[Lazarus] Threads
Michael Schnell
mschnell at lumino.de
Thu Mar 22 17:10:52 CET 2012
Besides what the other said a very basic comment.
The location where an object is defined (i.e. within a TThread enabled
unit) or who created it (the main line code or the thread code) does not
matter. The Concept of classes, objects and instances is a matter of
memory allocation and pointers and not a concept of program flow. same
is absolutely independent. You can use one instance of a class in one
thread and another one in another thread. You can create an instance in
one thread and call its procedures and properties by another one. (BTW
this results in the fact that its very hard to define something like
"Thread-safe" for a class).
In fact you need to look exactly how the program flow of each thread is
before deciding what code needs to be protected regarding mutual
accesses by threads. Just looking at the objects does not help much,
Looking at the point where an object is created does not help at all.
-Michael
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