MS>  so (better):
 MS>    class RequestMutex
 MS>    {
 MS>     public:
 MS>        RequestMutex(Mutex & mutex) : mutex(mutex) { mutex.request();}
 MS>        ~RequestMutex() { mutex.release();}
 MS>     private:
 MS>        Mutex mutex;
 MS>    };
 MS>  function()
 MS>  {
 MS>   RequestMutex request(mutex);
 MS>   call someone();
 MS>   return rc;
 MS>  };
 MS>  now, request is a local object, and when an exception is thrown, ALL
 MS> local (stack based) objects get destroyed! so, ~RequestMutex is called and
 MS> the sema4 is released.

Any ideas on how to do this in plain C?

(sorry for excess quoting, mr.moderator)

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