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Text File | 1989-04-13 | 1.4 KB | 36 lines | [TEXT/GEOL] |
- Item 4101948 13-April-89 01:15
-
- From: UK0004 Bacchus & Smith, Paul Smith
-
- To: FRIEDRICH1 Friedrich, Steve
- ROLLIN1 Rollin, Keith A.
- ALGER Alger, Jeff
- MUYSVASOVIC1 ER&D - J-D Muys-Vasovic
-
- cc: MACAPP.TECH$ MACAPP Tech
-
- Sub: Re Dangerous locks (b7/8/9)
-
- Thanks to messrs Muys-Vasovic, Rollin, Friedrich, and Alger for their comments.
-
- I sincerely hope that the MacApp team will be able to implement something like
- the fLockCount approach. I believe that the (b9) principle of passing past and
- present locking states back and forth between objects is too dangerous (what
- about the toolbox programmers who misuse HGetState et al, or the assembler
- programmers who have to be constantly reminded to save and restore processor
- status instead of turning off and on interrupts: I know that everybody knows
- how to do it, but I also know how easy it is to forget) AND furthermore, as Mr
- Alger points out all this stuff is against the principles of object-oriented
- programming.
-
- After all, this is _such_ a basic point and it's a terrible shame to go to 2.0
- final with what is, to us, a serious defect in a low level of MacApp.
-
- Please, MacApp team???
-
- Best regards,
-
- Paul G Smith
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