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        pthread_key_create (&thread_mem_key, ClearMemory);
        pQuery = new TQUERY;
        pthread_setspecific (thread_mem_key, (void *)pQuery);
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PQUERY  addr = NULL;
addr = (PQUERY)pthread_getspecific(thread_mem_key);
if (addr != NULL)
{
        delete addr;
}
  pthread_key_delete(thread_mem_key);
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