class Foo
{
public:
Foo();
unsigned long WINAPI doStuff(void*);
};
Foo::Foo()
{
unsigned long threadId;
CreateThread(NULL, NULL, doStuff, NULL, NULL, &threadId);
}
unsigned long WINAPI Foo::doStuff(void* bar)
{
while(true)
do_more_stuff();
}
Threads and class member functions
Author
How can I use a class member function as the starting point for a new thread via CreateThread()? Perhaps some code would explain it better...
I believe you cannot have a thread run a class method because it wouldn''t be able to pass the implicit this . You may be able to pull it off if the class method is static, but I havn''t been able to.
Mike
Mike
Yes, the callback has to be static, but you can go right into a member function:
Edited to fix bug--thanks, jaxson
Edited by - Stoffel on June 21, 2001 2:47:44 AM
class Foo{private: unsigned long workerThread () { while (true) do_stuff (); return val; } static unsigned long threadStub (void *arg) { return ((Foo*) arg)->workerThread (); } public: Foo () { CreateThread (NULL, NULL, threadStub, this, NULL, &threadId); }}; Edited to fix bug--thanks, jaxson
Edited by - Stoffel on June 21, 2001 2:47:44 AM
I was going to tell you how, but Stoffel beat me to it 
There is one small mistake. It should be:
CreateThread (NULL, NULL, threadStub, this, NULL, &threadId);
There is one small mistake. It should be:CreateThread (NULL, NULL, threadStub, this, NULL, &threadId);
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