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util/boot/PatchWB.lha

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Showing:m68k-amigaosppc-amigaosppc-morphosi386-arosi386-amithlonppc-warpupppc-powerupgeneric
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Short:Fixes OpenWB() hangs,IPrefs and WB bugs
Author:thor at math.tu-berlin.de
Uploader:thor math tu-berlin de
Type:util/boot
Version:1.01
Requires:WB 3.0 or 3.1 (V39 or V40).
Architecture:m68k-amigaos
Date:1998-02-02
Download:http://aminet.net/util/boot/PatchWB.lha - View contents
Readme:http://aminet.net/util/boot/PatchWB.readme
Downloads:571
____________________________________________________________________________

Changes made:
	1.01 fixes a race condition indroduced with the 1.00, hopefully...

___________________________________________________________________________

This patch fixes two workbench related bugs:

- first, adding AppIcons with the workbench.library while the workbench
screen is closed crashes the system. This bug is fixed by opening the
workbench first.

- the OpenWorkBench() call hangs from time to time. Some fixes have been
available from time to time, but none of them seem to attack the bug at
its real roots. 

This IS NOT a task priority problem, but a real bug in IPrefs which locks
two semaphores in the wrong order. For details, study the source code
included.


Another remark: This is supposed to be a simple patch, the programming
techiques used here SHOULD NOT be used in a serious application. It uses
some internal intuition details and self modifying code to install the
patch, needed to fix the bug.PLEASE DON'T TRY THIS YOURSELF! The patch
will disable itself if a newer (post V40) workbench.library is available,
you should also remove it as soon as a newer version of IPrefs or SetPatch
gets available! SetPatch 43.6 and IPrefs 40.7 ARE NOT GOOD ENOUGH to 
prevent this hang.


January 1998

	Thomas Richter

____________________________________________________________________________

                        The THOR-Software Licence


This License applies to the computer programs known as "PatchWB".
The "Program", below, refers to such program.


The programs and files in this distribution are freely distributable
under the restrictions stated below, but are also Copyright (c)
Thomas Richter.


Distribution of the Program by a commercial organization without written
permission from the author to any third party is prohibited if any payment
is made in connection with such distribution, whether directly
(as in payment for a copy of the Program) or indirectly (as in payment
for some service related to the Program, or payment for some product
or service that includes a copy of the Program "without charge";
these are only examples, and not an exhaustive enumeration of prohibited
activities). However, the following methods of distribution involving
payment shall not in and of themselves be a violation of this restriction:


(i) Posting the Program on a public access information storage and
retrieval service for which a fee is received for retrieving information
(such as an on-line service), provided that the fee is not
content-dependent (i.e., the fee would be the same for retrieving the same
volume of information consisting of random data).



(ii) Distributing the Program on a CD-ROM, provided that the files
containing the Program are reproduced entirely and verbatim on such
CD-ROM, and provided further that all information on such CD-ROM be
redistributable for non-commercial purposes without charge.



Everything in this distribution must be kept together, in original
and unmodified form.




Limitations.

THE PROGRAM IS PROVIDED TO YOU "AS IS," WITHOUT WARRANTY. THERE IS NO
WARRANTY FOR THE PROGRAM, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. THE ENTIRE
RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD
THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY
SERVICING, REPAIR OR CORRECTION.



IF YOU DO NOT ACCEPT THIS LICENCE, YOU MUST DELETE ALL FILES CONTAINED IN
THIS ARCHIVE.

_____________________________________________________________________________


Contents of util/boot/PatchWB.lha
 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  453     616  73.5% -lh5- e2ad Jan 30  1998 PatchWB/PatchWB
[generic]                 1424    5376  26.5% -lh5- 99b5 Jan 31  1998 PatchWB/PatchWB.asm
[generic]                 1870    3871  48.3% -lh5- a5c9 Jan 30  1998 PatchWB/PatchWB.readme
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files    3747    9863  38.0%            Feb  2  1998

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