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pthread_getspecific(3)   BSD Library Functions Manual   pthread_getspecific(3)


NAME

     pthread_getspecific -- get a thread-specific data value


SYNOPSIS

     #include <pthread.h>

     void *
     pthread_getspecific(pthread_key_t key);


DESCRIPTION

     The pthread_getspecific() function returns the value currently bound to
     the specified key on behalf of the calling thread.

     The effect of calling pthread_getspecific() with a key value not obtained
     from pthread_key_create() or after 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 key.  If no thread-specific data value is
     associated with key, then the value NULL is returned.


ERRORS

     None.


SEE ALSO

     pthread_key_create(3), pthread_key_delete(3), pthread_setspecific(3)


STANDARDS

     The pthread_getspecific() function conforms to ISO/IEC 9945-1:1996
     (``POSIX.1'').

BSD                              April 4, 1996                             BSD

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