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PowerCache
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Documentation
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History.txt
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1993-08-28
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The History of PowerCache
This file contains descriptions of the specific changes and fixes that
occur in the different releases of PowerCache. The most recent version is
first in the list.
The following list of abbreviations indicate the nature of the change:
MIN - Minor bug fixed
MAJ - Major bug fixed
NEW - New feature
CH - Change in operation
OPT - Optimization or improvement of existing feature
-----------------------------------------------------------------------------
PowerCache 37.64 - Now uses keyfiles for registration
05-Aug-1993 NEW German (deutsch) locale graciously provided by
Gerhard Kupka
CH Evaluation version now permits multiple volume caching,
leaving the startup requester and the half-our timer
as the only two constrains in the eval version 8^)
CH Now uses keyfiles rather than seperately compiled
versions for each registered user. New "registering"
section in the docs (read it!) and registration
form.
MIN PowerCache did not close the catalog it was using.
This made it very difficult to make new language
translations for PowerCache, since you had to reboot
the machine to test a modified string. Fixed.
OPT Removed redundancies in the GUI code, shaving some
500 bytes off the executable. Hey! It all adds up :-)
MIN ARexx command SETENABLEKEY was returning the previous
_disable_ key rather than the previous enable key.
Fixed.
----------------------------------------------------------------------------
PowerCache 37.58 - Additional minor changes
18-Jul-1993 MIN Devices with no TCB are no longer shown in the device
list. This also removed a few (harmless) Enforcer
hits that appeared when opening PowerCaches window.
NEW The distribution now contains the COMPLETE CatComp
source, including .cd file and all .ct files.
NEW Norsk (norwegian) locale graciously provided by
Mario Gonzalez
NEW Français (french) locale graciously provided by
Reza Elghazi
OPT Cache purge routine made signifficantly faster.
Floppy users will notice this for sure.
NEW Listviews in main window now have double-click
actions (device list -> install cache, currently
cached -> edit cache)
MIN Version strings added everywhere (was actually
missing from the executable as well. Oops!)
OPT Window message port sharing code rewritten so that
windows no longer reserve a signal bit each. This
means statistics and deviceinfo windows can now be
opened even though you are caching many units.
MIN Statistics windows were trashing memory. Fixed.
MAJ Zooming stat windows could cause crashes (bug
introduced in 37.51, sorry!) - Fixed.
-----------------------------------------------------------------------------
PowerCache 37.51 - Minor changes
01-Jul-1993 MIN USEHELP command was missing in the ARexx docs
OPT Minor optimization in file cache code
CH Statistics windows will no longer display buffer
usage for file caches (not much sense in that)
MIN In certain borderline cases, statistics windows
could cause division by zero errors. Fixed.
CH Distribution now includes version 38.1042 of
reqtools.library
-----------------------------------------------------------------------------
PowerCache 37.46 - First public release - ENJOY!
18-Jun-1993 CH NOHELP keyword replaced by a checkbox in the main
window
NEW Implemented USEHELP ARexx command (a la BEEP/POPUP)
MIN Minor syntax error in The Installer script corrected
MIN Starting PowerCache from another directory than the
current one meant no online help, unless PowerCache:
had been correctly assigned. Fixed.
OPT Excessive use of message ports (or, to be precise,
signal bits) would result in failure to use more
than three caches at a time, or open more than five
different windows of any type (info, statistics, etc).
PowerCache now only creates message ports where it
is strictly necessary.
MIN Opened devices were not always being closed if the
cache initialization code failed. Fixed.
MIN 'Currently Cached' listview was not being properly
updated after a Remove Cache operation. Fixed.
MIN Bug in the preferences file loading fixed.
NEW 'Currently Cached' listview entries now show cache
mode and type, as well as cache dimensions
NEW All windows can now be okayed by hitting RETURN or
ENTER, and cancelled using ESCape (as opposed to
pressing gadget shortcut keys or using the mouse)
MIN PowerCache would generate a [harmless] Enforcer hit
when pressing HELP over a LISTVIEW gadget. Fixed.
-----------------------------------------------------------------------------
PowerCache 37.35 - Second round of bug fixes
5-Jun-1993 NEW All gadgets now have keyboard shortcuts
CH No longer Inhibit()s drives before caching them
MIN PREFSFILE keyword didn't work
MIN 'Beep' feature now works as advertised
OPT Cache routines made generally faster
OPT Read-only caches are now 30-50% faster than
read/write caches.
OPT Cache write operations sped up. With a prefetch of 1,
no drive access will occur even if a large file is
copied onto a drive. It stays entirely in the cache.
MIN On exit, PowerCache would reset all device function
vectors - even those which it had failed to
initialize in the first place. Fixed.
MAJ Auto-configuration code was broken. It now works as
described in the docs.
MIN If PowerCache was stopped while its child task was
busy purging a cache, either PowerCache or the child
would hang (and the drive would not be completely
updated). Fixed.
CH Cache flush child task (executed when a cache times
out) is now "interruptable" so to speak. A Dir df0:
would take forever if the drive was being updated by
PowerCache. The Dir operation now takes precedence
over the flush operation, which will be postponed
until the drive becomes idle once again.
MIN PowerCache would hang or crash if reqtools.library
could not be opened. Fixed.
NEW PowerCache now waits for a validating drive to settle
down before adding a cache to it.
MIN Failure to allocate a cache line of the type selected
for that cache would cause a horrible system crash.
Fixed.
CH Pressing HELP over the main preferences window now
links AmigaGuide to the HelpInfo section in the manual,
and not simply to Main (the first node).
MAJ Low-memory handler was not being removed when quitting
PowerCache. Would cause instant guru if PowerCache
was stopped and the system then ran low on memory.
MIN Delay time for statistics windows was only being
ajusted once, not once per second. Fixed.
OPT Window refreshing (after a Zoom operation) is now
optimized and fully compliant with C= guidelines.
MIN The Install window wasn't refreshing gadtools
gadgets at all. It now does.
MIN A small error in the cache editing function could
cause unpredictable behaviour (that means GURU) when
okaying changes. Fixed.
-----------------------------------------------------------------------------
PowerCache 37.15 - First round of bug fixes
25-May-1993 MAJ PowerCache would crash if started twice (it will now
correctly wake up the dormant copy and exit)
MAJ Purge gadget in Cache Edit window would lock up
the program. Fixed.
MIN Internal structure arbitration tightened up. Could
cause lockups if removing a cache from a frantically
active drive.
OPT Cache buffer loading routines are now faster.
NEW Added NOHELP switch/tooltype
-----------------------------------------------------------------------------
PowerCache 37.10 - Internal beta (first attempt)
17-May-1993 - History begins.