Thread-Specific Data: The functions.
Create a data key:
- int pthread_key_create(pthread_key_t *key,void (*destructor)(void *));
Remove a key:
- int pthread_key_delete(pthread_key_t key);
Assign thread-specific data:
- int pthread_setspecific(pthread_key_t key, void * value);
Access thread-specific data:
- void * pthread_getspecific(pthread_key_t key);