The
pthread_getspecific ();
function returns the value currently bound to the specified
Fa key
on behalf of the calling thread.
The effect of calling
pthread_getspecific ();
with a
Fa key
value not obtained from
pthread_key_create ();
or after
Fa key
has been deleted with
pthread_key_delete ();
is undefined.
The
pthread_getspecific ();
function may be called from a thread-specific data destructor function.
RETURN VALUES
The
pthread_getspecific ();
function will return the thread-specific data value associated with the given
Fa key .
If no thread-specific data value is associated with
Fa key ,
then the value NULL is returned.
