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