinkle. Added patchlevel.h,
329 but the patch level is not yet reflected in the version number.
330 Cleaned up m_sunos4.c a little.
332 Wed Apr 22 1992 - wnl (2.8BETA)
333 Major internal reorganization. All of the system dependent stuff
334 is now really and truly separated from everything else. The
335 system dependent functions are contained in a separate .c file
336 called a "module". The Configure script knows how to find and
337 set up these modules, but the human installer still needs to tell
338 Configure which module to use (no automagic determination of
339 machine type---sorry). Added -U option to specify one user's
340 processes, but there is no corresponding command...yet. Other
341 changes and improvements too numerous to mention here. Currently
342 there are only two modules: sunos4 and umax. But after this beta
343 release is sent around, I expect more to be written. I just hope
344 that the machine-dependent abstractions don't need to change in
347 Thu Mar 26 1992 - wnl (2.7BETA)
348 Beta release with minimal architecture support. Updated README
349 and added a first cut at a Porting guide. Added ioctl TIOCGWINSZ
350 code from top2.5+ (courtesy of David MacKenzie). I didn't even
351 try porting the Ultrix support since I don't have access to an
354 Fri Oct 11 1991 - wnl (2.6)
355 This version was not widely released. It contained many changes.
356 Here are the major ones:
358 Put in Vixie's idle process hack.
360 Enhanced type field in new_message to handle delayed messages.
362 Changed u_process to automatically adjust for varying lines of
363 output. Management of screenbuf should now be completely contained
364 in display.c. Removed now extraneous code from CMD_number[12]
365 portion of command switch in top.c. This was the stuff that dealt
366 with zeroing out lines in screenbuf.
368 Finally made it all work correctly on a 386i. Problems I had to
369 overcome: kvm_nlist doesn't return 0 on success as advertised (it
370 returns 1 instead); the results of a kvm_nlist are different
371 (n_type can be zero even for a symbol that exists).
373 Serious rearrangement for processor dependent stuff. All nlists
374 are now in separate files with the suffix ".nlist". Most machine
375 specific code is in "machine.c" surrounded by appropriate ifdefs---
376 the goal is to eventually have all machine specific code in this
377 file. Managed to find a way to detect SunOS 4.x at compile-time:
378 this is contained in the include file "sun.h". Completely changed
379 the memory display line for SunOS 4.x---it now displays a far
380 more appropriate report.
382 Created the shell script "Configure" to aid in the configuration
385 Fixed a bug in init_termcap: it will now tolerate an environment
386 which does not have TERM defined (thanks to Sam Horrocks for
389 Tue Aug 9 1988 - wnl (2.5)
390 Added changes to make top work under version 4.0 of the Sun
391 operating system. Changes were provided by Scott Alexander of the
392 University of Pennsylvania. Thanks! Compile with "-Dsunos4" to
393 get them. Virtual memory statistics are not readily accessible
394 under 4.0, so they don't show up in the output.
396 Thu Jul 31 1987 - wnl (2.4)
397 Fixed a problem with the 4.0 Pyramid code. The label "cp_time"
398 doesn't exist in the 4.0 kernel anymore. I think the code Carl
399 sent me wants "percpu" instead. That is what I am using and it
400 appears to work. 375 code is still untested (at least by me).
401 Also picked a great deal of lint out of the source. Lint now only
402 complains about a very few nitpicky things (there are far too many
403 calls to "printf" to put a "(void)" in front of!), at least under
406 Tue Jul 28 1987 - wnl (2.4a)
407 Added changes for a Symmetrics Computer Systems s/375 machine.
408 Changes were provided by Paul Vixie. Thanks! According to Mr.
409 Vixie: "These changes were not made at, by, or for SCS proper.
410 SCS would probably be interested in them, but so far only the
411 users' group has them. They were made in February, 1987, to
412 version 2.1 of the program, by Paul Vixie
413 (dual!ptsfa!vixie!paul@ucbvax.Berkeley.EDU)." His changes were
414 integrated into version 2.3 to make version 2.4.
416 The SCS peculiarities are summarized in Changes.scs.
418 Tue Jun 9 1987 - wnl (2.3 for real)
419 Changed the includes for the extra code Carl sent me to only
420 compile on Version 4.0 Pyramid machines. This makes top still
421 compilable on pre-4.0 Pyramids. Specifically, this code is only
422 compiled when both "pyr" and "CPUFOUND" are defined.
424 Wed Jun 3 1987 - wnl (2.3 with Pyramid additions)
425 It's been a month and I still haven't done anything about
426 distributing this version. However, Carl Gutekunst from Pyramid
427 has sent me some extra patches for some of the Pyramid code. I
428 just added those and will make them part of 2.3. This fixes the
429 following Pyramid problems: adds the inclusion of <sys/systm.h>,
430 uses the correct size for getting the kernel value _ccpu (this bug
431 affected the Vax version as well), sums the elements of the percpu
432 array to calculate a cp_time value (for OSx 4.0).
434 Fri May 1 1987 - wnl (2.3)
435 I have finally finished all the changes for better support of
436 oddbal terminals. Added the low-level routine "clear_eol" which
437 makes handling terminals without "ce" easy: it uses spaces
438 instead. All direct uses of "clear_line" outside of screen.c have
439 been changed to use this primitive. A terminal with "os" is now
440 handled in such that all situations that need overwriting are
441 completely avoided (including several commands). This required
442 some changes to the way commands are translated into action (in
443 "top.c"). Made several important changes to display.c to prevent
444 overflowing of any of the fields. Specifically, more than 99
445 total processes and a cpu state that reaches 100%. Had to make a
446 small change to two casts in top.c, because the Sun 3.2 compiler
447 was giving warnings on them. Added the "-q" option which lets
448 root run top at a nice of -20 (in case he thinks he really needs it).
450 Tue Dec 30 1986 - wnl (2.2)
451 I think I fixed a bug reported by Julian Onions at Nottingham.
452 Occasionally, top will core dump when the sprintf in either
453 i_process or u_process overflows due to an exceptionally
454 unrealistic time value. I think it highly unlikely that top can
455 get a bad proc structure (although I suppose it is possible), but
456 the process time is read from the user structure, and that can
457 sometimes be part garbage. So, "get_ucpu" checks the value it
458 returns to make sure its formatted form will not overflow the
459 sprintf. If this doesn't fix the bug, then more drastic measures
460 will be necessary. I plan to make this version the official
461 "top 2.2". [[ This version was never distributed very widely. ]]
463 Tue Dec 2 1986 - wnl (2.2c)
464 Added to top.c the notion of a "failed command". When a command
465 produces a message (on the message line), an update does not
466 follow it. Before, the message was written and a new display was
467 shown---purposefully not overwriting the message. But the
468 improvements to handle overstriking terminals and terminals
469 without "ce" clear the screen before every display, which would
470 erase the message. Now, the message is displayed and top waits
471 another full time interval before updating the display. This
472 works much better all around.
474 Mon Nov 24 1986 - wnl (2.2b)
475 Created a new file, utils.c, and made appropriate changes to
476 Makefile. This new file holds all utility functions that can and
477 may be used by more than one "module". Improved i_memory and
478 u_memory (display.c) so that screen updates for the values
479 displayed are only changed when necessary. Also made the line
480 look better: the last fixes made for a rather ugly display.
481 Added the locally defined constant "LoadMax" and added code to
482 top.c to send the cursor home after a space command is entered if
483 the load average is higher than "LoadMax". This provides visual
484 feedback on loaded systems.
486 Mon Nov 3 1986 - wnl (2.2a)
487 Widened the format for memory usage so that it can display 5
488 digits. This makes that line look a little ugly---maybe I'll fix
489 that later. Screen handling now understands "os" and a missing
490 "ce". It treats them identically: clear the screen between each
491 display. Screen handling code now uses "cd" when appropriate
492 (i.e.: when user has shortened the screen). Made i_loadave clear
493 then screen and took out most of the explicit calls to "clear" in
494 top.c. This method is cleaner, especially in conjunction with
495 "os" handling. Added preprocessor variable "RANDOM_PW" for
496 systems that access the passwd file randomly (Sun's yp and 4.3).
497 With "RANDOM_PW" set, "getpwuid" is used instead of "getpwnam",
498 but uid->username mappings are still hashed internally (because
499 that is still faster than going to disk).
501 Mon Oct 6 1986 - wnl (2.1)
502 A bug with the kill command was pointed out by "dciem!tim"---
503 specifying a signal by name did not work correctly. This bug has
504 been fixed with a simple change to commands.c. Another bug made
505 the cpu state percentages incorrect the first time they were
506 displayed. This bug has also been fixed (changed top.c).
508 Thu Sep 4 1986 - wnl (2.0, at last)
509 This is the version that will (hopefully) get released to the
511 Added the "r" and "k" commands for renice and kill, respectively.
512 This required adding a way to handle system call errors, and the
513 addition of the "e" command. Help screen and manual page were
514 changed to reflect this change. Changed all "#ifdef SUN" directives
515 to "#ifdef sun", and changed all "#ifdef PYRAMID" directives to
516 "#ifdef pyr". As much as I hate those choices of preprocessor
517 names (they too easily conflict with real variable names), it does
518 make automatic compilation possible---people don't have to change
519 the Makefile anymore for specific machines. The manual page was
520 changed to automatically incorporate the defaults as set in the
521 Makefile (including an infinite value for TOPN) and the way the
522 manual page is generated by the Makefile was changed to make
523 maintenance of this information automatic.
525 Mon Jul 28 1986 - wnl (still pre 2.0)
526 Real close now. I put in a new definition for the macro "pagetok"
527 that does an explicit shift of a constant expression involving
528 PGSHIFT. Appropriate checks are made if PGSHIFT is to small.
529 "pagetok" is now used exclusively everywhere to convert kernel
530 clicks to kilobytes. I added a full blown interactive mode with
531 the ability to change some of the runtime parameters (how many to
532 display, time delay, etc.) while top is running. I also
533 incorporated a few ideas from the net: control characters in the
534 command name are replaced with '?'; the '-S' option makes the
535 swapper and pager visible; options have been added to control the
536 number of displays produced (this makes it easier to make
537 performance snapshots with top). I have also added the notion of
538 "infinite" values for number of processes and number of displays.
539 I fixed a long-standing bug in the uid to username mapping code
540 that was only aggravated on the pyramids: it was an ill-defined
541 expression (akin to i = i++). I tweaked the proc_compar routine
542 for qsort slightly so that stopped processes were more likely to
543 show up. Manual page was updated to reflect all changes
544 noticeable to the user.
546 Tue Jul 1 1986 - wnl (pre 2.0 -- 1.9999?)
547 In the process of major revamping on the way to version 2.0.
548 I have completely done away with curses by adding my own screen
549 management routines in a separate file (screen.c). The rationale
550 for this is that top knows a whole lot more about what is and is
551 not redundant on the screen and can compare simple integer values
552 where curses would have to compare strings. This has turned out
553 to be a very big win speed-wise. The proc_compar routine for
554 sorting has been rewritten to include several more keys. I
555 decided this was necessary when I noticed that the "top" process
556 itself kept disappearing off the top 10 list on a Sun-3. All the
557 processes had the same percentage (0%) and the sort wasn't really
558 doing anything worthwhile. I changed the expression that computes
559 memory usage to use the ctob macro instead of just assuming that
560 pages were 512 bytes. More work still needs to be done before
561 this version is usable. I changed options-processing to use
562 getopt and added appropriate incantations to the Makefile.
564 Wed Feb 20 1985 - wnl (still 1.8)
565 Put in the ifdef FOUR_ONE statements to make top still compilable
566 on a 4.1 system. Apparently, there are some users out there that
567 need this functionality. Oh well. I don't guarantee any of it,
568 since I can't test it. Made appropriate changes to README and
569 final installation related changes to Makefile.
571 Sat Feb 2 1985 - wnl (1.8)
572 Removed all the ifdef FOUR_TWO statements and made "top" into a
573 4.2 only program. If someone really wants to still run it on 4.1,
574 then they can do all the work. We don't have a 4.1 machine
575 anymore, so I don't even know if the thing still works under 4.1.
576 Cleaned up the Makefile and the README. Added installation rules
577 to the Makefile, as requested by several sites. Fixed a very
578 obscure divide-by-zero bug. Added a second "key" to the qsort
579 comparison function (proc_compar) so that comparisons are based on
580 cpu ticks if the percentages are equal (provided by Jonathon
583 Tue Dec 11 1984 - wnl (1.7)
584 Added the virtual and real memory status line to the header area
585 (provided by Jonathon Feiber at Sun)
587 Tue Nov 20 1984 - wnl (1.6)
588 Added an "exit" if sbrk's fail. Added changes from Jonathon
589 Feiber at Sun: ifdef SUN to make top work on Suns (they don't use
590 doubles in the proc structure), register declarations, check for
591 getting a user structure that has disappeared since the proc array
592 was read (it used to die, now it just shows the process as swapped).
594 Tue Nov 13 1984 - wnl (1.5)
595 If the number of displayable processes ("active_procs") was less
596 than the number of requested processes ("topn"), top would
597 segmentation fault. This bug has been fixed. Thanks to Prentiss
598 Riddle at ut-sally for pointing out the existence of this bug.
600 Tue Oct 23 1984 - wnl (1.4)
601 Finally fixed the hash table bug that caused processes owned by
602 root to sometimes appear with either no name or a different name
603 that had UID 0 (such as "operator"). Removed all the ifdef DEBUG
604 blocks to make top ready for distribution to the real world.
606 Sun Apr 8 1984 - wnl (still 1.3)
607 Made some slight changes to the display format. It now looks more
608 aesthetically pleasing. Added some preprocessor constants so that
609 the two defaults (number of processes and seconds of delay) easier
612 Thu Apr 5 1984 - wnl (1.3)
613 Changed the order in which things are done at initialization time.
614 This way, if an error occurs before starting the main loop, curses
615 will never get started. Also changed other error handlers so that
616 endwin() is called before any flavor of exit. Specifying a number
617 of processes that is more than the screen can handle is no longer
618 fatal. It displays a warning message and pretends the user
619 specified the maximum for the screen. Finally cured all the TSTP
620 blues (well, almost all). I removed my TSTP handler and convinced
621 the system to always use the one that curses sets up. Turns out
622 that "sleep" was stepping all over it during a pause. So, I don't
623 use sleep anymore. The only problem that remains with it now is
624 redrawing the old display before updating it after a pause.
626 Tue Apr 3 1984 - wnl (from 1.0 to 1.2)
627 I changed the format of the TIME column from just "seconds" to
628 "minutes:seconds". I also made pausing work correctly. Screen
629 redraws with an up to date display. For compatibility with 4.2, I
630 changed the name of the "zero" function to "bzero". The makefile
631 has been altered to handle versions for 4.1 and 4.2, and README
632 has been updated to reflect these recent changes.
nant's projects / dragonfly.git / blob