Re: creating thread in C++

Hi,

Sergei Organov schrieb:
void myclass::mythreadstub(void* arg)
{ ((myclass*)arg)->mythread();
}

...
myclass* m = new myclass();
_beginthread(&myclass::threadstub, NULL, 0, m);

Strictly speaking, this is not guaranteed to work as the function
pointer that you pass to pthread library should be declared 'extern "C"'
in C++, and you can't declare static member this way. I.e., static
member function could be incompatible with a function that pthread
library expects.

uh, I remember there have been something like this. IBM VCC++ 3.0 for OS/2 for instance uses a different calling convention for class members which cannot be changed.

The work around is to use a friend instead of a static class member function. If the entry point is public (or with some tricks protected) a statically linked function in the implementation file where _beginthread is called is sufficient. But I am unsure if a static function declaration within an extern "C" block is guaranteed.


Marcel
.

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