Usenet 1994 January/usenetsourcesnewsgroupsinfomagicjanuary1994.iso/sources/unix/volume27/top-3.2/part09/Changes

Text File | 1993-08-08 | 18.5 KB | 369 lines

Tue Jul 13 1993 - wnl (3.1 release)
    More small changes and minor bug fixes.  Brought bsd44 up to date
    and added modules for svr4.2 and IRIX.  Changed shar packaging to
    use Rich Salz's cshar stuff.

Wed Jul  7 1993 - wnl (3.1BETA)
    More changes and bug fixes to Configure.  Applied some other
    minor bug fixes and suggestions from the beta testers.  Added
    the "metatop" shell script and the "installmeta" rule to the
    Makefile to make handling multiple machine models and OS versions
    easier.  Added INSTALL and FAQ files.

Tue May 18 1993 - wnl (3.1BETA)
    Changed Configure to be compatible with most SVR4 environments
    (differing output from "ls -lg").  Also changed Configure,
    Makefile.X, etc., to look for module files in the subdirectory
    "machine" (thanks to Christos Zoulas).

Tue Apr 20 1993 - wnl (3.1BETA)
    Changed both occurences of "ls -1" in Configure to "ls".  This
    SHOULD produce the same result, and has the advantage that it
    doesn't produce an error on a system 5 machine.  Integrated other
    changes recommended in the first round of beta testing.

Wed Mar 10 1993 - wnl (3.1BETA)
    MAJOR CHANGE:  I have added a required function to all machine
    dependent modules, called proc_owner.  It takes a pid as an argument
    and returns the uid of the process's owner.  Such capability is
    necessary for top to run securely as a set-uid program, something
    that is needed for SVR4 implementations to read /proc.  I have
    retrofitted all modules except dgux with this function, but was
    not able to test most of them.  Top should now run securely as
    a setuid program.  Added 386bsd and sunos5 modules.  Added sunos4mp
    module for MP Suns.

Sat Feb 20 1993 - wnl (3.1ALPHA)
    Modified top.c and commands.c to compile correctly on System V
    derived Unixes (especially SVR4), but in a way that doesn't rely
    on an oracle-like declaration (that is, I don't use "ifdef SYSV").
    Fixed some bugs in "Configure" and "getans".  Added inspection of
    env variable "TOP" for options, and made -I default to showing
    idle processes.  Added "u" command to change username restriction
    on the fly.  Created shell script "suntop" for poor multi-version
    SunOS folks (like myself).

Wed Jun  3 1992 - wnl (3.0)
    "max_topn" wasn't being used everywhere it was supposed to be
    in top.c.  Many cosmetic changes, including copyright notices in
    all the .c files.  Version number is now handled by version.c and
    reflects the current patchlevel (which is initially set to 0).
    Changed Configure and Makefile to allow configurable variables for
    certain commands:  shell, cc, awk, install.  Updated README and
    Porting.  Ready to release to the world!

Mon May 18 1992 - wnl (2.9BETA)
    Added modules provided by Christos Zoulas.  Replaced screen.c
    with one modified by Christos and that will appropriately select
    and handle the sgtty, termio, or termios system.  Integrated many
    other changes recommended by Christos.  Fixed (I hope) the "-b"
    batch mode display bug.  Had to change loadavg to load_avg to avoid
    a conflict with 4.4BSD.

Mon Apr 27 1992 - wnl (2.8BETA)
    Added modules provided by Daniel Trinkle.  Added patchlevel.h,
    but the patch level is not yet reflected in the version number.
    Cleaned up m_sunos4.c a little.

Wed Apr 22 1992 - wnl (2.8BETA)
    Major internal reorganization.  All of the system dependent stuff
    is now really and truly separated from everything else.  The
    system dependent functions are contained in a separate .c file
    called a "module".  The Configure script knows how to find and
    set up these modules, but the human installer still needs to tell
    Configure which module to use (no automagic determination of
    machine type---sorry).  Added -U option to specify one user's
    processes, but there is no corresponding command...yet.  Other
    changes and improvements too numerous to mention here.  Currently
    there are only two modules:  sunos4 and umax.  But after this beta
    release is sent around, I expect more to be written.  I just hope
    that the machine-dependent abstractions don't need to change in
    the process.

Thu Mar 26 1992 - wnl (2.7BETA)
    Beta release with minimal architecture support.  Updated README
    and added a first cut at a Porting guide.  Added ioctl TIOCGWINSZ
    code from top2.5+ (courtesy of David MacKenzie).  I didn't even
    try porting the Ultrix support since I don't have access to an
    Ultrix machine.

Fri Oct 11 1991 - wnl (2.6)
    This version was not widely released.  It contained many changes.
    Here are the major ones:

    Put in Vixie's idle process hack.

    Enhanced type field in new_message to handle delayed messages.

    Changed u_process to automatically adjust for varying lines of
    output.  Management of screenbuf should now be completely contained
    in display.c.  Removed now extraneous code from CMD_number[12]
    portion of command switch in top.c.  This was the stuff that dealt
    with zeroing out lines in screenbuf.

    Finally made it all work correctly on a 386i.  Problems I had to
    overcome: kvm_nlist doesn't return 0 on success as advertised (it
    returns 1 instead); the results of a kvm_nlist are different
    (n_type can be zero even for a symbol that exists).

    Serious rearrangement for processor dependent stuff.  All nlists
    are now in separate files with the suffix ".nlist".  Most machine
    specific code is in "machine.c" surrounded by appropriate ifdefs---
    the goal is to eventually have all machine specific code in this
    file.  Managed to find a way to detect SunOS 4.x at compile-time:
    this is contained in the include file "sun.h".  Completely changed
    the memory display line for SunOS 4.x---it now displays a far
    more appropriate report.

    Created the shell script "Configure" to aid in the configuration
    step.

    Fixed a bug in init_termcap:  it will now tolerate an environment
    which does not have TERM defined (thanks to Sam Horrocks for
    pointing this out).

Tue Aug  9 1988 - wnl (2.5)
    Added changes to make top work under version 4.0 of the Sun
    operating system.  Changes were provided by Scott Alexander of the
    University of Pennsylvania.  Thanks!  Compile with "-Dsunos4" to
    get them.  Virtual memory statistics are not readily accessible
    under 4.0, so they don't show up in the output.

Thu Jul 31 1987 - wnl (2.4)
    Fixed a problem with the 4.0 Pyramid code.  The label "cp_time"
    doesn't exist in the 4.0 kernel anymore.  I think the code Carl
    sent me wants "percpu" instead.  That is what I am using and it
    appears to work.  375 code is still untested (at least by me).
    Also picked a great deal of lint out of the source.  Lint now only
    complains about a very few nitpicky things (there are far too many
    calls to "printf" to put a "(void)" in front of!), at least under
    SunOS.

Tue Jul 28 1987 - wnl (2.4a)
    Added changes for a Symmetrics Computer Systems s/375 machine.
    Changes were provided by Paul Vixie.  Thanks!  According to Mr.
    Vixie:  "These changes were not made at, by, or for SCS proper.
    SCS would probably be interested in them, but so far only the
    users' group has them.  They were made in February, 1987, to
    version 2.1 of the program, by Paul Vixie
    (dual!ptsfa!vixie![e-mail])."  His changes were
    integrated into version 2.3 to make version 2.4.

    The SCS peculiarities are summarized in Changes.scs.

Tue Jun  9 1987 - wnl (2.3 for real)
    Changed the includes for the extra code Carl sent me to only
    compile on Version 4.0 Pyramid machines.  This makes top still
    compilable on pre-4.0 Pyramids.  Specifically, this code is only
    compiled when both "pyr" and "CPUFOUND" are defined.

Wed Jun  3 1987 - wnl (2.3 with Pyramid additions)
    It's been a month and I still haven't done anything about
    distributing this version.  However, Carl Gutekunst from Pyramid
    has sent me some extra patches for some of the Pyramid code.  I
    just added those and will make them part of 2.3.  This fixes the
    following Pyramid problems:  adds the inclusion of <sys/systm.h>,
    uses the correct size for getting the kernel value _ccpu (this bug
    affected the Vax version as well), sums the elements of the percpu
    array to calculate a cp_time value (for OSx 4.0).

Fri May  1 1987 - wnl (2.3)
    I have finally finished all the changes for better support of
    oddbal terminals.  Added the low-level routine "clear_eol" which
    makes handling terminals without "ce" easy:  it uses spaces
    instead.  All direct uses of "clear_line" outside of screen.c have
    been changed to use this primitive.  A terminal with "os" is now
    handled in such that all situations that need overwriting are
    completely avoided (including several commands).  This required
    some changes to the way commands are translated into action (in
    "top.c").  Made several important changes to display.c to prevent
    overflowing of any of the fields.  Specifically, more than 99
    total processes and a cpu state that reaches 100%.  Had to make a
    small change to two casts in top.c, because the Sun 3.2 compiler
    was giving warnings on them.  Added the "-q" option which lets
    root run top at a nice of -20 (in case he thinks he really needs it).

Tue Dec 30 1986 - wnl (2.2)
    I think I fixed a bug reported by Julian Onions at Nottingham.
    Occasionally, top will core dump when the sprintf in either
    i_process or u_process overflows due to an exceptionally
    unrealistic time value.  I think it highly unlikely that top can
    get a bad proc structure (although I suppose it is possible), but
    the process time is read from the user structure, and that can
    sometimes be part garbage.  So, "get_ucpu" checks the value it
    returns to make sure its formatted form will not overflow the
    sprintf.  If this doesn't fix the bug, then more drastic measures
    will be necessary.  I plan to make this version the official
    "top 2.2".  [[ This version was never distributed very widely. ]]

Tue Dec  2 1986 - wnl (2.2c)
    Added to top.c the notion of a "failed command".  When a command
    produces a message (on the message line), an update does not
    follow it.  Before, the message was written and a new display was
    shown---purposefully not overwriting the message.  But the
    improvements to handle overstriking terminals and terminals
    without "ce" clear the screen before every display, which would
    erase the message.  Now, the message is displayed and top waits
    another full time interval before updating the display.  This
    works much better all around.

Mon Nov 24 1986 - wnl (2.2b)
    Created a new file, utils.c, and made appropriate changes to
    Makefile.  This new file holds all utility functions that can and
    may be used by more than one "module".  Improved i_memory and
    u_memory (display.c) so that screen updates for the values
    displayed are only changed when necessary.  Also made the line
    look better:  the last fixes made for a rather ugly display.
    Added the locally defined constant "LoadMax" and added code to
    top.c to send the cursor home after a space command is entered if
    the load average is higher than "LoadMax".  This provides visual
    feedback on loaded systems.

Mon Nov  3 1986 - wnl (2.2a)
    Widened the format for memory usage so that it can display 5
    digits.  This makes that line look a little ugly---maybe I'll fix
    that later.  Screen handling now understands "os" and a missing
    "ce".  It treats them identically:  clear the screen between each
    display.  Screen handling code now uses "cd" when appropriate
    (i.e.:  when user has shortened the screen).  Made i_loadave clear
    then screen and took out most of the explicit calls to "clear" in
    top.c.  This method is cleaner, especially in conjunction with
    "os" handling.  Added preprocessor variable "RANDOM_PW" for
    systems that access the passwd file randomly (Sun's yp and 4.3).
    With "RANDOM_PW" set, "getpwuid" is used instead of "getpwnam",
    but uid->username mappings are still hashed internally (because
    that is still faster than going to disk).

Mon Oct  6 1986 - wnl (2.1)
    A bug with the kill command was pointed out by "dciem!tim"---
    specifying a signal by name did not work correctly.  This bug has
    been fixed with a simple change to commands.c.  Another bug made
    the cpu state percentages incorrect the first time they were
    displayed.  This bug has also been fixed (changed top.c).

Thu Sep  4 1986 - wnl (2.0, at last)
    This is the version that will (hopefully) get released to the
    world as top 2.0.
    Added the "r" and "k" commands for renice and kill, respectively.
    This required adding a way to handle system call errors, and the
    addition of the "e" command.  Help screen and manual page were
    changed to reflect this change.  Changed all "#ifdef SUN" directives
    to "#ifdef sun", and changed all "#ifdef PYRAMID" directives to
    "#ifdef pyr".  As much as I hate those choices of preprocessor
    names (they too easily conflict with real variable names), it does
    make automatic compilation possible---people don't have to change
    the Makefile anymore for specific machines.  The manual page was
    changed to automatically incorporate the defaults as set in the
    Makefile (including an infinite value for TOPN) and the way the
    manual page is generated by the Makefile was changed to make
    maintenance of this information automatic.

Mon Jul 28 1986 - wnl (still pre 2.0)
    Real close now.  I put in a new definition for the macro "pagetok"
    that does an explicit shift of a constant expression involving
    PGSHIFT.  Appropriate checks are made if PGSHIFT is to small.
    "pagetok" is now used exclusively everywhere to convert kernel
    clicks to kilobytes.  I added a full blown interactive mode with
    the ability to change some of the runtime parameters (how many to
    display, time delay, etc.) while top is running.  I also
    incorporated a few ideas from the net:  control characters in the
    command name are replaced with '?'; the '-S' option makes the
    swapper and pager visible; options have been added to control the
    number of displays produced (this makes it easier to make
    performance snapshots with top).  I have also added the notion of
    "infinite" values for number of processes and number of displays.
    I fixed a long-standing bug in the uid to username mapping code
    that was only aggravated on the pyramids:  it was an ill-defined
    expression (akin to i = i++).  I tweaked the proc_compar routine
    for qsort slightly so that stopped processes were more likely to
    show up.  Manual page was updated to reflect all changes
    noticeable to the user.

Tue Jul  1 1986 - wnl (pre 2.0 -- 1.9999?)
    In the process of major revamping on the way to version 2.0.
    I have completely done away with curses by adding my own screen
    management routines in a separate file (screen.c).  The rationale
    for this is that top knows a whole lot more about what is and is
    not redundant on the screen and can compare simple integer values
    where curses would have to compare strings.  This has turned out
    to be a very big win speed-wise.  The proc_compar routine for
    sorting has been rewritten to include several more keys.  I
    decided this was necessary when I noticed that the "top" process
    itself kept disappearing off the top 10 list on a Sun-3.  All the
    processes had the same percentage (0%) and the sort wasn't really
    doing anything worthwhile.  I changed the expression that computes
    memory usage to use the ctob macro instead of just assuming that
    pages were 512 bytes.  More work still needs to be done before
    this version is usable.  I changed options-processing to use
    getopt and added appropriate incantations to the Makefile.

Wed Feb 20 1985 - wnl (still 1.8)
    Put in the ifdef FOUR_ONE statements to make top still compilable
    on a 4.1 system.  Apparently, there are some users out there that
    need this functionality.  Oh well.  I don't guarantee any of it,
    since I can't test it.  Made appropriate changes to README and
    final installation related changes to Makefile.

Sat Feb  2 1985 - wnl (1.8)
    Removed all the ifdef FOUR_TWO statements and made "top" into a
    4.2 only program.  If someone really wants to still run it on 4.1,
    then they can do all the work.  We don't have a 4.1 machine
    anymore, so I don't even know if the thing still works under 4.1.
    Cleaned up the Makefile and the README.  Added installation rules
    to the Makefile, as requested by several sites.  Fixed a very
    obscure divide-by-zero bug.  Added a second "key" to the qsort
    comparison function (proc_compar) so that comparisons are based on
    cpu ticks if the percentages are equal (provided by Jonathon
    Feiber at Sun).

Tue Dec 11 1984 - wnl (1.7)
    Added the virtual and real memory status line to the header area
    (provided by Jonathon Feiber at Sun)

Tue Nov 20 1984 - wnl (1.6)
    Added an "exit" if sbrk's fail.  Added changes from Jonathon
    Feiber at Sun:  ifdef SUN to make top work on Suns (they don't use
    doubles in the proc structure), register declarations, check for
    getting a user structure that has disappeared since the proc array
    was read (it used to die, now it just shows the process as swapped).

Tue Nov 13 1984 - wnl (1.5)
    If the number of displayable processes ("active_procs") was less
    than the number of requested processes ("topn"), top would
    segmentation fault.  This bug has been fixed.  Thanks to Prentiss
    Riddle at ut-sally for pointing out the existence of this bug.

Tue Oct 23 1984 - wnl (1.4)
    Finally fixed the hash table bug that caused processes owned by
    root to sometimes appear with either no name or a different name
    that had UID 0 (such as "operator").  Removed all the ifdef DEBUG
    blocks to make top ready for distribution to the real world.

Sun Apr  8 1984 - wnl (still 1.3)
    Made some slight changes to the display format.  It now looks more
    aesthetically pleasing.  Added some preprocessor constants so that
    the two defaults (number of processes and seconds of delay) easier
    to change.

Thu Apr  5 1984 - wnl (1.3)
    Changed the order in which things are done at initialization time.
    This way, if an error occurs before starting the main loop, curses
    will never get started.  Also changed other error handlers so that
    endwin() is called before any flavor of exit.  Specifying a number
    of processes that is more than the screen can handle is no longer
    fatal.  It displays a warning message and pretends the user
    specified the maximum for the screen.  Finally cured all the TSTP
    blues (well, almost all).  I removed my TSTP handler and convinced
    the system to always use the one that curses sets up.  Turns out
    that "sleep" was stepping all over it during a pause.  So, I don't
    use sleep anymore.  The only problem that remains with it now is
    redrawing the old display before updating it after a pause.

Tue Apr  3 1984 - wnl (from 1.0 to 1.2)
    I changed the format of the TIME column from just "seconds" to
    "minutes:seconds".  I also made pausing work correctly.  Screen
    redraws with an up to date display.  For compatibility with 4.2, I
    changed the name of the "zero" function to "bzero".  The makefile
    has been altered to handle versions for 4.1 and 4.2, and README
    has been updated to reflect these recent changes.